CN2800665Y - Integrative high definition digital TV set - Google Patents
Integrative high definition digital TV set Download PDFInfo
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- CN2800665Y CN2800665Y CNU2005200500352U CN200520050035U CN2800665Y CN 2800665 Y CN2800665 Y CN 2800665Y CN U2005200500352 U CNU2005200500352 U CN U2005200500352U CN 200520050035 U CN200520050035 U CN 200520050035U CN 2800665 Y CN2800665 Y CN 2800665Y
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Abstract
The utility model relates to an integrative high definition digital TV, which is capable of being divided into a video signal decoding part and an information visualization part and comprises a tuner, a channel demodulator, a transmitting stream solution multiplexer, an MPEG-2 decoder, a CPU, a memory, an interface circuit, an electric cable modem (CM) module and a conditional receiving module. The Integrative high definition digital TV is capable of receiving 720 P, 1080 I digital TV high-frequency signals and adopts a DSP technology to process digital television signals. Interface data between the video signal decoding part and the information visualization part satisfies ITU656 standard format and is capable of driving TFT-LCD display screens from 5 inch to 30 inch and PDP display screens from 30 inch to 64 inch. The utility model solves the technical problems that the existing digital TV receiving device needs external set-top boxes; the set-top box is connected with a simulate TV by a simulate CVBS or an Y/C interface; the utility model has lower clearness, poor system flexibility, poor expansion capability, etc.
Description
Technical field
The utility model belongs to the digital television techniques field, specially refers to integrated high definition digital television machine.
Background technology
Integrated high definition digital television machine is a kind of intelligent information terminal, and it can make user's receiving digital television signal, makes the user enjoy omnibearing information services such as Digital Television, high-speed datacasting and quasi-video request program.Integrated high definition digital television machine comprises hardware and software two parts, and it can be divided into 4 layers, upwards is respectively the end of from: hardware, bottom software, middleware and relative application software.Hardware provides the hardware platform of integrated high definition digital television machine.Bottom software provides real time operating system (RTOS) and various hardware drive program, and RTOS works in real-time environment; Be used for the management of local resource and Internet resources, the basic operating function and the access control of equipment are provided.Middleware is meant the software section between inner real time operating system of integrated high definition digital television machine and the application software, and it is made of various virtual machines usually; Middleware is separated application software and the bottom software that depends on hardware, makes application software not rely on concrete hardware platform; Middleware has defined one group of standard and complete application programming interfaces make application program be relatively independent of operating system and hardware platform, thereby various application and developments are become more efficient, makes the opening of product and portability stronger.Application software is relatively independent of hardware platform, is used to carry out the various service functions that service provider provides, as electronic program guides (EPG), quasi-video request program (NVOD), video request program (VOD), high-speed datacasting, Internet access and condition reception etc.
Integrated high definition digital television machine hardware is made up of high-frequency tuner, QAM/QPSK/OFDM channel demodulator, information source data transmission stream (TS) demodulation multiplexer, MPEG-2 decoder, video encoder, audio frequency PCM decoder, embedded type CPU, memory module and interface circuit, cable modem (CM) module and Conditional Access Module etc.High-frequency tuner is used to receive the radiofrequency signal from digital TV network, finishes channel-decoding by the QAM/QPSK/OFDM channel demodulator, demodulates to comprise the mpeg 2 transport stream (TS) of looking audio frequency and other data messages from carrier wave.Generally comprise a plurality of video-voice frequency flows and some data messages in the transport stream.The transmission flow demultiplexing device is used to distinguish different programs, extracts corresponding video-voice frequency flow and data flow, and it is output as MPEG-2 and looks audio frequency and flow (ES) and payload user data substantially.MPEG-2 decoder and corresponding parsing software are used for the reduction of digital information.For pay TV, Conditional Access Module is also implemented descrambling to video-voice frequency flow, and adopts the smart card (Smart Card) that contains identification user and book keeping operation function, normally watches to guarantee validated user.The MPEG-2 decoder is used for the decompression of video/audio signal.And provide the multichannel sterego audio program.The cable modem module is made up of a two-way tuner, descending QAM/QPSK/OFDM demodulator, up QPSK/QAM modulator and MAC controller (MAC), and it has all functions of cable modem.Embedded type CPU and memory module are used for storage and operating software system, and each hardware module is controlled.Interface circuit provides abundant external interface, comprises USB (universal serial bus) USB, HSSI High-Speed Serial Interface 1394, Ethernet interface, RS232/RS485, IDE hard-disk interface, looks audio interface etc.
The utility model content
The utility model technical issues that need to address are, at the existing digital TV receiving apparatus, when its received signal, be unable to do without outside set set-top box, be primarily aimed at simulated television, and adopt the CVBS or the Y/C interface of simulation to interconnect between set-top box and the simulated television; Its definition is lower, and it also exists system flexibility poor, and defectives such as extended capability difference in order to overcome these defectives, design a kind of integrated high definition digital television machine.
