CN101022279A - Frequency modulation/amplitude modulation transmitting mobile terminal, method and system for receiving frequency modulation transmission - Google Patents

Abstract

Translated fromChinese

本发明公开了一种调频/调幅发射的移动终端、方法及调频发射接收的系统，该调频发射的移动终端包括基带芯片、调频发射模块和天线，其中，基带芯片，用于控制调频发射模块的状态，为调频发射模块设定发射频点，将音频发送给调频发射模块；调频发射模块，用于在基带芯片的控制下，将接收到的音频信号通过调制转换为射频信号，在设定的发射频点上通过天线发送。该调频发射的方法包括：移动终端播放音频时，通过设置的调频发射功能将音频转换为射频信号，使用设定的频点通过天线发送。本发明提供的移动终端、方法及系统可以使移动终端通过调频/调幅发射进行音频广播。

The invention discloses a mobile terminal for frequency modulation/amplitude modulation transmission, a method and a system for transmitting and receiving frequency modulation. The mobile terminal for frequency modulation transmission includes a baseband chip, a frequency modulation transmission module and an antenna, wherein the baseband chip is used to control the frequency modulation transmission module State, set the transmitting frequency point for the FM transmitting module, and send the audio to the FM transmitting module; the FM transmitting module is used to convert the received audio signal into a radio frequency signal through modulation under the control of the baseband chip, It is transmitted through the antenna on the transmitting frequency point. The method for FM transmission includes: when the mobile terminal plays audio, convert the audio into a radio frequency signal through a set FM transmission function, and use the set frequency point to transmit through the antenna. The mobile terminal, method and system provided by the present invention can enable the mobile terminal to perform audio broadcasting through frequency modulation/amplitude modulation transmission.

Description

Translated fromChinese

调频/调幅发射的移动终端、方法及调频发射接收的系统Mobile terminal and method for frequency modulation/amplitude modulation transmission and system for frequency modulation transmission and reception

技术领域technical field

本发明涉及移动通信系统中移动终端的应用领域，特别涉及一种调频/调幅发射的移动终端、方法及调频发射接收的系统。The present invention relates to the application field of mobile terminals in mobile communication systems, in particular to a mobile terminal for frequency modulation/amplitude modulation transmission, a method and a system for frequency modulation transmission and reception.

背景技术Background technique

目前，移动终端成为了个人必不可少的移动通信工具。移动终端除了基本的通信功能外，还是一个多媒体终端，如可以播放高质量的音乐等。但是，为了保证移动终端的较小体积，在移动终端中内置的扬声器品质无法将要播放的音频完美地再现，特别对高质量的音乐来说，无法将高质量的音乐完美地再现。因此，在使用移动终端播放音乐时，常常采用耳机，无法与他人共享。尤其是在用户开车时，带耳机接听电话或欣赏音乐极不方便，在许多国家和地区也是被禁止的。Currently, mobile terminals have become an indispensable mobile communication tool for individuals. In addition to the basic communication functions, the mobile terminal is also a multimedia terminal, such as playing high-quality music. However, in order to ensure a small volume of the mobile terminal, the built-in speaker quality of the mobile terminal cannot perfectly reproduce the audio to be played, especially for high-quality music, it cannot perfectly reproduce the high-quality music. Therefore, when using a mobile terminal to play music, earphones are often used, which cannot be shared with others. Especially when the user is driving, it is extremely inconvenient to wear earphones to answer calls or enjoy music, and it is also prohibited in many countries and regions.

为了使移动终端可以在无需耳机的情况下播放音频，可以将移动终端的耳机插孔作为音频输出端子，通过电线与音响设备，如车载音响设备的音频输入端子相连接后，将移动终端中存储的音频文件通过音响设备进行播放。In order to enable the mobile terminal to play audio without earphones, the earphone jack of the mobile terminal can be used as an audio output terminal, and after being connected to the audio equipment, such as the audio input terminal of a car audio equipment, through a wire, the data stored in the mobile terminal The audio files of are played on audio equipment.

