CN1118187C - Digital full-media television with satellite network - Google Patents

Abstract

The present invention relates to a full medium television of a digitized satellite network. The present invention is characterized in that the television ccomprises a chip AV7100, a memory DRAM, various advanced input devices, various bidirectional interfaces used at present, a high sound quality loudspeaker as an acoustic appliance, a high-definition television as a display appliance, and a remote controller, wherein the memory DRAM is bidirectionally connected with an IEEE1394 digital data port of the chip, the advanced input devices and the bidirectional interfaces are connected with a controller of a 1394 connecting layer of the chip through an interface circuit, the high sound quality loudspeaker and the high-definition television are connected with the audio signal output terminal and the video signal output terminal of the chip, and the remote controller is connected with the chip. The full medium television can be connected with various advanced input appliances, optical disks, the Internet, RS232 serial interfaces and telephone lines to be used as a multimedia device; meanwhile, the full medium television can receive various high definition digital television programs.

Description

Digital full-media television with satellite network

The present invention relates to a kind of digital full-media television with satellite network, belong to the digital full-media television with satellite network mechanism technology for making field that satellite television and family expenses multimedia technology combine.

The Chinese invention patent that application number is called " television reception and PC series microcomputer shows dual-purpose display " for the 96101718.X name has proposed a kind ofly TV signal and family expenses multi-media signal to be sent to the output of Voice ﹠ Video device so that domestic TV and family expenses microcomputer multimedia are combined into the imagination of a system after selector switch is selected, and its principle schematic is asked for an interview Fig. 1.Wherein, the 1st, TV signal receives and separator, and the 2nd, PC vision signal introducing device, the 3rd, signal selecting switch, the 5th, audio frequency output, the 4th, video signal display apparatus.It constitutes thinking for development full-media television machine provides basic system, but its shortcoming is: it can not receive digitized high definition satellite TV signal, it or not the digital to television machine, simultaneously TV signal receive and separator 1 and PC vision signal introducing device 2 still be unrealized integrated, the automation of also still being unrealized of the switching between TV signal and the family expenses multi-media signal.Application number is 97100540.0 and is called that the Chinese invention patent of " system that utilizes the existing digital broadcast equipment transmission of high distinctness TV " has proposed a kind of emission of the full digital tv of channels such as satellite cable, ground, the system configuration and operation principle of reception of comprising, particularly the comprehensive decoder of satellite digital downstream tones, video information wherein provides technical basis for the reception that realizes digital full-media television with satellite network, and Fig. 2 is its operation principle schematic diagram.Wherein 6 is demodulator circuits, the 7th, and demodulation multiplexer, the 8th, ordinary numbers television video decoding deck, the 9th, image also connects device, and the 10th, D/A conversion and preprocessor, these can be collectively referred to as modulator-demodulator, the 4th, high definition TV display device, the 5th, high tone quality loudspeaker sound equipment, the 11st, audio decoder.Its effect is that a downward signal of satellite of process audio, video data compression is behind wireless receiving, decompress and demultiplexing, form four tunnel common digital television signals, again through decoding, image and connect with D/A conversion and produce video analog signal for 4 outputs of high definition TV display device, the audio signal that forms behind the demultiplexing is then delivered to high tone quality loudspeaker sound equipment 5 and is carried out sound and export after audio decoder 11 decodings.The set-top box of the common employing in order to receive the digitlization satellite television at present is consistent with it on operation principle.It is made of modulator-demodulator, buffer memory, central processing unit and ROM of having various software such as operating system, e-mail software, browser software, audio decoder and TCP/IP network-driven etc.Wherein, the speed of modulator-demodulator is that the standard memory of 33.6kbps.RAM is 2M, saves as 1M in the flash ROM.Audio frequency characteristics wherein, the speed of modulator-demodulator, the type of software interface and mounting receptacle all can need and state-of-art and deciding by the user.This set-top box scenario is by the interim measure of simulated television to the full digital tv transition.Its shortcoming is that set-top box is placed on outside the television set individually, on performance systems soft ware function, be restricted, thereby cost is higher relatively, more since from simulated television to the full digital tv transition, if from counting now, Europe, the U.S. need 8 years, and China will reach 15 years, therefore set-top box is moved on to and go design in the television set and develop its cost of digital satellite television receiver relatively very high, can not put on market prematurely.In fact, current existing fewer companies has obtained success to set-top box on moving on in the television set.What release as Proton company be the AT-29001 product of home interior, and it has, and to be built in the interior speed of television set be modulator-demodulator, loud speaker and the Web-browsing software of 33.6kbps.Its supporting telephone number memory, dialing and specific function such as speaker-phone automatically.It also has the PC function, can on TV screen, show online information synchronously, and the dummy keyboard on the also available remote controller function screen, input character data also provides a Wireless Keyboard simultaneously.What standard television is the built-in set-top box that Acorn company of another family provides (UniView set-top box) can take over, and also can be the user functions such as the Internet access, phone, e-mail fax, television program listing are provided.This shows that they have all realized the multimedia combination of digitlization satellite television and PC to a certain extent.But their common drawback at first is that cost height, the market risk are big, so most levels that still rest on the set-top box solution, secondly, also multimedia function incomplete for ubiquity, no Web TV function is exported, is gone into problem such as the incomplete or technology of equipment is not advanced thereby can't make product enter family fast and widely.

