CN1697495A - TV set - Google Patents

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Publication number
CN1697495A
CN1697495A CNA2004100433536A CN200410043353A CN1697495A CN 1697495 A CN1697495 A CN 1697495A CN A2004100433536 A CNA2004100433536 A CN A2004100433536A CN 200410043353 A CN200410043353 A CN 200410043353A CN 1697495 A CN1697495 A CN 1697495A
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CN
China
Prior art keywords
signal
television
audio
europe
video
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Pending
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CNA2004100433536A
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Chinese (zh)
Inventor
黄豪章
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Quanta Computer Inc
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Quanta Computer Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority to CNA2004100433536A priority Critical patent/CN1697495A/en
Publication of CN1697495A publication Critical patent/CN1697495A/en
Pending legal-status Critical Current

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Abstract

The disclosed TV set includes expand module and main circuit board. The expand module is in use for decoding and demodulating the input signal so as to output video/audio signal in fundamental frequency. The main circuit board includes general interface, signal processing unit and microprocessor. The general interface is coupled to the expand module in order to receive video/audio signal in fundamental frequency. Signal processing unit coupled to the general interface carries out video/audio process for video/audio signal in fundamental frequency, and outputs processed signal. The microprocessor is for controlling the signal processing unit, and for controlling the expand module through general interface.

Description

Television set
Technical field
The present invention relates to a kind of television set, particularly relate to a kind of decoding and demodulation function part of moduleization and the television set separated by motherboard on the motherboard.
Background technology
Please refer to Figure 1A, it shows the motherboard circuit structure calcspar of conventional television.Motherboard 100 comprises decode/demodulates unit 110, multiplexer 120, signal processing unit 130 and microprocessor 140.When television set received the broadcast singal Sc of satellite channel, wired or wireless TV programme, the control of microprocessor 140 was accepted in decode/demodulates unit 110, in order to broadcast singal Sc is decoded and demodulation, and exported fundamental frequency video-audio signal Scb according to this.And when receiving a plurality of fundamental frequency video-audio signal Sb of outputs such as DVD CD player and digital camera when television set, microprocessor 140 control multiplexers 120, the fundamental frequency video-audio signal Sb in order to select desire to show exports signal processing unit 130 to.Signal processing unit 130 is accepted the control of microprocessor 140, fundamental frequency video-audio signal Scb or Sb is carried out brightness and chroma separate (Y-C Separation) and the size sound processing such as (Scaling) that stretches, and export display 150 to and shown.
The fundamental frequency video-audio signal Sb that comprises the broadcast singal Sc of cable TV signal, wireless television signal and radio frequency (RF) input signal etc. and comprise synthetic video signal (Composite Video) signal, S terminal video signal (S-Video) signal and color difference signal YCbCr etc. is to be that Europe of analog signal, PAL system is that the U.S. coefficient word signal of analog signal, ATSC system and the Europe of DVB system are digital signal with country and U.S.A of dividing into the NTSC system from different places again.
Yet the problem that TV user often runs into is a simulated television of having bought the NTSC system, can only watch the analog broadcasting program.If want to be upgraded to the digital broadcast program that to watch the ATSC system, watch that perhaps the Europe of other PAL and DVB system is broadcast program, the motherboard 100 that just must more renew.
In the upgrading of television set, be to utilize the design of set-top box (Set-Top Box) to watch digital broadcast program in the past, or upgraded TV user interface to receive the broadcasting and the video-audio signal of different system.In addition, please refer to Figure 1B, it illustrates Digital Television main frame that the number of concluding a case is 541836 Taiwan patent and the circuit structure calcspar that the expanding system card couples.Main frame 160 has kept basic Digital Television such as basic application, operating system, device driver, hardware and has received playing function, and by definition and design to common extended interface 170, make to change on the expanding system card 180 in the application program of carrying out on the main frame 160 originally and carry out.Though main frame 160 can reach purpose of upgrading by upgrading expanding system card 180 to carry out different application programs.But the Digital Television of this Patent publish only limits to expand the application program system of Digital Television, and can't expand and upgrade with regard to different NTSC, PAL, ATSC and DVB broadcast system, to adapt to the diversified demand of different clients.
Summary of the invention
In view of this, the purpose of this invention is to provide a kind of television set.To decode and demodulation function part becomes an I/O module with fundamental frequency video-audio signal handoff functionality part by separating on the motherboard.So can be according to client's demand, motherboard is made up the I/O module of different types, to receive the broadcast singal and the audio-visual input of fundamental frequency of different system, increase the system upgrade ability of television set.So, more help to produce keyholed back plate, alleviate and get the raw materials ready and stock's pressure.
