CN201234320Y - Mobile phone television terminal - Google Patents

Abstract

The utility model discloses a mobile phone TV terminal, which can complete mobile communication services when playing TV services. The terminal receives TV signals through a TV receiving device, receives communication signals through a communication transceiver device, and uses an application processing chip to combine the TV signals with the communication signals. Separate processing enables mobile communication while watching TV.

Description

A mobile TV terminal

technical field

The utility model relates to terminal equipment of a wireless communication system, in particular to a mobile phone TV terminal.

Background technique

Mobile TV refers to a technology or application that uses mobile phones as terminal devices to transmit TV content. At present, there are mainly three ways to implement mobile TV services: the first is to use cellular mobile networks, such as Sprint in the United States, my country Mobile and China Unicom, etc., have launched mobile TV services in this way. The second is the way of using satellite broadcasting, which South Korean operators plan to adopt. The third is to install a digital TV receiving module in the mobile phone to directly receive digital TV signals.

Utilize the mobile network to realize: At present, the mobile TV business launched by the mobile operators in the United States and my country is mainly realized by relying on the existing mobile network. China Mobile's mobile TV business is based on its General Packet Radio Service (GPRS) network, while China Unicom relies on its first phase of cdma2000 (CDMA1X) network. This kind of mobile TV service actually uses streaming media technology to launch the mobile TV service as a data service. Regardless of whether it is a GPRS mobile phone or a CDMA1X mobile phone, it is necessary to install corresponding playback software on a mobile phone terminal equipped with an operating system, generally a personal digital assistant (PDA) and other high-end products, and the corresponding TV programs are provided by mobile communication companies or through corresponding programs. Organized and provided by service providers (SPs).

Realization by using satellite network: It is a relatively novel technology to use mobile phones to receive TV program signals broadcast by satellites. Currently only South Korea is pushing this mobile TV broadcasting method (DMB).

Install digital TV receiving module in mobile phone: it is the most promising mobile TV technology at present, and it is realized by integrating digital TV and mobile phone. This method needs to install a microwave digital TV receiving module on the mobile phone terminal, so that the digital TV signal can be obtained directly without going through the link of the mobile communication network.

At present, the integration level of processing chips is getting higher and higher, and the functions are becoming more and more powerful, which provide objective conditions for the integration of TV and mobile communication. Of course, the integration of TV and mobile communication also faces various challenges:

(1) TV needs to contain a receiving channel independent of mobile communication;

(2) Protocol processing related to digital mobile TV;

(3) Strong video and audio decoding capabilities are required;

(4) Realize the above functions with lower power consumption.

Utility model content

The technical problem to be solved by the utility model is to provide a mobile terminal device capable of receiving TV signals, and the terminal device can complete mobile communication services while playing TV services.

In order to solve the above technical problems, the utility model provides a mobile phone TV terminal, including a TV receiver, a communication transceiver, an application processing chip, an audio processing chip and peripheral equipment, wherein:

The TV receiving device receives TV signals, tunes and demodulates the TV signals, and converts them into TV video signals and TV audio signals;

The communication transceiver device converts mobile service data into communication video signals and communication audio signals, and completes the receiving and sending of the communication video signals and communication audio signals;

The application processing chip is connected with the TV receiving device and the communication transceiver device, separates the TV video signal and the TV audio signal, and transmits the separated TV video signal and TV audio signal to the peripheral equipment for responsible Equipment for video display and audio playback;

The audio processing chip is connected to the communication transceiver device, the application processing chip and peripheral equipment to complete the transmission of the communication audio signal and the output of the TV audio signal;

The peripheral device is connected with the application processing chip and the audio processing chip to complete the interaction with the user, display image content according to the TV video signal and communication video signal, and play sound according to the TV audio signal and communication audio signal.

In the above-mentioned mobile phone TV terminal, the application processing chip can be connected to the TV receiving device through an I2C bus and a serial peripheral interface.