The object of the present invention is to provide functions such as a kind of cost is low, correspondence with foreign country and output, go into equipment advanced person, complete being used for digitlization satellite network TV and the full TV of the family expenses multimedia display PC full matchmaker of incorporate digitlization satellite network with Internet network insertion and Web TV, transmitted in both directions.Its theory diagram is as shown in Figure 3: the 12nd, and input unit, the 13rd, bidirectional interface, the 14th, full media system Digital Signal Processing controller, the 15th, electronic switch, in order to control is TV signal or multi-media signal output, realizes with software, imports as dummy keyboard.The 4th, high definition TV display device, the 5th, high tone quality loudspeaker sound equipment.Fig. 4 is the schematic diagram of Fig. 3.Wherein, full media system Digital Signal Processing controller 14 is with CPU or/and the DSPS chipset is to advocate peace to be equipped with all kinds of memories compositions that store the software of television video and various special functions such as audio signal processing function, video coding function and similar browser.

The invention is characterized in: it contains chip AV7100, with the two-way DRAM memory that is connected of the IEEE1394 digital data port of chip AV7100, the high definition TV display device 4 that the input unit 12 that links to each other with the input of the 1394 articulamentum controllers of chip AV7100 by interface circuit and bidirectional interface 13 and the vision signal D/A output of chip AV7100 link to each other through electronic switch (15), high tone quality loudspeaker sound equipment 5 that links to each other through electronic switch (15) with the audio signal D/A output of chip AV7100 and the remote controller 16 that links to each other with chip AV7100.Described input unit 12 has: keyboard input or scanning input, digital still camera input or phonetic entry or Wireless Keyboard input, or infrared remote control input and their combination in any, these output eight devices and interface circuit belong to prior art, no longer describe in detail.Described bidirectional interface 13 has: the interface of RS232 serial data bidirectional interface, the telephone wire that meets modulator-demodulator Modem, the wireless signal transceiver of the wireless telephone system of registering one's residence, one or more smart card and the CD, the VCD that link to each other with chip AV7100 by driver, CVD, DVD etc.Detail as per Fig. 5 and Fig. 4.

Use proof: it has reached its intended purposes.

In order in conjunction with the embodiments the present invention to be done detailed describing below, existing as follows the employed accompanying drawing number of present specification and title, brief introduction:

Fig. 1: the principle schematic of " television reception and PC series microcomputer show dual-purpose display ".

Fig. 2: the principle schematic of satellite downstream tones, the comprehensive decoder of vision signal.

Fig. 3: the theory diagram of digital full-media television with satellite network.

The schematic diagram of Fig. 4: Fig. 3.

Fig. 5: the system architecture diagram of digital full-media television with satellite network.