但是这种方法存在着缺点，首先，移动终端没有专门的音频输出端子，所以需要将具有音频输入功能的耳机插孔作为音频输出端子，由于耳机插孔不仅有音频输出，还通常与外接麦克风输入端共用，如果将耳机插孔作为音频输出端子，则无法再通过外接麦克风与对方进行通话；其次，将移动终端的耳机插孔与现有的音响设备通过电线相连接实现音频的播放，不仅使用时不方便，而且必须音响设备具备音频输入端子(有一些车载音响设备没有音频输入端子)。But this method has disadvantages. First, the mobile terminal does not have a dedicated audio output terminal, so the earphone jack with audio input function needs to be used as the audio output terminal. If the earphone jack is used as an audio output terminal, it is no longer possible to communicate with the other party through an external microphone; secondly, the earphone jack of the mobile terminal is connected to the existing audio equipment through wires to realize audio playback. It is inconvenient, and the audio equipment must have an audio input terminal (some car audio equipment does not have an audio input terminal).

发明内容Contents of the invention

本发明实施例提供了一种调频发射的移动终端，该移动终端能够通过调频发射进行音频广播。An embodiment of the present invention provides a mobile terminal for FM transmission, which can perform audio broadcasting through FM transmission.

本发明实施例还提供了一种调频发射的方法，该方法能够使移动终端通过调频发射进行音频广播。The embodiment of the present invention also provides a method for FM transmission, which enables the mobile terminal to perform audio broadcasting through FM transmission.

本发明实施例还提供了一种调频发射接收的系统，该系统能够使移动终端通过调频发射进行音频广播以及接收音频广播。The embodiment of the present invention also provides a system for FM transmission and reception, which enables a mobile terminal to perform audio broadcast and receive audio broadcast through FM transmission.

本发明实施例还提供了一种调幅发射的移动终端及方法，能够使移动终端通过调幅发射进行音频广播。The embodiment of the present invention also provides a mobile terminal and method for AM transmission, enabling the mobile terminal to perform audio broadcasting through AM transmission.

本发明实施例提供的方案包括：The scheme that the embodiment of the present invention provides includes:

一种实现调频发射的移动终端，其特征在于，该移动终端包括基带芯片、调频发射模块和天线，其中，A mobile terminal for realizing frequency modulation transmission, characterized in that the mobile terminal includes a baseband chip, a frequency modulation transmission module and an antenna, wherein,

基带芯片，用于控制调频发射模块的状态，为调频发射模块设定发射频点，将音频发送给调频发射模块；The baseband chip is used to control the state of the FM transmitting module, set the transmitting frequency point for the FM transmitting module, and send the audio to the FM transmitting module;

调频发射模块，用于在基带芯片的控制下，将接收到的音频转换为射频信号，在设定的发射频点上通过天线发送。The FM transmitting module is used to convert the received audio into a radio frequency signal under the control of the baseband chip, and transmit it through the antenna at the set transmitting frequency point.

一种实现调频发射的方法，该方法包括：移动终端播放音频时，通过设置的调频发射功能将音频转换为射频信号，使用设定的频点通过天线发送。A method for implementing frequency modulation transmission, the method comprising: when a mobile terminal plays audio, convert the audio into a radio frequency signal through a set frequency modulation transmission function, and use the set frequency point to transmit through an antenna.

一种调频发射接收的系统，该系统包括：移动终端，用于通过设置的调频发射功能将音频转换为射频信号，使用设定的频点通过天线发送给调频接收器；调频接收器，用于在设定的频点上接收移动终端通过天线发送的射频信号并播放。A system for FM transmission and reception, the system includes: a mobile terminal, used to convert audio into a radio frequency signal through the set FM transmission function, and use the set frequency point to send it to the FM receiver through the antenna; the FM receiver is used to Receive and play the radio frequency signal sent by the mobile terminal through the antenna at the set frequency point.