According to purpose of the present invention, a kind of television set is proposed, in order to receiving inputted signal.Television set comprises enlargement module and motherboard.Enlargement module is in order to decoding and demodulation to input signal, and exports the fundamental frequency video-audio signal according to this.Motherboard comprises general-purpose interface, signal processing unit and microprocessor.General-purpose interface is in order to couple enlargement module to receive the fundamental frequency video-audio signal.Signal processing unit is in order to coupling general-purpose interface, and the fundamental frequency video-audio signal is carried out exporting after the sound processing.Microprocessor is in order to the control signal processing unit, and by general-purpose interface control enlargement module.Input signal comprises broadcast singal and a plurality of fundamental frequency video-audio signal.Enlargement module comprises decode/demodulates unit and multiplexer.The decode/demodulates unit is in order to decoding and demodulation to broadcast singal, and multiplexer is exported in order to select fundamental frequency video-audio signal part wherein.
Microprocessor is directly controlled decode/demodulates unit and multiplexer by general-purpose interface.Enlargement module comprises controller, and microprocessor controls this controller by general-purpose interface, with indirect control decode/demodulates unit and multiplexer.General-purpose interface comprises that several Europe are that signal pins, several U.S.As are that signal pins and number Zhi Oumei are the channel common pin.If input signal is when being NTSC system video-audio signal, the decode/demodulates unit comprises that U.S.A is audio-visual decoder, and enlargement module is that to utilize U.S.A of general-purpose interface be that the America and Europe of signal pins and part is that the channel common pin couples signal processing unit.When input signal was PAL system video-audio signal, then the decode/demodulates unit comprised that Europe is audio-visual decoder, and enlargement module is that to utilize Europe of general-purpose interface be that the America and Europe of signal pins and part is that the channel common pin couples signal processing unit.
When if input signal is ATSC system video-audio signal, the decode/demodulates unit comprises that U.S.A is audio-visual decoder and D/A conversion unit, and enlargement module is that to utilize U.S.A of general-purpose interface be that the America and Europe of signal pins and part is that the channel common pin couples signal processing unit.When input signal is the DVB system signal, then the decode/demodulates unit comprises that Europe is audio-visual decoder and D/A conversion unit, and enlargement module is that to utilize Europe of general-purpose interface be that the America and Europe of signal pins and part is that the channel common pin couples signal processing unit.Enlargement module comprises the DVD decoder, and in order to the DVD video-audio signal is decoded, and microprocessor is detectd side DVD decoder by the detection signal pin of general-purpose interface and by the control signal pin control DVD decoder of general-purpose interface.Therefore, can increase the system upgrade ability of television set, more help to produce keyholed back plate, alleviate and get the raw materials ready and stock's pressure.
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, a preferred embodiment cited below particularly, and formula is described in detail as follows in conjunction with the accompanying drawings.
Description of drawings
Figure 1A shows the motherboard circuit structure calcspar of conventional television;
Figure 1B shows the Digital Television main frame of Taiwan patent 541836 and the circuit structure calcspar that the expanding system card couples;
Fig. 2 A shows according to a preferred embodiment of the present invention TV set circuit structure chart;
Fig. 2 B shows the I/O module of reception NTSC video-audio signal among Fig. 2 A and the circuit structure calcspar that motherboard couples;
Fig. 2 C shows the I/O module of reception PAL video-audio signal among Fig. 2 A and the circuit structure calcspar that motherboard couples;
Fig. 2 D shows the I/O module of reception ATSC video-audio signal among Fig. 2 A and the circuit structure calcspar that motherboard couples; And
Fig. 2 E shows the I/O module of reception DVB video-audio signal among Fig. 2 A and the circuit structure calcspar that motherboard couples.
