CN101283522A - Wireless media source for communicating with devices on a vehicle data bus - Google Patents
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Translated fromChinese申请相关application related
【0001】本申请要求2005年7月14申请的，代理人卷号为No.71162-020的美国临时申请No.60/699100的优先权，其标题为“PortableAudio Device With A Wireless Connection To A Car Stereo”；2006年6月2日申请的，代理人卷号为No.71162-027的美国临时申请No.60/803807的优先权，其标题为“Wireless Audio Source Integrated intoData Bus of Automobile”；和2006年7月13日申请的，代理人卷号为No.71162-050的美国实用新型申请No.11/457302的优先权，其标题为“Wireless Media Source for Communication with Devices On Data Busof Vehicle”。所有这些申请的内容包括在此以供参考。[0001] This application claims priority to U.S. Provisional Application No. 60/699,100 filed July 14, 2005, attorney docket No. 71162-020, entitled "Portable Audio Device With A Wireless Connection To A Car Stereo"; priority of U.S. Provisional Application No. 60/803,807, filed June 2, 2006, Attorney Docket No. 71162-027, entitled "Wireless Audio Source Integrated into Data Bus of Automobile"; and Priority to U.S. Utility Model Application No. 11/457,302, Attorney Docket No. 71162-050, filed July 13, 2006, entitled "Wireless Media Source for Communication with Devices On Data Bus of Vehicle." The contents of all of these applications are incorporated herein by reference.
技术领域technical field
【0002】本发明涉及与车辆一起使用的无线设备，更具体地涉及能够与车辆数据总线上的设备通信的无线媒体源。[0002] The present invention relates to wireless devices for use with vehicles, and more particularly to wireless media sources capable of communicating with devices on a vehicle's data bus.
背景技术Background technique
【0003】近年来，随着在汽车中实施大量复杂的控制和“便利”系统和特征，汽车设计人员在以提供功能、结构和操作稳定的方式集成所有这些系统方面面临增加的挑战。例如，现代汽车装配有涉及引擎控制功能，刹车，变速器控制(transmission control)，悬架特征(suspensionfeature)，气候控制，音频功能，蜂窝技术，语音识别，防盗设备等过多的电子装置。[0003] In recent years, with the implementation of a large number of complex control and "convenience" systems and features in automobiles, automotive designers have faced increasing challenges in integrating all these systems in a manner that provides functional, structural, and operational stability. For example, modern cars are equipped with a plethora of electronic devices involving engine control functions, brakes, transmission control, suspension features, climate control, audio functions, cellular technology, voice recognition, anti-theft devices, and more.
【0004】在许多情形中，这些不同子系统需要彼此互动。例如，许多引擎管理功能是相互关联的，并且必须以某种方式电气连接。现今在汽车中有多种电子控制机构。这些控制机构感测车辆测量量，例如，引擎转速/每分钟转数(RPM)，车辆速度，引擎温度等，并基于这些测量量判断。然后控制机构可发送多种命令给致动器从而对引擎做出调整或经仪表板上控制面板通知驾驶员潜在的问题。多种电子控制机构之间常规地传输和接收信息。例如，引擎必须将引擎速度传输给传动机构以便两个子系统互动。[0004] In many cases, these different subsystems need to interact with each other. For example, many engine management functions are interrelated and must be electrically connected in some way. There are a variety of electronic control mechanisms in automobiles today. These control mechanisms sense vehicle measurements such as engine revolutions per minute (RPM), vehicle speed, engine temperature, etc., and make decisions based on these measurements. The control mechanism can then send various commands to the actuators to make adjustments to the engine or to notify the driver of potential problems via the on-dash control panel. Information is routinely transmitted and received between various electronic control mechanisms. For example, the engine must transmit engine speed to the transmission for the two subsystems to interact.
【0005】随着这些汽车的复杂水平持续增加，汽车制造商面临着提供无缝集成车辆内设备和控制系统的增加的困境。仅用标准线路和连接器将独立的设备连接到一起已经不实用了。例如在现代安全系统的部件被集成到一起的情形中，通过接合线路和使用连接器来集成这类系统的部件导致不可接受的复杂度，线路电阻中热损耗导致超过可接受的功率消耗，以及增加的故障几率或技术问题。故障的复杂程度将使得技工难于在合理的时间段内定位和解决问题。[0005] As the level of sophistication of these vehicles continues to increase, automakers face an increasing dilemma in providing seamless integration of in-vehicle equipment and control systems. It is no longer practical to connect separate devices together using only standard wires and connectors. For example where components of modern security systems are integrated together, integrating components of such systems by splicing lines and using connectors leads to unacceptable complexity, heat loss in line resistance leads to more than acceptable power consumption, and Increased chance of failure or technical problems. The complexity of the fault will make it difficult for a technician to locate and fix the problem in a reasonable time period.
【0006】在某些新车辆中，提供了感测潜在碰撞的电子传感器。这些车辆中的电子传感器需要与悬架控制系统接口连接以便汽车悬架装置在预期到迫近的碰撞时更紧密(tighten up)。其他安全特征，如气囊和新近设计的安全带可能需要含有彼此电耦合和电耦合到其他设备的传感器。门锁，远程控制设备，天窗(moon roof)控制，灯，安全，座椅控制，加热座，气候控制，电子窗户以及它们与多种设备集成的附带要求是现代车辆增加的复杂性的额外例子，特别随着新设备，特征，和功能逐步增加。[0006] In some new vehicles, electronic sensors that sense potential collisions are provided. Electronic sensors in these vehicles need to interface with the suspension control system in order for the vehicle suspension to tighten up in anticipation of an imminent collision. Other safety features, such as air bags and newly designed seat belts may require the inclusion of sensors that are electrically coupled to each other and to other devices. Door locks, remote control devices, moon roof controls, lights, security, seat controls, heated seats, climate control, electronic windows and their attendant requirements for integration with multiple devices are additional examples of the added complexity of modern vehicles , especially as new devices, features, and functions are incrementally added.
【0007】现代车辆的多种子系统之间数据交换的必要性导致车辆制造商寻求改善的方式以更高的无缝度和更低复杂度的方式来将设备集成在一起。这些努力最终导致多种总线标准被用来电连接车辆中的设备。简而言之，标准化的电气总线被设计来连接相关设备。在车辆电子装置中使用总线具有多种优点，例如包括导通信号的标准化的和组织化的协议，较低的功率消耗，用于确保高优先级动作(如，安全相关的功能)优先于较低优先级动作(如，多媒体功能)的分级复用(hierarchicalmultiplexing)，利用较小的集成总线导线痕迹(integrated bus conductortrace)和相应的连接简化减少或消除昂贵和高功率消耗线路及连接器，以及其他特性。[0007] The necessity of data exchange between the various subsystems of a modern vehicle has led vehicle manufacturers to seek improved ways to integrate devices together in a more seamless and less complex manner. These efforts have culminated in a variety of bus standards being used to electrically connect devices in vehicles. In short, standardized electrical buses are designed to connect related devices. The use of the bus in vehicle electronics has several advantages, such as standardized and organized protocols including conduction signals, lower power consumption, and is used to ensure that high-priority actions (e.g., safety-related functions) take precedence over lower Hierarchical multiplexing of low-priority actions (e.g., multimedia functions) to reduce or eliminate expensive and high-power-consuming wiring and connectors with smaller integrated bus conductor traces and corresponding connection simplification, and other features.
【0008】有不同种类的示例性汽车总线。迄今，至少6种不同类型已经采用或在文献中提出。A类是在汽车中应用的复用布线系统(multiplexing wiring system)。虽然传统布线不可能被全部消除，但通过由已知的几种复用方案中的一种实现在同一总线上多个信号的传输和接收的电子中公知技术，可显著减少A类总线中的布线。B类是另一个基于复用的布线系统，该系统基于在节点间，而非独立设备间传输数据的概念(例如，汽车扬声器可与节点关联，该节点具有与总线系统中其他节点的共同特性)。C类是又一种基于复用的布线系统，该系统通过以较高频率传输数据而减少布线。排放/诊断总线(emission/diagnostic bus)是另一类总线，其涉及车辆排放设备或诊断设备的集成。[0008] There are different kinds of exemplary automotive buses. To date, at least 6 different types have been adopted or proposed in the literature. Class A is a multiplexing wiring system used in automobiles. Although it is impossible to completely eliminate traditional wiring, the transmission and reception of multiple signals on the same bus can be significantly reduced by one of several known multiplexing schemes. wiring. Class B is another multiplex-based cabling system based on the concept of transferring data between nodes rather than between individual devices (for example, a car speaker can be associated with a node that has common characteristics with other nodes in the bus system ). Class C is yet another multiplexing-based cabling system that reduces cabling by transmitting data at a higher frequency. An emission/diagnostic bus is another type of bus that involves the integration of vehicle emission or diagnostic equipment.
【0009】最近，消费者期望在车辆种使用多媒体设备或将多媒体设备集成到车辆中的更大的能力。集成车辆设备的愿望包括持续集成增加的数量的多媒体设备的活动空间。例如，在预期的更新的汽车中，扬声器不仅可连接到各无线电设备，CD，磁带播放器(cassette)和放大器系统，而且可连接到能够在扬声器上传输蜂窝电话信号的设备，或连接到数字音频播放器或车载DVD播放器。对于装配有最新无线电话便利特征的车辆，在有呼入电话时，扬声器可能需要静音。[0009] Recently, consumers have desired a greater ability to use multimedia devices in vehicles or to integrate multimedia devices into vehicles. The desire to integrate vehicle equipment includes the continuous integration of an active space for an increasing number of multimedia equipment. For example, in anticipated newer cars, the speakers may be connected not only to the various radios, CDs, cassette players and amplifier systems, but also to devices capable of transmitting cellular phone signals over the speakers, or to digital Audio player or car DVD player. In vehicles equipped with the latest wireless telephone convenience features, the speaker may need to be muted when there is an incoming call.
【0010】移动媒体总线是特别为移动媒体设备设计的，如蜂窝电话和GPS系统。X-by-Wire总线是用于实现电子系统添加和集成到车辆上从而增强和取代以前用机械系统操纵的任务的总线类型的术语。(更多车辆总线类型的信息可参看http://www.interfacebus.com/Design_Connector_Automotive.html中“Automotive buses”)。Mobile Multimedia LinkTM是所开发的与多媒体型设备一起使用的另一个标准。[0010] The mobile media bus is specifically designed for mobile media devices, such as cellular phones and GPS systems. The X-by-Wire bus is the term for the type of bus used to enable the addition and integration of electronic systems into vehicles to augment and replace tasks previously handled by mechanical systems. (For more information on vehicle bus types, see "Automotive buses" at http://www.interfacebus.com/Design_Connector_Automotive.html). Mobile Multimedia LinkTM is another standard developed for use with multimedia-type devices.
【0011】一种近期开发的在车辆中使用的总线方案是基于光纤线路间的光传输。MOST公司开发的MOST是定义多媒体点到点网络的标准。MOST被设计来提供基于总线/网络的汽车多媒体解决方案。MOST
【0012】MOST规范适于将多种多媒体设备组合到一个总线上。这类设备可包括，例如，集成的蜂窝电话，数字无线电设备，便携式膝上型计算机，放大器，GPS导航系统，CD换片器，扬声器，均衡器，视频播放器，等等。[0012] The MOST specification is suitable for combining multiple multimedia devices onto one bus. Such devices may include, for example, integrated cellular telephones, digital radios, portable laptop computers, amplifiers, GPS navigation systems, CD changers, speakers, equalizers, video players, and the like.
