CN103281573B - Multifunctional visual audio signal transmitting/receiving device - Google Patents
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Abstract
The present invention relates to a kind of Multifunctional visual audio signal transmitting/receiving device, comprise: PCMCIA? ExpressCard HSSI High-Speed Serial Interface module, image processing apparatus, audio decoder module, external data connecting interface and digital television signal receiver module, described HSSI High-Speed Serial Interface module receives vision signal and the audio signal of portable electronic terminal transmission, and vision signal and audio signal are forwarded to image processing apparatus and audio decoder module to process respectively, vision signal after process and audio signal are sent to display equipment and speaker unit by external data connecting interface, digital television signal receiver module will receive and digital TV broadcast signal after processing is sent to portable electronic terminal to play by described HSSI High-Speed Serial Interface module.By the present invention, other work of portable electronic terminal can not be affected and the video and audio material stored by the external played device plays portable electronic terminal of various form.
Description
Technical field
The present invention relates to a kind of signal transmitting and receiving field, particularly relate to a kind of Multifunctional visual audio signal transmitting/receiving device.
Background technology
Along with the progress of science and technology and providing of human material's life, the portable electronic terminal comprising notebook computer, smart mobile phone, palmtop PC, personal digital assistant PDA etc. enters huge numbers of families.Can see everywhere and watch audio-visual content by portable electronic terminal, watch e-book, carry out the amusement operations such as 3D game, and these amusements in the past operate the fixed-site be only limited to as family, office.The development of portable electronic terminal has brought great pleasure of the senses, and the product around portable electronic terminal emerges in an endless stream.
But, the function ratio of the existing product around portable electronic terminal is more single, such as, the digital television broadcasting program of DVB standard is watched only by USB (universal serial bus) USB interface, or, only the audio-video frequency content that portable electronic terminal is just being play is forwarded by cable and synchronously play on outside playback equipment, or a kind of product is only for a kind of playback equipment of specific type of data interface.Like this, when user uses this series products, often need in the face of not compatible, the technical problem that function is not enough, have impact on the normal use of user, and if solve described technical problem by multiple such product for subsequent use time, user is again in the face of heavier financial burden.
Therefore, need a kind of Multifunctional visual audio signal transmitting/receiving device, existing framework increases a small amount of module, realization can watch digital television broadcasting content, can not affect again and when portable electric appts normally works, use external equipment to play video and audio material on described portable electric appts, meanwhile, the external played equipment of various data-interface can also be suitable for, thus improve the compatibility of video/audio signal R-T unit, meet the multiple user demand of user.
Summary of the invention
In order to solve the problem, the invention provides one both by television interface module digital television signal to be forwarded on portable electronic terminal and to play, the video/audio signal that portable electronic terminal can be sent again carries out the Multifunctional visual audio signal transmitting/receiving device play on the playing device with various types of digital interface by process, overcome that existing video/audio signal R-T unit structure is simple, the defect of function singleness, existing framework increases a small amount of module and realizes Multifunctional visual audio signal reception and transmission, realize a tractor serves several purposes.Like this, on the one hand, user need not carry too much financial burden just can obtain Multifunctional visual audio signal transmission-receiving function, on the other hand, overcomes the technological deficiency that unsolved compatibility is inadequate in the past.
According to an aspect of the present invention, provide a kind of Multifunctional visual audio signal transmitting/receiving device, comprise PCMCIAExpressCard HSSI High-Speed Serial Interface module, image processing apparatus, audio decoder module, external data connecting interface and digital television signal receiver module, described PCMCIAExpressCard HSSI High-Speed Serial Interface module receives vision signal and the audio signal of portable electronic terminal transmission, and described vision signal and described audio signal are forwarded to described image processing apparatus and described audio decoder module to process respectively, finally use external data connecting interface that the vision signal after process and audio signal are sent to external-connection displayer device and speaker unit, described digital television signal receiver module receives and processes digital TV broadcast signal, and the digital TV broadcast signal after process is sent to portable electronic terminal to play by PCMCIAExpressCard HSSI High-Speed Serial Interface module.
