CN101567988A - Multifunctional USB GB terrestrial digital TV receiver stick - Google Patents
Multifunctional USB GB terrestrial digital TV receiver stick Download PDFInfo
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- CN101567988A CN101567988A CNA2009101110648A CN200910111064A CN101567988A CN 101567988 A CN101567988 A CN 101567988A CN A2009101110648 A CNA2009101110648 A CN A2009101110648A CN 200910111064 A CN200910111064 A CN 200910111064A CN 101567988 A CN101567988 A CN 101567988A
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Abstract
The invention provides a multifunctional USB GB terrestrial digital TV receiver stick, including an antennae, a radio-frequency head chip, a signal processing module, a power supply management module, a clock signal generator, a USB chip, a storage chip, as well as an I2C bus. The radio-frequency head chip receives digit signal by antennae, the frontend attunes the radio-frequency head to a certain digital frequency channel under the control of CPU module inside USB chip through I2C bus, and demodulates the signal processing module of frontend, thereby the terrestrial GB digital signal is demodulated into TS flow. The modulated transmission flow (TS flow) data together with a symbol signal are inputted into the USB chip by the transmission flow, and then the TS flow is transmitted into personal computer through the input channel. The multifunctional USB GB terrestrial digital TV receiver stick provided the invention has the advantages that: not only mobile and high speed reception of television signal is realized, but also as the television receiver stick has small volume, and is convenient for watching and carrying, the product can by widely used in personal computer.
Description
[technical field]
The present invention relates to a kind of radiovisor, refer in particular to a kind of terrestrial digital TV receiver stick, is collection audio frequency and video and the mobile multifunctional digital terminal equipment that is received as one.
[background technology]
At present, TV programme develops towards the digital program direction and becomes trend.Broadcasting and TV in all parts of the country begin to transmit digital television program one after another, the domestic terminal apparatus of various application occurred satisfying, as digital TV set-top box, network television-set top-set-box, media filter.
Existing set-top box is receiving digital signals fixedly, the place of watching is limited to, can not satisfy present user and move the demand of watching the real-time television program, though mobile vehicle-mounted TV set-top box is arranged, inconvenient user carry and can't with just combine now at the personal computer of high speed development.
[summary of the invention]
Technical problem to be solved by this invention is to provide a kind of volume little and Multifunctional USB GB terrestrial digital TV receiver stick that can mobile high speed received television signal.
The present invention solves the problems of the technologies described above by the following technical programs: a kind of Multifunctional USB GB terrestrial digital TV receiver stick, comprise antenna, the tuner chip, signal processing module, power management module, clock-signal generator, the USB chip, storage chip, and I2C (Inter-Integrated Circuit, interior integrated circuit) bus, described antenna is connected to the tuner chip, the output of tuner signal is connected to signal processing module, the output of signal processing module is connected to the USB chip, clock-signal generator is connected respectively to the tuner chip, signal processing module and USB chip, power management module is connected to tuner chip and signal processing module, storage chip is connected on the USB chip, and the delivery outlet of signal processing module is connected to tuner chip and USB chip by the I2C bus simultaneously.
The model of described tuner chip is ADMTV-102.
The model of described signal processing module is LGS8GL5-A1.
The model of described USB chip is U-CY7C68013-56QFN.
The model of described storage chip is 24AA00-0T.
The advantage of Multifunctional USB GB terrestrial digital TV receiver stick of the present invention is: not only realized mobile high speed received television signal, and because this television reception barred body is long-pending petite, can make things convenient for user's broadcast program neatly whenever and wherever possible; By coupling to audio decoder and Video Decoder, this television reception rod can provide more true to nature, has more the picture of color texture, enjoy more interesting to listen to audiovisual simultaneously newly experiences, and because volume is little, watch, can be widely used on the personal computer with easy to carry.
[description of drawings]
The invention will be further described in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is the structured flowchart of Multifunctional USB GB terrestrial digital TV receiver stick of the present invention together with personal computer.
Fig. 2 is a hardware block diagram of using the personal computer of Multifunctional USB GB terrestrial digital TV receiver stick of the present invention.
[embodiment]
See also Fig. 1, Multifunctional USB GB terrestrial digital TV receiver stick of the present invention comprises antenna, tuner (Tuner) chip, signal processing module, power management module, clock-signal generator, USB chip, storage chip, and I2C (Inter-Integrated Circuit, interior integrated circuit) bus.
Described antenna is connected to the tuner chip, the output of tuner signal is connected to signal processing module, the output of signal processing module is connected to the USB chip, clock-signal generator is connected respectively to tuner chip, signal processing module, and USB chip, power management module is connected to tuner chip and signal processing module, and stable voltage is provided.Storage chip is connected on the USB chip, and the delivery outlet of signal processing module is connected to tuner chip and USB chip by the I2C bus simultaneously.This Multifunctional USB GB terrestrial digital TV receiver stick is by USB chip and personal computer communication.
See also Fig. 2, the hardware of personal computer part comprises TS stream (transport stream) demultiplexer, is connected to the audio decoder and the PES analyzer of TS stream demultiplexer, and is connected to Video Decoder and blender behind the PES analyzer successively.
