CN201163797Y

CN201163797Y - Digital television receiving module used for mobile phone

Info

Publication number: CN201163797Y
Application number: CNU2007201964692U
Authority: CN
Inventors: 郭文秀; 朱永亮; 侯卫兵; 刘岩
Original assignee: Shenzhen Research Institute Tsinghua University
Current assignee: Tsinghua University; Shenzhen Research Institute Tsinghua University
Priority date: 2007-12-26
Filing date: 2007-12-26
Publication date: 2008-12-10
Anticipated expiration: 2017-12-26

Abstract

The utility model discloses a receiving module of a digital television for a mobile phone, relating to the receiving module of a mobile digital television. The receiving module of the digital television comprises a receiving and demodulating module (1) for a ground digital television signal, a core processing and decoding module (2) for a digital television signal, a module interactive communication protocol module (3), and an audio-video interconnecting interface module (4). The modules are arranged on a submicron CMOS device; the receiving and demodulating module (1) for the ground digital television signal is connected with the core processing and decoding module (2) for the digital television signal, the core processing and decoding module (2) for the digital television signal is respectively connected with the module interactive communication protocol module (3) and the audio-video interconnecting interface module (4), and the module interactive communication protocol module (3) and the audio-video interconnecting interface module (4) are connected with a mobile phone system. The utility model provides a module that is fit for mobile system both in power consumption and on volume, and is capable of agilely receiving digital television programs in mobile environment.

Description

The digital TV receiver module that is used for mobile phone

Technical field

The utility model relates to the receiver module of mobile digital TV.

Background technology

On the CES consumer electronics Da Zhan of the whole world, such trend occurred: video contents such as TV march to various portable equipments comprehensively.Traditional television set incarnation has become mobile phone, PDA, vehicle-mounted rating terminal equipment etc.The mobile TV that integrates mobile phone, broadcasting, the big one-tenth of TV has blured between radio and TV industry and the telecommunications industry originally with regard to very undistinct boundary line.Obviously see easily that mobile digital broadcast television is two kinds of most popular in history achievements of technology innovation: the product of TV and mobile phone marriage, so it will produce the great sensation effect, makes global consumer excited for it.

The implementation of mobile phone TV services mainly contains three kinds: one, be to utilize cellular mobile network to realize, utilized this mode to release mobile phone TV services (3G) as U.S. Sprint company, China Mobile and CHINAUNICOM.Two, be the mode of utilizing satellite broadcasting, this mode is adopted in operator's plan of Korea S.The third is the receiver module that Digital Television is installed in mobile phone, directly receiving digital television signal.

Summary of the invention

The digital TV receiver module that is used for mobile phone that provides a kind of volume little is provided the purpose of this utility model.

The purpose of this utility model can realize like this, designs a kind of digital TV receiver module that is used for mobile phone, comprising:

Ground digital television signal reception and demodulation module, digital television signal core processing and decoder module, module interactive communication protocol module, audio frequency and video interconnect interface module, above-mentioned module is arranged on the cmos device of sub-micron;

Ground digital television signal reception and demodulation module are connected with digital television signal core processing and decoder module, digital television signal core processing and decoder module are connected with module interactive communication protocol module, audio frequency and video interconnect interface module respectively, and module interactive communication protocol module is connected with cell phone system with audio frequency and video interconnect interface module.

It is a kind of what all be suitable for cell phone system on the power consumption and on the volume that the utility model provides, and can watch the module of Digital Television very delicately in mobile environment.

Description of drawings

Fig. 1 is the system configuration schematic diagram of the utility model preferred embodiment.

Embodiment

The utility model will be further described below in conjunction with embodiment.

As shown in Figure 1, a kind of digital TV receiver module that is used for mobile phone comprises:

Ground digital television signal reception and demodulation module 1, digital television signal core processing and decoder module 2, module interactive communication protocol module 3, audio frequency and video interconnect interface module 4, above-mentioned module is arranged on the cmos device of sub-micron;

Ground digital television signal receives and demodulation module 1 is connected with digital television signal core processing and decoder module 2, digital television signal core processing and decoder module 2 are connected with module interactive communication protocol module (3), audio frequency and video interconnect interface module 4 respectively, and module interactive communication protocol module 3 is connected with cell phone system with audio frequency and video interconnect interface module 4.

