CN103313001B - Digital Television simulated television integrated receiver - Google Patents
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Abstract
The present invention relates to a kind of Digital Television simulated television integrated receiver, comprising: digital television receiving apparatus and simulated television receiving system, to receive digital TV broadcast signal and anolog TV signals respectively.By the present invention, a remote controller or a set of control can be used by the reception of key control logarithm word television broadcasting signal or analog tv broadcast signal, and ensure the reception continuity of TV signal program when Digital TV Receiving channel quality is poor.
Description
Technical field
The present invention relates to a kind of television reception field, particularly relate to a kind of Digital Television simulated television integrated receiver.
Background technology
TV, being the image frame of transmission activity and the electronic technology of audio signal and equipment, i.e. television receiver, is also important broadcast and video communication instrument.TV can the visual pattern of transmission activity immediately.Similar with film, TV utilizes the persistence of vision effect of human eye to manifest the rest image of a frame frame gradual change, forms visual live image.After television system transmitting terminal is the signal of telecommunication each fine fraction of scenery by brightness and chroma conversion, order transmits.The brightness of each fine fraction and colourity is manifested to reappear view picture original image by corresponding geometric position at receiving terminal.Various countries TV signal scanning standard and channel broadband incomplete same, distinguish by the suggestion Latin alphabet of Consultative Committee on International Radio (CCIR) (CCIR).
TV is the important converter tools of people, when user stays indoors, can understand various entertainment all over the world needed for it and gio signal by TV.Along with the progress of technology, development traversal black and white television set, color television set, digital television, the HD digital television set etc. of TV, classify roughly, main still simulated television and the large class of digital television two, correspondingly, there is different transmission standards and standard, such as, for simulated television, there is NTSC, PAL, SECAM multiple types sample, for digital television, there is the transmission standard such as DVB standard, ATSC standard.Digital television has that Program Transport for simulated television is many, programme content advantage more clearly, but simulated television has low price, promotes advantage widely, is also difficult to eliminate for the moment.But existing receiver usually can only the TV signal of primary recipient one type, or can receive the signal of two types, but remote controller and button need backup two parts, to control the operation to anolog TV signals and digital television signal respectively.Meanwhile, existing digital television receiver is when receive channel is of poor quality, and the digital television program content received is incoherent, have impact on normally watching of user.
Therefore, need a kind of Digital Television simulated television integrated receiver, compliant digital television receiver and analog television receiver, use a set of remote control and key system can the operation of control figure television receiver again can the operation of control simulation television receiver, simultaneously, for Digital TV Receiving bad channel quality, then program watches incoherent defect, introduce two Deplexing apparatus, first solve basic digital TV transmission stream TS flow and normal digital TV TS flow, then the continuation basic digital TV TS stream of demultiplexing or normal digital TV TS is selected to flow according to Digital TV Receiving channel quality quality, the two corresponding programme content is identical, thus ensure that watching continuously of digital television program.
Summary of the invention
In order to solve the problem, the invention provides a kind of Digital Television simulated television integrated receiver using same remote controller or same set of button to take into account the control operation of digital television signal and anolog TV signals, on the one hand, overcome existing television receiver poor compatibility, program watches the discontinuous technical problem of content, a set of remote control or key system is used to control two kinds of receivers, decrease operation control module, facilitate the operation of user, on the other hand, overcome Digital TV Receiving bad channel and cause the incoherent technical problem of program receiving, take into full account that the use sense of user is subject to.
According to an aspect of the present invention, provide a kind of Digital Television simulated television integrated receiver, comprise digital television receiving apparatus and simulated television receiving system to receive digital TV broadcast signal and anolog TV signals respectively.