The drawing reference numeral explanation
100,220: motherboard
110,212: the decode/demodulates unit
120,214: multiplexer
130,224: signal processor
140,226: microprocessor
150,230: display
200: television set
The 210:I/O module
213: U.S.A is audio-visual decoder
215: Europe is audio-visual decoder
217,219: D/A conversion unit
222: general-purpose interface
223: Europe is signal pins
225: U.S.A is a signal pins
227: the America and Europe is the channel common pin
240: loudspeaker
Embodiment
The topmost characteristics of the present invention are and will in original motherboard broadcast singal be decoded and the funtion part of demodulation and funtion part that the fundamental frequency video-audio signal is switched module ratio in addition, and become independent input and output (I/O) module by separating on the motherboard.So motherboard can make up the I/O module of above-mentioned different types according to client's demand, to receive the broadcast singal and the audio-visual input of fundamental frequency of different system, increase the system upgrade ability of television set, more help to produce keyholed back plate, alleviate and get the raw materials ready and stock's pressure.
Please refer to Fig. 2 A, it shows according to a preferred embodiment of the present invention TV set circuit structure chart.Television set 200 comprises input signals such as broadcast singal Sc and fundamental frequency video-audio signal Sb in order to reception.Broadcast singal Sc comprises satellite channel signal, wire cable channel signals, radio channels signal and radio-frequency input signals.Fundamental frequency video-audio signal Sb then comprises S terminal video signal, synthetic video signal and color difference signal etc.Television set 200 comprises input and output (I/O) module 210, motherboard 220, display 230 and loudspeaker 240.I/O module 210 is by motherboard 220 power supplies, and I/O module 210 comprises decode/demodulates unit 212 and multiplexer 214.Decode/demodulates unit 212 is in order to decoding and demodulation to broadcast singal Sc, and exports fundamental frequency video-audio signal Scb according to this, and multiplexer 214 is exported in order to select part wherein in a plurality of fundamental frequency video-audio signal Sb.
In addition, motherboard 220 comprises general-purpose interface 222, signal processor 224 and microprocessor 226.General-purpose interface 222 is in order to couple I/O module 210, to receive fundamental frequency video-audio signal Scb and Sb.Signal processing unit 224 is in order to coupling general-purpose interface 222, and after fundamental frequency video-audio signal Scb and Sb carried out sound processing, exports signal of video signal Si and audio signal Sv to display 230 and loudspeaker 240 respectively.Microprocessor 226 is in order to control signal processing unit 224, and directly detects and control the decode/demodulates unit 212 and the multiplexer 214 of I/O module 210 by general-purpose interface 222 pins.Motherboard 220 can also couple the I/O module 210 with controller, and microprocessor 226 by general-purpose interface 222 with the mode of inquiry (Polling) thus controller learn the kenel of I/O module 210, and control decode/demodulates unit 212 and multiplexer 214 indirectly.
Characteristics of the present invention are and will on the motherboard 220 broadcast singal Sc be decoded and the funtion part of demodulation and fundamental frequency video-audio signal Sb made in addition modularization of the funtion part switched, and become I/O module 210 by separating on the motherboard 220.Only keep as for 224 of signal processing units fundamental frequency video-audio signal Scb and Sb are done basic video signal, image and acoustic processing.Under the pin design of collocation general-purpose interface 222, motherboard 220 can be according to client's demand, and the I/O module 210 of combination different types to receive the broadcast singal Sc and the fundamental frequency video-audio signal Sb of different system, increases the system upgrade ability of television set 200.
Please refer to table one, general-purpose interface 222 has 62 supported signals and power line pin.Pin 1~5,22~25 and 43~44 is television text (Teletext) function coherent signal in order to transmission Europe.Pin 6 and 27 is detection signal SCART in order to transmission Europe.And pin 7~8,28~29,48 and 53~54 control signals in order to 226 pairs of I/O modules 210 of transmission microprocessor, for example I 2The USDA of C and USDL signal and UART signal.Pin 9~11 and 30~32 is in order to transmission S terminal video signal SVHS.Pin 12 and 33~34 is in order to transmit synthetic video signal CVBS.Pin 45~47 is TV output (TV-out) signal pins.Pin 13,26,49~52 and 57 is the power line pin.Pin 14,15~17,35~38 and 58 is a sound source signal in order to transmit U.S.A.Pin 18~20,39~41 and 59~61 is in order to transmission color difference signal YUV.Pin 21,42 and 62 for Europe system and U.S.A be the sound source signal common pin.
In addition, pin 55~56 is in order to transmission detection signal ID_1 and ID_2, to detect the attribute or the outfit of I/O module 210.ID_1=' 1 ' for example, ID_2=' 0 ', expression I/O module 210 is equipped with DVD decoder (or DVD player).Conclude, 62 above-mentioned pins have comprised that Europe is signal pins, for example be that Teletext signal pins and SCART signal pins, U.S.A are signal pins, for example being that sound source signal pin and America and Europe are the channel common pin, for example is video signal pin, color difference signal pin, control signal pin, detection signal pin, power line pin and sound source signal pin etc.