In the above mobile TV terminal, the audio processing chip can be connected to the application processing chip through an I2S bus and a serial peripheral interface.

In the above-mentioned mobile phone TV terminal, the TV receiving device may include a TV receiving and transmitting antenna and a TV signal conversion device, wherein:

The TV transceiver antenna receives the TV signal;

The TV signal conversion device is connected with the TV transceiver antenna and the application processing chip, obtains the TV video signal and TV audio signal according to the TV signal, and transmits the TV video signal and TV audio signal to the Application processing chip.

In the above-mentioned mobile phone TV terminal, the communication transceiver device may include a mobile phone communication antenna, a mobile phone radio frequency transceiver device, and a mobile phone baseband chip, wherein:

The mobile phone communication antenna is connected with the mobile phone radio frequency transceiver device, and completes the communication radio frequency signal transmission and reception together with the mobile phone radio frequency transceiver device;

The baseband chip of the mobile phone is connected with the application processing chip, the audio processing chip and the radio frequency transceiver device of the mobile phone to complete the mobile communication service function.

Further, the baseband chip of the mobile phone can be connected with the application processing chip through the general input and output interface and the serial port, and complete the communication service with the application processing chip about calling, task assignment, interrupt request and task feedback.

Further, the baseband chip of the mobile phone can be connected with the radio frequency transceiver device of the mobile phone through the IQ data line and the CTRL signal line to complete data transmission and control information transmission.

In the mobile TV terminal as described above, the peripheral equipment may include a display screen, a keyboard, an audio output speaker, a microphone and a receiver, wherein:

The display screen is connected to the application processing chip, and displays video information to the user according to the TV video signal and the communication video signal;

The keyboard is connected to the application processing chip and accepts information typed by the user;

The audio output speaker is connected to the audio processing chip, and plays sound according to the TV audio signal and communication audio signal;

The microphone is connected to the audio processing chip and plays the received communication audio signal;

The receiver, connected to the audio processing chip, converts the user's voice into a communication audio signal.

Further, the display screen and keyboard can be connected to the application processing chip through a serial peripheral interface; the audio output speaker, microphone and receiver can be connected to the audio processing chip through an analog signal line.

Further, the display screen and the TV receiving device may share a serial peripheral interface through a switch device and be connected to the application processing chip.

Compared with the prior art, the utility model adopts the application processing chip to control the TV receiving device and the communication transceiver device, and the baseband chip only needs to complete the conventional communication function, and can perform mobile communication while watching TV.

Description of drawings

Fig. 1 is a schematic diagram of the composition of an embodiment of the utility model.

Fig. 2 is a schematic diagram of an embodiment of the communication transceiver device described in the present invention.

Fig. 3 is a schematic diagram of an embodiment of the television receiving device described in the present invention.

Fig. 4 is a schematic diagram of an embodiment of the peripheral device described in the present invention.

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings.

The aforementioned digital TV receiving module is installed in the mobile phone to receive TV signals and play digital TV video images, but the TV receiving module is controlled by the baseband chip in the mobile phone, and mobile communication services cannot be performed while playing TV video images. . Fig. 1 shows a schematic structural diagram of the utility model, including a television receiving device 10, a communication transceiver device 20, an application processing chip 30, an audio processing chip 40 and peripheral equipment 50, wherein:

The TV receiving device 10 is connected with the application processing chip 30, receives TV signals, tunes and demodulates the received TV signals, converts them into TV video signals and TV audio signals, and transmits them to the application processing chip 30;

The communication transceiver device 20 is connected with the application processing chip 30 and the audio processing chip 40, converts the mobile service data into a communication video signal and a communication audio signal, and completes the receiving and sending of the communication video signal and the communication audio signal;

The application processing chip 30 is connected with the television receiving device 10, the communication transceiver device 20, the audio processing chip 40 and the peripheral equipment 50, and the television video signal and the television audio signal transmitted by the television receiving device 10 are separated into video and audio, and respectively The separated TV video signal and TV audio signal are sent to the peripheral device responsible for video display and audio playback for video display and audio playback;

The audio processing chip 40 is connected with the communication transceiver device 20, the application processing chip 30 and the peripheral equipment 50 to complete the transmission of the communication audio signal and the output of the TV audio signal;

The peripheral device 50 is connected with the application processing chip 30 and the audio processing chip 40 to complete the interaction with the user, including accepting user input, displaying image content according to the TV video signal and communication video signal, and playing sound according to the TV audio signal and communication audio signal etc.

