CN102187584A - Antenna input adapter device, communication system, portable electronic communication device and radio frequency signal transmission method - Google Patents
Antenna input adapter device, communication system, portable electronic communication device and radio frequency signal transmission methodDownload PDFInfo
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Abstract
Description
Translated fromChinese技术领域technical field
本发明涉及一种天线输入适配器设备，其为(例如)能够成一直线地位于天线与射频调谐器(例如，交通工具中的调频收音机)之间的类型。本发明还涉及一种通信系统，其为(例如)包含无线电数据系统通信单元以将音频信号传送到射频调谐器(例如，交通工具中的调频收音机)的类型。本发明还涉及一种便携式电子通信设备，其为(例如)包含无线电数据系统通信单元以用于将音频信号传送到射频调谐器(例如，交通工具中的调频收音机)的类型。本发明进一步涉及一种传送射频信号的方法，所述方法为(例如)将所述射频信号从便携式电子设备传送到外部RF调谐器(例如，交通工具中的调频收音机)的类型。The present invention relates to an antenna input adapter device, for example of the type capable of being positioned in-line between an antenna and a radio frequency tuner, eg an FM radio in a vehicle. The invention also relates to a communication system, for example of the type comprising a Radio Data System communication unit for communicating audio signals to a radio frequency tuner, eg an FM radio in a vehicle. The invention also relates to a portable electronic communication device, for example of the type comprising a Radio Data System communication unit for communicating audio signals to a radio frequency tuner, eg an FM radio in a vehicle. The invention further relates to a method of transmitting radio frequency signals, for example of the type of transmitting said radio frequency signals from a portable electronic device to an external RF tuner, eg an FM radio in a vehicle.
背景技术Background technique
便携式计算装置(例如包括全球定位系统(GPS)信号接收和处理功能性的便携式导航装置(PND))是众所周知的且广泛用作车载或其它交通工具导航系统。Portable computing devices, such as portable navigation devices (PNDs) that include global positioning system (GPS) signal reception and processing functionality, are well known and widely used as in-vehicle or other vehicle navigation systems.
一般来说，现代PND包含处理器、存储器和存储在所述存储器内的地图数据。处理器与存储器合作以提供执行环境，通常在此环境中建立软件操作系统，且另外，常常提供一个或一个以上额外软件程序以使PND的功能性能够受控制，且提供各种其它功能。In general, modern PNDs contain a processor, memory and map data stored within the memory. The processor cooperates with the memory to provide an execution environment, typically a software operating system is established in this environment, and in addition, often one or more additional software programs are provided to enable the functionality of the PND to be controlled, and to provide various other functions.
通常，这些装置进一步包含允许用户与装置互动且控制所述装置的一个或一个以上输入接口，以及一个或一个以上输出接口，通过所述输出接口，可将信息中继给用户。输出接口的说明性实例包括视觉显示器和用于可听输出的扬声器。输入接口的说明性实例包括用来控制所述装置的开/关操作或其它特征的一个或一个以上物理按钮(如果装置构建于交通工具中，那么所述按钮未必在所述装置自身上，而是可在方向盘上)以及用于检测用户语音的麦克风。在一个特定布置中，可将输出接口显示器配置为触敏显示器(通过触敏覆盖板或其它)以另外提供输入接口，通过所述输入接口，用户可通过触摸来操作所述装置。Typically, these devices further include one or more input interfaces that allow a user to interact with and control the device, and one or more output interfaces through which information can be relayed to the user. Illustrative examples of output interfaces include visual displays and speakers for audible output. An illustrative example of an input interface includes one or more physical buttons (not necessarily on the device itself if the device is built in a vehicle, but rather is available on the steering wheel) and a microphone to detect the user's voice. In one particular arrangement, the output interface display may be configured as a touch sensitive display (via a touch sensitive overlay or otherwise) to additionally provide an input interface through which the user can operate the device by touch.
这种类型的装置也将常包括：一个或一个以上物理连接器接口，通过所述物理连接器接口，可将电力和(任选地)数据信号发射到所述装置并从所述装置接收电力和(任选地)数据信号；以及(任选地)一个或一个以上无线发射器/接收器，以允许蜂窝式电信以及其它信号和数据网络(例如，蓝牙、Wi-Fi、Wi-Max、GSM、UMTS等)上的通信。Devices of this type will also often include one or more physical connector interfaces through which power and (optionally) data signals can be transmitted to and received from the device and (optionally) data signals; and (optionally) one or more wireless transmitters/receivers to allow cellular telecommunications and other signal and data networks (e.g., Bluetooth, Wi-Fi, Wi-Max, communication over GSM, UMTS, etc.).
这种类型的PND还包括GPS天线，通过所述GPS天线，可接收包括位置数据的卫星广播信号，且随后处理所述信号以确定装置的当前位置。This type of PND also includes a GPS antenna through which satellite-broadcast signals including location data can be received and subsequently processed to determine the current location of the device.
PND还可包括产生信号的电子回转仪和加速计，所述信号可经处理以确定当前角加速度和线性加速度，且又结合从GPS信号得出的位置信息来确定装置和因此其中安装了所述装置的交通工具的速度和相对位移。通常，此些特征最常见地提供于交通工具内导航系统中，但也可提供于PND中(如果这样做有利的话)。The PND may also include electronic gyroscopes and accelerometers that generate signals that may be processed to determine the current angular and linear acceleration, which in turn is combined with position information derived from GPS signals to determine the device and therefore the location in which it is installed. Velocity and relative displacement of the vehicle of the device. Typically, such features are most commonly provided in in-vehicle navigation systems, but may also be provided in PNDs if it is advantageous to do so.
此些PND的效用主要表现在其确定第一位置(通常，出发或当前位置)与第二位置(通常，目的地)之间的路线的能力上。这些位置可由装置的用户通过各种各样不同的方法中的任一者来输入，例如通过邮政编码、街道名和门牌号(house number)、先前存储的“众所周知”目的地(例如，著名位置、市政位置(例如，体育场或游泳池)或其它兴趣点)以及最爱目的地或最近去过的目的地。The utility of such PNDs lies primarily in their ability to determine a route between a first location (typically, a departure or current location) and a second location (typically, a destination). These locations may be entered by the user of the device by any of a variety of different methods, such as by zip code, street name and house number, previously stored "well known" destinations (e.g., famous locations, Municipal locations (eg, stadiums or swimming pools or other points of interest) and favorite or recently visited destinations.
通常，PND是由用于根据地图数据来计算出发地址位置与目的地地址位置之间的“最好”或“最佳”路线的软件来启用。“最好”或“最佳”路线是基于预定准则来确定的，且不一定是最快或最短路线。指引司机所沿着的路线的选择可能是非常复杂的，且所选择的路线可考虑现有的、预测的以及动态和/或无线地接收到的交通和道路信息、关于道路速度的历史信息和司机对于确定道路备选项的因素的自身偏好(例如，司机可指定路线不应包括高速公路或收费道路)。Typically, a PND is enabled by software for computing the "best" or "best" route between an origin address location and a destination address location based on map data. The "best" or "best" route is determined based on predetermined criteria and is not necessarily the fastest or shortest route. The selection of a route to direct a driver along can be very complex and the selected route can take into account existing, predicted and dynamically and/or wirelessly received traffic and road information, historical information about road speeds and A driver's own preference for factors that determine road alternatives (eg, a driver may specify that a route should not include highways or toll roads).
所述装置可连续监视道路和交通条件，且因改变的条件而提供或选择改变路线，在此路线上将进行剩下的旅程。基于各种技术(例如，移动电话数据交换、固定相机、GPS车队追踪)的实时交通监视系统正用来识别交通延迟且将信息馈入到通知系统中。The device may continuously monitor road and traffic conditions and, due to changing conditions, offer or choose to alter the route on which to proceed for the remainder of the journey. Real-time traffic monitoring systems based on various technologies (eg mobile phone data exchange, fixed cameras, GPS fleet tracking) are being used to identify traffic delays and feed the information into notification systems.
这种类型的PND通常可安装在交通工具的仪表板或挡风玻璃上，但也可形成为交通工具收音机的机载计算机的一部分或实际上形成为交通工具自身的控制系统的一部分。导航装置还可为手持式系统的一部分，例如PDA(便携式数字助理)、媒体播放器、移动电话等，且在这些情况下，手持式系统的正常功能性通过将软件安装在装置上以执行路线计算和沿着所计算的路线的导航而得以扩展。A PND of this type would typically be mounted on the vehicle's dashboard or windscreen, but could also form part of the on-board computer of the vehicle's radio or indeed part of the vehicle's own control system. The navigation device can also be part of a hand-held system, such as a PDA (Portable Digital Assistant), media player, mobile phone, etc., and in these cases, the normal functionality of the hand-held system is to execute the route by installing software on the device. Calculations and navigation along the calculated routes are extended.
路线规划和导航功能性也可由运行适当软件的桌上型或移动计算资源来提供。举例来说，皇家汽车俱乐部(RAC)在http://www.rac.co.uk提供在线路线规划和导航设施，所述设施允许用户输入起点和目的地，于是服务器(用户的计算资源与之通信)计算路线(其各方面可为用户所指定的)、产生地图，并产生一组详尽的导航指令，用于将用户从选定的起点指引到选定的目的地。所述设施还提供计算出的路线的伪三维渲染和路线预览功能性，所述路线预览功能性模拟用户沿着所述路线行进，且借此向用户提供对所计算的路线的预览。Route planning and navigation functionality may also be provided by desktop or mobile computing resources running appropriate software. For example, the Royal Automobile Club (RAC) provides an online route planning and navigation facility at http://www.rac.co.uk, which allows the user to enter an origin and destination, whereupon the server (the user's computing resources communicate with it) communication) calculates a route (aspects of which may be user-specified), generates a map, and generates a detailed set of navigation instructions for directing the user from a selected starting point to a selected destination. The facility also provides pseudo three-dimensional rendering of the calculated route and route preview functionality that simulates a user traveling along the route and thereby provides the user with a preview of the calculated route.