More specifically, described Digital Television simulated television integrated receiver comprises further: in described digital television receiving apparatus: digital tuning module, becomes intermediate frequency, filtering, amplification, analog-to-digital conversion operation to the digital TV broadcast signal received, channel quality detection module, according to the quality of the current receive channel quality of the intensity feedback of the digital TV broadcast signal received, and exports corresponding receive channel quality control signal, demodulation module, described digital tuning module can be connected, and deconvolution intertexture, solution RS coding, descrambling operations are carried out to the output signal of described digital tuning module, output transport stream TS flows, described TS stream comprises normal digital TV TS and flows and basic digital TV TS stream, normal digital TV TS flows identical with the digital television program content in basic digital TV TS stream, but resolution is different, described normal digital TV TS flows and basic digital TV TS stream is multiplexed in same TS stream at digital TV transmitter end, first demultiplexing module, connects described demodulation module and carries out demultiplexing with the TS stream exported by described demodulation module, exports described normal digital TV TS and flows and basic digital TV TS stream, second demultiplexing module, connect described channel quality detection module and described first demultiplexing module, when the receive channel quality control signal received is less than or equal to predetermined threshold, de-multiplex operation is carried out to basic digital TV TS stream, export basic digital audio-video data, when the receive channel quality control signal received is greater than predetermined threshold, de-multiplex operation is carried out to normal digital TV TS stream, export normal digital audio, video data, audio frequency and video decompression module, connects described second demultiplexing module, and decompresses to the audio, video data exported after described second demultiplexing module demultiplexing, carries out corresponding audio-video frequency content broadcasting for loud speaker and display, first receiver module, receives the control signal that user passes through remote controller or key-press input, first control module, connect the control signal that described first receiver module exports to receive described first receiver module, and the control signal that described first receiver module exports is identified, if described control signal is the control command starting simulated television receiving system, then control energy supply control module opens the power supply to described simulated television receiving system, described simulated television receiving system starts and starts normal work, if described control signal is the control command starting digital television receiving apparatus, then control the power supply of energy supply control module disconnection to described simulated television receiving system, described simulated television receiving system cuts out, instruction transformation module, start when simulated television receiving system and start normal work, control command in the control signal received by digital television receiving apparatus is converted to the control code to simulated television receiving system, to carry out control operation to simulated television receiving system, all control codes are stored in advance in digital television receiving apparatus, determine all control operations to simulated television receiving system, first sending module, connects described instruction transformation module so that the control code after described conversion is sent to simulated television receiving system, energy supply control module, controls the power supply to simulated television receiving system and digital television receiving apparatus, in described simulated television receiving system: high-frequency tuner, receive anolog TV signals and the anolog TV signals received are carried out High frequency amplification and Frequency mixing processing, non-linear element is passed through in described mixing, anolog TV signals after local oscillation signal and High frequency amplification are mixed, obtains the TV signal after frequency reducing by frequency-selective circuit, in put detection module, connect described high-frequency tuner, receive the TV signal after described frequency reducing, and the TV signal after described frequency reducing is carried out to intermediate frequency amplification, video detection, video are preposition, noise is eliminated and automatic gain process, obtain composite video signal, sound channel processing module, connect described in put detection module, receive described in put detection module export composite video signal, audio signal is resolved from described composite video signal, and carry out putting in sound accompaniment to described audio signal, amplitude limit frequency discrimination and low frequency amplify process, the audio signal after low frequency is amplified process exports to be play for loud speaker, PAL decoder module, connect described in put detection module, receive described in put detection module export composite video signal, from described composite video signal, resolve vision signal to carry out pal mode decoding, export described vision signal corresponding RGB tri-road video data and play for display, synchronous scanning module, connect described in put detection module, receive described in put the composite video signal that detection module exports, and from described composite video signal, parse field sync signal and line synchronizing signal, for controlling the broadcasting of display, second receiver module, connects the control code that described first sending module sends to receive described first sending module, second control module, connects described second receiver module and carries out control operation with the control code received according to the second receiver module to simulated television receiving system.
More specifically, described Digital Television simulated television integrated receiver comprises further: the digital TV broadcast signal that described digital tuning module receives is the digital TV broadcast signal of DVB-T, DVB-C or DVB-S standard.
More specifically, described Digital Television simulated television integrated receiver comprises further: described display is LCD LCD device, its resolution is any one in 160 × 128,384 × 320,640 × 480 or 1024 × 600, and described speaker unit is left and right loud speaker.
More specifically, described Digital Television simulated television integrated receiver comprises further: described TS stream is made up of packet header and load, described packet header comprises a sync byte SYNC1 and three other bytes, described three other bytes are used for traffic identification, scrambling and control information, and described load comprises the MPEG-2 data of 184 bytes.
Accompanying drawing explanation
Below with reference to accompanying drawing, embodiment of the present invention are described, wherein:
The block diagram of the Digital Television simulated television integrated receiver that Fig. 1 illustrates according to an embodiment of the present invention.