More specifically, described Multifunctional visual audio signal transmitting/receiving device comprises further: PCMCIAExpressCard HSSI High-Speed Serial Interface module, connects portable electronic terminal, receives vision signal and the audio signal of the transmission of described portable electronic terminal; The USB serial data signal that connection universal serial bus USB hub forwards to obtain usb hub, outputs to described portable electronic terminal by described USB serial data signal; Image processing apparatus, there is peripheral element high speed interconnect PCIE interface, described PCMCIAExpressCard HSSI High-Speed Serial Interface module is connected by described PCIE interface, to receive described vision signal, and image procossing is carried out to the described vision signal received, to obtain image frame data, wherein said image procossing comprises picture construction, image rendering and image decoding; Video memory device, for the vision signal that image processing apparatus described in buffer memory receives, is convenient to described image processing apparatus and reads the vision signal of described buffer memory to carry out image procossing; Usb hub, connects described PCMCIAExpressCard HSSI High-Speed Serial Interface module to obtain described audio signal, and forwards described audio signal; Connect digital television signal receiver module and forward described digital television signal receiver module export USB serial data signal; Audio decoder module, connects described usb hub to receive the audio signal forwarded, decodes, decoded audio signal is sent to interface modular converter to described audio signal; Interface modular converter, connect described image processing apparatus and audio decoder module to receive described image frame data and described decoded audio signal respectively, described image frame data and described decoded audio signal are converted to the audio-video signal of the data cube computation form that applicable user selects, this data cube computation form is DVI, HDMI, DisplayPort or DiiVA; User selects module, connects described interface modular converter, receives the data cube computation form that user selects, and by the data cube computation formatted output of selection to described interface modular converter, described user-selected number is key-press input mode according to the concrete mode of linking format; External data connecting interface, for connecting outside playing audio/video, and under the control of described interface modular converter, exports the audio-video signal of DVI, HDMI, DisplayPort or DiiVA form; Digital television signal receiver module, connects usb hub, is received the digital TV broadcast signal of DVB standard, and convert described digital TV broadcast signal to USB serial data signal by antenna or wire cable; Wherein, the external LCD LCD device of external data connecting interface and speaker unit are with difference displaying video content and audio content, the resolution of described LCD LCD device is any one in 160 × 128,384 × 320,640 × 480 or 1024 × 600, and described speaker unit is left and right loud speaker; Wherein, described digital television signal receiver module comprises digital tuning module, demodulation module, demultiplexing module, audio frequency and video decompression module, serial data modular converter; Described digital tuning module, becomes intermediate frequency, filtering, amplification, analog-to-digital conversion operation to the digital TV broadcast signal received; Described demodulation module, can connect described digital tuning module, and carries out deconvolution intertexture, solution RS coding, descrambling operations to the output signal of described digital tuning module, output transport stream; Described demultiplexing module, connects described demodulation module, and carries out de-multiplex operation to the transport stream that described demodulation module exports, output sound video data; Described audio frequency and video decompression module, connects described demultiplexing module, and decompresses to the audio, video data that described demultiplexing module exports; Described serial data modular converter, connects described audio frequency and video decompression module, and the audio, video data after the decompression export described audio frequency and video decompression module is converted to described USB serial data signal; Wherein, this interface modular converter adopts on-site programmable gate array FPGA chip to realize, described fpga chip is the StratixVGT chip of ALTERA company, adopt 28 nanometer technologies, have 234,720 high performance self-adaption logic module ALM, 512 adjustable DSP module of precision (18x18), 2,560 memory modules, the transceiver of 28.05G speed; Wherein, at least one of described usb hub also in circumscribed USB interface mouse, USB interface keyboard, USB interface printer, USB interface memory.