The application processing chip 30 is powered on after detecting the power-on signal, and starts the communication transceiver device 20 . After the communication transceiver device 20 is started, it searches for base station signals and establishes synchronization with the communication base station, and then is in a standby state, waiting for called or calling operations. Wherein, the communication transceiver device 20, as shown in Figure 2, includes:

The mobile phone communication antenna 21 is connected with the mobile phone radio frequency transceiver device 22, and completes the communication radio frequency signal transmission and reception together with the mobile phone radio frequency transceiver device 22;

The baseband chip 23 of the mobile phone is connected with the application processing chip 30, the audio processing chip 40 and the radio frequency transceiver device 22 of the mobile phone, wherein it is connected with the application processing chip 30 through a general-purpose input and output (GPIO) interface, and completes the call and task assignment with the application processing chip 30 And the communication of interruption request and task feedback; Connect with mobile phone radio frequency transceiver device 22 by IQ data line and CTRL signal line, complete data transmission and control information transmission; Also be connected with audio processing chip 40, complete the voice transmission of communication business.

After the application processing chip 30 starts the baseband chip 23 of the mobile phone through the GPIO interface, the baseband chip 23 of the mobile phone transmits a control command and starts the radio frequency transceiver device 22 of the mobile phone to search for base station signals until synchronization with the base station is established, and then it is in a standby state.

When there is a called or calling, the communication transceiver 20 establishes communication with the application processing chip 30 through the serial port, and the application processing chip 30 is connected with the peripheral device 50 through the GPIO interface and controls the peripheral device 50; The interface (Serial Peripheral Interface, abbreviated as SPI) controls the audio processing chip 40 and the display screen 51 respectively, and is ready to establish or cancel the call according to the user's choice.

Before the TV receiving device 10 is turned on, the TV receiving device 10 is in a dormant state. After receiving the demand for watching TV, the application processing chip 30 sends an instruction to start the TV receiving device 10 through the I2C bus (Inter-Integrated Circuit bus), and communicates with the communication transceiver device 20 . The TV receiving device 10 starts after receiving the start signal of the application processing chip 30, tunes and demodulates the received TV signal, converts it into a TV video signal and a TV audio signal, and converts the converted TV video signal and TV audio signal It is sent to the application processing chip 30 through the SPI interface. After the application processing chip 30 separates the video and audio from the received TV video signal and TV audio signal, the TV video signal and TV audio signal are respectively transmitted to the peripheral devices responsible for video display and audio playback for display and playback. Wherein, the television receiving device 10, as shown in Figure 3, includes:

TV transceiver antenna 11, receiving TV signals;

The TV signal conversion device 12 is connected with the TV transceiver antenna 11 and the application processing chip 30, and performs processing such as tuning and demodulation on the TV signal received by the TV transceiver antenna 11 to obtain a TV video signal and a TV audio signal, and then through the SPI interface The signal is sent to the application processing chip 30, and the application processing chip 30 completes the separation of the TV video signal and the TV audio signal.

Based on the embodiment of the communication transceiver device shown in FIG. 2 , the application processing chip 30 communicates with the mobile phone baseband chip 23 by connecting the serial port of the mobile phone baseband chip 23 in the communication transceiver device 20 after starting the television receiver 10 .

