CN100445931C - Audiovisual signal transfering-receiving provessing device - Google Patents

Audiovisual signal transfering-receiving provessing device Download PDF

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Publication number
CN100445931C
CN100445931C CNB2004100058672A CN200410005867A CN100445931C CN 100445931 C CN100445931 C CN 100445931C CN B2004100058672 A CNB2004100058672 A CN B2004100058672A CN 200410005867 A CN200410005867 A CN 200410005867A CN 100445931 C CN100445931 C CN 100445931C
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China
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signal
audio
digital
bus interface
treating apparatus
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Expired - Fee Related
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CNB2004100058672A
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Chinese (zh)
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CN1658128A (en
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林勇达
戴明火
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YUANGANG SCIENCE AND TECHNOLOGY Co Ltd
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YUANGANG SCIENCE AND TECHNOLOGY Co Ltd
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Abstract

The present invention relates to a sound image signal transmission and processing device which comprises a sound image decoder, a bridge and bus interfaces, wherein the bus interfaces comprise a PCMCIA bus interface, a Card Bus bus interface or an Express card bus interface; the sound image decoder is used for receiving corresponding analog image signals and analog sound signals and correspondingly outputting first digital image signals and first digital sound signals; the bridge is used for receiving the first digital image signals and the first digital sound signals and respectively outputting second digital image signals and second digital sound signals, which conform to the specification of one bus interface, and the signals are output to a computer by one bus interface corresponding to the bus interface specification.