在PND的情况下，一旦已计算了路线，用户就与导航装置互动以任选地从所提议路线的列表选择所要的计算出的路线。任选地，用户可干预或指导路线选择过程，例如通过指定对于特定旅程，应避免或者必须遵循某些路线、道路、位置或准则。PND的路线计算方面形成一个主要功能，且沿着此路线的导航是另一主要功能。In the case of a PND, once a route has been calculated, the user interacts with the navigation device to optionally select the desired calculated route from a list of proposed routes. Optionally, the user may intervene or guide the routing process, for example by specifying that certain routes, roads, locations or guidelines should be avoided or must be followed for a particular journey. The route calculation aspect of the PND forms one main function and the navigation along this route is another main function.
在沿着计算出的路线导航期间，此PND通常提供视觉和/或可听指令，以指引用户沿着所选择的路线到达所述路线的终点，即所要目的地。PND还通常在导航期间在屏幕上显示地图信息，此信息在屏幕上定期更新，使得所显示的地图信息表示装置的当前位置，且因此表示用户或用户的交通工具的当前位置(如果装置正用于交通工具内导航)。During navigation along a calculated route, this PND typically provides visual and/or audible instructions to guide the user along the selected route to the end of the route, ie the desired destination. PNDs also typically display map information on the screen during navigation, which is periodically updated on the screen so that the displayed map information represents the current location of the device, and thus the user or the user's vehicle (if the device is using navigating in vehicles).
显示在屏幕上的图标通常表示当前装置位置，且居中，其中还显示在当前装置位置附近的当前和周围道路的地图信息以及其它地图特征。另外，任选地，可于在所显示的地图信息上方、下方或一侧的状态条中显示导航信息，导航信息的实例包括从用户需要选取的当前道路到下一偏离的距离、所述偏离的性质，此性质可由表明偏离的特定类型(例如，左转或右转)的进一步图标表示。导航功能还确定可听指令的内容、持续时间和时序，可通过所述指令来沿着路线指引用户。如可了解，例如“100m后左转”的简单指令需要大量的处理和分析。如先前所提到，用户与装置的互动可通过触摸屏、或者另外或替代地通过安装在驾驶杆处的遥控器、通过语音激活或者通过任何其它适宜方法。The icons displayed on the screen generally represent the current device location and are centered, where map information for current and surrounding roads and other map features near the current device location are also displayed. In addition, optionally, navigation information may be displayed in the status bar above, below or on the side of the displayed map information. Examples of navigation information include the distance from the current road that the user needs to select to the next deviation, the deviation , which may be represented by a further icon indicating the particular type of deviation (eg left or right turn). The navigation function also determines the content, duration and timing of the audible instructions by which the user can be guided along the route. As can be appreciated, a simple instruction such as "turn left in 100m" requires extensive processing and analysis. As previously mentioned, user interaction with the device may be through a touch screen, or additionally or alternatively through a remote control mounted at the steering column, through voice activation, or through any other suitable method.
所述装置所提供的更重要的功能是在以下情况下的自动路线重计算：用户在导航期间偏离先前所计算的路线(意外或故意地)；实时交通条件指示替代路线将更有利，且所述装置具有适当功能以自动辨识此些条件，或者如果用户出于任何原因主动地致使装置执行路线重计算。A more important function provided by the device is automatic route recalculation in case: the user deviates from the previously calculated route (accidentally or deliberately) during navigation; real-time traffic conditions indicate that an alternative route will be more favorable, and the The device has appropriate functionality to automatically recognize such conditions, or if the user actively causes the device to perform a route recalculation for any reason.
如上文所提到，还已知允许按用户定义的准则来计算路线；例如，用户可能更喜欢装置计算出风景路线，或者可能希望避开交通堵塞可能发生、预计会发生或当前正发生的任何道路。装置软件将接着计算各种路线，且更青睐沿途包括最高数目个关注点(称为POI)(被标注为(例如)有美景)的路线，或者使用指示特定道路上的正发生的交通条件的已存储信息，按可能的堵塞或因堵塞而导致的延迟的等级来对计算出的路线进行排序。其它基于POI和基于交通信息的路线计算和导航准则也是可能的。As mentioned above, it is also known to allow routes to be calculated according to user-defined criteria; for example, the user may prefer that the device calculates a scenic route, or may wish to avoid any traffic jams that may occur, are expected to occur, or are currently occurring. the way. The device software will then calculate various routes, and favor the route that includes the highest number of points of interest (called POIs) along the way (labeled, for example, as having good views), or use a route that indicates ongoing traffic conditions on a particular road. Stored information ranks the calculated routes by the level of possible congestion or delay due to congestion. Other POI-based and traffic information-based route calculation and navigation criteria are also possible.
尽管路线计算和导航功能对PND的总体效用很重要，但有可能将所述装置纯粹用于信息显示或“自由驾驶”，其中仅显示与当前装置位置相关的地图信息，且其中尚未计算出路线且装置当前不在执行导航。此操作模式常可适用于当用户已知行进所要沿着的路线且不需要导航辅助时。Although route calculation and navigation functions are important to the overall utility of a PND, it is possible to use the device purely for informational display or "free driving" where only map information relevant to the current device location is displayed and where a route has not yet been calculated And the device is not currently performing navigation. This mode of operation is often applicable when the user already knows the route to follow and does not require navigation assistance.
上述类型的装置(例如，由汤姆汤姆国际私人有限公司(TomTom International B.V.)制造并供应的GO 920交通型)提供用于使用户能够从一个位置导航到另一位置的可靠途径。当用户不熟悉去往其正导航到的目的地的路线时，此些装置具有极大效用。Devices of the type described above (for example, the GO 920 Traffic model manufactured and supplied by TomTom International B.V.) provide reliable means for enabling a user to navigate from one location to another. Such devices are of great utility when the user is not familiar with the route to the destination to which they are navigating.
为了促进PND的交通工具内使用，一些PND装备有调频(FM)发射器，例如GO 920型PND。代替于由PND的扬声器再现的经放大的音频信号，FM发射器对音频信号进行调频且在用户可选择的频率上发射所述音频信号。当在交通工具中时，PND的用户将位于交通工具内的FM收音机调谐到用户选择的频率，使得FM收音机接收经调频的音频信号、对所述经调频的音频信号进行解调，且经由耦合到FM收音机的扬声器来再现所述音频信号。当然，FM收音机可为能够进行FM接收且包括压缩光盘(CD)多换机(multi-changer)和其它设施的交通工具内娱乐系统的一部分。To facilitate in-vehicle use of PNDs, some PNDs are equipped with frequency modulation (FM) transmitters, such as the GO 920 model PND. Instead of an amplified audio signal reproduced by the PND's speakers, an FM transmitter frequency modulates the audio signal and transmits it on a user-selectable frequency. While in the vehicle, the user of the PND tunes the FM radio located in the vehicle to a user-selected frequency, causing the FM radio to receive the frequency-modulated audio signal, demodulate the frequency-modulated audio signal, and to the speakers of the FM radio to reproduce the audio signal. Of course, the FM radio may be part of an in-vehicle entertainment system capable of FM reception and including a compact disc (CD) multi-changer and other facilities.
应注意，对于其它类型的便携式装置(例如，所谓的MP3播放器和/或移动电话)，希望经由FM发射而使用交通工具内娱乐系统的扬声器。实际上，已知此些其它便携式装置拥有所谓的短程无线电(SRR)FM发射器以将音频发射到FM接收器。It should be noted that for other types of portable devices (eg so-called MP3 players and/or mobile phones) it is desirable to use the speakers of the in-vehicle entertainment system via FM transmissions. Indeed, such other portable devices are known to possess so-called Short Range Radio (SRR) FM transmitters to transmit audio to FM receivers.
然而，使用SRR发射器进行的音频发射遭受若干缺点。一个缺点是SRR FM发射器的有限发射功率，其有时可导致用户体验到不良音频质量。金属车身和相对于车窗而使用的金属涂层产生的所谓的法拉第笼效应(Faraday cage effect)加剧所述不良音频质量。实际上，所述不良音频质量可部分地将其自身表现为不良的立体声再现。在这方面，RF信号的不良接收场强度导致较低的频道分离且因此导致仅单声道或低质量立体声声音再现。However, audio transmission using SRR transmitters suffers from several disadvantages. One disadvantage is the limited transmit power of the SRR FM transmitter, which can sometimes result in poor audio quality experienced by the user. The poor audio quality is exacerbated by the so-called Faraday cage effect created by the metal bodywork and the metal coating used relative to the windows. In fact, the poor audio quality may partly manifest itself as poor stereo reproduction. In this respect, poor reception field strength of the RF signal leads to lower channel separation and thus to only mono or low quality stereo sound reproduction.
另外，在任一给定时间空闲的以供SRR使用的可用FM频道的数目是有限的且依位置而定。FM频道“景观(landscape)”(即，一FM频谱中正在使用中和可供使用的FM频道)随位置而变化，因为在不同地理位置中将不同频率用于广播。因此，当SRR正从一个地理区域移动到另一地理区域时(例如，当SRR安置在正在城市之间行进的交通工具内时)，相对较少量的可用FM频道中的一些FM频道不再保持可用，且先前在使用中的其它不可用FM频道变得可用。这依据不同地理区域中的FM频谱使用而变。因此，必须随着频率景观变化而有规律地重调谐SRR。Additionally, the number of available FM channels for SRR use that are free at any given time is limited and location dependent. The FM channel "landscape" (ie, the FM channels in use and available in an FM spectrum) varies with location because different frequencies are used for broadcasting in different geographic locations. Therefore, when the SRR is moving from one geographic area to another (for example, when the SRR is placed in a vehicle that is traveling between cities), some of the relatively small number of available FM channels are no longer available. Remains available and other unavailable FM channels that were previously in use become available. This varies according to FM spectrum usage in different geographic regions. Therefore, the SRR must be retuned regularly as the frequency landscape changes.