Table one
Pin Signal name Characteristics of signals Pin Signal name Characteristics of signals
?1 ?Teletext_RGB_B(6) Europe is the Teletext signal ?32 ?SVHS_1_C(3) S terminal video signal
?2 ?Teletext_RGB_B(6) Europe is the Teletext signal ?33 ?CVBS_1_Return(2) Synthetic video signal
?3 ?Teletext_RGB_B(6) Europe is the Teletext signal ?34 ?CVBS_2_Signal(1) Synthetic video signal
?4 ?Teletext_fast_bla ?nking Europe is the Teletext signal ?35 ?Audio_Center_Gnd_si ?gnal(2) U.S.A is a sound source signal
?5 ?Teletext_start Europe is the Teletext signal ?36 ?Audio_to_earphone_f ?or_subpicture_R(2) U.S.A is a sound source signal
?6 ?SCART_aspect_rati ?o_1 Europe is detection signal SCART ?37 ?Audio_Woofer_Gnd_gr ?id(2) U.S.A is a sound source signal
?7 ?DAC_RST(1) ?I 2The C reset signal ?38 ?Audio_Rear_L_R_Gnd_ ?of_gnd(3) U.S.A is a sound source signal
?8 ?TX_232 The UART signal ?39 ?YUV_1_Pr_Return(B) Color difference signal
?9 ?SVHS_2_C(3) S terminal video signal ?40 ?YUV_1_Pb_Return(6) Color difference signal
?10 ?SVHS_1_Return(3) S terminal video signal ?41 ?YUV_1_Y_Return(6) Color difference signal
?11 ?SVHS_1_Y(3) S terminal video signal ?42 ?Audio_Front_L_R_Gnd ?_of_Gnd(3) The America and Europe is the sound source signal common pin
?12 ?CVBS_1_Signal(2) Synthetic video signal ?43 ?Teletext_HS Europe is the Teletext signal
?13 ?GND_1_of_(3) Ground power line ?44 ?Teletext_Hs_Vs_retu ?rn Europe is the Teletext signal
?14 ?Audio_Center_Gnd_ ?gnd(2) U.S.A is a sound source signal ?45 ?TV_out Television output signal
?15 ?Audio_to_earphone ?_for_subpicture_L ?(2) U.S.A is a sound source signal ?46 ?TV_R Television output signal
?16 ?Audio_Woofer_Gnd_ ?woofer(2) U.S.A is a sound source signal ?47 ?TV_L Television output signal
?17 ?Audio_Rear_L_R_Gn ?d_of_R(3) U.S.A is a sound source signal ?48 ?Audio_Mute Quiet control signal
?18 ?YUV_1_Pr(6) Color difference signal ?49 ?12V_a(2) The 12V power line
?19 ?YUV_1_Pb(6) Color difference signal ?50 ?12V_b(2) The 12V power line
?20 ?YUV_1_Y(6) Color difference signal ?51 ?5V_a(2) The 5V power line
?21 ?Audio_Front_L_R_G ?nd_of_R(3) The America and Europe is the sound source signal common pin ?52 ?5V_b(2) The 5V power line
?22 ?Teletext_VS Europe is the Teletext signal ?53 ?USDA ?I 2The SDA signal of C signal
?23 ?Teletext_RGB_G_Re ?turn(6) Europe is the Teletext signal ?54 ?USCL ?I 2The SCL signal of C signal
?24 ?Teletext_RGB_G_Re ?turn(6) Europe is the Teletext signal ?55 ?ID_1 Detection signal
?25 ?Teletext_RGB_R_Re ?turn(6) Europe is the Teletext signal ?56 ?ID_2 Detection signal
?26 ?GND-2_of_(3) Ground power line ?57 ?GND_3_of_(3) Ground power line
?27 ?SCART_mode_det_1 Europe is detection signal SCART ?58 ?Audio_Rear_L_R_Gnd_ ?of_L(3) U.S.A is a sound source signal
?28 ?RESET_I_O_Module I/O module reset signal ?59 ?YUV_2_Pr(3) Color difference signal
?29 ?RX_232 The UART signal ?60 ?YUV_2_Pb(3) Color difference signal
?30 ?SVHS_2_Return(3) S terminal video signal ?61 ?YUV_2_Y(3) Color difference signal
?31 ?SVHS_2_Y(3) S terminal video signal ?62 ?Audio_Front_L_R_Gnd ?_of_L(3) The America and Europe is the sound source signal common pin
Next just also be illustrated in conjunction with the accompanying drawings with the combination different types with the well-designed I/O module 210 of motherboard 220 by above-mentioned general-purpose interface 222 pins.Shown in Fig. 2 B, when the I/O of television set 200 module 210 patterns in order to receive the NTSC video-audio signal S of system NTSCThe time, decode/demodulates unit 212 comprises that U.S.A is audio-visual decoder 213, in order to audio frequency and the image of input broadcast singal Sc are partly decoded.And I/O module 210 utilize U.S.A of above-mentioned general-purpose interface 222 be signal pins 225 and the part the America and Europe be that channel common pin 227 couples signal processing unit 224.Shown in Fig. 2 C, when the I/O of television set 200 module 210 patterns in order to receive the PAL video-audio signal S of system PALThe time, decode/demodulates unit 212 comprises that Europe is audio-visual decoder 215, in order to audio frequency and the image of input broadcast singal Sc are partly decoded, and I/O module 210 to utilize the Europe of general-purpose interface 222 be that the America and Europe of signal pins 223 and part is that channel common pin 227 couples signal processing unit 224.
