CN2239634Y - Computer film acoustics controller - Google Patents
Computer film acoustics controller Download PDFInfo
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- CN2239634Y CN2239634Y CN 95240936 CN95240936U CN2239634Y CN 2239634 Y CN2239634 Y CN 2239634Y CN 95240936 CN95240936 CN 95240936 CN 95240936 U CN95240936 U CN 95240936U CN 2239634 Y CN2239634 Y CN 2239634Y
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Abstract
The utility model relates to a controller for controlling the film acoustic signal of a computer. The controller is connected in series between the computer and the display. The utility model is composed of a red signal processing unit circuit, a green signal processing unit circuit, a blue signal processing unit circuit, a line synchronic processing unit circuit, a field synchronic processing unit circuit, a voice signal processing unit circuit, etc. Each signal processing unit circuit is composed of an amplifying circuit and a converting circuit. Each converting circuit is respectively provided with an output terminal and an input terminal. A red signal output terminal, a green signal output terminal, a blue signal output terminal, a line synchronic signal terminal, and a field synchronic signal terminal are respectively connected with one input terminal of the converting circuit in processing unit circuit corresponding to each signal terminal in the controller. The input terminal of each signal output terminal and one output terminal are all connected with the corresponding signal transmission wire in the visual massage bus wire. The other output terminal of each converting circuit in each signal unit processing circuit respectively is connected with the corresponding signal input terminal of the display.
Description
The utility model relates to the computing machine image sound controller of a kind of control computer picture signal, the two-way real-time transmission of voice signal multiple spot in LAN (Local Area Network), reception and interruption.
At present the audio-visual control device one of computing machine is the phone education network, be applied in some large, medium and small, but they all can only finish functions such as voice broadcast, many people dialogue in the phone classroom, can not carry out message such as character image and exchange in real time.Adopt computer teaching in some schools now, watch after one's death but students generally can only be trapped among teacher, return the preceding operation of computer of oneself, teacher also needs constantly to make an inspection tour back and forth simultaneously, instruction of papil, so this form of teaching is not too convenient, efficient is also poor; This external computer video transmission aspect, the VGA signal one machine multi-screen drivers that adopt more, it can transfer to other a plurality of (as 8) display through amplification with the screen content of a computing machine, reach the purpose of receiving same computer screen content at diverse location, driving force 100-200 rice, it is usually used in environment such as securities broker company, station terminal, industrial monitoring, it has only a fixed host computer can send its screen, other terminal only receives screen, more can not implement the interchange of bidirectional picture, sound.
The purpose of this utility model is exactly to provide a kind of applied range for the above-mentioned defective that solves prior art, can make the basic function equity of all computers (website) in the audio-visual network, can also can receive the computing machine image sound controller of image and speech from network as required to online transmission image and speech.
Technical solution of the present utility model is as follows:
A kind of computing machine image sound controller, it is characterized in that it is serially connected between computing machine and the display, it is by danger signal processing unit circuit, green processing unit circuit, blue signal processing unit circuit, line synchronizing signal processing unit circuit, field sync signal processing unit circuit, voice signal processing unit circuit is formed, each signal processing circuit unit is made of amplifying circuit and change-over circuit, each change-over circuit has two input end A, B and two output terminal C, D, between its input end and output terminal, be connected in series amplifying circuit, to guarantee to keep signal transmission level and high resistant reception, it is red that computer video is exported, green, blue, row synchronously, five output terminals of field synchronization are connected with an input end A of change-over circuit in each alignment processing element circuit in the controller respectively, change-over circuit one input end A is connected in the Audio Processing Unit circuit of microphone output and controller, another input end B of each change-over circuit and an output terminal C all are connected with corresponding signal transmssion line in the video signal bus, red, turquoise, row synchronously, another output terminal D of each change-over circuit is connected with the respective signal input end of display respectively in the field synchronization cell processing circuit, another output terminal D lug machine of change-over circuit in the voice signal processing unit circuit, the image sound controller that the video signal bus is advanced serial connection in each computing machine and the display links into an integrated entity, its method of attachment is identical, and video signal bus two ends are by build-out resistor Ra, Rb ground connection.