【0013】随着采用或使用多媒体设备的车辆持续发展，通过提供灵活和更低成本的机构从而将多媒体设备耦合到一起，MOST
【0014】消费者日渐满意和受欢迎的娱乐特征是使用连接便携式音频设备，如采用MPEG1音频压缩第3层(MPEG1 layer 3)的音乐播放器，如苹果公司的iPod或类似播放器的机构，在其车辆的立体声扬声器上播放音乐。消费者需要产生高品质声音并使用最少量外在装备的解决方案从而最小化与车辆内部繁杂布线关联的负面的美学效果。另一个受欢迎的娱乐特征是使用不同便携式媒体设备，如膝上型PC，PDA，GPS设备，游戏设备等等，从而与车辆中集成的其他设备互动。[0014] An entertainment feature that is increasingly satisfying and popular among consumers is the use of connected portable audio devices, such as music players employing MPEG1 layer 3 audio compression, such as Apple Inc.'s iPod or similar player mechanisms, Play music on their vehicle's stereo speakers. Consumers demand solutions that produce high quality sound and use a minimum amount of extrinsic equipment thereby minimizing the negative aesthetic effects associated with cumbersome wiring inside the vehicle. Another popular entertainment feature is the use of different portable media devices, such as laptop PCs, PDAs, GPS devices, gaming devices, etc., to interact with other devices integrated in the vehicle.
【0015】播放源自便携式音频播放器的音频的多种方法已经实施或在文献中提出。在一种方法中，如Yamamoto申请的美国专利申请公开号No.US2005/0049009A1揭示的那样，便携式音频播放器连接到“拔插(plug)”设备，该设备装配到车辆的标准点烟器上以便向拔插发射器供电。拔插设备处理来自便携式音频播放器的信号并用无线发射器将其转发为频率在车辆无线电设备的频谱内的AM或FM无线电电波。无线电电波由车辆标准无线电天线接收，并且来自便携式音频播放器的音乐是用车辆的无线电设备通过其扬声器播放的。在另一种方法中，如Lovin等人申请的美国专利公开号No.US2003/0053378A1中揭示的那样，包含无线收发器的便携式设备(如蜂窝电话或个人音频播放器)发射信号至圆柱形设备(cylindrical apparatus)内的第二收发器(或从其接收信号)。圆柱形设备处理所接收的信号并在FM无线电频谱上将其转发。圆柱形设备通过共轴缆线直接连接到车辆的无线电设备上并且通过指定FM频率上的无线电设备提供音频。[0015] Various methods of playing audio originating from portable audio players have been implemented or proposed in the literature. In one approach, as disclosed in U.S. Patent Application Publication No. US2005/0049009A1 filed by Yamamoto, the portable audio player is connected to a "plug" device that fits into the vehicle's standard cigarette lighter In order to power the plug-in transmitter. The plugging device processes the signal from the portable audio player and retransmits it with a wireless transmitter to AM or FM radio waves at frequencies within the spectrum of the vehicle radio. Radio waves are picked up by the vehicle's standard radio antenna, and music from the portable audio player is played through the vehicle's radio through its speakers. In another approach, as disclosed in U.S. Patent Publication No. US2003/0053378A1 to Lovin et al., a portable device (such as a cell phone or personal audio player) containing a wireless transceiver transmits a signal to a cylindrical device (cylindrical apparatus) within the second transceiver (or receive signals from). The cylindrical device processes the received signal and retransmits it on the FM radio spectrum. The cylindrical device connects directly to the vehicle's radio via a coaxial cable and provides audio via the radio on the designated FM frequency.
【0016】这些设备都具有缺点。例如，音频的品质显著比大多数便携式音频播放器的接近CD的品质差。FM和AM频带都缺少用于重现与便携式音乐播放器关联的较高品质的声音的动态范围。而且，传统AM和FM频带易受显著干扰的影响，这种干扰来自影响无线电波发射的物理障碍物和来自同一频率或该频率附近的其他FM和AM源。简而言之，声音质量降低。[0016] These devices have disadvantages. For example, the quality of the audio is significantly worse than the near-CD quality of most portable audio players. Both the FM and AM frequency bands lack the dynamic range for reproducing the higher quality sound associated with portable music players. Also, legacy AM and FM bands are susceptible to significant interference from physical obstructions affecting radio wave emissions and from other FM and AM sources at or near the same frequency. In short, the sound quality is reduced.
【0017】此外，这两种方法都要求直接连接到无线电设备自身，要么通过车辆天线(如Yamamoto的专利)或通过同轴输入(如Lovin的专利)。因此，对于采用数据总线连接多媒体设备的车辆，现有技术的方法都不能利用连接到总线的其他相关设备。例如，在使用现有技术方法的便携式音乐播放器的情形中，播放器不能访问或不能通过接口连接到总线上任何其他设备，如分立均衡器，音频放大器或用于记录音乐供以后播放的集成音频记录器。在蜂窝电话的情形中，电话不能访问总线上分立麦克风以便使接口允许驾驶员对着麦克风讲话，并因此经蜂窝电话将声音发送回呼叫者。此外，Lovin专利中公开的设备要求其本身硬布线连接到无线电设备，导致安装更复杂并更困难。[0017] Furthermore, both methods require a direct connection to the radio itself, either through the vehicle antenna (as in the Yamamoto patent) or through a coaxial input (as in the Lovin patent). Therefore, for a vehicle that uses a data bus to connect multimedia devices, none of the methods in the prior art can utilize other related devices connected to the bus. For example, in the case of a portable music player using prior art methods, the player cannot access or interface with any other device on the bus, such as a discrete equalizer, audio amplifier, or integrated audio amplifier for recording music for later playback. audio recorder. In the case of a cell phone, the phone does not have access to the discrete microphone on the bus in order for the interface to allow the driver to speak into the microphone and thus send the sound back to the caller via the cell phone. Furthermore, the device disclosed in the Lovin patent requires itself to be hardwired to the radio, making installation more complicated and difficult.
【0018】其他现有技术方法依靠将无线接收器直接连接到无线电设备，通过辅助输入装置或者通过左右立体声道。这些方法具有同样的限制，因为它们不能与总线上任何其他设备通过接口连接。[0018] Other prior art approaches rely on connecting the wireless receiver directly to the radio, either through an auxiliary input or through left and right stereo channels. These methods have the same limitation in that they cannot interface with any other device on the bus.
【0019】此外，实现任何便携式多媒体设备的理想全能(all-purpose)机构与总线无线互动，且其连接的部件增加总线上的特征和部件的很大的灵活性。目前，分立便携式媒体设备不能通过接口连接到多种总线标准上可用的多数总线特征和功能的任何一种。因此，车辆乘用人仅可使用制造时就集成到车辆的设备。[0019] Furthermore, an ideal all-purpose mechanism for any portable multimedia device interacts wirelessly with the bus and its connected components add great flexibility to the features and components on the bus. Currently, discrete portable media devices cannot be interfaced to any of the majority of bus features and functions available on a variety of bus standards. Accordingly, vehicle occupants may only use devices that are integrated into the vehicle at the time of manufacture.
【0020】结果，本领域需要提供产生高质量音频并且可与车辆总线上其他多媒体设备适当通过接口连接的设备。还需要提供多种未连接到总线的分立多媒体设备，其能够与连接到总线并集成在车辆内的其他设备互动。[0020] As a result, there is a need in the art to provide devices that produce high quality audio and that can properly interface with other multimedia devices on the vehicle bus. There is also a need to provide a variety of discrete multimedia devices not connected to the bus, which are able to interact with other devices connected to the bus and integrated in the vehicle.
发明内容Contents of the invention
【0021】本发明包括发射器模块用来从便携式音乐播放器接收音频内容，无线发射该内容至经适当的接口连接到主机总线的接收器模块，其中接收器模块可与和主机总线通过接口连接的适当设备进行通信，包括高质量音频重现的扬声器。[0021] The present invention includes a transmitter module for receiving audio content from a portable music player, wirelessly transmitting the content to a receiver module that is suitably interfaced to a host bus, wherein the receiver module can interface with the host bus appropriate equipment for communication, including loudspeakers for high-quality audio reproduction.
【0022】本发明进一步包括用来连接至总线上多种多媒体设备并与其以接口连接的第一便携式无线收发器，和耦合到该总线的第二便携式收发器，该总线经配置与第一便携式无线收发器通过接口方式无线连接，以便车辆外部的多种便携式媒体设备能够连接到第一便携式无线设备并经配置与连接到总线的任何适当的设备进行互动。[0022] The present invention further includes a first portable wireless transceiver for connecting to and interfacing with a variety of multimedia devices on a bus, and a second portable transceiver coupled to the bus, the bus configured to communicate with the first portable wireless transceiver. The wireless transceiver is wirelessly interfaced so that various portable media devices external to the vehicle can be connected to the first portable wireless device and configured to interact with any suitable device connected to the bus.
【0023】在一个方面中，用于发射音频内容到耦合至集成在车辆中的主机总线的接收器的无线音频源包括无线发射器模块，其经配置与便携式音频播放器的输出以接口连接，从而接收来自便携式音频播放器的音频信号，并用预定的无线协议无线发射音频信号，其中所发射的音频信号由耦合到与主机总线接口连接的接口上的无线接收器接收，该接口用于发射音频数据至总线上，并且其中所述无线接收器被配置为用预定的无线协议接收所发射的音频信号，并恢复信号中音频数据以便在车辆的扬声器上播放。[0023] In one aspect, a wireless audio source for transmitting audio content to a receiver coupled to a host bus integrated in a vehicle includes a wireless transmitter module configured to interface with an output of a portable audio player, Thereby receiving an audio signal from the portable audio player and wirelessly transmitting the audio signal using a predetermined wireless protocol, wherein the transmitted audio signal is received by a wireless receiver coupled to an interface connected to the host bus interface for transmitting the audio data onto the bus, and wherein the wireless receiver is configured to receive the transmitted audio signal using a predetermined wireless protocol and recover the audio data from the signal for playback on the vehicle's speakers.
【0024】在另一个方面，集成到车辆主机总线上的无线音频源包括发射器模块，该发射器模块包括用来接收来自便携式音频播放器的音频信号的一个和更多输入插孔，用于将音频信号转换成适于无线发射的第一格式的电路，和用预定的无线协议发射第一格式化的音频信号的天线，以及连接至主机总线的接收器模块，该接收器模块包括用于接收第一格式化的音频信号的天线和用于将第一格式化的音频信号转换为第二格式的电路，其适于将第一格式化音频信号中以第二格式适于发送的数据发射到主机总线上。[0024] In another aspect, a wireless audio source integrated into a vehicle head unit bus includes a transmitter module including one and more input jacks for receiving audio signals from a portable audio player for a circuit for converting an audio signal into a first format suitable for wireless transmission, and an antenna for transmitting the first formatted audio signal using a predetermined wireless protocol, and a receiver module connected to the host bus, the receiver module comprising a An antenna for receiving a first formatted audio signal and circuitry for converting the first formatted audio signal into a second format adapted to transmit data in the first formatted audio signal suitable for transmission in the second format to the host bus.
【0025】在另一个方面中，与车辆主机总线集成的无线音频源包括用于发射来自便携式音频播放器的音频信号至接收器模块的无线发射器装置，和用于发射音频信号至主机总线的无线接收器装置，以及用于在车辆扬声器上重现音频内容的播放装置。[0025] In another aspect, a wireless audio source integrated with a vehicle host bus includes a wireless transmitter device for transmitting audio signals from a portable audio player to a receiver module, and a wireless transmitter device for transmitting audio signals to the host bus. A wireless receiver device, and a playback device for reproducing audio content on vehicle speakers.
【0026】在又一个方面中，用经车辆的主机总线发射的信号在车辆扬声器上重现音频的方法，该方法包括：从发射器模块无线发射从连接到发射器模块的便携式音频播放器接收的音频内容；从发射器模块无线接收接收器模块处的音频内容；通过车辆主机总线的总线接口发射包括音频内容的信号至总线，该信号寻址到耦合至总线上扬声器各接口的节点；和通过扬声器重现音频内容。[0026] In yet another aspect, a method of reproducing audio on a vehicle speaker using a signal transmitted via a vehicle's host bus, the method comprising: wirelessly transmitting from a transmitter module and receiving from a portable audio player connected to the transmitter module wirelessly receiving the audio content at the receiver module from the transmitter module; transmitting a signal comprising the audio content to the bus via a bus interface of the vehicle host bus, the signal addressed to a node coupled to each interface of a speaker on the bus; and Reproduce audio content through speakers.