一种调幅发射的移动终端，该移动终端包括基带芯片、调幅发射模块和天线，其中，A mobile terminal for amplitude modulation transmission, the mobile terminal includes a baseband chip, an amplitude modulation transmission module and an antenna, wherein,

基带芯片，用于控制调幅发射模块的状态，为调幅发射模块设定发射幅度，将音频发送给调幅发射模块；The baseband chip is used to control the state of the AM transmitter module, set the transmission range for the AM transmitter module, and send the audio to the AM transmitter module;

调幅发射模块，用于在基带芯片的控制下，将接收到的音频转换为幅度发射信号，在设定的发射幅度上通过天线发送。The AM transmission module is used to convert the received audio into an amplitude transmission signal under the control of the baseband chip, and transmit it through the antenna at the set transmission amplitude.

一种调幅发射的方法，该方法包括：A method for AM transmission, the method comprising:

移动终端播放音频时，通过设置的调幅发射功能将音频转换为幅度发射信号，使用设定幅度通过天线发送。When the mobile terminal plays audio, it converts the audio into an amplitude transmission signal through the set AM transmission function, and sends it through the antenna with the set amplitude.

由上述方案可以看出，本发明实施例提供的调频发射的移动终端、方法及调频发射接收的系统在移动终端中设置了调频发射模块，从而使当前与移动终端的调频发射模块在一个频点的具备调频接收功能的接收器可以接收到移动终端发射的音频信号并播放出来。因此，本发明实施例提供的调频发射的移动终端及方法可以通过调频发射进行音频广播。另外，本发明实施例提供的调幅发射的移动终端及方法在移动终端中设置了调幅发射模块，从而使当前与移动终端的调幅发射模块在同一幅度的具备调幅接收功能的接收器，可以接收到移动终端发射的音频信号并播放出来。因此，本发明实施例提供的调幅发射的移动终端及方法可以通过调幅发射进行音频广播。It can be seen from the above scheme that the mobile terminal for FM transmission, the method and the system for FM transmission and reception provided by the embodiments of the present invention set a FM transmission module in the mobile terminal, so that the current FM transmission module and the mobile terminal are at the same frequency point The receiver with FM receiving function can receive the audio signal transmitted by the mobile terminal and play it out. Therefore, the mobile terminal and method for FM transmission provided by the embodiments of the present invention can perform audio broadcasting through FM transmission. In addition, in the mobile terminal and method for AM transmission provided by the embodiments of the present invention, an AM transmission module is set in the mobile terminal, so that the current receiver with the AM reception function at the same amplitude as the AM transmission module of the mobile terminal can receive The audio signal transmitted by the mobile terminal is played out. Therefore, the mobile terminal and method for AM transmission provided by the embodiments of the present invention can perform audio broadcasting through AM transmission.

由于本发明实施例一方面不需要将耳机插孔作为音频输出端子，所以移动终端在播放音频的同时，还可以利用移动终端内置的麦克风与其他终端进行通信；另一方面不需要电线连接音响设备且一般音响设备都具备调频接收功能，如车载音响设备，所以易于实现且使用方便。Since the embodiment of the present invention does not need to use the earphone jack as an audio output terminal on the one hand, the mobile terminal can also use the built-in microphone of the mobile terminal to communicate with other terminals while playing audio; on the other hand, no wires are needed to connect the audio equipment And general audio equipment all has FM receiving function, as car audio equipment, so it is easy to implement and easy to use.

附图说明Description of drawings

图1为本发明实施例实现调频发射的移动终端示意图；FIG. 1 is a schematic diagram of a mobile terminal implementing FM transmission according to an embodiment of the present invention;

图2为本发明实施例实现调频发射的方法流程图；FIG. 2 is a flow chart of a method for realizing FM transmission according to an embodiment of the present invention;

图3为本发明实施例实现调频发射接收的系统示意图；FIG. 3 is a schematic diagram of a system for realizing FM transmission and reception according to an embodiment of the present invention;

图4为本发明实施例实现调幅发射的移动终端示意图；FIG. 4 is a schematic diagram of a mobile terminal implementing AM transmission according to an embodiment of the present invention;

图5为本发明实施例实现调幅发射的方法流程图。FIG. 5 is a flowchart of a method for implementing AM transmission according to an embodiment of the present invention.