Embodiment:

Ask for an interview Fig. 5.AV7100 series be a kind of be that core is added RAM/ROM, software, patrolled to seize with interface circuit, the integrated chipset that forms of mixed signal circuit (A/D, D/A) and the DSPS technology that combines other system, supporting technology and form with digital signal processor based on digital signal processor (DSP) technology.This AV7100 series audio-video signal processor, it meets DVB and DSS standard, is the DSPS chipset that integrates audio frequency, video, code stream demodulation multiplexer, MPEG-2 image and mpeg audio or C-3 audio decoder and screen display (OSD) device that at first occurs.AV7100 wherein is the product of the first batch of listing of AV7000 series, and it is integrated, and the flash RAMRISC processor of 32-bit, advanced graphics accelerator, demultiplexer, conditional access are conciliate cryptographic block and MPEG-2 Video Decoder, mpeg audio decoder and NTSC/PAL television encoder.It also is equipped with an IEEE1394 digital data port and uses for connecting 1394 articulamentum controllers.It extremely is suitable for digital satellite system (DSS), makes the decoding of satellite downstream tones, vision signal and the usefulness of screen display.Its simulation macrocell has D/A, A/D, and wider; Structurally wide than Harvard scope; Direct Digital communication DMA function is arranged; Input, output also are multichannel; Command system adopts CISC; Have and interrupt and the interior emulation of sheet; Multiplication time＜the 20ns that adds up; Required clock cycle＜the 1us of each multiplying; Memory has RAM/ROM/EPROM/ external, and memory also can be constructed again, and its capacity is at 64K-16Mbit or bigger; Its operand/clock number is 5.It to digital Signal Processing speed than the fast 10-15 of best PC doubly; Arithmetic speed wants big 30-100 doubly; Reached the per second computing at present more than 2,000,000,000 times.Simultaneously the cost of satellite downstream tones vision signal processing capacity is greatly descended.With similar the also having of AV7100 chip functions: ST15500, second generation high speed TriMedia, second generation Mpact multimedia processor, also available powerful CPU and JAVA chipset constitute.CPU as with general standard then mixes the AV110 audio decoder, and AV220 Video Decoder and AV420 television encoder get final product.On software and technical compatibility thereof, full media system Digital Signal Processing controller can compatible Windows, Macintoch, DOS and other operating system; Insert and the e-mail function aspects at Internet, can insert by TPC/IP, PPP, PAP and CHAP protocol of I nternet and Intranet are arranged, also have Web browser, Email User, also support to comprise nearly all wireless standard of GSM.A plurality of PC card card slots can peg graft honeycomb, wireless and wire line MODEM.To the television broadcasting of various different systems and existing various multimedia input modes and CD, VCD, CVD, DAD etc. all have compatibility at present.On Image Compression, it is to various image compression specification compatibilities such as MPEG, IPEG, H261, G728.

In this example, what high definition TV display device 4 adopted is the TFTLED flat-panel screens, other also available as LCD, CRT monitor.What high tone quality loudspeaker sound equipment 5 adopted is mega bass device in the machine, certainly also can external high-end audio equipment.

This shows that the present invention can realize the various advanced functions of present high definition high tone quality colour TV, also have the various advanced persons' that present each microcomputer multimedia device had input unit 12 and bidirectional interface 13 simultaneously.

Claims (5)

1. a digital full-media television with satellite network contains digital signal processor, central processing unit and have accordingly various general, the memory of special-purpose software and high definition TV display device, high tone quality loudspeaker sound equipment is characterized in that: it contains chip AV7100, the two-way DRAM memory that is connected of digital data port with the IEEE1394 of chip AV7100, by having input unit (12) and the bidirectional interface (13) that interface circuit is connected with the input of the 1394 articulamentum controllers of chip AV7100, the high definition TV display device (4) that links to each other through electronic switch (15) with the vision signal D/A output of chip AV7100, high tone quality loudspeaker sound equipment (5) that links to each other through electronic switch (15) with the audio signal D/A output of chip AV7100 and the remote controller (16) that links to each other with chip AV7100 control end.

2. digital full-media television with satellite network according to claim 1 is characterized in that: described input equipment has: keyboard input or scanning input or digital still camera input or phonetic entry or Wireless Keyboard input or infrared remote control input and their any input combination.

3. digital full-media television with satellite network according to claim 1 is characterized in that: described bidirectional interface (13) has RS232 serial data bidirectional interface, meet the wireless transmitter smart card of the telephone wire of modulator-demodulator Modem, the wireless telephone system of registering one's residence and the CD, the VCD that link to each other with chip AV7100 by driver, the interface of CVD, DVD etc.

4. digital full-media television with satellite network according to claim 1 is characterized in that: described chip AV7100 used chip STI5500 or second generation high speed Tri Media processor or second generation Mpact multimedia processor replace.

5. digital full-media television with satellite network according to claim 1 is characterized in that: described chip AV7100 can replace with powerful CPU and JAVA chipset.

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