【0027】在进一步的方面中，使便携式媒体设备能够与连接到集成在车辆中的主机总线的设备进行通信的无线设备包括：第一便携式无线收发器，其被配置为用有线连接与便携式媒体设备连接；和第二无线收发器，其用有线连接耦合到主机总线上的接口，其中第一便携式无线收发器接收来自便携式媒体设备的数据，并用短程无线协议将包括设备地址的数据发送至第二无线收发器；且其中第二无线收发器使用短程无线协议接收数据并经总线将其发射到设备。[0027] In a further aspect, a wireless device that enables a portable media device to communicate with a device connected to a host bus integrated in a vehicle includes: a first portable wireless transceiver configured to communicate with a portable media device using a wired connection device connection; and a second wireless transceiver coupled to an interface on the host bus with a wired connection, wherein the first portable wireless transceiver receives data from the portable media device and sends data including a device address to the second wireless transceiver using a short-range wireless protocol Two wireless transceivers; and wherein the second wireless transceiver receives data using a short-range wireless protocol and transmits it to the device via the bus.
【0028】在本发明的又一个方面中，用于控制线连接到车辆主机总线的设备的便携式无线设备包括便携式遥控装置，其包括被配置为发射数据至第二无线收发器和从其接收数据的第一无线收发器，该第二无线收发器耦合到主机总线的接口上，其中第二无线收发器被配置为将从第一无线收发器无线接收的第一信号发射至一个或更多设备，且其中第二无线收发器被配置为无线发射从至少一个设备接收的第二信号至第一无线收发器。[0028] In yet another aspect of the present invention, a portable wireless device for controlling a device wired to a vehicle's host bus includes a portable remote control device including a wireless transceiver configured to transmit data to and receive data from a second wireless transceiver. a first wireless transceiver, the second wireless transceiver is coupled to an interface of the host bus, wherein the second wireless transceiver is configured to wirelessly transmit a first signal received from the first wireless transceiver to one or more devices , and wherein the second wireless transceiver is configured to wirelessly transmit a second signal received from the at least one device to the first wireless transceiver.
【0029】在本发明的又一个方面中，用于与耦合到车辆主机总线的设备进行无线通信的系统包括：第一收发器装置，其无线发射包括第一数据的第一信号和无线接收包括第二数据的第二信号；和第二收发器装置，其无线发射包括第二数据的第二信号至第一收发器装置和无线接收包括来自第一收发器装置的第一数据的第一信号；和主机总线接口装置，其连接设备至主机总线；以及设备通信装置，其经主机总线发射包括第三数据的第三信号至第二收发器装置，并经主机总线从第二收发器装置接收包括第四数据的第四信号。[0029] In yet another aspect of the present invention, a system for wirelessly communicating with a device coupled to a vehicle host bus includes first transceiver means for wirelessly transmitting a first signal comprising first data and wirelessly receiving a first signal comprising A second signal of second data; and second transceiver means for wirelessly transmitting a second signal comprising the second data to the first transceiver means and wirelessly receiving a first signal comprising first data from the first transceiver means and host bus interface means, which connects the device to the host bus; and device communication means, which transmit a third signal comprising third data to the second transceiver means via the host bus, and receive from the second transceiver means via the host bus A fourth signal including fourth data.
【0030】可以理解，通过下面的详细说明，本领域技术人员将易于理解本发明的其他实施例，本说明仅以示例方式示出和描述本发明的多种实施例。可以认识到，本发明能够以其他不同实施例实现，且其中的若干细节能够以多种其他形式修改，并都不偏离本发明的精神和范畴。因此，附图和具体描述在本质上被视为说明性的而非限制性的。[0030] It can be understood that, through the following detailed description, those skilled in the art will easily understand other embodiments of the present invention, and this description shows and describes various embodiments of the present invention by way of example only. It will be realized that the invention can be implemented in other different embodiments, and its several details can be modified in various other forms, all without departing from the spirit and scope of the invention. Accordingly, the drawings and detailed description are to be regarded as illustrative in nature and not restrictive.
附图说明Description of drawings
【0031】附属连接器的多个方面随附图仅以例子而非限制的方式示出，附图中：[0031] Aspects of the accessory connector are shown in the accompanying drawings by way of example only and not limitation, in which:
【0032】图1示出按照本发明实施例集成有便携式音乐播放器的车辆的示例性总线系统。[0032] FIG. 1 illustrates an exemplary bus system of a vehicle incorporating a portable music player according to an embodiment of the present invention.
【0033】图2是示出按照本发明另一个实施例耦合到主机总线的无线源和接收器的描述。[0033] FIG. 2 is a depiction showing a wireless source and receiver coupled to a host bus according to another embodiment of the present invention.
【0034】图3是按照本发明实施例与多个多媒体设备以接口连接的车辆总线的方框图。[0034] FIG. 3 is a block diagram of a vehicle bus interfacing with a plurality of multimedia devices in accordance with an embodiment of the present invention.
【0035】图4A和4B示出按照本发明实施例的将无线音频传输至车辆总线接口的接收器的示例性方法的概念图。[0035] FIGS. 4A and 4B illustrate conceptual diagrams of an exemplary method of transmitting wireless audio to a receiver of a vehicle bus interface in accordance with an embodiment of the present invention.
【0036】图5示出按照本发明实施例连接至用于发射音频内容至接收器模块的发射器模块的无线音频播放器。[0036] FIG. 5 illustrates a wireless audio player connected to a transmitter module for transmitting audio content to a receiver module in accordance with an embodiment of the present invention.
【0037】图6示出按照本发明实施例具有主机总线和连接的接收器模块的车辆仪表板。[0037] FIG. 6 illustrates a vehicle dashboard with a host bus and connected receiver modules in accordance with an embodiment of the present invention.
【0038】图7是按照本发明实施例连接膝上型PC至多种连接到车辆主机总线的设备的便携式无线收发器的图示。[0038] FIG. 7 is an illustration of a portable wireless transceiver connecting a laptop PC to various devices connected to a vehicle's host bus in accordance with an embodiment of the present invention.
【0039】图8是按照本发明实施例连接到便携式设备的便携式无线收发器。[0039] FIG. 8 is a diagram of a portable wireless transceiver connected to a portable device in accordance with an embodiment of the present invention.
【0040】图9A和图9B示出按照本发明实施例的车辆主机总线和便携式无线收发器上的多个设备。[0040] FIGS. 9A and 9B illustrate a vehicle host bus and various devices on a portable wireless transceiver in accordance with an embodiment of the present invention.
具体实施方式Detailed ways
【0041】在一个实施例中，本发明涉及使用车辆总线连接相关的部件，如多媒体部件。更具体地，本公开的一个方面涉及便携式音频播放器，其经此处所示的叉簧装置(cradle apparatus)或其他连接耦合到无线发射器模块。无线发射器模块含处理电路用以将来自便携式音频播放器的音频输出转换为适于经所选无线传输协议发射的形式。无线发射器模块也包括发射无线信号(over-the-air signal)的发射器设备。[0041] In one embodiment, the present invention involves using a vehicle bus to connect related components, such as multimedia components. More specifically, one aspect of the present disclosure relates to a portable audio player coupled to a wireless transmitter module via a cradle apparatus or other connection as shown herein. The wireless transmitter module contains processing circuitry to convert the audio output from the portable audio player into a form suitable for transmission over the selected wireless transmission protocol. Wireless transmitter modules also include transmitter devices that transmit over-the-air signals.
【0042】此外，无线接收器或无线收发器耦合到车辆总线上。无线接收器接收音频，从信号提取音频内容，并且用总线要求的信号发送格式将其发射到总线。然后，例如可沿总线传播信号至汽车的扬声器，该汽车扬声器类似耦合到总线。中间均衡(intervening equalization)和放大器电路也可位于总线中以便增加质量并提升音频信号的发射功率。以这种方式，本发明的装置可直接从便携式设备发射信号至车辆总线，与任何必须的位于总线上的电路或设备以接口连接，直接通过扬声器发射而无需使用车辆无线电频谱发射信号。本发明提供比现有解决方案更高的音频动态范围，并能够与车辆总线上的任何合适的多媒体设备以接口连接。[0042] Additionally, a wireless receiver or wireless transceiver is coupled to the vehicle bus. The wireless receiver receives the audio, extracts the audio content from the signal, and transmits it to the bus in the signaling format required by the bus. Then, for example, the signal can be propagated along the bus to the car's speakers, which are likewise coupled to the bus. Intervening equalization and amplifier circuits may also be located in the bus to increase the quality and transmit power of the audio signal. In this manner, the apparatus of the present invention can transmit signals directly from the portable device to the vehicle bus, interface with any necessary circuits or devices located on the bus, and transmit directly through the speaker without using the vehicle's radio frequency spectrum to transmit the signal. The invention provides a higher audio dynamic range than existing solutions and is capable of interfacing with any suitable multimedia device on the vehicle bus.
【0043】可用在本发明中的无线传输的标准可以是任何合适的类型，包括几种可用无线标准之一。示例包括BluetoothTM，HomeRFTM，多种IEEE802.11 WiFi标准，SkinplexTM，Ultra-Wideband(UWB)，IEEE ZigBee，网络环境(Ambient Network)，等等。[0043] The standard of wireless transmission that may be used in the present invention may be of any suitable type, including one of several available wireless standards. Examples include Bluetooth™ , HomeRF™ , various IEEE802.11 WiFi standards, Skinplex™ , Ultra-Wideband (UWB), IEEE ZigBee, Ambient Network, and others.
【0044】图1示出按照本发明实施例集成有便携式音乐播放器的示例性总线系统。图中示出系统总线140，其可用来传递信息至不同总线系统，或连接至不同核心车辆子系统(core vehicle subsystem)。这样的子系统可包括例如点火开关，引擎盖，行李箱，窗户和门开关，悬架系统，气囊，安全系统，引擎控制，传输控制装置，和其他部件。中央处理单元142，以及存储控制器144和存储器146可裁判在系统总线上传输哪个信号，还可裁判哪个信号可经桥136发送到主机总线110和从其接收。例如，存储器146可包含关于相对于较低优先级传输(如总线110上基于多媒体的传输)哪个传输是较高优先级传输的信息(如由于作为迫近碰撞而紧固车辆悬架系统)。[0044] FIG. 1 illustrates an exemplary bus system incorporating a portable music player in accordance with an embodiment of the present invention. A
【0045】除了常规总线裁判功能，CPU 142使用这些存储在存储器146中的数据和例行程序来判断哪个传输优先。在上面的例子中，CPU142可将信号传输到桥136从而防止主机总线110上有地址的设备发送信号至系统总线140，因而为较高优先级功能释放系统总线140。CPU 142也可使发射设备能够从系统总线140发送信息至主机总线110上的设备，反之亦然。[0045] In addition to conventional bus referee functions,
【0046】还包括发射器/接收器模块134，其被设计来发射来自主机总线110的信号，该信号指向系统总线140上的设备。模块134也用来接收来自桥138的信号以便传输到主机总线110上的适当设备。[0046] Also included is a transmitter/
【0047】图1也包括防火墙138，在该例子中，其耦合到桥从而防止从其他实体未授权入侵到耦合到系统总线140的子系统。防火墙138可被编程以保持耦合到系统总线140和主机总线110的子系统的安全。可替换地，独立防火墙(未示出)可结合主机总线110使用从而防止与耦合到主机总线110的多媒体系统的车辆无关的其他系统或用户的未授权入侵。某些形式的防火墙保护特别重要，其中涉及主机总线上的无线网络。[0047] FIG. 1 also includes
【0048】根据采用的总线标准，主机总线110不必仅包括多媒体型设备，也可包括其他车辆子系统。[0048] Depending on the bus standard employed, the host bus 110 need not include only multimedia-type devices, but may also include other vehicle subsystems.