Tuner, demodulator/decoder and signal processor be incorporated in the sub-micron cmos device can reduce system power dissipation, thus extending battery life.The energy that sub-micron CMOS consumes radio-frequency tuner only is the part of conventional tuner.

Described ground digital television signal receives and demodulation module 1 is responded to radiofrequency signal by all band digital TV antenna, on the radiofrequency signal input channel, an impedance matching circuit is set.

Described all band digital TV antenna is a telescopic antenna, is made by the pull bar metal more than 3 sections, can receive the radiofrequency signal of VHF, UHF wavelength band, and volume is tiny, can ensconce hand set machine shell inside.

Described radio-frequency (RF) impedance match circuit is at 50 ohm of telescopic antenna designs being adopted, the radiofrequency signal optimization that makes reception.

Described digital television signal receives and demodulation module 1, the digital television signal radiofrequency signal that butt joint takes in converts baseband signal to after carrying out low noise amplification, filtering, and to after the baseband signal amplification filtering, carry out demodulation process, output meets the TS stream of DVB standard.

2 pairs of TS streams of described digital television signal core processing and decoder module carry out demultiplexing, decoding processing, and carry out the DAC conversion and the coding of video, and the input message instruction of process user, the generation of responsible interface menu are drawn.

Described module interactive communication protocol module 3 comprises that cell phone system passes through interface transmitting control commands and relevant data, the DTV receiver module sends relevant frequency point information, EPG information to cell phone system by interface, this communication protocol module 3 provides mobile phone all controlled function to the DTV receiver module, comprises resetting of power management and system.

Described audio frequency and video interconnect interface module 4 comprises audio frequency DAC and the power amplifier chip of I2S; The audio signal of Digital Television is handled by audio frequency DAC and the power amplifier chip of I2S;

Audio frequency and video interconnect interface 4 connects digital television signal core processing and decoder module 2 and cell phone system by the digital video signal of BT-656 form, the vision signal of 720 * 576 resolution is converted to the resolution of mobile phone display screen.

Described audio frequency and video interconnect interface adopts the digital visual interface of BT656 form and the digital audio format of I2S, and this module is connected with cell phone system, realizes watching of Digital Television.

During the utility model work, the terrestrial wireless digital television signal that receives by antenna carries out demodulation through ground digital television signal reception and demodulation module 1, the TS stream of output numeral, be sent to digital television signal core processing and decoder module 2, the decoding of audio frequency and video is filtered, carried out to this module 2 by demultiplexing, the PID to TS stream, the vision signal (BT-656) of output number format and the audio signal of I2S, the audio frequency and video that output to mobile phone present module.Communication interaction module 3 is undertaken by I2C interface and cell phone system.

Claims

1, a kind of digital TV receiver module that is used for mobile phone is characterized in that comprising:

Ground digital television signal reception and demodulation module (1), digital television signal core processing and decoder module (2), module interactive communication protocol module (3), audio frequency and video interconnect interface module (4), above-mentioned module is arranged on the cmos device of sub-micron;

Ground digital television signal receives and demodulation module (1) is connected with digital television signal core processing and decoder module (2), digital television signal core processing and decoder module (2) are connected with module interactive communication protocol module (3), audio frequency and video interconnect interface module (4) respectively, and module interactive communication protocol module (3) is connected with cell phone system with audio frequency and video interconnect interface module (4).

2, the digital TV receiver module that is used for mobile phone according to claim 1, it is characterized in that: described ground digital television signal receives and demodulation module (1) is responded to radiofrequency signal by all band digital TV antenna, on the radiofrequency signal input channel, an impedance matching circuit is set.

3, the digital TV receiver module that is used for mobile phone according to claim 1 is characterized in that: described audio frequency and video interconnect interface (4) comprises audio frequency DAC and the power amplifier chip of I2S; The audio signal of Digital Television is handled by audio frequency DAC and the power amplifier chip of I2S;

Audio frequency and video interconnect interface (4) connects digital television signal core processing and decoder module (2) and cell phone system by the digital video signal of BT-656 form, the vision signal of 720 * 576 resolution is converted to the resolution of mobile phone display screen.