Advantage of the present utility model is that it can realize that image of arbitrary website is passed to other, a plurality of or all website in the network, can realize voice broadcast service in the networking, double dialogue, all function such as listen to; It is linked to be an audio-visual network with academics and students's computer, can be to online transmission image and speech, also acceptance pattern picture and speech from network, can satisfy all related needs in multimedia computer classroom, whether the inner arbitrary website in networking starts shooting, whether operate as normal is all to the not influence of other website, thereby has avoided paralysing because of the malfunctioning the whole network road of causing of indivedual websites in the actual use; The utility model assembling ease of connection, that single networking section support station is counted is many, network length is long, can reach 25 websites and reach 50 more than the website through audio-visual repeater forwarding, and be furnished with two-way earphone and microphone on each website, for a shared computer of double while, can support the teaching network dimensioning of different demands, the utility model also can be widely used in office automation, securities broker company, station, harbour, industry spot as the monitor terminal use.
The utility model will be further described below in conjunction with accompanying drawing:
Fig. 1 is the circuit general diagram synoptic diagram of the utility model access network;
Fig. 2 is a unit theory diagram of the present utility model;
Fig. 3 is the electrical schematic diagram of color signal processing unit circuit of the present utility model;
Fig. 4 is the electrical schematic diagram of synchronizing signal processing unit circuit of the present utility model;
Fig. 5 is the electrical schematic diagram of voice signal processing unit circuit of the present utility model;
Fig. 6 is the theory diagram of interface circuit of the present utility model.
Shown in Fig. 1-6, of the present utility model red, green, blue three color signal processing unit circuit (3), (4), (5) circuit is identical, (the color signal processing unit circuit of Fig. 3 be example with danger signal processing unit circuit) all can be by relay K 1, K2, K3, transistor Q1, Q2, Q3, field effect transistor Q4, diode D1, D2, D3, resistance R 1-R10, capacitor C 1-C3, amplifier U1 forms, Q4 wherein, U1, C1-C3, R4-R10 forms amplifying circuit, the Q4 in this amplifying circuit, R4, R5, C1 is the high resistant receiving circuit, and it is connected on the input end of amplifier U1; K1, D1, Q1, R1 forms the reception change-over circuit, K2, Q2, D2, R2 forms the transmission change-over circuit, K3, Q3, D3, R3 forms state switching circuit, color signal processing unit circuit one input end A meets normally closed contact K3a and the K2 normally opened contact K2b of K3, its another input end B and one output terminal C meet K1 simultaneously, the moving contact K1c of K2, K2c, another output terminal D meets the moving contact K3c of K3, the normally opened contact K1b of K1 connects the gate input of the Q4 of high resistant receiving circuit in the amplifying circuit, amplifying circuit output is drawn the normally opened contact K3b that meets K3 from the output terminal of amplifier U1, receives, transmission, three control ends of state switching circuit are transistor Q1, Q2, the base stage of Q3 all connects the data bus of computing machine (1) by interface circuit (9).
The capable synchronous and field sync signal cell processing circuit (6) of the utility model, (7) circuit also identical (the synchronizing signal processing unit circuit of Fig. 4 be example with line synchronizing signal processing unit circuit), can be by relay K 4, K5, transistor Q5, Q6, driver U3, with door U2, diode D4, D5, resistance R 11-R14 forms, K4 wherein, Q5, D4, R11 forms the reception change-over circuit, K5, Q6, D5, R12 forms the transmission change-over circuit, U2, R13 and U3, R14 forms two amplifying circuits, one input end A of synchronizing signal processing unit circuit connects the input of amplifier U3, the output of U3 meets the moving contact K4C of K4, its another an input end B and an output terminal C meet the moving contact K5c of K5, another output terminal D connects the output terminal of amplifier U2, the input of U2 meets the normally opened contact K5b of K5 and K4 simultaneously, K4b, receive, the control end of transmission change-over circuit is from their Q6, the Q5 base stage is drawn, and connects the data bus of computing machine (1) by interface circuit (9).