Description

Audio-visual signal passes and connects treating apparatus
Technical field
The present invention passes relevant for a kind of audio-visual signal and connects treating apparatus, and particularly passes relevant for a kind of audio-visual signal that the analog picture signal that received and analoging sound signal is decoded as data image signal and digital audio signal and exports computing machine to and connect treating apparatus.
Background technology
In the epoch now that development in science and technology is maked rapid progress, computing machine has become a part indispensable in modern's the daily life.Because computing machine can only be play the digital sound image signal, the simulated television audio-visual signal that causes present TV station to export can't directly be play on computers.So some mechanism just develops audio-visual signal biography and connects treating apparatus, the simulated television audio-visual signal is encoded to the digital sound image signal that computing machine can be play.
The widely used audio-visual signal of institute passes and connects treating apparatus for for example TV card (TVtuner card) or title image extraction card (TV capture card) on the market at present, can allow the user watch TV signal on computer screen by TV card.Yet general TV card all is a pci interface, mainly is to be applied on the desktop PC, and it does not have the function of hot plug (hot plug).On the other hand, comparatively novel at present a kind of TV card is the CardBus interface, be mainly used on the mobile computer, as following shown in Figure 1, though it possesses the hot plug function, but its means in processing signals are to utilize hardware-compressed (hardware encode) mode, and therefore the nextport hardware component NextPort that is adopted is more relatively, and cost improves many relatively.
Please refer to Fig. 1, the traditional audio-visual signal of its expression passes the circuit block diagram that connects treating apparatus.In Fig. 1, the audio-visual signal biography connects treating apparatus 10 and comprises an acoustic image scrambler (video ﹠amp; Audio encoder, AV encoder) 18, one CardBus bus interface (bus interface), 13, one image decoder (decoder) 11, voice decoder 16, a detuner (tuner) 15, a multiplexer (multiplexer) 17 and one speech simulation/digital quantizer (analogy/digital converter, ADC) 26.Wherein, image decoder 11 can be a Philips SAA7113 demoder, and speech simulation/digital quantizer 12 can be the AKM5355 analog/digital converter, and acoustic image scrambler 18 can be a FujitsuMB86393A Mpeg2 scrambler.In addition, detuner 15 can be the detuner that Sony company is produced, and voice decoder 16 can be the AN5833SAP demoder.
Detuner 15 is in order to receiving a simulated television audio-visual signal T, and exported an analog picture signal Va and a simulated sound intermediate-freuqncy signal Aa according to this in separating timing.Image decoder 11 is in order to receiving analog picture signal Va, and exports a data image signal Vd according to this to acoustic image scrambler 18.Voice decoder 16 is in order to reception analog intermediate frequency voice signal Aa, and the one right voice signal AaR1 of simulation of decoding output according to this and simulates left voice signal AaL1 to multiplexer 17.
Image decoder 11 can receive an analog picture signal that comes from videocorder, as a simulation S picture signal Vas or a simulation V picture signal Vav.Multiplexer 17 can receive a right voice signal AaR2 of simulation and the left voice signal AaL2 of a simulation corresponding to simulation S picture signal Vas or simulation V picture signal Vav that this videocorder is exported.Image decoder 11 can receive simulation S picture signal Vas or simulation V picture signal Vav, and exports a digital S picture signal Vds or a digital V picture signal Vdv according to this.Multiplexer 17 is simulated left voice signal AaL to speech simulation/digital quantizer 12 according to the right voice signal AaR1 of simulation and the left voice signal AaL1 of simulation or right voice signal AaR2 of foundation simulation and the left voice signal AaL2 of simulation to export a right voice signal AaR of simulation and.Speech simulation/digital quantizer 12 is simulated right voice signal AaR and the left voice signal AaL of simulation in order to receive, and exports a digital audio signal Ad according to this to acoustic image scrambler 18.
Acoustic image scrambler 18 receives data image signal Vd and digital audio signal Ad and encodes, and exports a digital sound image signal X according to this, as a Mpeg2 audio-visual signal.In addition, acoustic image scrambler 18 can receive digital audio signal Ad, digital S picture signal Vds or digital V picture signal Vdv and encode, and exports another digital sound image signal Y according to this, as another Mpeg2 audio-visual signal.Acoustic image scrambler 18 is sent to computing machine 14 with digital sound image signal X or Y via pcmcia bus interface 13, and as mobile computer, at this moment, computing machine 14 can store or play digital sound image signal X or Y.
From the above, the audio-visual signal biography connects treating apparatus 10 and must raw data such as analog picture signal and analoging sound signal (raw data) can be encoded into the digital sound image signal and export computing machine 14 to by several nextport hardware component NextPorts such as image decoder 11, voice decoder 16, speech simulation/digital quantizer 11 and acoustic image scramblers 18.Yet the number that connects treating apparatus 10 applied nextport hardware component NextPorts owing to the audio-visual signal biography is more, and the source difference of each nextport hardware component NextPort, and causing audio-visual signal to pass the production cost that connects treating apparatus 10 will relatively increase many.
Summary of the invention