关于SRR所遇到的另一问题是在一个SRR相对紧密地接近于另一SRR而定位时，例如在活跃地使用相应SRR的两个PND在一组交通灯处在相应交通工具中等待时。在所述情况下，所述SRR可充当彼此的干扰源。在尤其不利的情形下，第一交通工具中的一个PND的SRR所发射的音频导航指令被相邻交通工具中的FM调谐器接收，从而导致所述相邻交通工具的司机遵循相邻PND的导航指令而不是位于在此收到所述指令的交通工具中的PND的导航指令。在这方面，所述干扰在两个交通工具正在等待交通灯时(如上文所提到)可容易发生，错误的指令导致(例如)一个交通工具在交通灯处转弯而不是直行。此类型的问题部分是由于如上文所提到的可用FM频道的数目有限，其导致两个相邻SRR在同一FM频道上进行发射的概率较高。此外，使用同一FM频道的问题仅随着使用SRR的装置的数目增加而增加。Another problem encountered with SRRs is when one SRR is located in relatively close proximity to another SRR, such as when two PNDs actively using the respective SRR are waiting in respective vehicles at a set of traffic lights. In such cases, the SRRs may act as interferers for each other. In a particularly unfavorable situation, an audio navigation instruction transmitted by an SRR of a PND in a first vehicle is received by an FM tuner in an adjacent vehicle, causing the driver of the adjacent vehicle to follow the instructions of the adjacent PND. Navigation instructions other than those of the PND located in the vehicle at which the instructions were received. In this regard, such interference can easily occur when two vehicles are waiting at a traffic light (as mentioned above), and an erroneous instruction causes, for example, one vehicle to turn at a traffic light instead of going straight. This type of problem is partly due to the limited number of available FM channels as mentioned above, which results in a high probability of two neighboring SRRs transmitting on the same FM channel. Furthermore, the problem of using the same FM channel only increases with the number of devices using SRR.
为了减轻所述问题，已知便携式装置使用额外调谐器来搜索可用FM频道。利用许多交通工具内娱乐系统(例如，RDS FM收音机)所拥有的无线电数据系统(RDS)能力。在可用频道上，装备有RDS编码器的便携式装置发射(尤其是)节目识别(PI)码、节目服务(PS)名称(例如，“汤姆汤姆”)和替换频率(AF)列表，所述可用频道和所述AF列表是选自在便携式装置于其中操作的FM频道景观之中检测到的空闲频道。所述便携式装置还通常在同一可用频道上发射音频测试消息。所述PI码、所述PS名称和所述AF列表的形成和发射是根据国际电子技术委员会(IEC)所提出的RDS技术规范。To alleviate the problem, portable devices are known to use an additional tuner to search for available FM channels. Take advantage of the Radio Data System (RDS) capabilities found in many in-vehicle entertainment systems (eg, RDS FM radio). On an available channel, a portable device equipped with an RDS encoder transmits (among other things) a program identification (PI) code, a program service (PS) name (for example, "Tom Tom") and a list of alternate frequencies (AF), which Channels and the AF list are selected from free channels detected among the FM channel landscape in which the portable device operates. The portable device also typically transmits audio test messages on the same available channel. The formation and transmission of the PI code, the PS name and the AF list are based on the RDS technical specification proposed by the International Electrotechnical Commission (IEC).
AF通常由广播装置用来识别其相应的广播网络。所发射的AF列表指示与同发射器当前正接收的无线电节目相同的无线电节目相关联的邻近发射器的频率。交通工具中的FM收音机使用所述AF列表来选择且保持调谐到具有与同一网络相关联的最佳信号强度的发射器。FM收音机存储从所述发射器接收到的所述AF列表，且每当FM收音机调谐到所述网络中的不同发射器时就更新所述AF列表。然而，在SRR发射器的情况下，AF特征可由PND用来实现不同频率的使用，以便避免对主流广播装置和其它SRR发射的干扰。AF is typically used by broadcasters to identify their corresponding broadcast network. The transmitted AF list indicates frequencies of neighboring transmitters associated with the same radio program as the transmitter is currently receiving. The FM radio in the vehicle uses the AF list to select and keep tuned to the transmitter with the best signal strength associated with the same network. The FM radio stores the AF list received from the transmitter and updates the AF list each time the FM radio tunes to a different transmitter in the network. However, in the case of SRR transmitters, the AF feature can be used by the PND to enable the use of different frequencies in order to avoid interference with mainstream broadcasters and other SRR transmissions.
在交通工具中，例如用户设置FM收音机以扫描来自便携式装置且由便携式装置所发射的RDS信息识别的FM发射。当FM收音机已发现便携式装置所进行的发射时，由便携式装置发射的经调频音频信号(通常为音频测试消息)由FM收音机的扬声器再现，且FM收音机的显示器显示PS名称(即，此实例中的“汤姆汤姆”)。In a vehicle, for example, a user sets an FM radio to scan for FM transmissions from a portable device identified by the RDS information transmitted by the portable device. When the FM radio has discovered a transmission by the portable device, a FM audio signal (typically an audio test message) transmitted by the portable device is reproduced by the FM radio's speakers, and the FM radio's display shows the PS name (i.e., "Tom Tom").
虽然结合SRR而使用RDS功能性可减少FM频道使用的重合，但不良音频质量再现的基本问题未必得以解决。实际上，可以证明，相对于SRR发射而使用RDS实际上降低系统性能，因为上文所描述的RDS实施方案通常需要提供不能同时为活动的集成式发射器和接收器。在这点上，当执行频带扫描或信号强度测量时，在接收器为活动时发射器不发射。因此，SRR与FM收音机之间的通信链路被中断，这可导致FM收音机的用户听到强音频“噪声”和收听(例如，音乐和/或导航指令)的破坏。While using RDS functionality in conjunction with SRR may reduce the overlap of FM channel usage, the underlying problem of poor audio quality reproduction is not necessarily solved. In fact, it can be shown that the use of RDS relative to SRR transmission actually degrades system performance, since the RDS implementations described above typically require the provision of an integrated transmitter and receiver that cannot be active simultaneously. In this regard, the transmitter does not transmit while the receiver is active when performing a band scan or signal strength measurement. As a result, the communication link between the SRR and the FM radio is interrupted, which can result in a user of the FM radio hearing strong audio "noise" and disrupting listening (eg, music and/or navigation instructions).
遗憾的是，需要执行有规律的频带扫描，以便使PND或其它便携式装置在无用户介入的情况下在连续变化的FM频道景观中正确操作。此外，缩短频带扫描和执行多个较短频带扫描(所述多个较短频带扫描一起覆盖FM频谱)以避免FM频谱的单个长频带扫描所造成的明显中断事实上适得其反，因为当前SRR芯片组的切换时间太慢，从而导致仅仅停用发射器和激活接收器的动作就是明显的，且这甚至是在任何测量发生之前。Unfortunately, regular frequency band scanning needs to be performed in order for a PND or other portable device to operate properly in the continuously changing FM channel landscape without user intervention. Furthermore, shortening the band scan and performing multiple shorter band scans that together cover the FM spectrum to avoid the apparent interruption of a single long band scan of the FM spectrum is actually counterproductive because current SRR chipsets The switching time is so slow that the mere act of deactivating the transmitter and activating the receiver is noticeable, and this is before any measurements have even taken place.
发明内容Contents of the invention
根据本发明的第一方面，提供一种天线输入适配器装置，其包含：第一射频(RF)输入，其用于耦合到天线；第二RF输入，其用于耦合到能够发射RF信号的便携式电子设备；RF输出，其用于耦合到RF调谐器的输入；以及控制单元；其中所述控制单元经布置以在第一状态下，将所述第一RF输入耦合到所述RF输出，且将所述第二RF输入从所述RF输出去耦，且在第二状态下，将所述第一RF输入从所述RF输出去耦，且将所述第二RF输入耦合到所述RF输出，所述第一状态与第二状态之间的转变是响应于所述控制单元。According to a first aspect of the present invention there is provided an antenna input adapter device comprising: a first radio frequency (RF) input for coupling to an antenna; a second RF input for coupling to a portable an electronic device; an RF output for coupling to an input of an RF tuner; and a control unit; wherein the control unit is arranged to, in a first state, couple the first RF input to the RF output, and decoupling the second RF input from the RF output and, in a second state, decoupling the first RF input from the RF output and coupling the second RF input to the RF output, the transition between the first state and the second state is in response to the control unit.
所述控制单元可经布置以在所述第二状态下，将所述第一RF输入耦合到接地电位。将所述第一RF输入耦合到所述接地电位在使用时可使经由所述天线接收的RF信号衰减。The control unit may be arranged to couple the first RF input to ground potential in the second state. Coupling the first RF input to the ground potential, in use, attenuates RF signals received via the antenna.
所述控制单元可经布置以在使用时接收控制信号，且响应于所述控制信号而执行所述第一状态与第二状态之间的转变。The control unit may be arranged to, in use, receive a control signal, and to perform the transition between the first state and the second state in response to the control signal.
可从便携式电子设备接收所述控制信号。由所述便携式电子设备发射的RF信号可构成所述控制信号。所述控制单元可经布置以检测来自所述便携式电子设备的RF信号。The control signal may be received from a portable electronic device. An RF signal transmitted by the portable electronic device may constitute the control signal. The control unit may be arranged to detect RF signals from the portable electronic device.
在使用时，在所述第一RF输入处接收的与调频(FM)频谱相关联的频率范围内的多个RF信号可在处于所述第二状态下时，由所述RF调谐器以经衰减形式接收。In use, a plurality of RF signals received at the first RF input within a frequency range associated with the frequency modulation (FM) spectrum may, when in the second state, be transmitted by the RF tuner via Received in attenuated form.
所述装置可进一步包含：第一切换单元，其耦合在所述第一RF输入与所述RF输出之间；以及第二切换单元，其可耦合在所述第二RF输入与所述RF输出之间。The apparatus may further comprise: a first switching unit coupled between the first RF input and the RF output; and a second switching unit coupled between the second RF input and the RF output between.
所述装置可进一步包含：天线切换单元，其耦合在所述第一RF输入与所述接地电位之间。The device may further include an antenna switching unit coupled between the first RF input and the ground potential.
所述第二RF输入可经布置以接收用于从所述便携式电子设备接收所述RF信号的有线连接。The second RF input may be arranged to receive a wired connection for receiving the RF signal from the portable electronic device.
根据本发明的第二方面，提供一种通信系统，其包含：天线；如上文关于本发明的第一方面而陈述的天线输入适配器装置，所述天线耦合到所述天线输入适配器装置的第一RF输入；其中所述便携式电子设备包含RDS通信单元，所述RDS通信单元耦合到所述天线输入适配器装置的第二RF输入。According to a second aspect of the present invention there is provided a communication system comprising: an antenna; an antenna input adapter device as stated above in relation to the first aspect of the invention, said antenna being coupled to a first RF input; wherein said portable electronic device includes an RDS communication unit coupled to a second RF input of said antenna input adapter arrangement.