Wherein, 1, digital tuning module; 2, channel quality detection module; 3, demodulation module; 4, the first demultiplexing module; 5, the second demultiplexing module; 6, audio frequency and video decompression module; 7, the first receiver module; 8, the first control module; 9, instruction transformation module; 10, the first sending module; 11, energy supply control module; 12, high-frequency tuner; 13, put in detection module, 14, sound channel processing module; 15, PAL decoder module; 16, synchronous scanning module; 17, the second receiver module; 18, the second control module.
Embodiment
Below with reference to accompanying drawings the embodiment of Digital Television simulated television integrated receiver of the present invention is described in detail.
Fig. 1 illustrates the block diagram of the Digital Television simulated television integrated receiver illustrated according to an embodiment of the present invention.The Digital Television simulated television integrated receiver wherein using same remote controller or same set of button to take into account the control operation of digital television signal and anolog TV signals comprises: digital television receiving apparatus and simulated television receiving system are to receive digital TV broadcast signal and anolog TV signals respectively, described digital television receiving apparatus comprises digital tuning module 1, channel quality detection module 2, demodulation module 3, first demultiplexing module 4, second demultiplexing module 5, audio frequency and video decompression module 6, first receiver module 7, first control module 8, instruction transformation module 9, first sending module 10 and energy supply control module 11, described simulated television receiving system comprises high-frequency tuner 12, in put detection module 13, sound channel processing module 14, PAL decoder module 15, synchronous scanning module 16, second receiver module 17 and the second control module 18.Wherein, described Digital Television simulated television integrated receiver also comprises: in described digital television receiving apparatus: digital tuning module 1, becomes intermediate frequency, filtering, amplification, analog-to-digital conversion operation to the digital TV broadcast signal received, channel quality detection module 2, according to the quality of the current receive channel quality of the intensity feedback of the digital TV broadcast signal received, and exports corresponding receive channel quality control signal, demodulation module 3, described digital tuning module 1 can be connected, and deconvolution intertexture, solution RS coding, descrambling operations are carried out to the output signal of described digital tuning module 1, output transport stream TS flows, described TS stream comprises normal digital TV TS and flows and basic digital TV TS stream, normal digital TV TS flows identical with the digital television program content in basic digital TV TS stream, but resolution is different, described normal digital TV TS flows and basic digital TV TS stream is multiplexed in same TS stream at digital TV transmitter end, first demultiplexing module 4, connects described demodulation module 3 and carries out demultiplexing with the TS stream exported by described demodulation module 3, exports described normal digital TV TS and flows and basic digital TV TS stream, second demultiplexing module 5, connect described channel quality detection module 2 and described first demultiplexing module 4, when the receive channel quality control signal received is less than or equal to predetermined threshold, de-multiplex operation is carried out to basic digital TV TS stream, export basic digital audio-video data, when the receive channel quality control signal received is greater than predetermined threshold, de-multiplex operation is carried out to normal digital TV TS stream, export normal digital audio, video data, audio frequency and video decompression module 6, connects described second demultiplexing module 5, and decompresses to the audio, video data exported after described second demultiplexing module 5 demultiplexing, carries out corresponding audio-video frequency content broadcasting for loud speaker and display, first receiver module 7, receives the control signal that user passes through remote controller or key-press input, first control module 8, connect the control signal that described first receiver module 7 exports to receive described first receiver module 7, and the control signal that described first receiver module 7 exports is identified, if described control signal is the control command starting simulated television receiving system, then control energy supply control module 11 opens the power supply to described simulated television receiving system, described simulated television receiving system starts and starts normal work, if described control signal is the control command starting digital television receiving apparatus, then control energy supply control module 11 disconnects the power supply to described simulated television receiving system, described simulated television receiving system cuts out, instruction transformation module 9, start when simulated television receiving system and start normal work, control command in the control signal received by digital television receiving apparatus is converted to the control code to simulated television receiving system, to carry out control operation to simulated television receiving system, all control codes are stored in advance in digital television receiving apparatus, determine all control operations to simulated television receiving system, first sending module 10, connects described instruction transformation module 9 so that the control code after described conversion is sent to simulated television receiving