【0049】连接到主机总线110上的是控制器120，其可根据存储在存储器118上的数据或代码裁判总线传输。裁判方法通常对采用的总线标准是专用的。例如，采用基于复用方案的总线时，控制器120可复用多种子系统，因此每个子系统以规定的时隙或频率信道执行传输或接收数据。结合主机总线110使用的特定协议不是本发明特定的设计细节。在本例中，假定主机总线110构成一组电线，其传输基带数字数据至不同子系统或从其各个子系统接收数据。[0049] Connected to the host bus 110 is a
【0050】图1还示出具有标准天线132的车辆无线电设备130用以接收诸如FM/AM发射。其他配置可涉及卫星无线电发射的接收。无线电设备130耦合到普通发射器和模拟数字转换器(TX/ADC)128，其含以有助于特定主机总线标准的信号发送格式将无线电信号发射至总线所必需的电路。在该例子中，TX/ADC 128包括模拟数字转换器用以将模拟音频信号转换为数字信号以在供总线上传输。TX/ADC 128也包括适当的总线接口控制器，该控制器被用于与特定总线协议进行接口通信。[0050] FIG. 1 also shows a
【0051】在图1中进一步示出两个示例性扬声器116和126。扬声器通过放大器114和124以及发射器电路112和122分别耦合到主机总线110。在车辆驾驶员在无线电设备130上播放FM立体声的情形中，数字化的立体声信号将经接收器/数字模拟转换器RX/DAC 112和RX/DAC122由扬声器116和126接收。RX/DAC 112和RX/DAC 122包括数字模拟转换器用以将音频信号重新转换为模拟形式。然后放大器114和124将信号提升至所需水平以便在扬声器116和126上的重现。[0051] Two
【0052】进一步说明该实施例中包括蓝牙发射器(Bluetooth TX)104的发射模块100。发射模块可通过其自身电池电源加电，连接到的车辆中的触点的硬布线连接通向车辆电池，或通过点烟器加电等。发射模块100连接到便携式媒体播放器102。为了本实施例，假定便携式媒体播放器102构成便携式音乐播放器。便携式音乐播放器102可以是使用mp3或其他音频压缩技术(如wma等)的标准音乐播放器，如苹果计算机公司的iPodTM，或RioTM mp3播放器等等。便携式音乐播放器102可以连接到发射模块100，该发射模块通过其输出耳机插孔(jack)连接到发射器中双立体声输入端。在某些实施例中，发射模块100包含有用于插入便携式音乐播放器的叉簧(cradle)，或用于将便携式音乐播放器连接到发射模块100的一组卡夹(clip)。发射模块100的物理配置实际是设计细节，本领域技术人员可考虑用于连接或固定便携式音乐播放器102至发射模块102的不同装置。可替换地，在某些实施中，便携式音乐播放器可以不被实体地固定到发射模块100。而是仅通过电线连接到模块100从而使音频能够发射到模块100。在另一种配置中，便携式音频播放器上另一个输出，如线路输出(line-out)或多针(multi-pin)适配器可用于替代耳机插孔输出。[0052] Further illustrate the transmitting
【0053】如上所述，该实施例中发射模块100包括蓝牙发射器104。发射器104从便携式音乐播放器102接收模拟立体声信号。发射模块100包括蓝牙发射器(TX)104，该蓝牙发射器使用调制器，放大器和其他电路元件上变换(up-convert)基带模拟立体声信号并将其调制到蓝牙(约)2.45GHz频带上以便经无线电波101发射。本领域公知，蓝牙标准将频带分成每1MHz 79个信道，并且用扩展频谱跳频方法(spreadspectrum frequency hopping methodology)发射信号。[0053] As mentioned above, the transmitting
【0054】在接收端，耦合到主机总线110的是蓝牙接收器(BluetoothRX)106。通过公知技术，接收器106恢复并解调从发射模块100接收的信号，并将其下变换(down-convert)为模拟基带信号。基带信号由将信号数字化为适于在总线上发射的TX/ADC模块108接收。TX/ADC也包括适当总线接口控制器，该控制器用来与特定的总线协议接口。总线控制器120授权数字化信号传输到主机总线110上。然后，由RX/DAC模块112和122接收的信号被转换到模拟域。然后，AMP模块114和124放大该信号，且音乐被重现在扬声器116和126上。此外，在某些实施例中，控制器120能够通过使用车辆无线电装置130上的可用外部控制装置使用户能够提供接收的音频信号的音量控制和均衡等。例如，便携式媒体播放器102可包括多针适配器，而发射器100可包括蓝牙接收器，其中控制信号从控制器120经蓝牙接收器发射到便携式媒体播放器102，搜索请求从而控制便携式媒体播放器上多种特征或功能，如停止，暂停，跳过，音量控制，等等。可替换地或额外地，控制器120可响应车辆乘客对立体声耳机单元上各种相应的控制装置的使用而简单发射控制信号给便携式媒体播放器。[0054] On the receiving end, coupled to the host bus 110 is a Bluetooth receiver (BluetoothRX) 106. The
【0055】在某些实施例中，TX/ADC模块108可集成到蓝牙RX 106上。也就是，模块106和108也可组合到单个物理模块中。TX/ADC模块108或RX/DAC模块112和122也可含额外的滤波器(未示出)以便减小任何可能已经注入到蓝牙信号中的噪声。类似的滤波器也可直接构造在蓝牙接收器106中。[0055] In some embodiments, the TX/
【0056】在图1所示的例子中，立体声信号是直接从发射模块100发送到接收蓝牙接收器106中。蓝牙和多种现有无线标准提供非常低的干扰信号，导致RF波101中低到可忽略的电气噪声量的注入。然后经总线通过适当电路，嵌入到信号中的音频内容被发射至车辆的扬声器116和126。这意味着可实现近似CD品质的声音，与前面使用FM和AM频谱的发射方法不同。[0056] In the example shown in FIG. 1, the stereo signal is sent directly from the transmitting
【0057】虽然图1中的示例使用BluetoothTM作为无线传输的实现，多种其他现有的和未来无线标准同样适合并且被本领域技术人员考虑，而不偏离本发明的精神和范畴。[0057] While the example in FIG. 1 uses Bluetooth™ as the implementation for wireless transmission, a variety of other existing and future wireless standards are equally suitable and contemplated by those skilled in the art without departing from the spirit and scope of the present invention.
【0058】图2示出按照本发明实施例耦合到主机总线的无线源和接收器。虽然本发明的原理同样可适用于任何合适的无线技术，如上所述，本发明是在BluetoothTM标准的背景下讨论的。应该指出，BluetoothTM标准的许多物理实施在实践上是可行的，图2中的实施仅为了说明的目的。[0058] FIG. 2 illustrates a wireless source and receiver coupled to a host bus in accordance with an embodiment of the present invention. As noted above, the invention is discussed in the context of the Bluetooth™ standard, although the principles of the invention are equally applicable to any suitable wireless technology. It should be noted that many physical implementations of the Bluetooth™ standard are practically possible and that the implementation in Figure 2 is for illustration purposes only.
【0059】音频源202可由音频播放器组成，如iPod或用于以多种格式中一种格式(MPEG1第3层，wma，等)重现压缩的音频的其他音频播放器。发射模块200含有用于发射实际信号的模拟和数字电路的通路。数字电路模块226在发射器模块200内，该数字电路模块226包含中央处理单元228和一个或多个存储器电路230。CPU 228运行包含在存储器230中的例行程序，其可包括例如执行高级音频分发框架(A2DP)协议以便在无异步连接(ACL)通道上传输立体声音频内容的程序，和用于传输信号的适当编码协议(如，SBC)。存储器230也可包括执行多种其他蓝牙规范(bluetooth profile)和协议的例行程序，例如确保数据以适当的头文件(如媒体分组头文件(MP)和L2CAP头文件)分组以及实现误差校正从而确保适应性数据传输(compliant data transmission)。图2也示出用于通过总线接口控制器252接收发射的信号并将其发射到主机总线210的接收模块206。在某些实施例中，总线接口控制器252可以是接收模块206的一部分。[0059]
【0060】在视图中，音频源通过其输出立体声耳机插孔连接到发射器模块200。(也可以使用便携式音频播放器202上的线路输出接口或其他接口来发射信号至发射器模块200，如上所述)。线路203表示发射器模块200的左连接和右连接，这两个连接203中每个连接都含有基带模拟音频信号。接收器204含有接收信号的电路，然后该信号被前置放大器205放大。经放大的立体声信号然后被馈进给模拟数字转换器208，该转换器将信号转换到数字域。然后，经数字化的立体声信号通过使用诸如SBC编码技术被编码。按照蓝牙标准，经SBC编码的数字信号可以以44.1KHz或48KHz频率采样。[0060] In the view, an audio source is connected to the
【0061】经编码的数字信号然后被馈进到调制器214，该调制器可以是高斯频移键控(Gaussian Frequency Shift Keying(GFSK))调制器。在这类调制方案中，数字“1”由源信号的正频率偏移表示，而数字“0”由负频率偏移表示。这类调制器的参数是本领域公知的，并可以在BluetoothTM核心规格(core specification)中找到。然后经调制的信号可通过数字模拟转换器216将经调制的信号转换到模拟域。低通滤波器218可用来限制可允许的信号频谱，因此减小不需要的噪声。然后信号被调制在2.402到2.480GHz的载波信号上，该载波信号表示用于跳频蓝牙信号的79个通道的频谱。频率合成器232可结合晶体振荡器用来恢复适当的信号载波频率并且丢弃具有不需要的或寄生(spurious)频率的信号，该信号可从上转换器220输出。[0061] The encoded digital signal is then fed to
【0062】然后所得到的信号(resulting signal)被放大器222放大，此后调谐器/开关(tuner/switch)224相对于信号进行一定的信号处理。这样的处理可包括信号平衡和信号分离到离散的时隙中，等等。然后所得到的信号通过带通滤波器234，在这里不需要的频率被丢弃。然后按照蓝牙标准，通过在一个或多个通道79上使用跳频，信号经天线213作为扩频信号(spread spectrum signal)被无线发射。此外，这一过程的时序和所用的传输协议由数字电路模块226决定，该模块可操作地连接到相关的前端接口。[0062] The resulting signal is then amplified by
【0063】然后扩频信号201由接收器模块206经天线233接收。接收器模块206可以是车辆中经适当的硬布线连接到总线的分立设备。可替换地，接收器模块206可以预置并集成到车辆中。如同发射器模块200，该接收器模块包含数字电路模块254，该数字电路模块254包括中央处理单元256和存储器258。存储器258存储用于执行蓝牙接收器协议的例行程序，如解码信号，读取和移除包头文件，适当时提供误差校正，以及通常地执行实施不同OSI层上的多种规范用以接收流式音频(如AADP，GAVDP，等)所必需的代码。[0063]
【0064】从天线233接收的信号经带通滤波器236滤波从而丢弃噪声。然后，信号可用调谐和开关电路236进行处理从而按需要解决信号平衡和开关。然后通过使用下转换器240和频率合成器242所得到的信号被下转换到基带。频率合成器242可包括信号恢复电路(signal recoverycircuitry)，如相位/频率监测器，充电泵(charge pump)，锁相环(PLL)和电压控制振荡器(VCO)。频率合成器242也可包括晶体振荡器用于基准频率。[0064] The signal received from
【0065】信号转换到基带后，该信号被放大器244放大并且使用模拟数字转换器246重新转换到数字域。然后通过使用例如本领域公知的频移键控调制器信号被解调。然后经编码的数字信号通过使用解码器250被解码，解码器250是例如采样频率为44.1KHz或48KHz的SBC解码器。[0065] After the signal is converted to baseband, the signal is amplified by
【0066】然后所得到的数字化信号被发射到总线接口控制器252。在某些实施例中可以是接收器模块206一部分的总线接口控制器252决定数字化音频信号传输到总线的时序和格式。总线接口控制器252包含用于接收来自接收器模块206信号的接收接口，和用于在主机总线上接收和发射信号的模拟前端，以及用于将所接收的数字音频流转换为总线特定的信号格式的转换电路。主总线控制器(类似于图1中控制器120)可执行裁判和复用功能，并且可以在用于发射音频信号的总线接口控制器252的总线可用带宽有关的指定的控制通道上，发送信号至总线接口控制器252并从其接收信号。[0066] The resulting digitized signal is then transmitted to the
【0067】除了与特定的总线协议一致，总线接口控制器252也可发送所寻址的其他信号到总线上其他设备和从其接收所寻址的信号，总线上其他设备如车辆无线电设备的音量控制器，均衡器，调谐器等或如下面参考图3所述的其他说明性设备。一旦音频信号被转换为适于传输总线的格式，含音频内容的所得到的信号就被发射到总线并且经各放大器和相关电路(如数字模拟转换器等)发送给车辆扬声器。[0067] In addition to being consistent with a particular bus protocol, the
【0068】图3中示出的是按照本发明实施例与多个多媒体设备以接口连接的车辆总线的方框图。在一个配置中，多个多媒体设备被集成到车辆中。然而，可以理解，在其他实施中，一个或多个设备可以是通过车辆内的外部可用总线连接被硬布线到总线的分立部件或其他“售后市场(after market)”设备。一个这样的例子包括膝上型PC 309。图3中示出多媒体型主机总线310。经硬布线的接口连接到总线的是安全系统304，CD-RW驱动器306，闪存插槽308，膝上型PC 309，数字音频记录器312，LCD显示器314，麦克风316，无线电设备318，扬声器320，CD换片器322，均衡器324，放大器326，主总线控制器330，和存储控制器332。存储控制器332连接到存储器334。[0068] Shown in FIG. 3 is a block diagram of a vehicle bus interfacing with a plurality of multimedia devices in accordance with an embodiment of the present invention. In one configuration, multiple multimedia devices are integrated into the vehicle. However, it is understood that in other implementations, the one or more devices may be discrete components or other "after market" devices that are hardwired to the bus through externally available bus connections within the vehicle. One such example includes
【0069】每个设备304、306、308、309、312、314、316、318、320、322、324、326和328通过主机总线310经多个相应的网络接口控制器303以接口方式连接。网络接口控制器303执行与图2中总线接口控制器252基本相同的功能。它们实质上是主控制器330的从控制器，该从控制器决定总线裁判，即哪个设备在什么时间或以什么频率在总线上发送哪个信号。这样的裁判技术取决于网络类型和总线协议，并且可包括多种复用方案，令牌的使用，或如以太网中采用的带冲突检测的随机传输。裁判的属性取决于采用的特定总线，并且是可不偏离本发明精神与范畴改变的设计细节。每个网络接口控制器303也可发送和接收来自主控制器330和来自其他网络接口控制器303的信号，从而使各多媒体设备304、306、308、309、312、314、316、318、320、322、324、326和328都能够彼此间发射和接收通信。[0069] Each