所述RDS通信单元可通过有线连接而耦合到所述第二RF输入。The RDS communication unit may be coupled to the second RF input by a wired connection.
所述便携式电子设备可经布置以存储多个替换频率(AF)频率；所述AF频率可在调频(FM)频谱频率范围上大体上均匀地间隔。The portable electronic device may be arranged to store a plurality of Alternate Frequency (AF) frequencies; the AF frequencies may be substantially evenly spaced over a Frequency Modulation (FM) spectrum frequency range.
所述便携式电子设备可经布置以存储多个替换频率(AF)频率；所述AF频率可在调频(FM)频谱频率范围上大体上任意地间隔。The portable electronic device may be arranged to store a plurality of Alternate Frequency (AF) frequencies; the AF frequencies may be substantially arbitrarily spaced over the Frequency Modulation (FM) spectrum frequency range.
所述RDS通信单元可经布置以执行相对于所述多个AF频率中的每一者的扫描。相对于所述多个AF频率中的一AF频率的每一扫描可包含对在所述AF频率附近的频率范围进行扫频(sweeping)。The RDS communication unit may be arranged to perform a scan relative to each of the plurality of AF frequencies. Each sweep relative to an AF frequency of the plurality of AF frequencies may include sweeping a frequency range around the AF frequency.
所述RDS通信单元可经布置以：识别已在使用的任何AF频率且阻止相对于将来重调谐而使用所述所识别的任何AF频率。The RDS communication unit may be arranged to: identify any AF frequencies already in use and prevent use of said identified AF frequencies with respect to future retuning.
所述FM通信单元可经布置以响应于检测到经调谐频率正由不同于所述便携式电子设备的发射源使用而从所述经调谐频率重调谐到另一频率；所述另一频率可为所述多个AF频率中的一者。The FM communication unit may be arranged to retune from the tuned frequency to another frequency in response to detecting that the tuned frequency is being used by a transmission source different from the portable electronic device; the other frequency may be one of the plurality of AF frequencies.
所述经调谐频率可由无线电广播台使用。The tuned frequency may be used by a radio broadcast station.
所述多个AF频率中的所述一者可为未被阻止由所述RDS通信单元使用的可用AF频率。The one of the plurality of AF frequencies may be an available AF frequency that is not blocked from use by the RDS communication unit.
根据本发明的第三方面，提供一种便携式电子通信设备，其包含：无线电数据系统(RDS)通信单元，其用于将音频信号传送到外部RF调谐器；其中所述RDS通信单元经布置以在使用时产生射频(RF)天线切换信号，用于触发由所述外部RF调谐器经由天线无线接收的RF信号的衰减。According to a third aspect of the present invention there is provided a portable electronic communication device comprising: a Radio Data System (RDS) communication unit for communicating an audio signal to an external RF tuner; wherein the RDS communication unit is arranged to In use a radio frequency (RF) antenna switching signal is generated for triggering attenuation of RF signals received wirelessly via the antenna by the external RF tuner.
所述RDS通信单元可经布置以在触发所述RF信号的衰减后将所述音频信号传送到所述外部RF调谐器。所述RDS通信单元可经布置以经由所述RDS通信单元的用于将连接引线耦合到所述RDS通信单元的有线通信端口来传送所述音频信号。The RDS communication unit may be arranged to communicate the audio signal to the external RF tuner after triggering attenuation of the RF signal. The RDS communication unit may be arranged to communicate the audio signal via a wired communication port of the RDS communication unit for coupling a connection lead to the RDS communication unit.
所述设备可进一步包含数据存储器，所述数据存储器经布置以存储多个替换频率(AF)频率，且起始相对于所述多个AF频率中的每一者的扫描，以便确定所述多个AF频率中的所述每一者的可用性。The apparatus may further comprise a data store arranged to store a plurality of alternative frequency (AF) frequencies and to initiate a scan relative to each of the plurality of AF frequencies in order to determine the plurality of The availability of each of the AF frequencies.
所述多个AF频率可在调频(FM)频谱频率范围上大体上均匀地间隔。The plurality of AF frequencies may be substantially evenly spaced over a frequency modulation (FM) spectral frequency range.
所述多个AF频率可在调频(FM)频谱频率范围上大体上任意地间隔。The plurality of AF frequencies may be spaced substantially arbitrarily across a frequency modulation (FM) spectrum frequency range.
相对于所述多个AF频率中的一AF频率的每一扫描可包含对在所述AF频率附近的频率范围进行扫频，以便确定所述AF频率是否可用于其上的发射。Each scan relative to an AF frequency of the plurality of AF frequencies may include scanning a frequency range around the AF frequency in order to determine whether the AF frequency is available for transmission thereon.
所述RDS通信单元可经布置以选择所述多个AF频率中的AF频率中被确定为可用于其上的发射的一个AF频率。The RDS communication unit may be arranged to select one of the AF frequencies of the plurality of AF frequencies determined to be available for transmission thereon.
所述RDS通信单元可经布置以识别已在使用的AF频率且阻止相对于将来重调谐而使用所述所识别的AF频率。The RDS communication unit may be arranged to identify an AF frequency already in use and prevent use of the identified AF frequency with respect to future retuning.
所述RDS通信单元可包含交通消息频道(TMC)接收器；所述TMC接收器可经布置以执行相对于所述多个AF频率中的所述每一者的扫描，以确定所述多个AF频率中的所述每一者的可用性。The RDS communication unit may comprise a Traffic Message Channel (TMC) receiver; the TMC receiver may be arranged to perform a scan relative to each of the plurality of AF frequencies to determine the plurality of Availability of each of the AF frequencies.
所述TMC接收器可经布置以在TMC广播的空时隙期间(例如，当时隙可不包含TMC内容时)执行所述扫描。The TMC receiver may be arranged to perform the scan during an empty time slot of a TMC broadcast (eg, when a time slot may contain no TMC content).
根据本发明的第四方面，提供一种便携式导航装置，其包含如上文关于本发明的第三方面而陈述的便携式电子通信设备。According to a fourth aspect of the present invention there is provided a portable navigation device comprising a portable electronic communication device as stated above in relation to the third aspect of the present invention.
根据本发明的第五方面，提供一种将射频(RF)信号从便携式电子设备传送到外部RF调谐器的方法，所述方法包含：所述便携式电子设备发布RF天线切换信号；响应于所述RF天线切换信号而使将由所述RF调谐器经由天线无线接收的任何RF信号衰减。According to a fifth aspect of the present invention there is provided a method of communicating a radio frequency (RF) signal from a portable electronic device to an external RF tuner, the method comprising: the portable electronic device issuing an RF antenna switching signal; responding to the The RF antenna switches the signal to attenuate any RF signal to be wirelessly received by the RF tuner via the antenna.
根据本发明的第六方面，提供一种计算机程序元件，其包含用以使计算机执行如上文关于本发明的第五方面而陈述的方法的计算机程序代码构件。According to a sixth aspect of the present invention there is provided a computer program element comprising computer program code means for causing a computer to perform the method as stated above in relation to the fifth aspect of the present invention.
所述计算机程序元件可体现于计算机可读媒体上。The computer program element may be embodied on a computer readable medium.
因此，有可能提供一种天线输入适配器装置、通信系统、便携式电子通信设备和传送射频信号的方法，其使音频信息能够由例如安置于交通工具中的调频(FM)调谐器来再现，所述音频信息由于对经由另外耦合到所述FM调谐器的天线而接收的RF信号的其它外部源的抑制而具有改进的质量。因此可实现一致的立体声再现。实际上，由于便携式电子通信设备的RF信号与经衰减的RF信号之间的信号强度差的差异，所述FM调谐器的自动增益控制(AGC)用来使已由所述天线输入适配器装置衰减的RF信号进一步衰减到更低的电平。另外，重调谐的需要得以减少，且当有必要重调谐时，较多的FM频道是可用的。因此，需要较少的手动重调谐，借此减少司机工作量且因此改进便携式电子通信设备和/或FM调谐器的安全使用。此外，当需要频带扫描时，所述频带扫描较快且因此减少扫描期间的中断时间。因此，用户体验得以改进，因为对收听的潜在令人烦恼的中断的频率和持续时间得以减少，且遗漏(例如)可听导航指令的可能性因此也得以最小化。因此，用户较不可能偏离正遵循的计算出的路线。阻止司机偏离正遵循的路线的能力不仅减少用户的不便，而且提高驾驶时的安全性。Accordingly, it is possible to provide an antenna input adapter device, a communication system, a portable electronic communication device, and a method of transmitting radio frequency signals that enable audio information to be reproduced by, for example, a frequency modulation (FM) tuner installed in a vehicle, the The audio information has improved quality due to suppression of other external sources of RF signals received via an antenna additionally coupled to the FM tuner. Uniform stereo reproduction can thus be achieved. In practice, due to the difference in signal strength difference between the RF signal of the portable electronic communication device and the attenuated RF signal, the automatic gain control (AGC) of the FM tuner is used to de-amp The RF signal is further attenuated to lower levels. Additionally, the need to retune is reduced, and when retuning is necessary, more FM channels are available. Accordingly, less manual retuning is required, thereby reducing driver workload and thus improving safe use of the portable electronic communication device and/or FM tuner. Furthermore, when band scanning is required, it is faster and thus reduces interruption time during scanning. Thus, the user experience is improved because the frequency and duration of potentially annoying interruptions to listening are reduced, and the likelihood of missing, for example, audible navigation instructions is therefore also minimized. Thus, the user is less likely to deviate from the calculated route being followed. The ability to prevent drivers from deviating from the route they are following not only reduces user inconvenience, but also increases safety while driving.
这些实施例的其它优点将在下文中陈述，且这些实施例中的每一者的进一步细节和特征定义于所附的独立权利要求中和以下具体描述内容中的其它地方。Other advantages of these embodiments are set forth hereinafter, and further details and features of each of these embodiments are defined in the appended independent claims and elsewhere in the following detailed description.