While the application processing chip 30 is turning on the television receiving device 10 , the communication transceiver device 20 is in a standby state. When the TV receiving device 10 is playing a TV program, if the communication transceiver device 20 has requirements such as calling, called or data transmission, the application processing chip 30 receives the signal from the peripheral device 50 or the communication transceiver device 20 and selects an operation, such as:

You can choose to turn off the TV receiving device 10, so that the terminal equipment is in a single mobile communication mode, and perform calls or data transmission operations of mobile communication services;

You can choose not to close the TV receiving device 10, output the TV information and communication information to the peripheral device 50 at the same time, close the audio channel of the TV signal and open the audio channel of the communication signal, and carry out the call or data transmission operation of the communication service; After the call or data transmission ends, the peripheral device 50 returns to the state of playing TV programs;

It is also possible to simultaneously play TV programs and mobile communication, display TV video information and communication video information in split screens through the video display device on the peripheral device 50, and play TV audio information and communication audio information of TV programs respectively through different audio playback devices .

The peripheral device 50 shown in Figure 1 mainly completes the input and output functions, as shown in Figure 4, mainly includes:

The display screen 51 is connected to the application processing chip 30 through the SPI interface, and displays video information to the user according to the TV video signal and the communication video signal;

The keyboard 52 is connected to the application processing chip 30 through the SPI interface, and accepts the information entered by the user;

Audio output loudspeaker 53 is connected with audio processing chip 40 by analog signal line, plays sound according to TV audio signal and communication audio signal;

The microphone 54 is connected to the audio processing chip 40 through an analog signal line, and plays the received communication audio signal;

The receiver 55 is connected to the audio processing chip 40 through an analog signal line, and converts the user's voice into a communication audio signal.

Based on the embodiment of the communication transceiver 20 shown in FIG. 2 and the embodiment of the television receiver 10 shown in FIG. Transmission requirements, the application processing chip 30 will receive the interrupt signal sent by the keyboard 52 or the mobile phone baseband chip 23, according to the requirements of the agreement, choose whether to close the follow-up operation of the TV receiving device 10, which mode to choose, and control it through the software protocol Specifically, the application processing chip 30 monitors the television receiving device 10 and the communication transceiver device 20 in real time, and quickly responds to the service requests put forward by the television receiving device 10 and the communication transceiver device 20, as well as controls the peripheral equipment 50; the audio processing chip 40 separates and processes the TV audio signal and communication audio signal respectively transmitted from the TV receiving device 10 and the communication transceiver device 20 , and controls the peripheral equipment 50 .

In addition, when there is a callee or a caller, the baseband chip 23 of the mobile phone establishes communication with the application processing chip 30 through the serial port, and the application processing chip 30 controls the display screen 51 through the SPI at the same time, and chooses whether to open the microphone according to whether the user chooses to establish a call or not. 54. An external device such as a receiver 55 is ready to establish a call or cancel a call.

The application processing chip 30 separates the video and audio from the received TV signal, transmits the TV video signal to the display screen 51 through the bus, and controls the display screen 51 to display the TV video signal through the SPI. While processing the TV video signal, the application processing chip 30 also transmits the TV audio signal to the audio processing chip 40 through the I2S bus (Inter-Integrated Circuit Sound Bus), and controls the audio processing chip 40 to the TV audio signal through another SPI port. After processing, the audio output speaker 53 is driven to convert the TV audio data into sound for playback.

The TV receiving device 10 and the display screen 51 can also share the SPI interface through a switch device (Switch), realize the connection with the application processing chip 30, and complete the sorting of the TV program signal and the control signal of the display screen by the application processing chip 30.

In the prior art, the mobile phone baseband chip is used to control the TV receiving device. Compared with this, the utility model adopts a dedicated application processing chip to control the TV receiving device and the communication transceiver, and can perform mobile communication while watching TV. In the prior art, the demodulation module needed to receive TV signals is directly connected to the baseband chip of the mobile phone, that is, the baseband chip shared by mobile communication and TV business. The utility model uses an application processing chip to control and coordinate the TV business and mobile communication business. The baseband chip only needs to complete conventional communication functions.