More specifically, described Multifunctional visual audio signal transmitting/receiving device comprises further: the feedback information that described interface modular converter obtains the detection of the interface format of described outside playing audio/video according to described external data connecting interface, determines its data cube computation form that will change.
More specifically, described Multifunctional visual audio signal transmitting/receiving device comprises further: the transport stream that described demodulation module exports 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, described load comprises the MPEG-2 data of 184 bytes, specifically being distributed as of three other bytes in described packet header, 1 transmission error code indication bit position, 1 initial indication bit position of clean data cell, 1 is transmitted priority bit position, 13 bag identifier PID bits, 2 are transmitted scrambling control bits position, control bit position, 2 self adaptation districts and 4 continuous counter bits.
More specifically, described Multifunctional visual audio signal transmitting/receiving device comprises further: described portable electronic terminal is the one in notebook computer, smart mobile phone, palmtop PC, personal digital assistant PDA.
Accompanying drawing explanation
Below with reference to accompanying drawing, embodiment of the present invention are described, wherein:
The block diagram of the Multifunctional visual audio signal transmitting/receiving device that Fig. 1 illustrates according to an embodiment of the present invention.
Wherein, 1, PCMCIAExpressCard HSSI High-Speed Serial Interface module; 2, image processing apparatus; 3, video memory device; 4, usb hub; 5, user selects module; 6, audio decoder module; 7, digital television signal receiver module; 8, interface modular converter; 9, external data connecting interface.
Embodiment
Below with reference to accompanying drawings the embodiment of Multifunctional visual audio signal transmitting/receiving device of the present invention is described in detail.
Fig. 1 illustrates the block diagram of the Multifunctional visual audio signal transmitting/receiving device illustrated according to an embodiment of the present invention.Wherein both by television interface module digital television signal was forwarded on portable electronic terminal and play, the video/audio signal that portable electronic terminal can be sent again comprises by processing the Multifunctional visual audio signal transmitting/receiving device carrying out playing on the playing device with various types of digital interface: PCMCIAExpressCard HSSI High-Speed Serial Interface module 1, image processing apparatus 2, audio decoder module 6, external data connecting interface 9 and digital television signal receiver module 7, described PCMCIAExpressCard HSSI High-Speed Serial Interface module 1 receives vision signal and the audio signal of portable electronic terminal transmission, and described vision signal and described audio signal are forwarded to described image processing apparatus 2 and described audio decoder module 6 to process respectively, finally use external data connecting interface 9 that the vision signal after process and audio signal are sent to external-connection displayer device and speaker unit, described digital television signal receiver module 7 receives and processes digital TV broadcast signal, and the digital TV broadcast signal after process is sent to portable electronic terminal to play by PCMCIAExpressCard HSSI High-Speed Serial Interface module 1.Wherein, described Multifunctional visual audio signal transmitting/receiving device also comprises: PCMCIAExpressCard HSSI High-Speed Serial Interface module 1, connects portable electronic terminal, receives vision signal and the audio signal of the transmission of described portable electronic terminal; The USB serial data signal that connection universal serial bus USB hub 4 forwards to obtain usb hub 4, outputs to described portable electronic terminal by described USB serial data signal; Image processing apparatus 2, there is peripheral element high speed interconnect PCIE interface, described PCMCIAExpressCard HSSI High-Speed Serial Interface module 1 is connected by described PCIE interface, to receive described vision signal, and image procossing is carried out to the described vision signal received, to obtain image frame data, wherein said image procossing comprises picture construction, image rendering and image decoding; Video memory device 3, for the vision signal that image processing apparatus described in buffer memory 2 receives, is convenient to described image processing apparatus 2 and reads the vision signal of described buffer memory to carry out image procossing; Usb hub 4, connects described PCMCIAExpressCard HSSI High-Speed Serial Interface module 1 to obtain described audio signal, and forwards described audio signal; Connect digital television signal receiver module 7 and forward described digital television signal receiver module 7 export USB serial data signal; Audio decoder module 6, connects described usb hub 4 to receive the audio signal forwarded, decodes, decoded audio signal is sent to interface modular converter 8 to