【0070】总线的物理属性可包括有助于所采用总线标准的任何类型的导线和导线集合，如嵌埋在一个或多个电路板中并且绕车辆设置从而连接到各网络接口控制器303的铜线。可替换地或额外地，总线可包括通过必要接触点的绝缘布线的使用，光纤缆线，或其他合适导电的装置。[0070] The physical properties of the bus may include any type and collection of wires that contribute to the adopted bus standard, such as those embedded in one or more circuit boards and positioned around the vehicle to connect to the various
【0071】类似于图2中总线接口控制器252，网络接口控制器303也提供前端模拟接口用以发射信号以及数字逻辑至总线和从总线接收信号，处理和转换电路用以将来自不同多媒体型设备的信号转换为与主机总线310采用的特定协议兼容的格式。[0071] Similar to the
【0072】主控制器330可通过存储控制器332访问存储在存储器334中的例行程序和数据。这种例行程序可用来执行总线协议。存储器334也可含数据缓存用于存储来自网络上任何设备的传输。此外，各网络接口控制器也可包括单个存储器组，该存储器组包括用于存储来自其他设备的传输的缓存。[0072]
【0073】无线发射器模块300连接到便携式音频播放器302以提供流式音频至无线收发器328。无线发射器模块300可设置在车辆内或车辆四周的任何位置。无线收发器328经其网络接口控制器303耦合到总线。发射器模块300和无线收发器328共同形成无线网络，使得能够传输流式音频至总线接口。无线网络可形成微微网(piconet)或个人域网络(PAN)，并且可用多种短距离/中等距离无线协议(如，BluetoothTM，HomeRFTM，多种IEEE 802.11 Wi-Fi标准，SkinplexTM，超宽带(UWB)，IEEE ZigBee，网路环境(Ambient Network)，等等)中任一种进行构建。无线收发器328包括接收器电路(如图1和图2所示)用于接收来自收发器模块300的流式音频。无线收发器328也可包括收发器用于无线发射信号至采用同一无线标准的多个无线设备，如无线(总线)使能的蜂窝电话336。无线收发器328也可包括用于临时存储流式音频内容的存储器。[0073]
【0074】本发明某些优点可易于通过图3中概念图理解。不同于前面的方法，其中使用FM发射器或无线接收器直接连接到无线电设备，本发明的无线发射器300可访问总线上任何合适的多媒体设备。例如，其中(如这里)无线电设备318，均衡器324和放大器326直接与总线310以接口连接，且用户选择使用音频流的无线发射器模块300时，用户可用无线电设备320或关联的仪表板电路上的控制装置控制音量、均衡和放大。主控制器330和关联的设备通过总线310互动从而经立体声扬声器320以用户所需的音量水平和均衡提供音频。[0074] Some of the advantages of the present invention can be readily understood through the conceptual diagram in FIG. 3 . Unlike previous approaches, where an FM transmitter or wireless receiver was used to connect directly to the radio, the
【0075】而且，使用图3中所述的总线方案，用户可选择发射流式音频至CD-RW驱动器306或数字音频记录器312以供记录和以后播放。也可经主机总线310提供流式音频至膝上型PC 309并存储在硬盘驱动器上，或提供到插在闪存插槽308中的闪存设备上。为了易于使用，可配置麦克风316从而识别关于用户可能希望实现的不同功能的语音命令，如在主机总线310上的一个设备上记录流式音频。音频流也可存储在存储器334上供耦合到总线上的设备之一的后续检索。[0075] Furthermore, using the bus scheme described in FIG. 3, the user may choose to transmit streaming audio to CD-
【0076】在涉及蜂窝电话336的实施例中，用户可选择在电话336和无线收发器328之间建立语音通信通道。在图3所示的配置中，无线收发器328也包括发射器用于将含语音信息的信号发射回电话336，提供全双向通信。借助无线发射器300，无线(总线)实现/使能的蜂窝电话可访问主机总线310上任何设备。例如，用户可采用麦克风316和车辆扬声器320从而实现免提会话。此外，与前面的方法不同，用户的蜂窝电话336可与例如数字音频记录器312以接口连接以便记录音频会话。如果用户的蜂窝电话336包括摄像机，则可经微微网从电话336上下载照片至无线收发器328。然后照片可显示在LCD显示器314上，或存储在膝上型PC 309上。多数个人域网络，包括BluetoothTM，经配置实现语音和音频(音乐)的有效传输。因此，用户可采用多种无线设备与主机总线310以接口连接，假设这些无线设备仅与特定的总线无线协议兼容。[0076] In an embodiment involving
【0077】在又一个实施例中，主机总线310可含一个或更多额外的收发器(未示出)用于使不同的无线协议在总线上共存。假定具有不同协议的无线收发器被配置为彼此不相互干扰(例如，考虑到可能的干扰，如果需要，主控制器330可被配置为一次仅使能一个收发器)，主机总线310可支持两个或更多无线协议。该配置为用户使用便携式无线设备增加了多功能性和灵活性，这些便携式无线设备采用不同操作系统并使用不同无线标准。[0077] In yet another embodiment,
【0078】图4是按照本发明实施例流动传输无线音频至车辆总线接口上的接收器的示例性方法的概念性视图。图4A和4B示出使用便携式音乐播放器的系统，该音乐播放器具有可操作地连接到发射模块输入端的输出端和经接口控制器连接到车辆总线的接收模块。如前面一样，为发射器和接收器选择的特定无线标准是本领域技术人员可理解而不偏离本发明的范畴所执行的设计细节。[0078] FIG. 4 is a conceptual illustration of an exemplary method of streaming wireless audio to a receiver on a vehicle bus interface in accordance with an embodiment of the present invention. 4A and 4B illustrate a system using a portable music player having an output operably connected to an input of a transmitter module and a receiver module connected to a vehicle bus via an interface controller. As before, the particular wireless standard chosen for the transmitter and receiver is a design detail implemented by those skilled in the art that can be understood without departing from the scope of the present invention.
【0079】参考图4A，该过程从用户启动来自便携式音乐设备的音频流的传输开始(步骤420)。在该步骤中，例如，用户可以将连接到发射器上输入插孔的导线连接至音乐播放器的输出耳机插孔，加电各设备，且一旦用户选择了他或她想要的歌曲或播放列表，就按下音乐播放器上“播放”按钮。此时，发射器模块接收音频信号并将其转换为预定格式以便在无线介质上传输(步骤422)。虽然该变换步骤是以图1和图2中图解示例的，发射模块和转换电路的特定架构可显著改变，且本质上取决于所选择的设备所用的无线协议。然后发射模块无线发射音频信号(步骤424)。发射的信号在其数据字段中包含接收器模块的目的地址。[0079] Referring to FIG. 4A, the process begins with the user initiating the transmission of an audio stream from the portable music device (step 420). In this step, for example, the user can connect the lead connected to the input jack on the transmitter to the output headphone jack of the music player, power up each device, and once the user selects the song he or she wants or plays the list, just press the "Play" button on the music player. At this point, the transmitter module receives the audio signal and converts it to a predetermined format for transmission over the wireless medium (step 422). Although this conversion step is illustrated diagrammatically in Figures 1 and 2, the specific architecture of the transmit module and conversion circuit can vary significantly and is essentially dependent on the wireless protocol used by the device chosen. The transmitting module then wirelessly transmits the audio signal (step 424). The transmitted signal contains the receiver module's destination address in its data field.
【0080】接收器模块进而接收流式音频信号，按需要解码和解调信号，并将表示音频内容的数据存储在临时缓存中(步骤426)，从而准备传输音频信号到总线上。与接收器模块关联的总线接口控制器(根据设计，其可以是接收器模块的一部分也可以不是)将信号处理为适于在总线上传输的格式。此外，总线接口控制器经主机总线发送信号至主总线控制器，请求分配的总线上的带宽，以便通过总线发送音频数据(步骤428)。根据总线类型，该信号可经专用控制通道发送或可以是数据通道上信息的指定部分。应该注意，在其他实施例中，接口控制器和主控制器间的此类握手(handshaking)可能是不需要的，如允许在总线上随机传输(通常具有碰撞检测机构，如以太网)的协议中或已为此类传输预定总线上专用通道的协议中。在步骤430，主总线控制器接收来自接口控制器的信号。[0080] The receiver module in turn receives the streaming audio signal, decodes and demodulates the signal as necessary, and stores data representing the audio content in a temporary buffer (step 426), thereby preparing the audio signal for transmission onto the bus. A bus interface controller associated with the receiver module (which may or may not be part of the receiver module, depending on the design) processes the signal into a format suitable for transmission on the bus. In addition, the bus interface controller sends a signal via the host bus to the host bus controller requesting allocated bandwidth on the bus to send audio data over the bus (step 428). Depending on the bus type, this signal can be sent over a dedicated control channel or can be a designated part of the information on the data channel. It should be noted that in other embodiments, such handshaking between the interface controller and the main controller may not be required, such as protocols that allow random transfers on the bus (usually with a collision detection mechanism, such as Ethernet) or in a protocol that has reserved a dedicated channel on the bus for such transmissions. At
【0081】现参考图4B，主总线控制器接收来自接收器总线接口的信号，该接口请求带宽的分配并随即检验主机总线的状态(步骤432)。如果主机总线忙(即，耦合到总线的一个或更多其他设备正发射信号)，则在授权音频数据在总线上的传输之前，主控制器仅等待直到主机总线可用。可替换地，主控制器可判断当前传输是否与较高优先权功能相关(步骤434)。例如，系统总线可请求使用总线，或车辆安全功能正在执行。当主控制器测定出总线当前被分配为较高优先级功能时，主控制器经过控制通道发送寻址到接收器总线接口的ACKNOWLEDGE信号，该信号指示接收器总线接口将以指定的时间间隔X推迟音频数据传输(步骤438)。在其他配置中，由主总线控制器发送的ACKNOWLEDGE信号仅指示接收器总线接口应保持闲置，并延迟任何音频内容的传输直到总线可用，此时主总线控制器将TX OK信号发回至接收器总线接口。[0081] Referring now to FIG. 4B, the host bus controller receives a signal from the receiver bus interface requesting allocation of bandwidth and then checks the status of the host bus (step 432). If the host bus is busy (ie, one or more other devices coupled to the bus are transmitting), the host controller simply waits until the host bus is available before authorizing the transmission of audio data on the bus. Alternatively, the master controller may determine whether the current transmission is related to a higher priority function (step 434). For example, a system bus may request use of the bus, or a vehicle safety function may be executing. When the host controller determines that the bus is currently assigned a higher priority function, the host controller sends an ACKNOWLEDGE signal addressed to the receiver bus interface via the control channel, which indicates that the receiver bus interface will be delayed by a specified time interval X Audio data transmission (step 438). In other configurations, the ACKNOWLEDGE signal sent by the master bus controller simply indicates that the receiver bus interface should remain idle and delays the transmission of any audio content until the bus is available, at which point the master bus controller sends a TX OK signal back to the receiver bus interface.