In view of this, purpose of the present invention is exactly to provide a kind of audio-visual signal biography to connect treating apparatus.The design that it is decoded as the analog picture signal that received and analoging sound signal data image signal and digital audio signal and exports computing machine to, apply to PCMCIA, CardBus or Express Card bus interface fully for the digital signal high speed transmission abilities of raw data (raw data) such as data image signal, digital audio signal, digital sound image signal and digital broadcast signal for example, and be applied to the high arithmetic capability that computing machine is encoded to data image signal and digital audio signal the digital sound image signal.Therefore, can reduce the number of nextport hardware component NextPort used in the present invention, and reduce many production costs.
According to purpose of the present invention, propose a kind of audio-visual signal biography and connect treating apparatus, comprise an acoustic image demoder, a bridge and a bus interface, wherein bus interface comprises PCMCIA, CardBus or ExpressCard bus interface.The acoustic image demoder is in order to receiving a corresponding analog picture signal and an analoging sound signal, and exports corresponding one first data image signal and one first digital audio signal according to this.Bridge is in order to receive first data image signal and first digital audio signal, and output meets one second data image signal and one second digital audio signal of a bus interface specification respectively, with via a bus interface that should the bus interface specification is exported to computing machine.
According to another object of the present invention, propose a kind of audio-visual signal biography and connect treating apparatus, comprise a bridge and a bus interface, wherein bus interface comprises PCMCIA, CardBus or Express Card bus interface.Bridge is in order to receiving one first numerical digit audio-visual signal, and converts the first digital sound image signal to meet a bus interface specification one second digital sound image signal, with via a bus interface that should the bus interface specification is exported to computing machine.
According to a further object of the present invention, propose a kind of audio-visual signal biography and connect treating apparatus, comprise a bridge and a bus interface, wherein bus interface comprises PCMCIA, CardBus or Express Card bus interface.Bridge is in order to receiving one first digital broadcast signal, and converts first digital broadcast signal to meet a bus interface specification one second digital broadcast signal, with via a bus interface that should the bus interface specification is exported to computing machine.
Description of drawings
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, a preferred embodiment cited below particularly, and conjunction with figs. are described in detail as follows:
Fig. 1 represents that traditional audio-visual signal passes the circuit block diagram that connects treating apparatus.
Fig. 2 represents to pass the circuit block diagram that connects treating apparatus according to the audio-visual signal of one embodiment of the invention.
The drawing reference numeral explanation
10,20: audio-visual signal passes and connects treating apparatus
11: image decoder
12: speech simulation/digital quantizer
The 13:CardBus bus interface
14,24: computing machine
15,25,26: detuner
16: voice decoder
17: multiplexer
18: the acoustic image scrambler
21: the acoustic image demoder
22: bridge
23: bus interface
Embodiment
Please refer to Fig. 2, its expression passes the circuit block diagram that connects treating apparatus according to the audio-visual signal of one embodiment of the invention.In Fig. 2, the audio-visual signal biography connects treating apparatus 20 and comprises an acoustic image demoder (video﹠amp; Audio decoder, AV decoder) 21, one bridge (bridge) 22, a bus interface (businterface) 23 and detuner (tuner) 25 and 26.In the present invention, bus interface 23 is PCMCIA, CardBus or Express Card bus interface.
Detuner 25 comes from the simulated television audio-visual signal T of antenna (antenna) or cable (cable) in order to receive one, and is separated timing in quilt and export an analog picture signal Va and an analoging sound signal Aa according to this.Detuner 26 is in order to receive an analog fm that comes from antenna or cable (frequencymodulation, FM) broadcast singal B, and exported an analog broadcast signal Aab according to this in separating timing.
Acoustic image demoder 21 receives analog broadcast signal Aab, and exports a digital broadcast signal Adb according to this to bridge 22.In addition, acoustic image demoder 21 receives corresponding analog picture signal Va and analoging sound signal Aa, and exports a corresponding data image signal Vd and a digital audio signal Ad according to this to bridge 22.Wherein, analoging sound signal Aa can comprise a right voice signal of simulation and the left voice signal of a simulation.In one embodiment, acoustic image demoder 21 can be decoded as analoging sound signal Aa right voice signal of at least one simulation and the left voice signal of a simulation.Then, acoustic image demoder 21 is with the right voice signal of the simulation of being decoded and simulate left voice signal and be converted to a digital left and right sides voice signal AdLR, and exports bridge 22 to.
Bridge 22 is in order to receive digital broadcast signal Adb and/or corresponding data image signal Vd and the digital audio signal Ad that acoustic image demoder 21 is exported, and convert thereof into the digital broadcast signal Adb of the bus interface specification that meets bus interface 23 and/or meet the data image signal Vd and the digital audio signal Ad of a bus interface specification, to export computing machine 24 to via bus interface 23, wherein, computing machine 24 is a desktop PC for example, one mobile computer, one laptop computer or a palmtop computer, preferably be applied on the mobile computer, and bus interface specification PCMCIA for example, CardBus or Express Card bus interface specification.Computing machine 24 receives corresponding data image signal Vd and digital audio signal Ad and encodes, and produces a digital sound image signal according to this, as the Mpeg2 audio-visual signal.At this moment, computing machine 24 can store or play coded digital sound image signal.In addition, computing machine 24 can receive digital broadcast signal Adb and storage or the broadcast that bus interface 23 is exported.