附图说明Description of drawings
现在将参看附图仅通过实例来描述本发明的至少一个实施例，其中：At least one embodiment of the invention will now be described, by way of example only, with reference to the accompanying drawings, in which:
图1为可由导航设备使用的全球定位系统(GPS)的示范性部分的示意性说明；Figure 1 is a schematic illustration of an exemplary portion of a Global Positioning System (GPS) usable by a navigation device;
图2为构成本发明实施例的导航设备的电子组件的示意图；2 is a schematic diagram of electronic components constituting a navigation device according to an embodiment of the present invention;
图3为图2的耦合到通信单元的一部分的示意图；FIG. 3 is a schematic diagram of a portion of FIG. 2 coupled to a communication unit;
图4为图2的导航设备所使用的架构堆叠的示意性表示；FIG. 4 is a schematic representation of an architectural stack used by the navigation device of FIG. 2;
图5为图2的导航设备在位于交通工具中时的示意图；Fig. 5 is a schematic diagram of the navigation device of Fig. 2 when it is located in a vehicle;
图6为任选用于图5的交通工具中的对接布置的示意图；Figure 6 is a schematic illustration of a docking arrangement optionally used in the vehicle of Figure 5;
图7为图5的FM调谐器、导航设备和天线输入适配器之间的连接性的示意图；Figure 7 is a schematic diagram of the connectivity between the FM tuner, navigation device and antenna input adapter of Figure 5;
图8为图5和图7的天线输入适配器的更详细示意图；Fig. 8 is a more detailed schematic diagram of the antenna input adapter of Fig. 5 and Fig. 7;
图9为使用图2的导航设备来传送射频信号的方法的流程图；9 is a flowchart of a method of transmitting radio frequency signals using the navigation device of FIG. 2;
图10到图15为来自遵循图9的方法的导航设备的显示器的屏幕截图；10 to 15 are screenshots from a display of a navigation device following the method of FIG. 9;
图16为当使用图5、图7和图8的天线输入适配器时的FM频谱使用情况的曲线图；Figure 16 is a graph of FM spectrum usage when using the antenna input adapters of Figures 5, 7 and 8;
图17为重调谐接收器的方法的流程图；17 is a flowchart of a method of retuning a receiver;
图18为当在FM发射塔附近使用图5、图7和图8的天线输入适配器时的调频(FM)频谱使用情况的曲线图；以及Figure 18 is a graph of frequency modulation (FM) spectrum usage when using the antenna input adapters of Figures 5, 7 and 8 in the vicinity of FM transmitting towers; and
图19为接收器对图17的方法作出的响应的流程图。FIG. 19 is a flowchart of a receiver response to the method of FIG. 17 .
具体实施方式Detailed ways
在以下描述中将始终使用相同参考标号来识别相同部分。The same reference numerals will be used throughout to identify the same parts in the following description.
现在将特定参考PND来描述本发明的一个或一个以上实施例。然而，应记住，本文中的教示不限于PND，而是可普遍适用于任何类型的处理装置，例如(但非本质上)经配置而以可携带和/或移动方式来执行导航软件以便提供路线规划和导航功能性的处理装置。因此，由此可见，在本文中所陈述的实施例的情况下，导航设备既定包括(但不限于)任何类型的路线规划和导航设备，无论所述装置是体现为PND、例如汽车等交通工具，还是实际上体现为便携式计算资源，例如执行例如路线规划和导航软件的便携式个人计算机(PC)、移动电话或个人数字助理(PDA)。实际上，就不具路线规划或导航软件的益处的一些实施例来说，可仅使用移动电话、智能电话、例如MP3播放器等音乐播放器，或其类似物。One or more embodiments of the invention will now be described with specific reference to PNDs. However, it should be kept in mind that the teachings herein are not limited to PNDs, but are generally applicable to any type of processing device, such as (but not essentially) configured to execute navigation software in a portable and/or mobile manner in order to provide Processing device for route planning and navigation functionality. Thus, it follows that, in the context of the embodiments set forth herein, a navigation device is intended to include, but is not limited to, any type of route planning and navigation device, whether embodied as a PND, a vehicle such as a car, etc. , or actually embodied as a portable computing resource such as a portable personal computer (PC), mobile phone or personal digital assistant (PDA) executing eg route planning and navigation software. Indeed, for some embodiments without the benefit of route planning or navigation software, only mobile phones, smart phones, music players such as MP3 players, or the like may be used.
记住以上附带条件，出于多种目的而使用图1的全球定位系统(GPS)和其类似物。一般来说，GPS为基于卫星-无线电的导航系统，其能够为无限数目个用户确定连续的位置、速度、时间和(在一些情况下)方向信息。以前称为NAVSTAR的GPS并入有在极其精确的轨道中绕地球运转的多个卫星。基于这些精确轨道，GPS卫星可将其位置中继到任何数目个接收单元。With the above provisos in mind, the Global Positioning System (GPS) of Figure 1 and its analogs are used for a variety of purposes. In general, GPS is a satellite-radio based navigation system capable of determining continuous position, velocity, time and (in some cases) direction information for an unlimited number of users. GPS, formerly known as NAVSTAR, incorporates multiple satellites orbiting the Earth in extremely precise orbits. Based on these precise orbits, GPS satellites can relay their positions to any number of receiving units.
当经专门装备以接收GPS数据的装置开始扫描用于GPS卫星信号的射频时，实施GPS系统。在从GPS卫星接收到无线电信号后，所述装置即刻经由多种不同常规方法中的一种来确定所述卫星的精确位置。在多数情况下，所述装置将继续扫描以寻找信号，直到其已获得至少三个不同的卫星信号(注意，通常并不(但是可)使用其它三角测量技术仅用两个信号来确定位置)。实施几何三角测量后，接收器利用三个已知的位置来确定其自身相对于卫星的二维位置。可以已知方式进行此确定。另外，获取第四卫星信号允许接收装置通过同一几何计算以已知方式计算其三维位置。位置和速度数据可由无限数目个用户连续地实时更新。The GPS system is implemented when a device specially equipped to receive GPS data begins scanning radio frequencies for GPS satellite signals. Upon receiving a radio signal from a GPS satellite, the device determines the precise location of the satellite via one of a number of different conventional methods. In most cases, the device will continue to scan for signals until it has acquired at least three different satellite signals (note that other triangulation techniques are usually not (but can be) used to determine position with only two signals) . After performing geometric triangulation, the receiver uses the three known positions to determine its own two-dimensional position relative to the satellite. This determination can be made in a known manner. In addition, acquiring the fourth satellite signal allows the receiving device to calculate its three-dimensional position in a known manner by the same geometric calculation. Position and velocity data can be continuously updated in real-time by an unlimited number of users.
如图1中所示，GPS系统100包含绕地球104运转的多个卫星102。GPS接收器106从所述多个卫星102中的若干卫星接收扩频GPS卫星数据信号108。扩频数据信号108是从每一卫星102连续地发射，所发射的扩频数据信号108各自包含数据流，所述数据流包括识别所述数据流来源于的特定卫星102的信息。GPS接收器106通常需要来自至少三个卫星102的扩频数据信号108以便能够计算二维位置。对第四扩频数据信号的接收使GPS接收器106能够使用已知技术来计算三维位置。As shown in FIG. 1 ,
参看图2，应注意，导航设备200的框图不包括导航设备的所有组件，而是仅代表许多实例组件。导航设备200位于外壳(未图示)内。导航设备200包括处理器202，所述处理器202耦合到输入装置204和显示装置(例如，显示屏206)。尽管此处参考单数形式的输入装置204，但所属领域的技术人员应了解，输入装置204表示任何数目个输入装置，包括键盘装置、话音输入装置、触摸面板和/或用以输入信息的任何其它已知输入装置。同样，显示屏206可包括例如液晶显示器(LCD)等任何类型的显示屏。Referring to Figure 2, it should be noted that the block diagram of the