Voice signal processing unit circuit can be by relay K 6, K7, diode D6, D7, transistor Q7, Q8, amplifier U4-U9, resistance R 15-R28, capacitor C 4-C9 and potentiometer W1 form, K6 wherein, D6, Q7, R15 forms the transmission change-over circuit, K7, D7, R16, Q8 forms the reception change-over circuit, U4, R17-R20, C4, C5 and U5, R21-R24, C6 forms two passage input amplifiers, they with by U6, U7, R25, the composite amplifier that R26 forms is serially connected, U8 is a prime amplifier, U9, C7-C9, R28 constitutes the low-power amplifier circuit, U8, be serially connected by potentiometer W1 between the U9, the input end A of voice signal processing unit circuit meets binary channels input amplifier U4, the input end of U5, the normally opened contact K6b that meets K6 is drawn in the output of its composite amplifier from the output terminal of U7, an another input end B of processing unit circuit and an output terminal C meet the moving contact K6c of K6 and the normally opened contact K7b of K7 simultaneously, another output terminal D connects the output terminal of low-power amplifier U9, the moving contact K7c of the input termination K7 of pre-amplification circuit U8 receives, the control end of transmission change-over circuit is the base stage of Q8 and Q7 all connects computing machine (1) by interface circuit (9) a data bus.
Interface circuit (9) is made up of address decoding circuitry IC1, latch cicuit IC2 and control circuit IC3, their input is connected with data bus, address bus and the control bus of computing machine (1) respectively, the output of IC1 connects another input of IC3, the output of IC3 connects the control end of IC2, and the multichannel output of IC2 connects with each corresponding control end of color signal processing unit circuit, row, field sync signal processing unit circuit and voice signal processing unit circuit respectively by connector IC4.
The utility model course of work is as follows: be example with the audio-visual education programme, when being a teacher the screen content wanting to allow each student receive the own computing machine of teacher (1) and voice signal, teacher sends data by software to the data bus of own computing machine, and the conversion by interface circuit (9) forms the reception of each cell processing circuit in the image sound controller (10) of control signal control local (promptly being connected on the own computing machine of teacher), transmission, the state switching circuit action, simultaneously again by software as calculated the machine network to each student's computing machine (1) move instruction, and send data to student's machine data bus by the software on student's machine, control the transmission of each cell processing circuit in the image sound controller (10) on each student's machine by the conversion formation control signal of each student's machine interface circuit (9) again, receive, the state switching circuit action.Image sound controller (10) red on teacher's machine like this, green, in blue each color cell treatment circuit, the relay K 1 of their each change-over circuit, K2, K3 all is in normally open, the relay K 4 of row each change-over circuit synchronously and in the field synchronization cell processing circuit, K5 also is in normally open, the relay K 6 of each change-over circuit in its voice unit treatment circuit, K7 also is in normally open, and the image sound controller of each student's machine (10) duty is all identical, this moment, it was red, green, in the blue three-color cell processing circuit, the K1 of reception and state switching circuit, K3 is in normally open, transmission change-over circuit K2 is in normally off, row synchronously, in the field synchronization cell processing circuit, receive change-over circuit K4 and be in normally off, K5 is in normally open in the transmission change-over circuit, in the voice unit treatment circuit, receive change-over circuit K7 and be in normally open, transmission change-over circuit K6 is in normally off.Therefore, red, green, blue color signal CR in the screen signal on teacher's computing machine (1), CG, CB go up respective color cell processing circuit A input end from local image sound controller (10) and introduce, and the normally opened contact K2b by transmission change-over circuit K2 leads to the video signal bus (11) on LR, LG, the LB from element circuit output terminal C.Simultaneously each color signal CR, CG, CB amplify through amplifying circuit U1 by the normally opened contact K1b that receives change-over circuit K1 again, and the normally opened contact K3b by state switching circuit K3 leads to color signal input end MR, MG, the MB of correspondence local display (2) from another output terminal D of cell processing circuit again again.Teacher's computing machine (1) is gone up screen signal CHS, row among the CVS, field sync signal goes up corresponding line from local image sound controller (10), A input end in the field synchronization cell processing is introduced, after the amplification of amplifier U3, and lead to Lhs the video signal bus (11) from element circuit output terminal C through the normally opened contact K5b conversion of the normally opened contact K4b of change-over circuit K4 and transmission change-over circuit K5, on the Lvs, go simultaneously, field sync signal CHS, another output terminal D from the cell processing circuit after CVS amplifies by amplifier U2 again leads to upward each corresponding synchronous signal input end MHS of local display (2), MVS, teacher's computing machine has just been finished the process of transmitting with screen signal like this, and obtains the image of oneself on local display (2).At this moment, red, green, blue color cell treatment circuit and row, field synchronization cell processing circuit all receive teacher's screen signal in the image sound controller (10) on each student's machine from video signal bus (11), its each color signal LR, LG, LB introduce from the input end B of respective color element circuit, amplify the normally opened contact K3b that delivers to state switching circuit K3 through amplifier U1 again by the normally opened contact K1b that receives change-over circuit K1, and lead to (2) each corresponding color signal input part MR, MG, MB the display on student's machine from an output terminal D of cell processing circuit.Its row, field sync signal LHS, LVS introduce from the input end B of respective synchronization cell processing circuit, normally opened contact K5b by transmission change-over circuit K5 amplifies each corresponding synchronous signal input end MHS, MVS the display (2) that leads to from an output terminal D of cell processing circuit on student's machine through amplifier U2 again, and each student's machine has just received all screen signals on teacher's machine and shown on own display (2) like this.Since on each student's machine the red, green, blue color cell treatment circuit of image sound controller (10) and row, field synchronization cell processing circuit respectively transmit change-over circuit K2 and K4 is in normally off, just each student's machine vision signal and each self-corresponding display (2) are disconnected, and can only go up received signal from video signal bus (11).