Situation when the above is simulating signal for the signal source, it must be converted to digital signal through acoustic image demoder 21, yet, if the signal source is digital signal, for example digital sound image signal D and/or digital broadcast signal E, then do not need this moment through 21 decodings of acoustic image demoder, connect treating apparatus 20 with bridge 22 direct digital sound image signal D of reception and/or digital broadcast signal E so audio-visual signal passes.Wherein, digital sound image signal D can be a transport stream (transport stream, TS) for example any compressed digital sound image signal of the digital sound image signal of audio-visual signal, a Mpeg2 audio-visual signal or other any pattern.Digital sound image signal D and/or digital broadcast signal E that bridge 22 is converted to the bus interface specification that meets bus interface 23 with the digital sound image signal D that received and/or digital broadcast signal E are to export computing machine 24 to via bus interface 23.Then, computing machine 24 can store or play digital sound image signal D and/or the digital broadcast signal E that is received.
Acoustic image demoder 21 can receive one and come from a corresponding analog picture signal and the analoging sound signal of simulated sound as output unit, and simulated sound can be holder for TV playing, digital camera, digital camera camera, videocorder, VCD player or DVD player as output unit.Wherein, the analog picture signal that simulated sound is exported as output unit can be a simulation S picture signal Vas or a simulation V picture signal Vav, comprises a right voice signal AaR of simulation and the left voice signal AaL of a simulation at least with respect to the analoging sound signal of simulating S picture signal Vas or simulation V picture signal Vav.Right voice signal AaR of 21 pairs of simulations that received of acoustic image demoder and the left voice signal AaL of simulation decode, and export a digital left and right sides voice signal AdLR according to this to bridge 22.In addition, simulation S picture signal Vas that 21 pairs of acoustic image demoders are received or simulation V picture signal Vav decode, and export digital S picture signal Vds or digital V picture signal Vdv according to this to bridge 22.Bridge 22 is converted to the corresponding digital signal of the bus interface specification that meets bus interface 23 respectively with the digital left and right sides voice signal AdLR that is received, digital S picture signal Vds or digital V picture signal Vdv, to export computing machine 24 to via bus interface 23.At last, after machine is handled as calculated, computing machine 24 can store or play the digital left and right sides voice signal AdLR that is received, digital S picture signal Vds or digital V picture signal Vdv.
Yet those skilled in the art can also understand technology of the present invention and not be confined to this that for example, acoustic image demoder 21 more can comprise a picture decoding unit and one speech simulation/digital conversion unit.Wherein, the picture decoding unit is in order to receiving all analog picture signals, and exports corresponding data image signal according to this to bridge 22.Speech simulation/digital conversion unit is in order to receiving all analoging sound signals or analog broadcast signal, and exports corresponding digital audio signal or digital broadcast signal according to this to bridge 22.
Because for example the frequency range of PCMCIA, CardBus or Express Card bus interface is very big and transmission speed is also very fast for bus interface 23 of the present invention, make bus interface 23 very successfully to export raw data (rawdata) such as data image signal, digital audio signal, digital sound image signal and digital broadcast signal to computing machine 24, can't cause the transmission delay (delay) of raw data.In addition, computing machine 24 can utilize its arithmetic capability, and data image signal and the digital audio signal compressed encoding that is received become the digital sound image signal, is applied to the high computing effect of computing machine 24 itself fully.Therefore, can reduce the audio-visual signal biography and connect the number for the treatment of apparatus 20 employed nextport hardware component NextPorts, and reduce many production costs.
The disclosed audio-visual signal of the above embodiment of the present invention passes and connects treating apparatus, the design that it is decoded as the analog picture signal that received and analoging sound signal data image signal and digital audio signal and exports computing machine to, apply to the high speed transmission abilities of PCMCIA/CardBus/Express Card bus interface fully, and to be applied to computing machine be the high arithmetic capability of digital sound image signal with data image signal and digital audio signal compressed encoding for raw data.Therefore, can reduce the number of nextport hardware component NextPort used in the present invention, and reduce many production costs.
In sum; though the present invention with a preferred embodiment openly as above; right its is not in order to limit the present invention; any those skilled in the art; under the situation that does not break away from the spirit and scope of the present invention; can carry out various changes and modification, so protection scope of the present invention is as the criterion when looking the claim restricted portion that is proposed.