在一个布置中，输入装置204的一个方面(触摸面板)和显示屏206经集成以提供集成式输入和显示装置，所述集成式输入和显示装置包括触摸垫或触摸屏输入310(图6)，以实现经由触摸面板屏幕的信息输入(经由直接输入、菜单选择等)和信息显示两者，使得用户仅需触摸显示屏206的一部分就可选择多个显示备选项中的一者或者激活多个虚拟或“软”按钮中的一者。在这方面，处理器202支持结合触摸屏而操作的图形用户接口(GUI)。In one arrangement, one aspect of the input device 204 (the touch panel) and the display screen 206 are integrated to provide an integrated input and display device including a touch pad or touch screen input 310 (FIG. 6), To achieve both information input (via direct input, menu selection, etc.) One of virtual or "soft" buttons. In this regard,
在导航设备200中，处理器202经由连接210而操作性地连接到输入装置204且能够经由连接210而接收来自输入装置204的输入信息，且经由相应的输出连接212而操作性地连接到显示屏206和输出装置208中的至少一者以向其输出信息。输出装置208为(例如)可听输出装置(例如，包括扬声器)。由于输出装置208可为导航设备200的用户产生可听信息，因此应同样理解，输入装置204也可包括麦克风和软件以用于接收输入话音命令。此外，导航设备200还可包括任何额外输入装置204和/或任何额外输出装置，例如音频输入/输出装置。处理器202经由连接216而操作性地耦合到存储器资源214，且经进一步适配以经由连接220从输入/输出(I/O)端口218接收信息/将信息发送到I/O端口218，其中I/O端口218可连接到在导航设备200外部的I/O装置222。存储器资源214包含：(例如)易失性存储器，例如随机存取存储器(RAM)；和非易失性存储器，例如数字存储器，例如快闪存储器。外部I/O装置222可包括(但不限于)外部收听装置，例如耳机。到I/O装置222的连接可另外为到任何其它外部装置(例如，汽车立体声单元)的有线或无线连接，例如用于免提操作和/或用于话音激活式操作、用于连接到耳机或头戴式耳机。In the
图2进一步说明处理器202与天线/接收器224之间经由连接226的操作性连接，其中天线/接收器224可为(例如)GPS天线/接收器。应理解，为了说明而示意性地组合由参考标号224表示的天线与接收器，但天线和接收器可为分开定位的组件，且天线可为(例如)GPS贴片天线或螺旋天线。2 further illustrates an operative connection between
为了支持本文中所描述的功能性，处理器202还耦合到调频(FM)端口228。To support the functionality described herein,
当然，所属领域的技术人员将理解，图2中所展示的电子组件是以常规方式由一个或一个以上电源(未图示)供电。如所属领域的技术人员将理解，预期图2中所展示的组件的不同配置。举例来说，图2中所展示的组件可经由有线和/或无线连接等而相互通信。因此，本文中所描述的导航设备200可为便携式或手持式导航设备200。Of course, those skilled in the art will appreciate that the electronic components shown in Figure 2 are powered in a conventional manner by one or more power sources (not shown). As will be understood by those skilled in the art, different configurations of the components shown in Figure 2 are contemplated. For example, the components shown in FIG. 2 may communicate with each other via wired and/or wireless connections and the like. Accordingly, the
转而参看图3，处理器202能够经由FM端口228与无线电数据系统(RDS)通信单元254通信。RDS通信单元254包含RDS编码器256和用以根据RDS技术规范(例如，如针对RDS的IEC/CENELEC EN 62106规范中所描述)发射音频数据和RDS数据两者的通信电路。由于RDS通信单元是此项技术中已知的，因此为了描述的清晰和简明起见，本文中将不提供对RDS通信单元254的结构的更详细描述。然而，应了解，RDS通信单元254包括FM发射器(未图示)、FM接收器(未图示)和耦合到RDS输出端口258的交通消息频道(TMC)接收器(未图示)，所述RDS输出端口258支持到所述RDS通信单元254的有线连接。Referring back to FIG. 3 , the
转而参看图4，存储器资源214存储自加载器程序(boot loader program)(未图示)，所述自加载器程序由处理器202执行以从存储器资源214加载操作系统262以供功能硬件组件260执行，所述操作系统262提供应用软件264可在其中运作的环境。操作系统262用来控制功能硬件组件260，且驻存在应用软件264与功能硬件组件260之间。应用软件264提供操作环境，所述操作环境包括支持导航设备200的核心功能(例如，地图检视、路线规划、导航功能和与此相关联的任何其它功能)的GUI。4, memory resource 214 stores a boot loader program (not shown) that is executed by
参看图5，在以下实例中，将在交通工具中使用导航设备200，例如具有交通工具内娱乐系统(例如，音频娱乐系统，例如其中具有FM接收器(未图示)和显示器303的FM收音机302或调谐器)的汽车300。FM收音机302耦合到扬声器系统304。然而，所属领域的技术人员应了解，可在其它环境中部署导航设备200，在所述环境中存在耦合到一个或一个以上扬声器的具有RDS能力的FM接收器，来源于另一装置或设备的音频信号的音频输出需要使用扬声器。在此实例中，导航设备200耦合到天线输入适配器装置306，所述天线输入适配器306成一直线地耦合在FM调谐器302与天线(未图示)之间。为了促进其使用，可将图2的便携式或手持式导航设备200以已知方式连接或“对接”到汽车300或任何其它适合的交通工具(例如，自行车、摩托车、汽车或船)。接着可为了便携式或手持式导航用途，从对接位置移除导航设备200。在这方面(图6)，导航设备200可为包括集成式输入和显示装置310以及图2的其它组件(包括(但不限于)内部GPS接收器224、微处理器202、电源(未图示)、存储器资源214等)的单元。5, in the following example, a
导航设备200可位于臂312上，可使用吸盘314将臂312自身紧固到交通工具仪表板/窗/等。此臂312为导航设备200可对接到的对接台的一个实例。可通过将导航设备200搭扣连接到臂312来将导航设备200对接或以其它方式连接到对接台的臂312。导航设备200可接着在臂312上旋转。为了释放导航设备200与对接台之间的连接，可(例如)按压导航设备200上的按钮(未图示)。用于将导航设备200耦合到对接台和将导航设备200从对接台去耦的其它同样适合的布置是所属领域的技术人员众所周知的。The
转而参看图7，天线输入适配器306的第一输入端口316通过天线电缆320耦合到天线318。天线输入适配器306的第二输入端口322系通过有线连接(例如，第一天线贴片引线324)耦合到导航设备200的RDS输出端口258。天线输入适配器306的输出端口326通过第二天线贴片引线330耦合到FM调谐器302的天线输入端口328。Referring back to FIG. 7 ,
参看图8，天线输入适配器306的第一输入端口316经由第一切换单元332耦合到天线输入适配器306的输出端口326。第一输入端口316还经由天线切换单元336耦合到接地电位334。天线输入适配器306的输出端口326也经由第二切换单元338耦合到天线输入适配器306的第二输入端口322。天线输入适配器306还包含控制单元340，所述控制单元340耦合到天线输入适配器306的第二输入端口322。在此实例中，控制单元340还耦合到第一切换单元332、天线切换单元336和第二切换单元338，以便能够选择性地操作第一切换单元332、天线切换单元336和第二切换单元338。Referring to FIG. 8 , the
在此实例中，第一切换单元332、天线切换单元336和第二切换单元338为任何适合的切换装置，例如RF衰减器、场效晶体管(FET)或任何其它兼容固态切换装置。实际上，用于第一切换单元332、天线切换单元336和第二切换单元338的所述类型的装置可为不同类型的切换装置的组合(如果形成所述组合对给定应用来说是有利的)。In this example, the first switching unit 332, the antenna switching unit 336, and the second switching unit 338 are any suitable switching devices, such as RF attenuators, field effect transistors (FETs), or any other compatible solid state switching devices. In practice, the types of devices used for the first switching unit 332, the antenna switching unit 336, and the second switching unit 338 may be a combination of different types of switching devices if forming such a combination is advantageous for a given application. of).
尽管在此实例中将天线输入适配器306描述为外部装置，但所属领域的技术人员应了解，天线输入适配器306可作为内部模块而提供于(例如)FM调谐器302或导航设备200中。在此些实施例中，应理解，尽管如此，天线输入适配器模块仍用来适配FM调谐器的天线输入端口，其将以其它方式直接耦合到天线318，而无以自动方式将天线318从FM调谐器302去耦的能力。Although
在操作中(图9)，为描述的简明起见，假定已将天线输入适配器306安置在汽车300中，且以上文已描述的方式将天线输入适配器306的第一输入端口316耦合到天线318，且将输出端口326耦合到FM调谐器302。此外，在默认第一状态下，控制单元340设置第一切换单元332以准许天线输入适配器306的第一输入端口316到输出端口326的电耦合。在第一状态下，控制单元340还设置天线切换单元336以将第一输入端口316且因此将天线318从接地电位334去耦，且设置第二切换单元338以将第二输入端口322且因此将导航设备200从天线输入适配器306的输出端口326去耦。In operation ( FIG. 9 ), it is assumed for simplicity of description that the
在此实例中，导航设备200的用户希望使用导航设备200的交通避让功能性从家驾驶到办公室。在进入汽车300之后，用户使用第一天线贴片引线324将导航设备200的RDS输出端口258耦合到天线输入适配器306的第二输入端口322，以完成上文已关于图7而描述的配置。用户接着给导航设备200(图10)加电(步骤400)，并触摸触摸屏显示器310以进入由GUI支持的菜单结构(步骤402)。用户接着选择(步骤404)“改变偏好”菜单选项350(图11)，且接着通过所述菜单结构(步骤406)以到达“扬声器偏好”菜单选项352(图12)。在选择扬声器偏好菜单选项352后，GUI即刻相对于导航设备200所提供的可听指令而显示第一扬声器偏好选项屏幕354(图13)。在此实例中，用户希望经由汽车300中的扬声器304来播放所述可听指令，且因此选择(步骤408)“调频到你的汽车收音机”选项356。用户接着按压“完成”软按钮358以指示已作出最终选择，且GUI接着相对于由或经由导航设备200提供的音乐而显示第二扬声器偏好选项屏幕360(图14)。在此实例中，有可能将电子音乐播放器耦合到导航设备200，以便准许经由导航设备200(经由导航设备200的内部扬声器，或另一外部输出装置)来播放音乐。为简单起见，此实例假定无音乐播放器或其它音频信号源耦合到导航设备200。然而，所属领域的技术人员将了解，本文中关于经由FM收音机302的扬声器304播放导航指令而描述的原理适用于关于其它音频信号源而使用扬声器304的选项。由于以上假定，用户不修改相对于音乐而呈现于第二扬声器偏好选项屏幕360上的任何选项，且仅按压另一“完成”软键362。In this example, a user of the
此后，RDS通信单元254可产生(步骤409)触发或控制信号，所述信号经由第一天线贴片引线324传送到天线输入适配器306，且由控制单元340借助控制单元340到第二输入端口322的耦合来检测。然而，在此实例中，用以传送所述音频信息的RF信号构成所述控制信号。响应于所述触发信号的接收，控制单元340的电路通过设置第一切换单元332以将天线输入适配器306的第一输入端口316从输出端口326去耦来使天线输入适配器306转变到第二状态。在第二状态下，控制单元340还设置天线切换单元336以将第一输入端口316且因此将天线318耦合到接地电位334，且设置第二切换单元338以将天线输入适配器306的第二输入端口322替代第一输入端口316而耦合到输出端口326。Thereafter, the