具体实施方式Detailed ways

本发明实施例提供的移动终端及方法在移动终端中设置了调频发射模块，从而使当前与移动终端的调频发射模块在一个频点的具备调频接收功能的接收器可以接收到移动终端发射的音频信号并播放出来。这样，本发明实施例提供的移动终端及方法一方面不需要将耳机插孔作为音频输出端子，所以移动终端在播放音频的同时，还可以利用移动终端内置的麦克风与其他终端进行通信；另一方面不需要电线连接音响设备且一般音响设备都具备调频接收功能，如车载音响设备，所以易于实现且使用方便。In the mobile terminal and method provided by the embodiments of the present invention, an FM transmitting module is set in the mobile terminal, so that the receiver with FM receiving function at the same frequency as the FM transmitting module of the mobile terminal can receive the audio transmitted by the mobile terminal signal and play it out. In this way, the mobile terminal and the method provided by the embodiments of the present invention do not need to use the earphone jack as an audio output terminal on the one hand, so the mobile terminal can also use the built-in microphone of the mobile terminal to communicate with other terminals while playing audio; on the other hand On the one hand, there is no need for wires to connect to audio equipment, and general audio equipment has an FM receiving function, such as car audio equipment, so it is easy to implement and easy to use.

图1为本发明实施例实现调频发射的移动终端示意图，如图所示，该移动终端至少包括显示模块、按键、基带芯片、耳机插孔、调频发射模块和天线，其中，显示模块、按键、调频发射模块和耳机插孔都分别与基带芯片相连接，用于接受基带芯片的控制执行相应操作。其中，在基带芯片的控制下耳机插孔的操作与现有技术相同，即不仅可以作为音频输出端子，插上耳机后输出音频；还可以与外接麦克风输入端共用，接收麦克风输入的音频。Figure 1 is a schematic diagram of a mobile terminal implementing FM transmission according to an embodiment of the present invention. As shown in the figure, the mobile terminal at least includes a display module, buttons, a baseband chip, an earphone jack, a FM transmitting module, and an antenna, wherein the display module, buttons, Both the FM transmitting module and the earphone jack are respectively connected to the baseband chip, and are used to accept the control of the baseband chip to perform corresponding operations. Among them, under the control of the baseband chip, the operation of the headphone jack is the same as that of the prior art, that is, it can not only be used as an audio output terminal to output audio after the earphone is plugged in; it can also be shared with an external microphone input terminal to receive audio input from the microphone.

当移动终端要播放音频时，可以通过基带芯片控制调频发射模块，将基带芯片中的音频，该音频可以为话音或音乐，在设定的发射频点由调频发射模块转换为射频信号，通过天线发送出去。When the mobile terminal wants to play audio, it can control the FM transmitting module through the baseband chip, and the audio in the baseband chip, which can be voice or music, is converted into a radio frequency signal by the FM transmitting module at the set transmitting frequency point, and transmitted through the antenna send it out.

在本发明实施例中，移动终端的按键可以用于通过基带芯片对调频发射模块的状态进行设置，如开启/关闭调频发射功能，为调频发射模块设定发射频点等。为了方便操作，也可以增加专门的按键，进行调频发射模块的快捷设置。In the embodiment of the present invention, the keys of the mobile terminal can be used to set the state of the FM transmitting module through the baseband chip, such as turning on/off the FM transmitting function, setting the transmitting frequency point for the FM transmitting module, and the like. For the convenience of operation, special buttons can also be added for quick setting of the FM transmitter module.

在本发明实施例中，移动终端的显示可以用于通过基带芯片获取调频发射模块的状态信息，并进行显示，如显示调频发射模块开启/关闭，调频发射模块可以选择的频点或已经设定的频点等。In the embodiment of the present invention, the display of the mobile terminal can be used to obtain the state information of the FM transmitting module through the baseband chip, and display it, such as displaying the on/off of the FM transmitting module, the frequency point that the FM transmitting module can select or has been set frequency etc.

在本发明实施例中，为了避免发射的射频信号与所在区域的信号相干扰，使调频发射模块具有两个或两个以上的频点，在发射射频信号时，可以在设定的发射频点进行发射(设定的频点可以由按键通过基带芯片设置)。In the embodiment of the present invention, in order to prevent the transmitted radio frequency signal from interfering with the signal in the area, the FM transmitting module has two or more frequency points. Transmit (the set frequency point can be set by the key through the baseband chip).