described audio signal; Interface modular converter 8, connect described image processing apparatus 2 and audio decoder module 6 to receive described image frame data and described decoded audio signal respectively, described image frame data and described decoded audio signal are converted to the audio-video signal of the data cube computation form that applicable user selects, this data cube computation form is DVI, HDMI, DisplayPort or DiiVA; User selects module 5, connects described interface modular converter 8, receives the data cube computation form that user selects, and by the data cube computation formatted output of selection to described interface modular converter 8, described user-selected number is key-press input mode according to the concrete mode of linking format; External data connecting interface 9, for connecting outside playing audio/video, and under the control of described interface modular converter 8, exports the audio-video signal of DVI, HDMI, DisplayPort or DiiVA form; Digital television signal receiver module 7, connects usb hub 4, is received the digital TV broadcast signal of DVB standard, and convert described digital TV broadcast signal to USB serial data signal by antenna or wire cable; Wherein, the external LCD LCD device of external data connecting interface and speaker unit are with difference displaying video content and audio content, the resolution of described LCD LCD device is any one in 160 × 128,384 × 320,640 × 480 or 1024 × 600, and described speaker unit is left and right loud speaker; Wherein, described digital television signal receiver module 7 comprises digital tuning module, demodulation module, demultiplexing module, audio frequency and video decompression module, serial data modular converter; Described digital tuning module, becomes intermediate frequency, filtering, amplification, analog-to-digital conversion operation to the digital TV broadcast signal received; Described demodulation module, can connect described digital tuning module, and carries out deconvolution intertexture, solution RS coding, descrambling operations to the output signal of described digital tuning module, output transport stream; Described demultiplexing module, connects described demodulation module, and carries out de-multiplex operation to the transport stream that described demodulation module exports, output sound video data; Described audio frequency and video decompression module, connects described demultiplexing module, and decompresses to the audio, video data that described demultiplexing module exports; Described serial data modular converter, connects described audio frequency and video decompression module, and the audio, video data after the decompression export described audio frequency and video decompression module is converted to described USB serial data signal; Wherein, this interface modular converter 8 adopts on-site programmable gate array FPGA chip to realize, described fpga chip is the StratixVGT chip of ALTERA company, adopt 28 nanometer technologies, have 234,720 high performance self-adaption logic module ALM, 512 adjustable DSP module of precision (18x18), 2,560 memory modules, the transceiver of 28.05G speed; Wherein, described usb hub 4 goes back at least one in circumscribed USB interface mouse, USB interface keyboard, USB interface printer, USB interface memory.
Wherein, ExpressCard technology is a kind of new technical standard announced spring in 2003 by PCMCIA association.ExpressCard standard is promised to undertake provides thinner to desktop computer and notebook computer, sooner, lighter expansion module, this module can be inserted its system to add the hardware capabilitys such as such as memory, wired or wireless address card and safety device by consumer easily.Be from the maximum different of conventional P C card technique, ExpressCard technology adopts up-to-date PCIExpress and USB2.0 interface, the connection of hot swap type is directly provided between ancillary equipment and host computer system, and does not need to set up a bridging chip between the chipset and slot of system.Although ExpressCard technology has used the numerous characteristics in existing PC card technique, the former has reached and has more preferably balanced between the multifrequency natures such as overall dimensions, performance, reliability, adaptability, hot plug and Lookup protocol.Have many differences between ExpressCard standard and PC card: 1. size, ExpressCard module is physically being about the half size of PC card, and weight is also lighter simultaneously; 2. transmission speed, what ExpressCard module adopted is the serial data interface being better than PC card PCI parallel bus interface, and it improves the speed that bus data transmits while reducing interface desired signal number; 3. cost, with regard to its system and Machine Design mode, ExpressCard technology has lower manufacturing cost; 4. more power saving, the power consumption of ExpressCard module is by lower than traditional PC card; 5. ease for use, owing to eliminating the trouble opening cabinet, ExpressCard module makes as desktop computer installation New Parent is more easy.And make to exchange peripheral hardware easily by hot plug mode between notebook computer and desktop computer.