与RDS通信单元254合作的处理器202接着扫描(步骤410)分配用于FM无线电广播的频带或范围，且识别未被其它广播装置占用且因此可充当FM接收器或收音机302可调谐到的频率的多个可用频率和多个相应的替换频率(AF)。处理器202接着从所述多个AF选择(步骤412)若干AF，选定的若干AF由存储器资源214存储(但可使用RDS通信单元254的存储器资源)。在这方面，已知相对于FM接收器所作的典型存储器分配是用于存储25个AF，这与可使用RDS技术规范中所提出的0A型消息而发射的关于PI码的替换频率的数目一致。任选的是，为了避免填满接收器(例如，FM收音机302)的存储器，处理器202将所选AF的数目的上限设为AF的预定最大数量，所述预定最大数量比接收器的典型存储器容量的容量小(例如)条目裕量。举例来说，所选AF的数目可小于25，例如约20。一旦已从所识别的多个AF选择若干AF，导航设备200的RDS通信单元254就调谐到上文所选的经调谐频率且发射(步骤414)第一RDS数据(例如，0A型群组)，其包含选定AF的列表。当然，RDS通信单元254发射其它RDS数据，例如与所述经调谐频率相关联的节目识别码和节目服务名称(“汤姆汤姆”)。在此实例中，可根据RDS论坛对于所属领域的技术人员已知的便携式电子设备所提议的技术来产生节目识别码。此外，通常经由一系列消息或群组来传送AF列表。The
GUI接着转到指令屏幕(图15)，其指令用户将FM收音机302(在本实例中，其位于汽车300中)调谐到由节目服务名称“汤姆汤姆”识别的频道。用户因此设置FM收音机302以扫描寻找若干个台(步骤416)，FM收音机302的RDS能力使检测到的每一台的名称能够由FM收音机302的显示器303呈现。The GUI then goes to an instruction screen (FIG. 15) that instructs the user to tune the FM radio 302 (in this example, located in the car 300) to the channel identified by the programming service name "Tom Tom". The user thus sets the
因此，所述扫描程序最终导致FM收音机302被调谐到汤姆汤姆“频道”，与汤姆汤姆频道相关联的频率为经调谐频率。还相对于所述经调谐频率接收第一RDS数据(例如，包含选定AF的列表的0A型群组)。作为调谐过程的一部分，FM收音机302将在所分配的相应空间中接收到的选定AF存储在其为正接收的频道而保留的存储器(未图示)中。Thus, the scanning procedure ultimately results in the
一旦FM收音机302已获取“汤姆汤姆”广播，用户就按压另一“完成”软键364(图15)，且GUI通过返回(步骤418)到地图显示屏幕(图10)来作出响应。Once the
一旦FM收音机302已被调谐到汤姆汤姆频道，例如一旦导航设备200的用户已设置路线或提供指令以避开交通，扬声器304就再现导航设备200所发射的音频信号(例如，导航指令)。在这方面，经由由第一天线贴片引线324和第二天线贴片引线330以及天线输入适配器306格式化的有线连接将与所述音频信息相关联的RF信号从导航设备200传送到FM收音机312。The
虽然在以上实例中，RDS通信单元254已搜索寻找所述多个可用频率(例如，所有可用频率)，但所属领域的技术人员应了解，在通过导航设备200进行的扫描过程期间，仅可识别所需数目个AF以用于传送，而未识别所有可用频率或多于所需频率的频率。举例来说，处理器202可仅选择在扫描时遇到的第一AF，且一旦已找到足够的AF就停止以遵守所实施的上限。Although in the example above, the
转而参看图16，可看出，天线318到接地电位334的耦合用来抑制由FM收音机302经由天线318而接收的RF信号或使其衰减。实际上，可通过仅将天线318从天线输入适配器306的输出端口326且因此从FM收音机302去耦而无需将其耦合到接地电位334来实现衰减。然而，当天线318耦合到接地电位334时，衰减的程度得以改进。如从图16可看出，使通常在具有相关联的强信号强度的FM频道上接收到的RF信号衰减，借此提供频道“净空”(即，从导航设备200和FM收音机302的接收观点看，FM频道“没有”RF信号)，从而提供大量可用频道以供在将音频信息从导航设备200传送到FM收音机302的过程中使用。在这方面，通常使具强信号强度的RF信号衰减到某一电平，借此所述RF信号不再为显著干扰源。此外，由于导航设备200与FM收音机302之间的有线连接，与汤姆汤姆频道372相关联的接收信号强度较高，且汤姆汤姆频道372的接收信号强度与经由天线318接收的其它FM频道的接收信号强度之间存在实质裕量。实际上，在FM收音机302使用自动增益控制(AGC)以便使与汤姆汤姆频道372相关联的RF信号衰减的情况下，也实现进一步衰减，借此也使通常为良好的、但并非所需的上文所提到的所接收RF信号更进一步衰减。当然，在AGC为选择性的情况下，可实现更好的衰减。16, it can be seen that the coupling of
转而参看图17，导航设备200(经由RDS通信单元254)发射(步骤420)RDS数据，所述RDS数据包括如上文所提到的若干AF，所述AF存储在FM收音机302的所分配的存储器空间中。当导航设备200正在行进时，FM频谱景观变化，因为来源于一些FM信号发射器的信号随着汽车300朝这些FM信号发射器行进而变得较占优势，且来源于一些其它FM信号发射器的信号随着汽车300远离这些FM信号发射器行进而变得较不占优势。因此，在FM调谐器处相对于一些FM频道而测得的接收信号强度增加，且相对于其它FM频道的接收信号强度减小。因此，随着导航设备200和FM收音机302接近在FM收音机302的经调谐频率上进行广播的给定FM信号发射器，干扰将增加且接收信号强度下降。RDS通信单元254(经由其FM接收器)监视所述干扰，且一旦干扰的水平达到被认为是对通过FM收音机302对导航设备200所发射的音频信息的再现的质量有害的水平，就认为有必要将RDS通信单元254重调谐到另一频率。在这方面，从先前选择的若干AF选择(步骤424)所述另一频率。通常，所述另一频率为AF列表(其为若干AF)中的第一AF。一旦FM发射器已选择所述另一频率，RDS通信单元254就接着继续进行而执行对AF的搜索(步骤426)，继而执行包含新AF的RDS数据的产生(步骤428)。将找到的新AF存储在存储器214中以代替先前选择的若干AF。RDS通信单元254接着重调谐(步骤430)到另一频率且发射(步骤432)第二RDS数据，例如识别新AF的0A型群组。因此，随着汽车300行进且因此导航设备200和FM收音机302的位置变化而考虑改变的FM频谱景观。17, the navigation device 200 (via the RDS communication unit 254) transmits (step 420) RDS data including a number of AFs as mentioned above, which are stored in the assigned
在FM收音机302处(图18)，其接收器监视(步骤450)接收信号强度。当与经调谐频率相关联的接收信号强度足够强时，FM收音机302的接收器根据RDS技术规范而继续在经调谐频率上进行接收。然而，当接收信号强度降到阈值以下时，FM收音机302存取其存储器以识别来自存储在FM收音机302的存储器中的若干AF的第一AF，且重调谐(步骤452)到所选的第一AF。FM收音机302接着监视(步骤454)与从FM收音机302的存储器检索到的第一AF相关联的接收信号强度。如果与第一AF相关联的信号强度不足，那么FM收音机302再次存取其存储器以识别来自存储在FM收音机302的存储器中的若干AF的第二AF，且重调谐(步骤456)到所选的第二AF。重复以上程序(步骤454和456)，直到已找到另一具有与之相关联的足够信号强度的AF为止。At the FM radio 302 (FIG. 18), its receiver monitors (step 450) the received signal strength. When the received signal strength associated with the tuned frequency is sufficiently strong, the receiver of
一旦FM接收器302已调谐到具有与之相关联的足够信号强度和正确的节目识别码的AF，FM收音机302就继续接收如上文所描述的由导航设备200发射的第二RDS数据。明确地说，FM收音机302接收(步骤458)识别新AF的0A型群组，且记录(步骤460)所述新AF以代替当前存储在FM收音机302的存储器中的若干AF。因此，先前存储在FM收音机302的存储器中的若干AF被在另一频率上从导航设备200接收的所述新AF代替，且因此FM收音机302的存储器得以清理。Once the
一旦用户已使用完导航设备200，且导航设备200掉电或第一天线贴片引线324从导航设备200和/或天线输入配机器306断开，控制单元340就操作第一切换装置332、天线切换装置336和第三切换装置338，使得天线输入适配器306转变回到上文所描述的第一状态。实际上，尽管在此实例中，控制单元340作出的响应依靠控制单元340监视第一天线贴片引线324而为自动的，但导航设备200可经布置以向天线输入适配器306特别发布控制信号以实施回到第一状态的转变。在这方面，在此实施例中，控制单元340使用在第二输入端口332处所接收的RF信号的存在或不存在作为所述控制信号。当然，所属领域的技术人员应了解，可酌情在导航设备200与天线输入适配器306之间提供单独的专用控制线，以提供所述控制信号从而影响控制单元340的控制逻辑。Once the user has finished using the
在以上实施例中，导航设备200的RDS通信单元254扫描FM频谱以寻找AF。以上实施例假定：由于天线输入配机器306所提供的衰减，对重调谐的需要很少发生，因为经由天线318而接收的FM信号受到抑制。然而，在一些例子中(图18)，汽车300且因此导航设备200和FM收音机302行进靠近强发射源或靠近强发射源而路过。在这方面，如果FM收音机302足够靠近(例如)广播无线电频道的发射器，那么不出所料，即使在正执行对其它FM频道376的所接收RF信号的衰减时，FM频道374的接收信号强度仍高得足以被FM收音机302接收(其通常具有足够的频道分离)。通常，发射器发射3个与8个之间的FM频道，且因此，如果这些所发射FM频道中的任一者与经调谐频率或选定AF中的任一者重合，那么导航设备200和FM收音机302需要重调谐到可用频率。在一些地理区域中，可能有必要比在其它地理区域中更频繁地触发重调谐，且因此，将存在对更频繁地重调谐的增加的需要。在所述情况下，较频繁的重调谐和对不顾(如上文最初所说明的)改变的FM频谱景观而扫描寻找AF的需要可破坏汽车300中的用户或其它收听者的收听乐趣。因此，为了减少扫描FM频谱频率范围所必需的时间量，可任选地采用以下技术。In the above embodiments, the
在另一实施例中(图18)，代替扫描整个FM频谱，RDS通信单元254可选择所述FM频谱中的若干候选替换频率点。在此实例中，所述若干候选替换频率点(例如，25个频率点)在所述FM频谱上均匀地间隔。然而，所述若干候选替换频率点可酌情在FM替换频谱上任意地分布。修改寻找AF的上述扫描，使得RDS通信单元254仅(例如)通过对在若干候选替换频率中的每一者附近且包括所述每一者的相应频率范围而不是整个FM频谱频率范围进行扫频，来相对于若干候选替换频率进行扫描。被扫频的频率范围的大小对应于(例如)FM“频道”的带宽。在这方面，RDS通信单元254识别来自若干候选替换频率的可用(例如，未受干扰)的频率集合，且RDS通信单元254准许所识别的所述频率集合被用作AF且因而被传送，而阻止相对于将来重调谐而将来自若干替换频率的其余不可用频率用作AF。In another embodiment (FIG. 18), instead of scanning the entire FM spectrum, the
因此，代替必须扫描整个FM频谱频率范围，RDS通信单元254仅须扫描FM频谱频率范围的一部分，且因此，扫描过程花费较少时间。如果需要，RDS通信单元254可使用多个FM接收器以便扫描不同候选替换频率集合。当结合以上经改进的扫描技术而使用天线输入适配器306的衰减能力时，若干候选替换频率之中存在足够多的频率以避免对附近发射器所广播的FM频道的干扰和来自足够接近于FM收音机302的装备有SRR的其它装置的任何可能的干扰。Therefore, instead of having to scan the entire FM spectrum frequency range, the
在另一实施例中，代替使用如上文所描述的FM接收器，可使用RDS通信单元254的TMC接收器执行相对于若干候选替换频率的扫描。通常，TMC广播提供足够多的不含TMC数据的小时隙，以准许(例如)分别在空时隙期间执行每一扫描而不会在所述候选替换频率的测量期间丢失TMC消息的接收。空时隙可为不包含TMC内容的时隙。In another embodiment, instead of using the FM receiver as described above, the TMC receiver of the
应理解，在以上实例中，天线输入适配器306、FM收音机302和导航设备200构成通信系统。It will be appreciated that in the above example the
虽然已主要在RDS的情况下描述了以上实例，但所属领域的技术人员将了解，可与在北美洲实施的不同技术规范(例如，在美国，称为无线电广播数据系统(RBDS))相关地使用以上实施例。因此，为避免疑问，本文中对RDS的参考应被解释为也包含RBDS。Although the above examples have been described primarily in the context of RDS, those skilled in the art will appreciate that a different specification may be implemented in North America (e.g., in the United States, known as the Radio Broadcast Data System (RBDS)). Using the above example. Therefore, for the avoidance of doubt, references herein to RDS should be construed as also encompassing RBDS.