system, energy supply control module 11, controls the power supply to simulated television receiving system and digital television receiving apparatus, in described simulated television receiving system: high-frequency tuner 12, receive anolog TV signals and the anolog TV signals received are carried out High frequency amplification and Frequency mixing processing, non-linear element is passed through in described mixing, anolog TV signals after local oscillation signal and High frequency amplification are mixed, obtains the TV signal after frequency reducing by frequency-selective circuit, in put detection module 13, connect described high-frequency tuner 12, receive the TV signal after described frequency reducing, and the TV signal after described frequency reducing is carried out to intermediate frequency amplification, video detection, video are preposition, noise is eliminated and automatic gain process, obtain composite video signal, sound channel processing module 14, connect described in put detection module 13, receive described in put detection module 13 export composite video signal, audio signal is resolved from described composite video signal, and carry out putting in sound accompaniment to described audio signal, amplitude limit frequency discrimination and low frequency amplify process, the audio signal after low frequency is amplified process exports to be play for loud speaker, PAL decoder module 15, connect described in put detection module 13, receive described in put detection module 13 export composite video signal, from described composite video signal, resolve vision signal to carry out pal mode decoding, export described vision signal corresponding RGB tri-road video data and play for display, synchronous scanning module 16, connect described in put detection module 13, receive described in put the composite video signal that detection module 13 exports, and from described composite video signal, parse field sync signal and line synchronizing signal, for controlling the broadcasting of display, second receiver module 17, connects the control code that described first sending module 10 sends to receive described first sending module 10, second control module 18, connects described second receiver module 17 and carries out control operation with the control code received according to the second receiver module 17 to simulated television receiving system.
Wherein, Digital Television (DigitalTV) is also called DVB-T or digital television, refer to that from studio to all links of launching, transmitting, receiving be all use digital television signal or the signal propagation all to this system to be all the television genre that the binary digit stream by being made up of 0,1 numeric string is propagated, relative with simulated television.Digital Television be one from programme acquisition, program making program transmission until the system end to end of user side processing signals all in a digital manner.Based on broadcast type and " interactive mode " Digital Television of DVB technical standard, adopt advanced user administrative skill can do perfect by the quality of programme content and quantity and bring for user more program to select and better program quality effect, digital television system can transmit multiple business, as liquid crystal-spliced in high definition TV (being abbreviated as " HDTV " or " high definition "), standard definition television (being abbreviated as " SDTV " or " SD "), interactive TV, BSV and data service etc.Compared with simulated television, Digital Television has that picture quality is high, program capacity large (being more than 10 times of analog television transmission passage program capacity) and the effective feature of sound accompaniment.
In addition, described Digital Television simulated television integrated receiver comprises further: the digital TV broadcast signal that described digital tuning module 1 receives is the digital TV broadcast signal of DVB-T, DVB-C or DVB-S standard.
Wherein, DVB is the abbreviation of digital video broadcasting DigitalVideoBroadcasting, is by the Digital Television Open Standard of a series of international recognitions of DVB project maintenance.DVB project is an industrial organization by more than 300 member compositions, it is by european telecommunications standards institute EuropeanTelecommunicationsStandardsInstitute (ETSI), and the joint specialist group JointTechnicalCommittee (JTC) that European electronic standard organizes EuropeanCommitteeforElectrotechnicalStandardization (CENELEC) and European Broadcasting Union EuropeanBroadcastingUnion (EBU) to constitute jointly initiates.These standards freely can be downloaded from ETSI website after registration.1993, international digital video broadcasting tissue (DVB tissue) was set up in Europe.The technology that DVB organization decided is new must be based upon the digital technology in MPEG-2 compression algorithm, must be market oriented digital technology.The aim of DVB to design a general digital television system, and the conversion between this intrasystem various transmission means has the simplest mode, increases versatility as much as possible.Digital television system specification that DVB standard provides complete set, that be applicable to different medium.DVB digital broadcasting transmission system make use of all general television broadcast transmission medium comprising satellite, wired, ground, SMATV, MNDSD.The DVB standard that they are corresponding respectively: DVB-S, DVB-C, DVB-T, DVB-SMATV, DVB-MS and DVB-MC.
In addition, described Digital Television simulated television integrated receiver comprises further: described display is LCD LCD device, its resolution is any one in 160 × 128,384 × 320,640 × 480 or 1024 × 600, and described speaker unit is left and right loud speaker.