【0082】参考图4B中实施例，主总线控制器等待指定时间间隔X传递并再校验主机总线状态(步骤432)。如果没有使用主机总线(步骤434)，主总线接口发送TX OK信号至接收器总线接口。在该实施例中，接收器模块随即可发送一个或更多寻址到无线电总线接口的传输从而实现无线电设备控制音乐流的设定和音量调节(步骤440)。一旦握手完成，接收器模块传输寻址到与车辆扬声器关联的接口节点的音频信号(步骤442)。同时，无线电设备可发送信号至接收器模块和车辆扬声器及从其接收信号(例如，通过控制通道)，从而通过车辆无线电设备对声音复制建立控制。总线上其他设备，如均衡器也可用来与无线电设备，接收器模块和扬声器节点通信从而控制关于扬声器上音频播放的设定。无线电设备也可被配置为在需要时执行诸如暂停，停止，跳过，倒回等功能。本发明这一方面使得驾驶员能够使用无线电控制装置来调整与音频播放关联的多种设定(步骤446)。[0082] Referring to the embodiment in FIG. 4B, the host bus controller waits for a specified time interval X to pass and rechecks the status of the host bus (step 432). If the host bus is not used (step 434), the host bus interface sends a TX OK signal to the receiver bus interface. In this embodiment, the receiver module may then send one or more transmissions addressed to the radio bus interface to enable the radio to control music streaming settings and volume adjustments (step 440). Once the handshaking is complete, the receiver module transmits an audio signal addressed to the interface node associated with the vehicle speaker (step 442). Simultaneously, the radio may send and receive signals to and from the receiver module and vehicle speakers (eg, via the control channel), thereby establishing control over sound reproduction through the vehicle radio. Other devices on the bus, such as equalizers, can also be used to communicate with radios, receiver modules, and speaker nodes to control settings regarding audio playback on the speakers. The radio can also be configured to perform functions such as pause, stop, skip, rewind, etc. when required. This aspect of the invention enables the driver to use the radio controls to adjust various settings associated with audio playback (step 446).
【0083】图5和图6示出按照本发明实施例连接到发射器模块以便传输音频内容到车辆主机总线上接收器模块的无线音频播放器的示例。参考图5，便携式音频播放器502，如mp3播放器，PDA，具有音频播放能力的移动电话等被固定在发射器模块500的配件上。便携式音频播放器502包含显示器514用以察看歌曲，播放列表等的特征，以及歌曲的多种属性。控制按钮516使得用户能够控制诸如播放，暂停，停止等功能。线路510从发射器模块500连接到便携式音频播放器502的耳机插孔512，便携式音频播放器502的耳机插孔512提供模拟基带立体声输出信号，该信号被发送到发射器模块500。发射器模块500包含大量已知处理电路和存储器中的任一种用于接收音频信号并将其转换为适于在无线网络上传输的格式，如HomeRF，IEEE 802.11，蓝牙等等。发射器模块500通过天线(集成到发射器模块500)发射含音频内容的无线信号508。通过使用发射器模块500自身的电池，连接到车辆电源的硬布线连接，或通过连接到发射器模块500的标准点烟器软线，可以将功率施加到发射器模块500。[0083] FIGS. 5 and 6 illustrate an example of a wireless audio player connected to a transmitter module for transmitting audio content to a receiver module on a vehicle's host bus in accordance with an embodiment of the present invention. Referring to FIG. 5 , a
【0084】图6是按照本发明实施例的示例性车辆仪表板的图示。车辆仪表板610包括无线电设备614，CD换片器618，功率和音量按钮614，和用于控制无线电设备的多种功能的多种按钮及传感器616。还揭示了“操纵杆”619用于使车辆乘客控制多种音频多媒体功能。图6中概念性示出集成到车辆的主机总线608。主机总线608连接到无线接收器模块606。虽然主机总线608被集成到车辆上，但其可包括接口点(在车辆的仪表板上或其他部分)用于使用户能够将其他多媒体设备连接到总线上。在一个实施例中，无线接收器模块608被集成到车辆上。在另一个实施例中，无线接收器模块608是用户可通过位于车辆内的适当接口连接到总线的分立部件。在接收器模块没有被集成到车辆的情况下，接收器模块也可以从点烟器620接收功率或从连接到车辆电源的其他硬布线连接接收功率。仪表板610还包含立体声扬声器622。[0084] FIG. 6 is an illustration of an exemplary vehicle dashboard in accordance with an embodiment of the present invention.
【0085】接收器模块606上的天线(未示出)从发射器模块500接收音频信号508(参看图5)。如参考前面实施例的说明，由于与总线配置关联的优点，用户可选择从便携式音频播放器500重现音频(图5)，并采用控制装置614和616调整其音量和声音特征(如平衡，均衡，等)。在其他实施例中，用户可用便携式音频播放器500上的按钮做出这些调整并控制这些功能。来自便携式音频播放器500的音乐(图5)由扬声器622重现。[0085] An antenna (not shown) on
【0086】参考图5，发射器模块500可以是小便携式设备，其在某些配置中有“夹持(clip-on)”或装配能力，从而使得便携式音频播放器502“附着(piggyback)”到发射器模块500上。在其他实施例中，发射器模块500可以与便携式音频播放器502分开，仅通过用于从便携式音频播放器502传输音频数据至发射器模块500的电线连接。在其他一些实施例中，发射器模块可被集成到车辆的仪表板上或被集成在车辆的驾驶员座与乘客座之间，如图中示例性发射器模块500所示。无论发射器模块500(图5)是与车辆一起使用的“售后市场”的独立模块，还是在制造时集成到车辆上，其都是设计选择，本领域技术人员中可理解的实施方案不会偏离本发明的精神或范畴。[0086] Referring to FIG. 5, the
【0087】在本发明的另一个方面中，揭示了一种便携式无线收发器。便携式收发器的用户可发射数据至耦合或连接到主机总线的第二收发器和从其接收数据(为了本公开的目的，“耦合”或“连接(wire)”意味着或者直接耦合，或者通过中介电路(intervening circuitry)，如网络接口控制器耦合)。进而，第二收发器可经主机总线发射数据，且其地址出现在数据中的设备可识别信号和对其做出相应处理。通过使用许多如上所述的小范围无线技术，便携式收发器可以构成无线收发器。可替换地，便携式收发器可以是双向遥控装置的一部分，用于在一个设备中控制多种功能，如车辆安全系统和多种多媒体设备(如CD播放器，卫星无线电，GPS系统，等)。[0087] In another aspect of the invention, a portable wireless transceiver is disclosed. A user of a portable transceiver may transmit data to and receive data from a second transceiver coupled or connected to the host bus (for purposes of this disclosure, "coupled" or "wired" means either directly coupled, or via intervening circuitry, such as network interface controller coupling). In turn, the second transceiver can transmit data via the host bus, and the device whose address appears in the data can recognize the signal and process it accordingly. A portable transceiver can constitute a wireless transceiver by using many of the short-range wireless technologies described above. Alternatively, the portable transceiver may be part of a two-way remote control for controlling multiple functions in one device, such as vehicle security systems and multiple multimedia devices (such as CD players, satellite radios, GPS systems, etc.).
【0088】图7示出了图示说明按照本发明一个方面的无线收发器示例的图。该例子中，便携式收发器740使用超宽带(UWB)无线协议。收发器740通过通用串行端口(USB)连接被耦合到膝上型PC 748。图7进一步示出集成在车辆中的MOST总线700用以实现多种多媒体设备的耦合。例如，车辆无线电设备729经车辆天线726接收FM/AM信号，通过模拟数字转换器(ADC)728将模拟信号转换为适当的数字格式，然后经发射器714发射数字信号(在某些实施例中，该发射器714构成网络接口控制器)至MOST总线。发射器714可将地址信息附加到数据从而将其发送到也耦合到总线上的多种设备。例子还包括接收来自总线发射器714的数据的发射器719(发射器719可构成网络接口控制器)，其中一个发射器714耦合到数字模拟转换器(DAC)730，其接收来自发射器719的数据并将其发送到放大器735。然后信号被提供给扬声器732。示出发射器719的其他路径，DAC 730，和扬声器732执行同样的功能，但例外的是在直接连接到DAC 730的扬声器中执行放大。[0088] FIG. 7 shows a diagram illustrating an example of a wireless transceiver in accordance with an aspect of the present invention. In this example, the
【0089】在一个例子中，膝上型PC可经UWB收发器740发送无线信号至安装在车辆内，如车辆仪表板或在车辆后乘坐区内的LCD显示器720。在该情形中，数据寻址到显示器，并经天线742无线发射无线信号746，由UWB收发器779接收并通过数字信号处理器(DSP)777发送到TX/RX单元716(其也可包括网络接口控制器)。于是，信号经总线700发射到与LCD显示器路径关联的发射器714。然后数据通过DSP 718发送用以处理并最终发送到LCD显示器720。[0089] In one example, a laptop PC may send a wireless signal via
【0090】此外，本发明还公开了双向用户接口(UI)724(如操纵杆或仪表板控制机构)，其中车辆乘客可输入要经DSP 722和TX/RX模块716在总线700上发送的命令，该命令将由另一个编址设备接收，或经TX/RX模块716，DSP 777和UWB收发器779发送回膝上型PC，以便随后经无线信号746和天线742无线发射回UWB收发器740。数据随后通过USB连接被传送到膝上型PC 748。[0090] Additionally, the present invention also discloses a bi-directional user interface (UI) 724 (such as a joystick or dashboard control mechanism) in which a vehicle occupant can enter commands to be sent on
【0091】图7进一步示出耦合到总线的卫星无线电设备734，其中有放大器736和车辆扬声器733，该扬声器相应于同一扬声器732。以上述方式，膝上型PC 748的用户可利用UWB收发器742和779控制卫星无线电设备734的特征和功能。[0091] FIG. 7 further shows a
【0092】此外还示出便携式音乐播放器701，其连接到蓝牙发射器702。用适当的协议，如蓝牙，音频或立体声内容可经蓝牙发射器702的天线704被流式化(streamed)并被无线发送到蓝牙接收器710，如无线信号706所示的。蓝牙接收器解调并下转换信号，并发送信号至DSP 712，这里可执行任何合适的信号处理。所得到的信号(如控制信号请求设备无线电的控制装置接管便携式音乐播放器701的播放，跳过，停止，暂停，音量，和其他功能，或流式音频(streamed audio))经总线传输并通过所示的中介电路传输到车辆扬声器732。[0092] Also shown is a
【0093】在某些实施例中，乘客可使用UI 724发送控制信号至便携式音乐播放器701从而使无线电设备729的控制装置能够控制便携式音乐播放器。在这些配置中，对于更先进的便携式音乐播放器，乘客对车辆的UI 724的使用可以启动UI 724和便携式音乐播放器701之间的握手协议，从而使车辆无线电设备的控制装置或UI 724允许乘客经车辆仪表板上的仪表控制装置控制播放。[0093] In some embodiments, the passenger may use the
【0094】图8是本发明示例性便携式无线收发器模块822的视图。收发器模块822可配置为矩形形式，基本如同图5中发射器模块500所示，或可以是其他形状。收发器模块822的尺寸自然取决于其复杂度。在该实施例中，收发器模块822表示多用途且多功能单元，其包含用于示例性便携式设备800和多个内部收发器的多个接口以及多个内部收发器，每个收发器都采用不同无线协议。在该示例中，示例性便携式设备800(如便携式GPS单元，音频播放器，PDA，膝上型PC等)耦合到收发器模块800内的接口模块851。在该示例中，接口模块851经便携式设备800的USB端口802和USB缆线804耦合到便携式设备800，USB缆线804连接接口模块的USB接口1(805)。[0094] FIG. 8 is a diagram of an exemplary portable wireless transceiver module 822 of the present invention. Transceiver module 822 may be configured in a rectangular form, substantially as shown for
【0095】然而，对于其他便携式设备800，接口模块851有利地包括FireWire接口2(806)，合成视频接口(composite video interface)3(808)，分量视频接口(component video interface)4(810)，S-Video接口5(812)，RCA音频接口6(814)，RS-232接口7(816)，和如虚线表示并指向接口N的多个附加接口(818)。[0095] However, for other
【0096】应该指出接口的数目是设计细节且根据多种因素改变，包括所使用的最常见接口，与制造收发器模块822关联的成本，小尺寸和便携性与较大的尺寸和更强的功能性的取舍等。例如可以预见更简单的收发器模块822，例如其仅采用USB端口或RCA连接等。[0096] It should be noted that the number of interfaces is a design detail and varies according to a number of factors, including the most common interfaces used, the cost associated with manufacturing the transceiver module 822, small size and portability versus larger size and stronger Functional trade-offs, etc. For example a simpler transceiver module 822 is foreseen, for example using only a USB port or an RCA connection or the like.