Wherein, video memory, is also called frame buffer, and its effect is used to the process of storage display card chip and crosses or be about to the rendering data of extraction.As the internal memory of computer, video memory is used to the parts storing graphical information to be processed.The picture that we see on a display screen is made up of pixel one by one, and each pixel controls its brightness and color with 4 to the 32 even data of 64, these data must be preserved by video memory, transfer to display chip and CPU allotment again, finally operation result is converted into images outputting on display.Video memory is the same with mainboard internal memory, perform storage function, but its storage to similarly being the information that video card outputs to each pixel on display.Video memory is the very important part of video card, can data be saved in video memory after display chip processes data, then by RAMDAC(digital to analog converter) from video memory, read out data and digital signal is converted to analog signal, out by screen display finally.In senior graphics acceleration card, video memory is not only used for store graphics data, but also is shown chip and is used for carrying out 3D functional operation.In the senior display chips such as nVIDIA, develop " GPU " (Graphics Processing Unit) parallel with CPU.The high density computings such as " T & L " (distortion and illumination) are completed on video card by GPU, have more increased the weight of the dependence to video memory thus.Due to video memory role on video card, the speed of obvious video memory and bandwidth directly have influence on the bulk velocity of video card.Video memory experienced by multiple developing stage as memory is also the same with mainboard internal memory, even can say that the development of video memory is more more active than mainboard internal memory, and have more kind and type.
Wherein, FPGA(FieldProgrammableGateArray), i.e. field programmable gate array, he is the product further developed on the basis of the programming devices such as PAL, GAL, CPLD.He occurs as a kind of semi-custom circuit in application-specific integrated circuit (ASIC) (ASIC) field, has both solved the deficiency of custom circuit, overcomes again the shortcoming that original programming device gate circuit number is limited.FPGA have employed logical cell array LCA(LogicCellArray) such concept, inside comprises configurable logic blocks CLB(ConfigurableLogicBlock), export input module IOB(InputOutputBlock) and interconnector (Interconnect) three parts.Field programmable gate array (FPGA) is programming device, and as compared to conventional logic circuit and gate array (as PAL, GAL and CPLD device), FPGA has different structures.FPGA utilizes small-sized look-up table (16 × 1RAM) to realize combinational logic, each look-up table is connected to the input of a d type flip flop, trigger drives other logical circuits again or drives I/O, thus constitute the basic logic unit module that not only can realize combination logic function but also can realize sequential logic function, these intermodules utilize metal connecting line to be connected to each other or are connected to I/O module.The logic of FPGA loads programming data by internally static storage cell and realizes, store value in a memory cell and determine connecting mode between the logic function of logical block and each module or between module and I/O, and the function finally determined achieved by FPGA, FPGA allows unlimited programming.
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 Multifunctional visual audio signal transmitting/receiving device comprises further: the feedback information that described interface modular converter 8 obtains the detection of the interface format of described outside playing audio/video according to described external data connecting interface 9, determines its data cube computation form that will change.
In addition, described Multifunctional visual audio signal transmitting/receiving device comprises further: the transport stream that described demodulation module exports 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, described load comprises the MPEG-2 data of 184 bytes, specifically being distributed as of three other bytes in described packet header, 1 transmission error code indication bit position, 1 initial indication bit position of clean data cell, 1 is transmitted priority bit position, 13 bag identifier PID bits, 2 are transmitted scrambling control bits position, control bit position, 2 self adaptation districts and 4 continuous counter bits.
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.