Shown in Fig. 2 D, when the I/O of television set 200 module 210 patterns in order to receive the ATSC video-audio signal S of system ATSCThe time, decode/demodulates unit 212 comprises that U.S.A is audio-visual decoder 213 and D/A conversion unit 217, in order to audio frequency and the image of input broadcast singal Sc are partly decoded, and be converted to analog signal output, and I/O module 210 to utilize U.S.A of general-purpose interface 222 be that the America and Europe of signal pins 225 and part is that channel common pin 227 couples signal processing unit 224.
In addition, shown in Fig. 2 E, when the I/O of television set 200 module 210 patterns in order to receive the DVB video-audio signal S of system DVBThe time, decode/demodulates unit 212 comprises that Europe is audio-visual decoder 215 and D/A conversion unit 219, in order to audio frequency and the image of input broadcast singal Sc are partly decoded, and is converted to analog signal output.And I/O module 210 utilize the Europe of general-purpose interface 222 be signal pins 223 and the part the America and Europe be that channel common pin 227 couples signal processing unit 224.
Certainly the designer also can choose the interface pin that appropriate signals group designs the I/O module according to client's needs, so that required television type to be provided.For example customer requirement will have two groups of CVBS signals and two groups of SVHS signals as the audio-visual input of fundamental frequency source.On the other hand, it wants can receive and demodulation NTSC channel program.Therefore, I/O module 210 need have at least 2 groups of CVBS signal pins, 2 groups of SVHS signal pins, control signal USDA and USCL pin, detection signal ID_1 and ID_2 pins, sound source signal Audio_L, Audio_R pin and+5V ,+12V power line pin.Microprocessor 226 learns just that according to ID_1 and ID_2 voltage element and configuration on the I/O module 210 take suitable control mode to finish the defined function of this television type.
On the other hand, in order to provide the client can be after buying at present such product, still can and support the color difference signal YPbPr input that two groups of HDTV use with the newly-increased ATSC digital received of the mode of changing I/O module 210, the designer only needs newly to design a block I/O module 210.The signal that is connected between I/O module 210 and the motherboard 220 can also add control signal RX_232, TX_232 and 2 groups of YUV signal except above mentioned 6 groups of signals and power supply.
According to above-mentioned preferred embodiment, television set of the present invention mainly has following two advantages:
1. television set of the present invention will be with receiving the different system channel the often decoding of change and demodulation function and because of the client needs in addition modularization of the fundamental frequency video-audio signal input that adjust, and by separating on the motherboard.Arrange in pairs or groups again and comprise the design for Universal Interface of needed signals of different system such as NTSC, PAL, ATSC and DVB and power line pin in the motherboard.So the client can change the I/O module of different types according to need, receive the broadcast singal and the audio-visual input of different system, therefore increased the upgrading ability of television set.
2. aspect production, because the I/O module is separated from motherboard, the designer can be combined into the not type of machine in the mode of changing the I/O module under the prerequisite of not changing appearance design and motherboard.Because of motherboard is a shared module, get the raw materials ready and stock's pressure so can alleviate widely.For example, can be sold to the country of other U.S. system or Europe system according to need at present at 10,000 of Taiwan stocks' motherboard.As long as the suitable I/O module of combination just can be watched local channel program.Therefore, increase the elasticity of producing keyholed back plate.