【0097】进一步，图8中接口1到N是收发器模块822的电路模块851中大量电路部件，收发器模块822被设计来处理要么从便携式设备8接收的信号，要么从多个收发器842，840，和838之一接收的信号(下面进一步说明)。接口控制器/中央处理单元824连接到接口存储器模块826，该接口存储器模块826进而连接到接口逻辑830。DSP832，解码器834，和ADC 836进一步连接到接口逻辑。[0097] Further, the interfaces 1 to N in FIG. 8 are a large number of circuit components in the
【0098】接口控制器/CPU 824运行接口存储器836中的程序从而控制哪个接口在给定时间使用。接口逻辑830和DSP 832包含逻辑，该逻辑是路由信号至其适当目的地和处理任何数字信号为适当数字格式用以传输到便携式设备800或收发器842，840，或838和从其接收必须的。解码器834按需要解码将要输入或将要输出的信号用以传输到这些目的地或从其接收。如果来自便携式设备800的信号为模拟格式，ADC836将信号转换到数字域用以进一步处理或传输。注意，虽然所示的多种电路部件824，826，830，832，834，和836是串联的，本领域技术人员可以考虑任何合适的组织和设置这些电路部件的方法，且所述的特定配置不局限于本发明。[0098] The interface controller/
【0099】接口模块连接到收发器模块822的收发器部分893。如邻近接口逻辑电路861和848的箭头所示，数据进出接口模块851。在该示例，收发器部分893包括三个收发器；然而，可以考虑仅使用一个收发器。该示例中每个收发器842，840，和838采用不同无线标准。收发器842采用传统蓝牙协议来无线发射和接收信号。在该图示中，收发器840使用I.E.E.E.802.11无线协议。另一个收发器838可使用分开的、未指定的协议。因此，如果车辆的主机总线采用一种以上类型的收发器，则收发器模块822提供更大的灵活性和功能性与总线上设备以接口连接。例如，如果便携式设备800表示简单MP3播放器，则可选择蓝牙收发器842。可替换地，如果便携式设备800表示DVD播放器或其他高带宽媒体源，则可选择使用I.E.E.E.802.11(n)协议的收发器840。[0099] The interface module is connected to the
【0100】现在参考图8中的蓝牙收发器，其中给出蓝牙控制器865，存储器863，和接口逻辑861。蓝牙控制器865可运行存储器863中例行程序以便执行蓝牙协议，如上所述。接口逻辑861，要么单独地要么结合蓝牙控制器865，与接口逻辑830和接口控制器/CPU 824进行通信，以便判断蓝牙收发器842是否用于发射数据。相反，蓝牙控制器865和蓝牙收发器842的接口逻辑861可用于告知接口模块851的接口控制器824蓝牙收发器842正在接收将要进入的信号。蓝牙收发器842进一步包括采用蓝牙标准的收发器和接收器电路895。以这种方式，数据可以被传递给接口模块851及蓝牙收发器842和从其传出，用于发送数据至连接到车辆的主机总线的设备及从其接收数据。[0100] Referring now to the Bluetooth transceiver in FIG. 8, a
【0101】I.E.E.E.收发器840以基本类似于蓝牙收发器842的方式工作。I.E.E.E.收发器包括采用特定I.E.E.E.802.11标准的发射器和接收器电路842。进而，802.11控制器844运行包含在存储器846中的代码从而执行一种802.11无线协议，且在某些配置中，判断数据传输中是否选择收发器840。接口逻辑848与接口控制器/CPU 824及与接口模块851关联的其他电路互动从而发射数据至接口模块851和收发器840并从其接收数据。[0101] The I.E.E.E.
【0102】天线817发射无线信号至一个或更多耦合到车辆主机总线的收发器和从其接收无线信号。进一步，用户接口模块820为收发器模块822提供命令和控制按钮。在激活和操作收发器模块822时，用户可选择不同操作模式，可启动无线流(wireless streaming)，可对设备加电和关闭，并可执行其他收发器相关的功能。收发器模块822的功率可由，例如电池、车辆点烟器适配器或连接到车辆触点的导线连接来施加。[0102]
【0103】图9A和9B表示使用耦合到总线的多个设备和多个便携式无线发射器、接收器、或收发器的本发明实施例。这些图按照与总线上若干设备之一进行互动的能力示出本发明便携式无线收发器的多功能性和能力。首先参考图9A，其示出耦合到多个设备的车辆主机总线902。FM/AM无线电设备912与放大器/音频控制模块913一起(在某些实施例中，该模块被并入到单个设备，如立体声耳机单元中)使用车辆天线900来接收FM/AM广播。这些广播被ADC 910转换到数字域，并按照总线仲裁器(bus arbitrator)914和用户接口(未示出)决定被发射器904发射。发射器904可包括总线接口控制器，该接口控制器具有例如逻辑和/或执行代码用以转换音频信号为适于传输的格式，而无论采用何种总线标准。发射器904也可将适当的目的地址附加到信号上。[0103] FIGS. 9A and 9B illustrate an embodiment of the invention using multiple devices and multiple portable wireless transmitters, receivers, or transceivers coupled to a bus. These figures illustrate the versatility and capabilities of the portable wireless transceiver of the present invention in terms of its ability to interact with one of several devices on the bus. Referring first to FIG. 9A , a
【0104】然后，音频信号可经发射器904，DAC 915，和放大器908在车辆总线902上发送给多个扬声器911，以便在车辆扬声器911上重现音频。此外，来自FM/AM无线电912的音频内容可经发射器904和调制器/DAC 954发射到蓝牙发射器913，如图所示。然后，例如信号可无线发射到便携式蓝牙使能的收发器模块(未示出)，该收发器模块可连接到音频记录器(未示出)。[0104] The audio signal may then be sent on the
【0105】进一步，图9A示出具有蓝牙收发器功能的蜂窝电话916。收发器可经天线920用蓝牙协议发送和接收无线信号，如双向箭头918所示。进出蜂窝电话916的信号经天线923由蓝牙收发器922发送和接收。蓝牙收发器922通过解调器/ADC模块924和TX/RX单元904耦合到总线，该TX/RX单元904可以是用于格式化信号(如附加地址信息和误差校验编码)的网络接口控制器。然后，例如信号可被路由至多个扬声器911用于在扬声器911上重现语音。注意，模块922，924，和904之间的双向箭头。用户可对耦合到总线的麦克风说话，该语音被换能器转换为音频信号并通过蓝牙收发器923在总线上发送，蓝牙收发器923进而将无线音频信号回发至蜂窝电话916。[0105] Further, FIG. 9A shows a
【0106】图9A进一步包括连接到调制器/DAC 954的蓝牙发射器956，调制器/DAC 954进而连接到发射器904，该发射器904连接到主机总线902。该发射器956可在其天线913上无线发送模拟信号至便携式无线接收器，该便携式无线接收器可从任何连接到主机总线902的设备获取模拟信号。在其他实施例中，调制器/DAC单元954可以不是必须的，且然后蓝牙发射器956可无线发送数字编码的信号至无线目的点。[0106] FIG. 9A further includes a
【0107】如图9A所示，在控制电路936的控制下，卫星电视接收器939通过其天线937接收卫星广播。接收的信号被放大器934放大，被解调器932解调，并进一步被处理器/信号转换器模块930处理，从而为无线发射准备信号。此时，含有由卫星电视接收器939接收的数据的无线信号通过采用802.11(n)标准化的无线发射器经天线928被发射到I.E.E.E.802.11(n)收发器952的天线950。收发器952含有解调接收的信号并恢复隐含的卫星信号(underlying satellite signal)所必须的电路。[0107] As shown in FIG. 9A, under the control of the
【0108】由收发器952接收的信号被放大器948放大，并然后传递给基带/ADC模块946，在这里信号被转换为数字格式。于是，发射器/接收器模块909将数字化信号转换为适于车辆主机总线使用的协议的格式，对其附加地址信息，并经总线将其发射到电视显示器944，该显示器可安装在例如仪表板或车辆顶表面上以便后座上的乘客观看。特别地，信号被发送到与电视显示器路径关联的发射器904，并由放大器模块908放大。接着，信号通过控制电路942从而处理信号和/或转换信号为模拟格式(如果需要)以便在电视显示器944上观看。[0108] Signals received by
【0109】在某些配置中，电视显示器944可含有必要的控制电路单元942，并可以是LCD面板，等离子体显示面板，或阴极射线管显示器。车辆仪表板(未示出)上总线仲裁器914和用户接口可用来启动总线上带宽分配过程以便接收卫星电视信号的发送用以在电视显示器944上显示。[0109] In some configurations, the
【0110】图9A进一步示出车辆集成的数字视频记录器(DVR)936，其经控制电路模块940和TX/RX单元906连接到车辆总线。在一个视图中，位于总线上的卫星信号通过802.11(n)收发器952的路径被寻址到DVR单元936。信号由TX/RX单元906接收，进而被传输给控制电路模块940并传递给DVR 936。在某些实施例中包含DVR 936中的控制电路940将信号处理为与DVR 936的信号传输格式兼容的格式。应该指出DVR 936也可经总线将视频和音频信号回发至电视显示器944，其中可显示预记录的视频。[0110] FIG. 9A further shows a vehicle integrated digital video recorder (DVR) 936 connected to the vehicle bus via
【0111】图9B是图9A的后续部分，其示出同一主机总线902的第二段。耦合到蓝牙收发器990的游戏操纵杆982使用户可无线并互动地控制车辆集成的LCD PC/视频游戏显示器。可替换地，车辆乘客可使用如参考图6中619所示的操纵杆来控制LCD PC/视频游戏显示器上的图像。游戏操纵杆982包括控制器，且在某些情形中包括用于存储车辆中乘客要进行的游戏的存储器。数据在蓝牙收发器990和蓝牙收发器922之间被发送和接收(图9A)，蓝牙收发器922通过解调器/ADC单元924和TX/RX模块909在车辆主机总线902上发射和接收游戏数据。此外，参考图9B，便携式视频游戏控制台972可连接到便携式无线蓝牙收发器模块974，且信号可经天线975在蓝牙收发器923(图9A)和总线间被发送和接收。[0111] FIG. 9B is a continuation of FIG. 9A showing a second segment of the
【0112】于是，再参考图9B，经总线发送的数据被发射到TX/RX单元909(该单元是网络接口控制器)，被放大器908放大，被解码器/解调器单元992解码和/或解调。然后由游戏操纵杆982的移动产生的数据被通过控制电路994，该控制电路994控制正在进行的游戏的互动性。控制电路994也可包括缓存用于存储与游戏关联的信息，还包括存储器帧缓存(memory frame buffer)用于刷新LCD PC/视频游戏显示器996。控制电路单元994也可将经总线无线发送的数据发回至与游戏操纵杆982关联的控制电路，以便提供游戏玩家和显示器996之间的互动。[0112] Thus, referring again to FIG. 9B, data sent via the bus is transmitted to TX/RX unit 909 (which is the network interface controller), amplified by
【0113】图9B进一步示出耦合到无线蓝牙发射器962的MP3播放器960。蓝牙发射器962经天线989发射流式音频，如本公开前面所述。信号由车辆集成的蓝牙收发器922经天线923接收，并被传递到主机总线上从而传输到多个扬声器911。因此扬声器可对MP3播放器上存储的MP3数据进行音频重现。[0113] FIG. 9B further illustrates an
【0114】同样示出膝上型计算机964被连接到802.11兼容的便携式无线收发器966上。收发器966可通过传递无线信号到收发器952(图9A)和从其接收信号来发射和接收数据。以该方式，便携式膝上型PC 964(图9B)可与连接到总线的任意数目的设备进行通信，如DVR936(图9A)，电视显示器944(图9A)，蜂窝电话916(图9A)，LCDPC/视频游戏显示器966(图9B)，等等。[0114] Also shown is a
【0115】进一步，图9B示出寻呼机968，该寻呼机可以是单向或双向寻呼机。寻呼机968耦合到便携式无线蓝牙收发器970。寻呼机968可从标准电话网络接收信号。然后，寻呼机可通过，例如蓝牙收发器923(图9A)经主机总线902发射这些信号，然后蓝牙收发器923可经总线将信号发射至主机总线902上的存储器(未示出)。此外，如果寻呼机968是双向寻呼机，则车辆乘客可通过在仪表板上且连接到总线的用户接口发射信号至寻呼机，或从蜂窝电话916(图9B)发射。[0115] Further, FIG. 9B shows a
【0116】作为另一个示例，蓝牙使能的便携式车辆/娱乐遥控器976构成便携式无线收发器设备，其能够控制主机总线902上不同多媒体设备的特征和功能。例如用蓝牙遥控器976，用户能够调整车辆立体声的音量，启动连接到主机总线902上的GPS设备，调整电视显示器944的设定，在膝上型PC模式和卫星电视之间切换，启动仪表板对无线连接到总线的MP3播放器的控制，等等。蓝牙使能的便携式车辆/娱乐遥控器976有利地使用双向天线978分别发送信号至与其关联的无线接收器和从关联的无线发射器接收信号。[0116] As another example, the Bluetooth-enabled portable vehicle/entertainment
【0117】在图9B中示出用于控制车辆安全功能的便携式遥控器980，如警报功能，窗户和门锁，等等。便携式遥控器980包含无线收发器用以发送信号至连接到主机总线902的多个协议匹配的收发器中的一个和从其接收信号。在一个示例中便携式遥控模块980以蓝牙格式发射信号至蓝牙收发器923，该蓝牙收发器923通过前述的中介电路通过主机总线902发射信号中的数据至TX/RX单元906。数据被发送到数字信号处理器957从而执行转换信号为车辆安全系统961可识别格式所必须的任何处理。进而，车辆安全系统961通过发射经总线寻址到蓝牙收发器923(图9A)的信号来发送应答至遥控器，该信号然后被发送到存在于便携式遥控器/收发器980中的无线蓝牙接收器(图9B)。[0117] A portable