Wherein the effect of each critical piece and the use model in the present embodiment are as described below:
(1) model of tuner chip is ADMTV-102, and this tuner chip has extra small silicon tuner, and strong cohesiveness is received ability, and it is responsible for locking frequency point and reception to ground digital television signal.When the playout software in personal computer will carry out program searching or broadcast, the frequency of program searching or playing programs is transmitted toward hardware, frequency imports into by driver, be sent in the tuner chip by the I2C bus, make phase-locked loop downconvert to intermediate-freuqncy signal to the radiofrequency signal that receives during the hardware operate as normal to the locking of this frequency;
(2) model of signal processing module is LGS8GL5-A1, be responsible for TV signal is carried out digital demodulation and channel-decoding, after the tuner chip is to locking frequency point, in this signal processing module, send into IQ (Inphase/Quadrature phase, the inphase/orthogonal displacement) signal, the frequency that this signal processing module imports into according to upper playout software is to after importing the IQ signal into and locking, signal is carried out digital demodulation and channel-decoding, generate the TS flow data, the TS flow data is further sent toward next hardware;
(3) model of USB chip is U-CY7C68013-56QFN, has high speed USB 2.0 interfaces, and the data after signal processing module is handled are transmitted and by the I2C bus hardware of rear end controlled;
(4) storage chip is 24AA00-0T EEPROM (electric erasable) storage chip, the operation sequence that is used to store the USB chip;
(5) in personal computer, each module is that the data of uploading are handled, and wherein playout software is sent into after receiving the TS flow data that the USB chip imports in the TS stream demultiplexer.
The operation principle of Multifunctional USB GB terrestrial digital TV receiver stick of the present invention is as described below:
The tuner chip is by the antenna receiving digital signals, front end under the control of USB chip internal CPU module (by the I2C bus) tuner be tuned to certain digital channel, signal processing module by front end carries out demodulation, thereby ground GB digital demodulation signal is become TS stream.
The transport stream that demodulates (TS stream) data, spread TS into personal computer by this input channel by transmitting stream input USB chip then together with marking signal.Application software on the personal computer is carried out data processing to it after receiving TS stream.At first, the TS flow data is isolated sound, video PES (Packetized Elementary Stream by TS stream demultiplexer, the elementary stream of packing) stream, be sent to audio decoder and Video Decoder then respectively, TS stream demultiplexer also extracts PCR (the Program Clock Reference in the TS stream simultaneously, the TV programme reference) information is used for clock recovery.Audio frequency PES stream is by the audio decoder decode outputting audio data; Video PES stream is unpacked into video ES (Elementary Stream, elementary stream) stream through the PES analyzer, passes through output digital video component signal after the processing of Video Decoder and blender again.
The present invention is based on the Digital Television mobile receiving device of GB terrestrial digital TV standard, can receive multiple carrier digital television signal based on modulation such as 32QAM, 64QAM, compare with fixing machine top box or traditional TV, most important advantage is convenient watching digital television program.Except that possessing basic reception video/audio image, can also record program easily, and can catch the video pictures of liking, save as exquisite picture, when using the widescreen notebook computer, more can enjoy the digital TV in high resolution program of high definition image quality; Timing executive plan task; The acquisition function of regularly recording a video makes you can easily preserve the TV programme of liking.The tenability of value-added service from now on will be stronger, and business function will be more, such as the broadcast of many pictures, realizes program storage, time shift, sees while recording, advertisement skips etc.; Comprehensive GB terrestrial DMB-TH broadcasting, mobile reception are used and are conveniently watched it is a bright spot of technical products, to bring more enriching experiences to the user, the user will break away from the definition of traditional apparatus of digital television receiving, become movably multimedia terminal, this multimedia terminal has the autgmentability that receiving ability is strong, antijamming capability is high, powerful, the convenient feature of using.
Claims (5)
1. Multifunctional USB GB terrestrial digital TV receiver stick, it is characterized in that: comprise antenna, the tuner chip, signal processing module, power management module, clock-signal generator, the USB chip, storage chip, and I2C bus, described antenna is connected to the tuner chip, the output of tuner signal is connected to signal processing module, the output of signal processing module is connected to the USB chip, clock-signal generator is connected respectively to the tuner chip, signal processing module and USB chip, power management module is connected to tuner chip and signal processing module, storage chip is connected on the USB chip, and the delivery outlet of signal processing module is connected to tuner chip and USB chip by the I2C bus simultaneously.
2. Multifunctional USB GB terrestrial digital TV receiver stick as claimed in claim 1 is characterized in that: the model of described tuner chip is ADMTV-102.
3. Multifunctional USB GB terrestrial digital TV receiver stick as claimed in claim 1 is characterized in that: the model of described signal processing module is LGS8GL5-A1.
4. Multifunctional USB GB terrestrial digital TV receiver stick as claimed in claim 1 is characterized in that: the model of described USB chip is U-CY7C68013-56QFN.
5. Multifunctional USB GB terrestrial digital TV receiver stick as claimed in claim 1 is characterized in that: the model of described storage chip is 24AA00-0T.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101110648A CN101567988A (en) | 2009-02-13 | 2009-02-13 | Multifunctional USB GB terrestrial digital TV receiver stick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101110648A CN101567988A (en) | 2009-02-13 | 2009-02-13 | Multifunctional USB GB terrestrial digital TV receiver stick |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101567988A true CN101567988A (en) | 2009-10-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009101110648A Pending CN101567988A (en) | 2009-02-13 | 2009-02-13 | Multifunctional USB GB terrestrial digital TV receiver stick |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103686299A (en) * | 2013-07-05 | 2014-03-26 | 郑州威科姆科技股份有限公司 | Universal digital TV playing method based on android terminal device |
| CN105898454A (en) * | 2015-11-20 | 2016-08-24 | 乐视致新电子科技（天津）有限公司 | Signal processing device and multimedia playback device |
-
2009
- 2009-02-13 CN CNA2009101110648A patent/CN101567988A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103686299A (en) * | 2013-07-05 | 2014-03-26 | 郑州威科姆科技股份有限公司 | Universal digital TV playing method based on android terminal device |
| CN105898454A (en) * | 2015-11-20 | 2016-08-24 | 乐视致新电子科技（天津）有限公司 | Signal processing device and multimedia playback device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20091028 |