In addition, described Multifunctional visual audio signal transmitting/receiving device comprises further: described portable electronic terminal is the one in notebook computer, smart mobile phone, palmtop PC, personal digital assistant PDA.
Adopt Multifunctional visual audio signal transmitting/receiving device of the present invention, greatly improve the video/audio signal R-T unit that original structure is single, successfully solve only to receive not send out or only send out and do not receive, what portable electric appts and both the external played equipment being connected portable electric appts were play is same audio-visual content, cannot the technological deficiency of external played equipment of compatible multiple different pieces of information interface, user only needs use video/audio signal R-T unit, just can realize both by television interface module digital television signal being forwarded on portable electronic terminal playing, the video/audio signal that portable electronic terminal can be sent again carries out the multiple functions play on the playing device with various types of digital interface by process, user does not need to bear too much financial burden simultaneously.
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 (4)
1. a Multifunctional visual audio signal transmitting/receiving device, is characterized in that, described device comprises:
PCMCIAExpressCard HSSI High-Speed Serial Interface module, image processing apparatus, audio decoder module, external data connecting interface and digital television signal receiver module, described PCMCIAExpressCard HSSI High-Speed Serial Interface module receives vision signal and the audio signal of portable electronic terminal transmission, and described vision signal and described audio signal are forwarded to described image processing apparatus and described audio decoder module to process respectively, finally use external data connecting interface that the vision signal after process and audio signal are sent to external-connection displayer device and external loudspeaker device, described digital television signal receiver module receives and processes digital TV broadcast signal, and the digital TV broadcast signal after process is sent to portable electronic terminal to play by PCMCIAExpressCard HSSI High-Speed Serial Interface module,
Also comprise:
Described PCMCIAExpressCard HSSI High-Speed Serial Interface module also connects portable electronic terminal, receives vision signal and the audio signal of the transmission of described portable electronic terminal; Also connection universal serial bus USB hub is to obtain the USB serial data signal of usb hub forwarding, and described USB serial data signal is outputted to described portable electronic terminal;
Described image processing apparatus also has peripheral element high speed interconnect PCIE interface, described PCMCIAExpressCard HSSI High-Speed Serial Interface module is connected by described PCIE interface, to receive described vision signal, and image procossing is carried out to the described vision signal received, to obtain image frame data, wherein said image procossing comprises picture construction, image rendering and image decoding;
Video memory device, for the vision signal that image processing apparatus described in buffer memory receives, is convenient to described image processing apparatus and reads the vision signal of described buffer memory to carry out image procossing;
Usb hub, connects described PCMCIAExpressCard HSSI High-Speed Serial Interface module to obtain described audio signal, and forwards described audio signal; Connect digital television signal receiver module and forward described digital television signal receiver module export USB serial data signal;
Described audio decoder module also connects described usb hub to receive the audio signal forwarded, and decodes, decoded audio signal is sent to interface modular converter to described audio signal;
Interface modular converter, connect described image processing apparatus and audio decoder module to receive described image frame data and described decoded audio signal respectively, described image frame data and described decoded audio signal are converted to the audio-video signal of the data cube computation form that applicable user selects, this data cube computation form is DVI, HDMI, DisplayPort or DiiVA;
User selects module, connects described interface modular converter, receives the data cube computation form that user selects, and by the data cube computation formatted output of selection to described interface modular converter, described user-selected number is key-press input mode according to the concrete mode of linking format;
Described external data connecting interface also connects outside playing audio/video, and under the control of described interface modular converter, exports the audio-video signal of DVI, HDMI, DisplayPort or DiiVA form;