Wherein, LCDs, English is commonly referred to as LCD(LiquidCrystalDisplay), be the one belonging to flat-panel screens, for the screen display of television set and computer.LCD display employs two panels polarization material, is liquid crystal solution between which.Electric current rearranges by making crystal during this liquid, to make light cannot through them.Therefore, each crystal, just as shutter, can allow light to pass and can obstruct the light.Scientific and technological information product is all towards the development of light, thin, short, little target at present for liquid crystal display (LCD), and the display product having long history in computer periphery is certainly no exception.Be easy to carry and carrying as under front topic, traditional display mode, as CRT crt display and LED display board etc., is all limited by the factors such as the excessive or power consumption of volume is very huge, cannot reaches the actual demand of user.And the development of lcd technology just in time suits the trend of current information products, be no matter the advantages such as little or zero radiation of right angle display, low power consumption, volume, user can be allowed to enjoy best visual environment.
In addition, described Digital Television simulated television integrated receiver comprises further: described TS stream is made up of packet header and load, described packet header comprises a sync byte SYNC1 and three other bytes, described three other bytes are used for traffic identification, scrambling and control information, and described load comprises the MPEG-2 data of 184 bytes.
Wherein, the MPEG2 form in DVD program is MPEG2-PS, and full name is the full name of ProgramStream, TS is then TransportStream.MPEG2-PS is mainly used in the program with fixing duration of storage, and as DVD film, MPEG-TS is then mainly used in the program transmitted in real time, the TV programme of such as real-time broadcast.The main distinction of these two kinds of forms is, if one will to cut (or being exactly simply corrupted data) before the vob file on DVD, whole file so will be caused to decode, and TV programme whenever turns on television set can decode (watching), so the feature of MPEG2-TS form requires it is all independently to decode from arbitrary fragment of video flowing.
Adopt Digital Television simulated television integrated receiver of the present invention, successfully digital television receiver and simulated television are organically combined, using digital television receiver as main frame, simulated television is as from machine, host computer control is from the Power supply of machine, and in main frame the built-in all operations code from machine, achieve and use a set of remote control or key system just energy control figure television receiver and simulated television, in addition, also successfully solve the poor program that causes of Digital TV Receiving channel and watch discontinuous technical problem, greatly user friendly operation, ensure the seeing and hearing enjoyment that user is good.
Be understandable that, although the present invention with preferred embodiment disclose as above, but above-described embodiment and be not used to limit the present invention.For any those of ordinary skill in the art, do not departing under technical solution of the present invention ambit, the technology contents of above-mentioned announcement all can be utilized to make many possible variations and modification to technical solution of the present invention, or be revised as the Equivalent embodiments of equivalent variations.Therefore, every content not departing from technical solution of the present invention, according to technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent variations and modification, all still belongs in the scope of technical solution of the present invention protection.
Claims (1)
1. a Digital Television simulated television integrated receiver, is characterized in that, described receiver comprises:
Digital television receiving apparatus and simulated television receiving system, to receive digital TV broadcast signal and anolog TV signals respectively,
Also comprise:
In described digital television receiving apparatus:
Digital tuning module, becomes intermediate frequency, filtering, amplification, analog-to-digital conversion operation to the digital TV broadcast signal received;
Channel quality detection module, according to the quality of the current receive channel quality of the intensity feedback of the digital TV broadcast signal received, and exports corresponding receive channel quality control signal;
Demodulation module, described digital tuning module can be connected, and deconvolution intertexture, solution RS coding, descrambling operations are carried out to the output signal of described digital tuning module, output transport stream TS flows, described TS stream comprises normal digital TV TS and flows and basic digital TV TS stream, normal digital TV TS flows identical with the digital television program content in basic digital TV TS stream, but resolution is different, described normal digital TV TS flows and described basic digital TV TS stream is multiplexed in same TS stream at digital TV transmitter end;
First demultiplexing module, connects described demodulation module and carries out demultiplexing with the TS stream exported by described demodulation module, exports described normal digital TV TS and flows and described basic digital TV TS stream;
Second demultiplexing module, connect described channel quality detection module and described first demultiplexing module, when the receive channel quality control signal received is less than or equal to predetermined threshold, de-multiplex operation is carried out to basic digital TV TS stream, export basic digital audio-video data, when the receive channel quality control signal received is greater than predetermined threshold, de-multiplex operation is carried out to normal digital TV TS stream, export normal digital audio, video data;