Although the embodiments disclosed in the present utility model are as above, the content described is only an embodiment adopted for the convenience of understanding the present utility model, and is not intended to limit the present utility model. Anyone skilled in the technical field to which the utility model belongs can make any modifications and changes in the form and details of the implementation without departing from the spirit and scope disclosed in the utility model, but the patent of the utility model The scope of protection must still be based on the scope defined in the appended claims.

Claims (10)

1. A mobile TV terminal, characterized in that it includes a TV receiving device, a communication transceiver, an application processing chip, an audio processing chip and peripheral equipment, wherein: The TV receiving device receives TV signals, tunes and demodulates the TV signals, and converts them into TV video signals and TV audio signals; The communication transceiver device converts mobile service data into communication video signals and communication audio signals, and completes the receiving and sending of the communication video signals and communication audio signals; The application processing chip is connected with the TV receiving device and the communication transceiver device, separates the TV video signal and the TV audio signal, and transmits the separated TV video signal and TV audio signal to the peripheral equipment for responsible Equipment for video display and audio playback; The audio processing chip is connected to the communication transceiver device, the application processing chip and peripheral equipment to complete the transmission of the communication audio signal and the output of the TV audio signal; The peripheral device is connected with the application processing chip and the audio processing chip to complete the interaction with the user, display image content according to the TV video signal and communication video signal, and play sound according to the TV audio signal and communication audio signal. 2. The mobile TV terminal according to claim 1, wherein the application processing chip is connected to the TV receiving device through an I2C bus and a serial peripheral interface. 3. The mobile TV terminal according to claim 1, wherein the audio processing chip is connected to the application processing chip through an I2S bus and a serial peripheral interface. 4. The mobile phone TV terminal according to claim 1, wherein the TV receiving device includes a TV receiving and transmitting antenna and a TV signal conversion device, wherein: The TV transceiver antenna receives the TV signal; The TV signal conversion device is connected with the TV transceiver antenna and the application processing chip, obtains the TV video signal and TV audio signal according to the TV signal, and transmits the TV video signal and TV audio signal to the Application processing chip. 5. The mobile phone TV terminal according to claim 1, wherein the communication transceiver device includes a mobile phone communication antenna, a mobile phone radio frequency transceiver device and a mobile phone baseband chip, wherein: The mobile phone communication antenna is connected with the mobile phone radio frequency transceiver device, and completes the communication radio frequency signal transmission and reception together with the mobile phone radio frequency transceiver device; The baseband chip of the mobile phone is connected with the application processing chip, the audio processing chip and the radio frequency transceiver device of the mobile phone to complete the mobile communication service function. 6. The mobile phone TV terminal according to claim 5, wherein the baseband chip of the mobile phone is connected to the application processing chip through a general-purpose input and output interface and a serial port, and completes calls and task assignments with the application processing chip and Communication service for interrupt request and task feedback. 7. The mobile phone TV terminal according to claim 5, wherein the baseband chip of the mobile phone is connected to the radio frequency transceiver device of the mobile phone through an IQ data line and a CTRL signal line to complete data transmission and control information transmission. 8. The mobile phone TV terminal according to claim 1, wherein the peripheral equipment includes a display screen, a keyboard, an audio output speaker, a microphone and a receiver, wherein: The display screen is connected to the application processing chip, and displays video information to the user according to the TV video signal and the communication video signal; The keyboard is connected to the application processing chip and accepts information typed by the user; The audio output speaker is connected to the audio processing chip, and plays sound according to the TV audio signal and communication audio signal; The microphone is connected to the audio processing chip and plays the received communication audio signal; The receiver, connected to the audio processing chip, converts the user's voice into a communication audio signal. 9. The mobile TV terminal according to claim 8, wherein the display screen and keyboard are connected to the application processing chip through a serial peripheral interface; the audio output speaker, microphone and receiver are connected through The analog signal line is connected with the audio processing chip. 10. The mobile phone TV terminal according to claim 8, wherein the display screen and the TV receiving device share a serial peripheral interface through a switch device and are connected to the application processing chip.

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