Described digital television signal receiver module also connects usb hub, is received the digital TV broadcast signal of DVB standard, and convert described digital TV broadcast signal to USB serial data signal by antenna or wire cable;
Wherein, the external LCD LCD device of described external data connecting interface and speaker unit are with difference displaying video content and audio content, the resolution of described LCD LCD device is any one in 160 × 128,384 × 320,640 × 480 or 1024 × 600, and described speaker unit is left and right loud speaker;
Wherein, described digital television signal receiver module comprises digital tuning module, demodulation module, demultiplexing module, audio frequency and video decompression module, serial data modular converter; Described digital tuning module becomes intermediate frequency, filtering, amplification, analog-to-digital conversion operation to the digital TV broadcast signal received; Described demodulation module can connect described digital tuning module, and carries out deconvolution intertexture, solution RS coding, descrambling operations, with output transport stream to the output signal of described digital tuning module; Described demultiplexing module connects described demodulation module, and carries out de-multiplex operation, with output sound video data to the transport stream that described demodulation module exports; Described audio frequency and video decompression module connects described demultiplexing module, and decompresses to the audio, video data that described demultiplexing module exports; Described serial data modular converter connects described audio frequency and video decompression module, and the audio, video data after the decompression export described audio frequency and video decompression module is converted to described USB serial data signal;
Wherein, this interface modular converter adopts on-site programmable gate array FPGA chip to realize, described fpga chip is the StratixVGT chip of ALTERA company, adopt 28 nanometer technologies, have 234,720 high performance self-adaption logic module ALM, 512 adjustable DSP module of precision (18x18), 2,560 memory modules, the transceiver of 28.05G speed;
Wherein, at least one of described usb hub also in circumscribed USB interface mouse, USB interface keyboard, USB interface printer, USB interface memory.
2. Multifunctional visual audio signal transmitting/receiving device as claimed in claim 1, is characterized in that:
The feedback information that described interface modular converter obtains the detection of the interface format of described outside playing audio/video according to described external data connecting interface, determines its data cube computation form that will change.
3. Multifunctional visual audio signal transmitting/receiving device as claimed in claim 1, is characterized in that:
The transport stream that described demodulation module exports 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, described load comprises the MPEG-2 data of 184 bytes, specifically being distributed as of three other bytes in described packet header, 1 transmission error code indication bit position, 1 initial indication bit position of clean data cell, 1 is transmitted priority bit position, 13 bag identifier PID bits, 2 are transmitted scrambling control bits position, control bit position, 2 self adaptation districts and 4 continuous counter bits.
4. Multifunctional visual audio signal transmitting/receiving device as claimed in claim 1, is characterized in that:
Described portable electronic terminal is the one in notebook computer, smart mobile phone, palmtop PC, personal digital assistant PDA.
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| CN105577671B (en) * | 2015-12-30 | 2019-02-01 | 上海芃矽半导体技术有限公司 | The transmission method and Transmission system of audio signal and vision signal |
| CN107079101A (en) * | 2016-09-30 | 2017-08-18 | 深圳市大疆创新科技有限公司 | A kind of processing method of flight view data, system and ground end equipment |
| CN108459665A (en) * | 2018-02-22 | 2018-08-28 | 福建捷联电子有限公司 | A kind of display having storage device |
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| CN101247490A (en) * | 2008-03-03 | 2008-08-20 | 中山大学深圳研究院 | Portable off-site video relay broadcasting system |
| CN101616293A (en) * | 2008-06-25 | 2009-12-30 | 国民技术股份有限公司 | Be used for portable terminal and transmit the wireless transceiving component of audio/video signal |
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| CN101079973A (en) * | 2006-12-12 | 2007-11-28 | 腾讯科技（深圳）有限公司 | A method and system for simultaneously playing multi-channel TV signals |
| CN101247490A (en) * | 2008-03-03 | 2008-08-20 | 中山大学深圳研究院 | Portable off-site video relay broadcasting system |
| CN101616293A (en) * | 2008-06-25 | 2009-12-30 | 国民技术股份有限公司 | Be used for portable terminal and transmit the wireless transceiving component of audio/video signal |
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| CN103281573A (en) | 2013-09-04 |
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