In order to reach this purpose, realize that by the following technical solutions incorporate high definition digital television machine is divided into vision signal decoding and the visual two parts of video information.Wherein, the vision signal decoded portion is the front-end processing unit of digital TV terminal, mainly finishes functions such as Digital Television demodulation, channel-decoding, source coding and user's channel selection.Information visualization partly is the signal processing and the indicative control unit of digital TV terminal, and multi-standard video decoding, the digital video of mainly finishing digital video preliminary treatment, TV signal show functions such as processing and failure diagnosis.Wherein, signal kinds is based on the digital RF signal of CATV, satellite, ground network.The signal system is the Digital Television of compatible NTSC, SECAM, PAL television system.Signal standards is based on the Digital Television of 720P and the 1080i of DVB-C, DVB-S, DVB-T.
The beneficial effects of the utility model are, this incorporate high definition digital television machine, can receive the Digital Television high-frequency signal of 720P, 1080I, adopt the digital television signal of DSP technical finesse 720P, 1080I, interface data between vision signal decoding and the visual two parts of video information satisfies ITU656 digital video standard form, can drive TFT-LCD display screen from 5 cun to 30 cun, PDP display screen can be driven, the requirement of high definition digital television program reproducing can be satisfied from 30 cun to 64 cun.
Description of drawings
The integrated high definition digital television machine frame of Fig. 1 figure
Fig. 2 is vision signal decoding block diagram
Fig. 3 is the visual block diagram of video information
Embodiment
With reference to Fig. 1, represent this integrated high definition digital television machine frame figure, incorporate high definition digital television machine can be divided into vision signal decoding and the visual two parts of video information.With reference to Fig. 2, be the utility model vision signal decoding block diagram, the vision signal decoded portion is the front-end processing unit of digital TV terminal, mainly finishes functions such as digital RF demodulation, channel-decoding, source coding and user's channel selection.With reference to Fig. 3, be expressed as the visual block diagram of video information, information visualization partly is the signal processing and the indicative control unit of digital TV terminal, and multi-standard video decoding, the digital video of mainly finishing digital video preliminary treatment, TV signal show functions such as processing and failure diagnosis.
Claims (2)
1, a kind of integrated high definition digital television machine, can be divided into vision signal decoding and the visual two parts of video information, radiofrequency signal at first enters the vision signal decoded portion, the YUV signal of the ITU656 interface that is obtained then enters the visual part of video information, it is characterized in that: the vision signal decoded portion comprises Digital Television tuner, MPEG-2 decoder, SDRAM, FLASH, cable modem module; The visual part of video information comprises video display chip, FLASH, button and remote control, panel display screen; Interface data between vision signal decoding and the visual two parts of video information satisfies ITU656 digital video standard form.
2, integrated high definition digital television machine according to claim 1 is characterized in that: the panel display screen of the visual part of digital information adopts 5 cun to 30 cun TFT-LCD display screen or from 30 cun to 64 cun PDP display screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200500352U CN2800665Y (en) | 2005-01-10 | 2005-01-10 | Integrative high definition digital TV set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200500352U CN2800665Y (en) | 2005-01-10 | 2005-01-10 | Integrative high definition digital TV set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2800665Y true CN2800665Y (en) | 2006-07-26 |
Family
ID=36843147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005200500352U Expired - Fee Related CN2800665Y (en) | 2005-01-10 | 2005-01-10 | Integrative high definition digital TV set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2800665Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101420540B (en) * | 2007-10-26 | 2011-11-09 | 瑞昱半导体股份有限公司 | Digital television system having liquid crystal television controller and digital television back-end controller |
| CN104539774A (en) * | 2014-08-29 | 2015-04-22 | 北京九天利建信息技术有限公司 | Smart phone with built-in Beidou short message and Beidou positioning functions |
| CN105744315A (en) * | 2014-12-10 | 2016-07-06 | 深圳Tcl数字技术有限公司 | Method and system for obtaining electronic program menus |
-
2005
- 2005-01-10 CN CNU2005200500352U patent/CN2800665Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101420540B (en) * | 2007-10-26 | 2011-11-09 | 瑞昱半导体股份有限公司 | Digital television system having liquid crystal television controller and digital television back-end controller |
| CN104539774A (en) * | 2014-08-29 | 2015-04-22 | 北京九天利建信息技术有限公司 | Smart phone with built-in Beidou short message and Beidou positioning functions |
| CN105744315A (en) * | 2014-12-10 | 2016-07-06 | 深圳Tcl数字技术有限公司 | Method and system for obtaining electronic program menus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060726 |