在本发明实施例中的移动终端中，还可以具有多媒体音频芯片和音频开关，分别与基带芯片相连接，多媒体音频芯片和音频开关之间也互相连接，用于在基带芯片的控制下选择基带芯片输出的音频信号或者多媒体音频芯片输出的音频信号送给调频发射模块，在设定的频点下通过天线发送出去。In the mobile terminal in the embodiment of the present invention, there may also be a multimedia audio chip and an audio switch, which are respectively connected to the baseband chip, and the multimedia audio chip and the audio switch are also connected to each other for selecting the baseband under the control of the baseband chip. The audio signal output by the chip or the audio signal output by the multimedia audio chip is sent to the FM transmitter module, and sent out through the antenna at the set frequency point.

其中，多媒体音频芯片可以为和弦电路模块。Wherein, the multimedia audio chip may be a polyphonic circuit module.

在本发明实施例中，如果移动终端不需要进行音频播放，也可以通过基带芯片控制音频开关，将音频开关关闭。In the embodiment of the present invention, if the mobile terminal does not need to play audio, the audio switch may also be controlled by the baseband chip to turn off the audio switch.

当用户要接收移动终端播放的音频时，可以通过移动终端外部的调频接收器，如车载音响，在移动终端设定的频点上接收移动终端通过天线发射的音频信号，并播放出来。When the user wants to receive the audio played by the mobile terminal, the FM receiver outside the mobile terminal, such as a car stereo, can receive the audio signal transmitted by the mobile terminal through the antenna at the frequency set by the mobile terminal, and play it out.

另外，当移动终端处于调频发射功能的开启状态时，不仅可以正常通过耳麦(采用耳机插孔)与对方进行通话，而且移动终端也可以在基带芯片的控制下，通过调频发射模块将对方话音转换为射频信号通过天线发送出去，使用该移动终端的用户可以通过移动终端外部的调频接收器在移动终端设定的频点上接收到对方通话，同时，可以使用移动终端自带的麦克风与对方进行通话。In addition, when the mobile terminal is in the open state of the FM transmission function, not only can it normally communicate with the other party through the headset (using the headphone jack), but the mobile terminal can also convert the other party's voice through the FM transmission module under the control of the baseband chip. The radio frequency signal is sent out through the antenna, and the user using the mobile terminal can receive the call from the other party at the frequency set by the mobile terminal through the FM receiver outside the mobile terminal, and at the same time, use the microphone that comes with the mobile terminal to communicate with the other party call.

图2为本发明实施例实现调频发射的方法流程图，其具体步骤为：Fig. 2 is the flow chart of the method for realizing FM transmission according to the embodiment of the present invention, and its specific steps are:

步骤201、在移动终端设置调频发射功能。Step 201, setting the FM transmission function on the mobile terminal.

在本步骤中，可以在移动终端设置调频发射模块即可实现设置调频发射的功能。In this step, the function of setting the frequency modulation transmission can be realized by setting the frequency modulation transmission module on the mobile terminal.

步骤202、当移动终端播放音频时，通过设置的调频发射功能将音频转换为射频信号，使用设定的频点通过天线发送出去。Step 202, when the mobile terminal plays audio, convert the audio into a radio frequency signal through the set FM transmission function, and send it out through the antenna using the set frequency point.

步骤203、通过移动终端外部的调频接收器在设定的频点上接收移动终端发送的射频信号并播放。Step 203: Receive and play the radio frequency signal sent by the mobile terminal at a set frequency point through the FM receiver outside the mobile terminal.