应了解，虽然已在此之前描述了本发明的各种方面和实施例，但本发明的范围不限于本文中所陈述的特定布置，而是扩展到涵盖属于所附权利要求的范围内的所有布置和其修改和更改。It should be appreciated that while various aspects and embodiments of the invention have been described hereinbefore, the scope of the invention is not limited to the particular arrangements set forth herein, but extends to all arrangements falling within the scope of the appended claims. Arrangements and modifications and changes thereto.
举例来说，应注意，尽管本文中所描述的RDS通信单元254在导航设备200内部，但可提供FM端口228以用于将外部RDS通信单元耦合到导航设备200或任何其它适合的便携式电子设备。For example, it should be noted that although the
作为另一实例，虽然前面的详细描述中所描述的实施例参考GPS，但应注意，导航设备可利用任一种位置感测技术作为对GPS的替代(或实际上，除了GPS以外)。举例来说，导航设备可利用其它全球导航卫星系统(GNSS)，例如所提出的欧洲伽利略(Galileo)系统(在可用时)。同样地，导航设备不限于基于卫星，而是可易于使用基于地面的信标或其它任一种使装置能够确定其地理位置的系统(例如，长程导航(LORAN)-C系统)来起作用。As another example, while the embodiments described in the foregoing detailed description refer to GPS, it should be noted that a navigation device may utilize any one of the position sensing technologies as an alternative to (or indeed, in addition to) GPS. For example, the navigation device may utilize other Global Navigation Satellite Systems (GNSS), such as the proposed European Galileo system (where available). Likewise, navigation equipment is not limited to satellite-based, but could readily function using ground-based beacons or any other system that enables a device to determine its geographic location, such as the Long Range Navigation (LORAN)-C system.
作为另外的实例，应了解，尽管在导航设备的情况下描述了以上实施例，但本文中所描述的技术不仅适用于导航设备，而且适用于任何其它电子通信设备，就此来说，希望在FM频道上发射RDS或RDBS数据以供FM接收器(例如，移动电话或媒体播放器，例如音乐播放器，明确地说(但非排它性地)MP3播放器或其附件)接收。As a further example, it should be understood that although the above embodiments are described in the context of a navigation device, the techniques described herein are applicable not only to navigation devices, but to any other electronic communication device, and in this regard, it is hoped that the FM RDS or RDBS data is transmitted on a channel for reception by an FM receiver (eg, a mobile phone or a media player, such as a music player, specifically (but not exclusively) an MP3 player or its accessories).
本发明的替代实施例可实施为与计算机系统一起使用的计算机程序产品，所述计算机程序产品为(例如)一系列计算机指令，所述计算机指令存储在例如软磁盘、CD-ROM、ROM或固定磁盘等有形数据记录媒体上，或体现于计算机数据信号中，所述信号经由有形媒体或无线媒体(例如，微波或红外线)而发射。所述系列的计算机指令可构成上文所描述的功能性的全部或部分，且也可存储在任何存储器装置(易失性或非易失性的)中，例如存储在半导体存储器装置、磁性存储器装置、光学存储器装置或其它存储器装置中。Alternative embodiments of the invention may be implemented as a computer program product for use with a computer system, the computer program product being, for example, a series of computer instructions stored on, for example, a floppy disk, a CD-ROM, a ROM or a fixed disk or embodied in a computer data signal transmitted via a tangible medium or a wireless medium (eg, microwave or infrared). The series of computer instructions may constitute all or part of the functionality described above, and may also be stored in any memory device (volatile or non-volatile), such as a semiconductor memory device, magnetic memory device, optical memory device, or other memory device.
所属领域的技术人员还将很理解，虽然优选实施例通过软件来实施某些功能性，但所述功能性可同样地仅在硬件中(例如，通过一个或一个以上ASIC(专用集成电路))实施或实际上由硬件与软件的混合物来实施。因而，不应将本发明的范围解释为仅限于实施于软件中。Those skilled in the art will also appreciate that while the preferred embodiment implements some functionality in software, that functionality could equally well be in hardware only (e.g., through one or more ASICs (Application Specific Integrated Circuits)). implemented or indeed by a mixture of hardware and software. Accordingly, the scope of the present invention should not be construed as limited to being implemented in software.
最后，还应注意到，虽然所附权利要求提出本文中所描述的特征的特定组合，但本发明的范围不限于以下所主张的特定组合，实情为，本发明的范围延伸到包含本文中所揭示的特征或实施例的任何组合，不论此时是否已在所附权利要求中具体列举所述特定组合。Finally, it should also be noted that although the appended claims set forth specific combinations of features described herein, the scope of the invention is not limited to the specific combinations claimed below, but rather extends to include all features described herein. Any combination of disclosed features or embodiments, whether or not that particular combination is then specifically recited in the appended claims.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108259075A (en)* | 2016-12-28 | 2018-07-06 | 北京维特创世科技发展有限公司 | A kind of relay apparatus |
| CN110162923A (en)* | 2019-06-03 | 2019-08-23 | 北京卫星环境工程研究所 | System and method for digital prototype construction of flexible cable technology for spacecraft assembly |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103487814B (en)* | 2013-09-12 | 2015-09-09 | 武汉中元通信股份有限公司 | Psamminida based on field intensity orientation/satnav identifies other method for searching and device |
| JP6500524B2 (en)* | 2015-03-17 | 2019-04-17 | 日本電気株式会社 | Wireless communication terminal device and control method |
| CN114221721B (en)* | 2021-12-10 | 2025-01-17 | 北京东方计量测试研究所 | Indoor half-space radio frequency spectrum monitoring system and method |
| CN116320154A (en)* | 2023-03-17 | 2023-06-23 | 环鸿电子（昆山）有限公司 | State switching system and state switching method of mobile device |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3751601A (en)* | 1970-01-05 | 1973-08-07 | H Wally | Tape playback for playing through a radio receiver |
| US6272328B1 (en)* | 1999-05-12 | 2001-08-07 | Xm Satellite Radio Inc. | System for providing audio signals from an auxiliary audio source to a radio receiver via a DC power line |
| US7512380B2 (en)* | 2001-08-17 | 2009-03-31 | Intel Corporation | Apparatus and methods for finding and using available transmission frequencies |
| EP1370053B1 (en)* | 2002-06-05 | 2006-08-02 | Alcatel | A hands free mobile phone communication system as well as a mobile terminal and an audio system therefore |
| US20060223467A1 (en)* | 2005-04-05 | 2006-10-05 | Nokia Corporation | Method and device for low-power FM transmission of audio data to RDS (Radio Data System) capable FM radio receiver |
| US8184430B2 (en)* | 2005-06-29 | 2012-05-22 | Harman International Industries, Incorporated | Vehicle media system |
| CN101253693A (en)* | 2005-09-02 | 2008-08-27 | 皇家飞利浦电子股份有限公司 | Radio broadcasting device |
| US20070142010A1 (en)* | 2005-12-19 | 2007-06-21 | Christopher Gary L | Adaptive modulator and method of operating same |
| US20070298710A1 (en)* | 2006-06-23 | 2007-12-27 | Sams Trevor J | Audio interfaces |
| US7558527B2 (en)* | 2006-08-25 | 2009-07-07 | Delphi Technologies, Inc. | Radio receiver system and method of injecting audio content |
| US7792498B2 (en)* | 2006-12-28 | 2010-09-07 | Texas Instruments Incorporated | Apparatus for and method of automatic radio link establishment |
| US7869779B2 (en)* | 2007-05-30 | 2011-01-11 | Broadcom Corporation | Method and system for processing channels in a FM communication system |
| DE102007033736A1 (en)* | 2007-05-30 | 2008-12-11 | Navigon Ag | Method for operating a mobile audio device in a vehicle |
| WO2008155598A1 (en)* | 2007-06-20 | 2008-12-24 | Nokia Corporation | Method and device for transmission of media data to broadcast receivers |
- 2009
- 2009-01-14CNCN2009801407667Apatent/CN102187584A/enactivePending
- 2009-01-14WOPCT/EP2009/050366patent/WO2010081539A1/enactiveApplication Filing
- 2009-07-10WOPCT/EP2009/058837patent/WO2010081564A1/enactiveApplication Filing
- 2009-07-28TWTW098125421Apatent/TW201027037A/enunknown
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108259075A (en)* | 2016-12-28 | 2018-07-06 | 北京维特创世科技发展有限公司 | A kind of relay apparatus |
| CN110162923A (en)* | 2019-06-03 | 2019-08-23 | 北京卫星环境工程研究所 | System and method for digital prototype construction of flexible cable technology for spacecraft assembly |
| CN110162923B (en)* | 2019-06-03 | 2020-04-03 | 北京卫星环境工程研究所 | Flexible cable process digital prototype construction system and method for spacecraft assembly |
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| WO2010081539A1 (en) | 2010-07-22 |
| WO2010081564A1 (en) | 2010-07-22 |
| TW201027037A (en) | 2010-07-16 |
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