Claims (19)

1. an audio-visual signal passes and connects treating apparatus, comprising:
One acoustic image demoder in order to receiving a corresponding analog picture signal and an analoging sound signal, and is exported corresponding one first data image signal and one first digital audio signal according to this; And
One bridge, in order to receive this first data image signal and this first digital audio signal, and output meets one second data image signal and one second digital audio signal of a bus interface specification respectively, with via a bus interface that should the bus interface specification is exported to a computing machine;
Wherein, this bus interface comprises CardBus or Express Card bus interface.
2. audio-visual signal as claimed in claim 1 passes and connects treating apparatus, and wherein this computing machine is encoded into one the 3rd digital sound image signal with this second data image signal and this second digital audio signal that is received.
3. audio-visual signal as claimed in claim 2 passes and connects treating apparatus, and wherein the 3rd digital sound image signal is a Mpeg2 audio-visual signal.
4. audio-visual signal as claimed in claim 1 passes and connects treating apparatus, wherein this acoustic image demoder is decoded as right voice signal of at least one simulation and the left voice signal of a simulation with this analoging sound signal that is received, and this acoustic image demoder is simulated right voice signal and this with this of being decoded and simulated left voice signal and be converted to a digital left and right sides voice signal and export this bridge to.
5. audio-visual signal as claimed in claim 1 passes and connects treating apparatus, and wherein this audio-visual signal passes and connects treating apparatus and also comprise:
One detuner in order to receiving a simulated television audio-visual signal, and is exported this analog picture signal and this analoging sound signal to this acoustic image demoder according to this in separating timing.
6. audio-visual signal as claimed in claim 1 passes and connects treating apparatus, and wherein this analog picture signal is a simulation S picture signal, and this analoging sound signal comprises a right voice signal of simulation and the left voice signal of a simulation corresponding to this simulation S picture signal at least.
7. audio-visual signal as claimed in claim 1 passes and connects treating apparatus, and wherein this analog picture signal is a simulation V picture signal, and this analoging sound signal comprises a right voice signal of simulation and the left voice signal of a simulation corresponding to this simulation V picture signal at least.
8. audio-visual signal as claimed in claim 1 passes and connects treating apparatus, wherein this bridge also comprises one the 4th digital sound image signal that can receive from the digital signal source that is different from this acoustic image demoder, and convert the 4th digital sound image signal to meet this bus interface specification one the 5th digital sound image signal, to export this computing machine to via this bus interface.
9. audio-visual signal as claimed in claim 8 passes and connects treating apparatus, and wherein the 4th digital sound image signal comprises the digital sound image signal of a transport stream audio-visual signal, a Mpeg2 audio-visual signal or other any pattern.
10. audio-visual signal as claimed in claim 1 passes and connects treating apparatus, wherein this bridge also comprises one first digital broadcast signal that can receive from the digital signal source that is different from this acoustic image demoder, and convert this first digital broadcast signal to meet this bus interface specification one second digital broadcast signal, to export this computing machine to via this bus interface.
Connect treating apparatus 11. audio-visual signal as claimed in claim 1 passes, wherein this acoustic image demoder also comprises reception one analog broadcast signal, and exports a digital broadcast signal according to this to this bridge.
Connect treating apparatus 12. audio-visual signal as claimed in claim 11 passes, wherein this audio-visual signal passes and connects treating apparatus and also comprise:
One detuner, in order to receiving an analog fm broadcast singal, and exported this analog broadcast signal according to this in separating timing.
13. audio-visual signal as claimed in claim 1 passes and connects treating apparatus, wherein this computing machine is a desktop PC or a mobile computer.
Connect treating apparatus 14. audio-visual signal as claimed in claim 1 passes, wherein this analoging sound signal comprises a left voice signal of simulation and the right voice signal of a simulation.
15. an audio-visual signal passes and connects treating apparatus, comprise a bridge, this bridge is in order to receive one first digital sound image signal, and this first digital sound image signal converted to the one second digital sound image signal that meets a bus interface specification, with via a bus interface that should the bus interface specification is exported to a computing machine, wherein this bus interface comprises CardBus or Express Card bus interface.
16. audio-visual signal as claimed in claim 15 passes and connects treating apparatus, wherein this first digital sound image signal comprises the digital sound image signal of a transport stream audio-visual signal, a Mpeg2 audio-visual signal or other any pattern.
17. audio-visual signal as claimed in claim 15 passes and connects treating apparatus, wherein this computing machine is a desktop PC or a mobile computer.
18. an audio-visual signal passes and connects treating apparatus, comprise a bridge, this bridge is in order to receive one first digital broadcast signal, and this first digital broadcasting audio-visual signal converted to one second digital broadcast signal that meets a bus interface specification, with via a bus interface that should the bus interface specification is exported to a computing machine, wherein this bus interface comprises CardBus or Express Card bus interface.
19. audio-visual signal as claimed in claim 18 passes and connects treating apparatus, wherein this computing machine is a desktop PC or a mobile computer.
CNB2004100058672A 2004-02-20 2004-02-20 Audiovisual signal transfering-receiving provessing device Expired - Fee Related CN100445931C (en)

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CN100592765C (en) * 2007-05-30 2010-02-24 图诚科技股份有限公司 Extension device with television video input and output function

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