【0118】在一个实施例中，功能性便携式车辆/娱乐遥控器978和便携式遥控器980集成到一起作为一个单个的“命令和控制”遥控器，用于控制连接到主机总线902上的许多设备的特征和功能。[0118] In one embodiment, functional portable vehicle/
【0119】图9(b)进一步公开耦合到蓝牙便携式无线收发器990的便携式麦克风单元984，从而例如使车辆乘客能够以“免提”方式对蜂窝电话916上另一个人说话来发送其声音，而无需使用蜂窝电话916上的麦克风。在该示例中，用户仅在车辆内说话且便携式麦克风984拾取语音。便携式麦克风984含具有将语音转换为电信号的换能器功能，其中信号然后被发送到蓝牙便携式收发器990。含声音数据的信号然后被蜂窝电话916中的蓝牙接收器电路接收，并使用许多蜂窝电话连接协议中的一种(如CDMA)被发射到线路另一端的人员。如上所述，当线路另一端人员在说话时，其语音从蜂窝电话916中的蓝牙发射器电路发射到蓝牙接收器923(图9A)，然后该信号通过总线发送以便最终在扬声器911上重现。[0119] FIG. 9(b) further discloses a
【0120】图9B中进一步公开便携式GPS设备986和无线因特网接收器988，它们都耦合到便携式蓝牙收发器990。GPS设备986可在用户控制下以前述方式发射视频信号至LCD显示器996或电视显示器994。无线因特网接收器988是经配置在长距网络上接收无线因特网访问的任何设备。所接收的数据也可经便携式蓝牙收发器被发送至LCD显示器996，例如用户可使用车辆仪表板上的用户接口(未示出)或便携式遥控器978互动访问车辆内的因特网。[0120] A
【0121】均衡器953和发射器904一起提供可选均衡功能以便控制经总线发射的音频质量。均衡器953的使用是由总线仲裁器914(图9B)控制的。[0121]
【0122】图9B也示出耦合到TX/RX单元906的存储器955。该存储器与总线仲裁器914(图9A)结合使用以便将总线上带宽分配给不同设备，并控制总线上的操作。还可另外提供存储控制器(未示出)来执行存储器955中数据读取和写入。[0122] FIG. 9B also shows
【0123】图9B中进一步示出集成到车辆总线的卫星无线电设备接收器967。卫星无线电设备发射其数据至数字信号处理器957(且当进入信号是模拟信号时，也可采用ADC)。DSP 957执行任何必要的信号采样或转换，然后该信号被发送给放大器963以便在总线上传输。(注意这里没有示出TX单元)。于是，在车辆乘客用的控制下，通过使用适当用户接口或内置在车辆立体声耳机中的卫星无线电控制装置，卫星音频传输可在扬声器111(图9A)上重现。[0123] A
【0124】此外，闪存接口969可集成到车辆中。闪存接口969允许用户将闪存卡插入到仪表板上的插槽中，或车辆内部其他合适区。音频和视频可通过源设备记录在闪存上。例如，当源设备是卫星无线电接收器967时，闪存接口的地址可以被附加到音频数据上，然后数据可被发送到闪存接口以便记录在闪存介质上。作为另一个示例，用户可对麦克风984说话，麦克风984产生可以上述方式在总线上传输的信号，并寻址到闪存以便记录。[0124] Additionally,
【0125】此外，车辆集成的DVD/CD播放器可经编码器/调制器998，放大器908，和发射器904耦合到总线，以便CD音乐以上述方式传输到扬声器911，或传输到扬声器911和电视显示器944或LCD显示器996。[0125] Additionally, a vehicle-integrated DVD/CD player may be coupled to the bus via encoder/
【0126】前面的说明被提供来使得任何本领域技术人员能够实施本说明书所述的各种实施例。这些实施例的各种修改将对本领域技术人员是显然的，且这里定义的一般原理可应用到其他实施例。因此，权利要求不是为了限制这里所示的实施例，而是符合与书面权利要求一致的全部范围，其中单数形式的元素不是指“一个和仅一个”而是指“一个或更多”，除非特别指出。贯穿本公开所述的不同实施例中元素的所有结构和功能等效物明确包括在此以供参考并包括在权利要求范围内，这些结构和功能等效物是本领域技术人员已知的和将为其所知。而且，这里所揭示的都不是为了公开专用的，与权利要求中是否明确重述这些公开内容无关。没有权利要求元素按照35U.S.C.§112，第六条的规定解读，除非该元素用短语“用于……的装置”明确重述，或在方法权利要求的情形中，该元素是用短语“用于……的步骤”重述的。[0126] The foregoing description is provided to enable any person skilled in the art to practice the various embodiments described in this specification. Various modifications to these embodiments will be apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments. Thus, the claims are not intended to be limited to the embodiments shown herein, but are to be accorded the full scope consistent with the written claims where an element in the singular does not mean "one and only one" but rather "one or more" unless Specially point out. All structural and functional equivalents to the elements of the various embodiments described throughout this disclosure are expressly incorporated herein by reference and are to be encompassed by the claims, as known to those skilled in the art and will be known to it. Moreover, nothing disclosed herein is intended to be dedicated to the disclosure regardless of whether such disclosure is expressly recited in the claims. No claim element is to be read under 35 U.S.C. § 112, title VI, unless the element is expressly restated by the phrase "means for" or, in the case of a method claim, the element is stated by the phrase " Steps for..." recapitulated.
Claims (56)
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| US69910005P | 2005-07-14 | 2005-07-14 | |
| US60/699,100 | 2005-07-14 | ||
| US60/803,807 | 2006-06-02 | ||
| US11/457,302 | 2006-07-13 |
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| CN2012103940274ADivisionCN103002383A (en) | 2005-07-14 | 2006-07-14 | Wireless media source for communication with devices on data bus of vehicle |
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| CN101283522Atrue CN101283522A (en) | 2008-10-08 |
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| CNA200680033315XAPendingCN101283522A (en) | 2005-07-14 | 2006-07-14 | Wireless media source for communicating with devices on a vehicle data bus |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102142198A (en)* | 2010-11-29 | 2011-08-03 | 昆明理工大学 | ZigBee technology-based vehicle information interaction and early warning device |
| CN102415206A (en)* | 2009-05-20 | 2012-04-11 | 凯瑟雷恩工厂两合公司 | Antenna device, in particular for mobile radio devices, with several assigned functional units |
| CN106535416A (en)* | 2016-12-23 | 2017-03-22 | 鹿为柱 | Interior and exterior light control system |
| CN107071323A (en)* | 2017-01-10 | 2017-08-18 | 美高卡兰光电科技（北京）有限公司 | Equipment choosing method, interface box and in-vehicle display system |
| CN110072185A (en)* | 2010-11-03 | 2019-07-30 | 安华高科技股份有限公司 | Network management module |
| CN111527482A (en)* | 2017-12-27 | 2020-08-11 | 斯堪尼亚商用车有限公司 | Method and control unit for transmitting information to and/or from a vehicle |
| CN113488062A (en)* | 2020-03-16 | 2021-10-08 | 维沃移动通信有限公司 | Audio transmission method and electronic equipment |
- 2006
- 2006-07-14CNCNA200680033315XApatent/CN101283522A/enactivePending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102415206A (en)* | 2009-05-20 | 2012-04-11 | 凯瑟雷恩工厂两合公司 | Antenna device, in particular for mobile radio devices, with several assigned functional units |
| CN102415206B (en)* | 2009-05-20 | 2014-09-03 | 凯瑟雷恩工厂两合公司 | Antenna arrangement, in particular for mobile radio equipment, assigned a plurality of functional units |
| US8981894B2 (en) | 2009-05-20 | 2015-03-17 | Kathrein-Werke Kg | Antenna device, particularly for a mobile radio system, having a plurality of associated functional units |
| CN110072185A (en)* | 2010-11-03 | 2019-07-30 | 安华高科技股份有限公司 | Network management module |
| CN110072185B (en)* | 2010-11-03 | 2021-06-01 | 安华高科技股份有限公司 | Network management module |
| CN102142198A (en)* | 2010-11-29 | 2011-08-03 | 昆明理工大学 | ZigBee technology-based vehicle information interaction and early warning device |
| CN102142198B (en)* | 2010-11-29 | 2014-10-01 | 昆明理工大学 | Vehicle information interaction and early warning device based on ZigBee technology |
| CN106535416A (en)* | 2016-12-23 | 2017-03-22 | 鹿为柱 | Interior and exterior light control system |
| CN107071323A (en)* | 2017-01-10 | 2017-08-18 | 美高卡兰光电科技（北京）有限公司 | Equipment choosing method, interface box and in-vehicle display system |
| CN111527482A (en)* | 2017-12-27 | 2020-08-11 | 斯堪尼亚商用车有限公司 | Method and control unit for transmitting information to and/or from a vehicle |
| CN113488062A (en)* | 2020-03-16 | 2021-10-08 | 维沃移动通信有限公司 | Audio transmission method and electronic equipment |
| US12262189B2 (en) | 2020-03-16 | 2025-03-25 | Vivo Mobile Communication Co., Ltd. | Audio transmission method and electronic device |
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