图3为本发明实施例实现调频发射接收的系统示意图，如图所示，该系统包括移动终端和调频接收器，其中，FIG. 3 is a schematic diagram of a system for realizing FM transmission and reception according to an embodiment of the present invention. As shown in the figure, the system includes a mobile terminal and a FM receiver, wherein,

移动终端，用于通过设置的调频发射功能将音频转换为射频信号，使用设定的频点通过天线发送给调频接收器；The mobile terminal is used to convert the audio into a radio frequency signal through the set FM transmission function, and use the set frequency point to send it to the FM receiver through the antenna;

调频接收器，用于在设定的频点上接收移动终端通过天线发送的射频信号并播放。The FM receiver is used to receive and play the radio frequency signal sent by the mobile terminal through the antenna at the set frequency point.

图3中所示的移动终端结构如图1所示。The structure of the mobile terminal shown in FIG. 3 is shown in FIG. 1 .

在本发明实施例中，还提供一种实现调幅发射的移动终端，如图4所示：在该移动终端中，采用调幅发射模块替换了调频发射模块，其余的模块与图1所示移动终端中的模块相同。In the embodiment of the present invention, a mobile terminal that realizes AM transmission is also provided, as shown in Figure 4: in this mobile terminal, the AM transmission module is used to replace the FM transmission module, and the remaining modules are the same as those of the mobile terminal shown in Figure 1 The modules in are the same.

当移动终端要播放音频时，可以通过基带芯片控制调幅发射模块，将基带芯片中的音频，在设定幅度由调幅发射模块转换为幅度发射信号，通过天线发送出去。When the mobile terminal wants to play audio, it can control the AM transmitting module through the baseband chip, and convert the audio in the baseband chip into an amplitude transmitting signal at a set amplitude by the AM transmitting module, and send it out through the antenna.

在本发明实施例中，移动终端的按键可以用于通过基带芯片对调幅发射模块的状态进行设置，如开启/关闭调幅发射功能，为调幅发射模块设定幅度等。为了方便操作，也可以增加专门的按键，进行调幅发射模块的快捷设置。In the embodiment of the present invention, the keys of the mobile terminal can be used to set the state of the AM transmitting module through the baseband chip, such as turning on/off the AM transmitting function, setting the amplitude for the AM transmitting module, and the like. For the convenience of operation, special buttons can also be added for quick setting of the AM transmitter module.

本发明实施例还提供一种实现调幅发射的方法，图5为该方法的流程图，其具体步骤为：The embodiment of the present invention also provides a method for realizing AM transmission, and FIG. 5 is a flow chart of the method, and the specific steps are:

步骤501、在移动终端设置调幅发射功能。Step 501, setting the AM transmission function on the mobile terminal.

在本步骤中，可以在移动终端设置调幅发射模块即可实现设置调幅发射的功能。In this step, the function of setting the AM transmission can be realized by setting the AM transmission module on the mobile terminal.

步骤502、当移动终端播放音频时，通过设置的调幅发射功能将音频转换为幅度发射信号，使用设定幅度通过天线发送出去。Step 502: When the mobile terminal plays audio, convert the audio into an amplitude transmission signal through the set amplitude modulation transmission function, and send it out through the antenna with the set amplitude.

步骤503、通过移动终端外部的调幅接收器在设定幅度上接收移动终端发送的幅度发射信号并播放。Step 503: Receive and play the amplitude transmission signal sent by the mobile terminal at the set amplitude through the AM receiver outside the mobile terminal.

本发明实施例中，移动终端播放的音频可以为播放质量较高的音乐或通话时来自对方的话音等。In the embodiment of the present invention, the audio played by the mobile terminal may be high-quality music or voice from the other party during a call.

在本发明实施例中，移动终端可以为可以进行通信的终端，如手机或个人数字助理(PDA)等。In the embodiment of the present invention, the mobile terminal may be a terminal capable of communication, such as a mobile phone or a personal digital assistant (PDA).

从上述叙述可以看出，本发明实施例通过外部调频或调幅接收器，如车载音响设备进行免提通话，或播放移动终端存储的音乐，无需有线连接音响设备，大大方便了使用，增加了移动终端的卖点。As can be seen from the above description, the embodiment of the present invention uses an external FM or AM receiver, such as a car audio device for hands-free calls, or plays music stored in a mobile terminal, without the need for a wired connection to the audio device, which greatly facilitates use and increases mobility. The selling point of the terminal.