Audio frequency and video decompression module, connects described second demultiplexing module, and decompresses to the audio, video data exported after described second demultiplexing module demultiplexing, carries out corresponding audio-video frequency content broadcasting for loud speaker and display;
First receiver module, receives the control signal that user passes through remote controller or key-press input;
First control module, connect the control signal that described first receiver module exports to receive described first receiver module, and the control signal that described first receiver module exports is identified, if described control signal is the control command starting simulated television receiving system, then control energy supply control module opens the power supply to described simulated television receiving system, described simulated television receiving system starts and starts normal work, if described control signal is the control command starting digital television receiving apparatus, then control the power supply of energy supply control module disconnection to described simulated television receiving system, described simulated television receiving system cuts out,
Instruction transformation module, start when simulated television receiving system and start normal work, control command in the control signal received by digital television receiving apparatus is converted to the control code to simulated television receiving system, to carry out control operation to simulated television receiving system, all control codes are stored in advance in digital television receiving apparatus, determine all control operations to simulated television receiving system;
First sending module, connects described instruction transformation module so that the control code after described conversion is sent to simulated television receiving system;
Energy supply control module, controls the power supply to described simulated television receiving system and described digital television receiving apparatus;
In described simulated television receiving system:
High-frequency tuner, receive anolog TV signals and the anolog TV signals received are carried out High frequency amplification and Frequency mixing processing, described mixing is by non-linear element, is mixed by the anolog TV signals after local oscillation signal and High frequency amplification, obtains the TV signal after frequency reducing by frequency-selective circuit;
In put detection module, connect described high-frequency tuner, receive the TV signal after described frequency reducing, and the TV signal after described frequency reducing is carried out to intermediate frequency amplification, video detection, video are preposition, noise is eliminated and automatic gain process, obtain composite video signal;
Sound channel processing module, connect described in put detection module, receive described in put detection module export composite video signal, audio signal is resolved from described composite video signal, and carry out putting in sound accompaniment to described audio signal, amplitude limit frequency discrimination and low frequency amplify process, the audio signal after low frequency is amplified process exports to be play for loud speaker;
PAL decoder module, connect described in put detection module, receive described in put detection module export composite video signal, from described composite video signal, resolve vision signal to carry out pal mode decoding, export described vision signal corresponding RGB tri-road video data and play for display;
Synchronous scanning module, connect described in put detection module, receive described in put the composite video signal that detection module exports, and from described composite video signal, parse field sync signal and line synchronizing signal, for controlling the broadcasting of display;
Second receiver module, connects the control code that described first sending module sends to receive described first sending module;
Second control module, connects described second receiver module and carries out control operation with the control code received according to the second receiver module to simulated television receiving system.
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| CN201310178331.XA CN103313001B (en) | 2013-05-14 | 2013-05-14 | Digital Television simulated television integrated receiver |
| CN201510650902.4A CN105208304B (en) | 2013-05-14 | 2013-05-14 | DTV simulated television integrated receiver |
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| CN104639405A (en) * | 2013-11-13 | 2015-05-20 | 冠捷投资有限公司 | Network connection startup method of monitor |
| CN103702196A (en) * | 2013-12-27 | 2014-04-02 | 乐视致新电子科技（天津）有限公司 | Control method and device for work mode |
| CN108156517A (en) * | 2017-12-29 | 2018-06-12 | 广州长嘉电子有限公司 | The method and television set of data flow control are realized based on DLED television sets |
| CN108174263B (en) * | 2017-12-29 | 2020-10-20 | 广州长嘉电子有限公司 | Method and system for realizing analog television signal processing based on COAX technology |
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| CN2909725Y (en) * | 2006-03-24 | 2007-06-06 | 海信集团有限公司 | Digital-analog integrated TV. set |
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| CN1951119A (en) * | 2004-05-03 | 2007-04-18 | 汤姆森研发基金公司 | Method and apparatus enabling fast channel change for DSL system |
| CN2909725Y (en) * | 2006-03-24 | 2007-06-06 | 海信集团有限公司 | Digital-analog integrated TV. set |
| CN101267510A (en) * | 2008-04-29 | 2008-09-17 | 上海广电（集团）有限公司中央研究院 | A digit/analog integrated TV receiving device and digit/analog TV conversion control method |
| CN101426108A (en) * | 2008-10-24 | 2009-05-06 | 深圳市启欣科技有限公司 | Digital analog integrated color television receiving system |
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| CN103313001A (en) | 2013-09-18 |
| CN105208304B (en) | 2016-11-09 |
| CN105208304A (en) | 2015-12-30 |
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