In sum; though the present invention discloses as above with a preferred embodiment; right its is not in order to limit the present invention; those skilled in the art under the premise without departing from the spirit and scope of the present invention; can be used for a variety of modifications and variations, so protection scope of the present invention is as the criterion with claim of the present invention.

Claims (13)

1. television set, in order to receive an input signal, this television set comprises:
One enlargement module in order to this input signal is decoded and demodulation, and is exported a fundamental frequency video-audio signal according to this; And
One motherboard comprises:
One general-purpose interface in order to coupling this enlargement module, and receives this fundamental frequency video-audio signal;
One signal processing unit in order to coupling this general-purpose interface, and carries out exporting after the sound processing to this fundamental frequency video-audio signal; And
One microprocessor in order to controlling this signal processing unit, and is controlled this enlargement module by this general-purpose interface.
2. television set as claimed in claim 1, wherein this input signal comprises a broadcast singal and a plurality of fundamental frequency video-audio signal.
3. television set as claimed in claim 2, wherein this enlargement module comprises a decode/demodulates unit and a multiplexer, this decode/demodulates unit is in order to decoding and demodulation to this broadcast singal, and this multiplexer is exported in order to select described fundamental frequency video-audio signal part wherein.
4. television set as claimed in claim 3, wherein this microprocessor directly detects and controls this decode/demodulates unit and this multiplexer by this general-purpose interface.
5. television set as claimed in claim 3, wherein this enlargement module comprises a controller, and this microprocessor is learnt the form of this enlargement module in the mode of inquiry (Polling) by this controller by this general-purpose interface, and controls this decode/demodulates unit and this multiplexer indirectly.
6. television set as claimed in claim 3, wherein this general-purpose interface comprises that many Europe are that signal pins, many U.S.As are that signal pins and many America and Europes are the channel common pin.
7. television set as claimed in claim 6, wherein this input signal is a NTSC system video-audio signal, this decode/demodulates unit comprises that a U.S.A is audio-visual decoder, and this enlargement module is that to utilize described U.S.A of this general-purpose interface be that the described America and Europe of signal pins and part is that the channel common pin couples this signal processing unit.
8. television set as claimed in claim 6, wherein this input signal is a PAL system video-audio signal, this decode/demodulates unit comprises that an Europe is audio-visual decoder, and this enlargement module is that to utilize described Europe of this general-purpose interface be that the described America and Europe of signal pins and part is that the channel common pin couples this signal processing unit.
9. television set as claimed in claim 6, wherein this input signal is an ATSC system video-audio signal, this decode/demodulates unit comprises that a U.S.A is audio-visual decoder and one first D/A conversion unit, and this enlargement module utilize described U.S.A of this general-purpose interface be signal pins and the part described America and Europe be that the channel common pin couples this signal processing unit.
10. television set as claimed in claim 6, wherein this input signal is a DVB system signal, this decode/demodulates unit comprises that an Europe is audio-visual decoder and one second D/A conversion unit, and this enlargement module utilize the described Europe of this general-purpose interface be signal pins and the part described America and Europe be that the channel common pin couples this signal processing unit.
11. television set as claimed in claim 6, wherein said Europe is that signal pins comprises many Teletext signal pins and many SCART signal pins, described U.S.A is that signal pins comprises many first sound source signal pins, and described America and Europe is that the channel common pin comprises many video signal pins, many color difference signal pins, many control signal pins, many detection signal pins, many power line pins and many second sound source signal pins.
12. television set as claimed in claim 11, wherein this enlargement module comprises a DVD decoder, in order to a DVD video-audio signal is decoded, and this microprocessor detects this DVD decoder and controls this DVD decoder by described control signal pin by described detection signal pin.
13. television set as claimed in claim 1, wherein this signal processing unit is in order to carry out basic video signal, image and acoustic processing to this fundamental frequency video-audio signal.
CNA2004100433536A 2004-05-10 2004-05-10 TV set Pending CN1697495A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104360978B (en) * 2014-09-23 2017-11-10 天津三星电子有限公司 SCART/UART interface multiplexing circuits and the electronic equipment using the circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104360978B (en) * 2014-09-23 2017-11-10 天津三星电子有限公司 SCART/UART interface multiplexing circuits and the electronic equipment using the circuit

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