以上是对本发明具体实施例的说明，在具体的实施过程中可对本发明的方法进行适当的改进，以适应具体情况的具体需要。因此可以理解，根据本发明的具体实施方式只是起示范作用，并不用以限制本发明的保护范围。The above is the description of the specific embodiments of the present invention, and the method of the present invention can be appropriately improved during the specific implementation process to meet the specific needs of specific situations. Therefore, it can be understood that the specific implementation manners according to the present invention are only exemplary, and are not intended to limit the protection scope of the present invention.

Claims (10)

1, a kind of portable terminal of frequency modulation emission is characterized in that this portable terminal comprises baseband chip, frequency modulation transmitter module and antenna, wherein,

Baseband chip is used to control the state of frequency modulation transmitter module, sets the emission frequency for the frequency modulation transmitter module, and audio frequency is sent to the frequency modulation transmitter module;

The frequency modulation transmitter module is used under the control of baseband chip, is radiofrequency signal with the audio conversion that receives, and passes through antenna transmission on the emission frequency of setting.

2, portable terminal as claimed in claim 1 is characterized in that, described portable terminal also comprises button and display module, wherein,

Button is used for exchanging the state of penetrating module that takes place frequently by baseband chip and is provided with, for the frequency modulation transmitter module is set the emission frequency;

Display module is used for obtaining by baseband chip the state information of frequency modulation transmitter module, and shows.

3, portable terminal as claimed in claim 1 or 2 is characterized in that, described portable terminal also comprises multimedia audio chip and audio switch, is connected with baseband chip respectively, be connected to each other between multimedia audio chip and the audio switch, wherein,

The multimedia audio chip is used for producing audio frequency under the control of baseband chip, sends to audio switch;

Audio switch is used to receive the two-way audio from baseband chip and multimedia audio chip, and selects one of above-mentioned two-way audio to send to the frequency modulation transmitter module under the control of baseband chip.

4, portable terminal as claimed in claim 1 or 2 is characterized in that, when described audio frequency is mobile terminal call from the other side's the speech or the audio frequency of mobile terminal stores.

5, a kind of frequency modulation method for transmitting is characterized in that, this method comprises:

During the mobile terminal playing audio frequency, be radiofrequency signal with audio conversion, use the frequency of setting to pass through antenna transmission by the frequency modulation emission function that is provided with.

6, method as claimed in claim 5 is characterized in that, this method further comprises:

The audio signal that mobile terminal receive sends on the frequency of setting is also play.

7, a kind of system of frequency modulation emission reception is characterized in that this system comprises:

Portable terminal, the frequency modulation emission function that is used for by being provided with is a radiofrequency signal with audio conversion, uses the frequency of setting to give fremodyne by antenna transmission;

Fremodyne, be used on the frequency of setting mobile terminal receive by antenna transmission radiofrequency signal and play.

8, system as claimed in claim 7 is characterized in that, described portable terminal comprises: baseband chip, frequency modulation transmitter module and antenna, wherein,

Baseband chip is used to control the state of frequency modulation transmitter module, sets the emission frequency for the frequency modulation transmitter module, and audio frequency is sent to the frequency modulation transmitter module;

The frequency modulation transmitter module is used under the control of baseband chip, is radiofrequency signal with the audio conversion that receives, and passes through antenna transmission on the emission frequency of setting.

9, a kind of portable terminal of amplitude modulation emission is characterized in that this portable terminal comprises baseband chip, amplitude modulation transmitter module and antenna, wherein,

Baseband chip is used to control the state of amplitude modulation transmitter module, sets the emission amplitude for the amplitude modulation transmitter module, and audio frequency is sent to the amplitude modulation transmitter module;

The amplitude modulation transmitter module is used under the control of baseband chip, is that amplitude transmits with the audio conversion that receives, and passes through antenna transmission on the emission amplitude of setting.

10, a kind of amplitude modulation method for transmitting is characterized in that, this method comprises:

During the mobile terminal playing audio frequency, be that amplitude transmits with audio conversion, use the setting amplitude to pass through antenna transmission by the amplitude modulation emission function that is provided with.

Images