The transmission of voice signal is as follows: teacher's voice signal is introduced by the input end A of voice unit treatment circuit the image sound controllers (10) of various sources of sound from teacher's machine such as microphone MIC, through amplifying circuit U4, U5, U6, U7 amplifies the normally opened contact K6b of back by transmission change-over circuit K6 and delivers to video signal bus (11) on the voice transmission line LA from the output terminal C of cell processing circuit, and teacher's voice signal passes through amplifying circuit U8 again by the normally opened contact K7b of reception change-over circuit K7 again simultaneously, U9 amplifies the back and leads to local earphone or audio amplifier SPK from cell processing circuit output end D.Teacher's machine has just been finished the process of transmitting of voice signal like this.Each student's machine just can obtain teacher's voice signal from the voice transmission line LA of video signal bus (11).The input end B of the signal of LA voice signal unit treatment circuit of image sound controller (10) from student's machine introduces, lead on the earphone or audio amplifier SPK of student's machine through the output terminal D of amplifier U8, U9 amplification from the cell processing circuit again behind the normally opened contact K7b through receiving change-over circuit K7, each student just can receive teacher's voice signal like this.If need a certain student when teacher or other classmates demonstrate, the course of work is identical, and just the state that this moment should demonstration student machine is identical with above-mentioned teacher's machine, and other classmate's machines and teacher's machine all are in accepting state.Signal transmission and reception between teacher and classmate and the classmate classmate have so just been finished.
Claims (5)
1. computing machine image sound controller, it is characterized in that it is serially connected between computing machine (1) and the display (2), it is by danger signal processing unit circuit (3), green processing unit circuit (4), blue signal processing unit circuit (5), line synchronizing signal processing unit circuit (6), field sync signal processing unit circuit (7), voice signal processing unit circuit (8) is formed, each signal processing circuit unit is made of amplifying circuit and change-over circuit, each change-over circuit has two input end A, B and two output terminal C, D, between its input end and output terminal, be connected in series amplifying circuit, to guarantee to keep signal transmission level and high resistant reception, it is red that computer video is exported, green, blue, row synchronously, five output terminals of field synchronization are connected with an input end A of change-over circuit in each alignment processing element circuit in the controller (10) respectively, change-over circuit one input end A is connected in the Audio Processing Unit circuit of microphone output and controller, another input end B of each change-over circuit all is connected with the middle corresponding signal transmssion line of video signal bus (11) with an output terminal C, red, turquoise, row synchronously, another output terminal D of each change-over circuit is connected with the respective signal input end of display (2) respectively in the field synchronization cell processing circuit, another output terminal D lug machine of change-over circuit in the voice signal processing unit circuit, the image sound controller (10) that video signal bus (11) is advanced serial connection in each computing machine (1) and the display (2) links into an integrated entity, its method of attachment is identical, and video signal bus (11) two ends are by build-out resistor Ra, Rb ground connection.
2. computing machine image sound controller according to claim 1, it is characterized in that: the circuit of three color signal processing units of red, green, blue circuit (3), (4), (5) is identical, all can be by relay K 1, K2, K3, transistor Q1, Q2, Q3, field effect transistor Q4, diode D1, D2, D3, resistance R 1-R10, capacitor C 1-C3, amplifier U1 forms, wherein Q4, U1, C1-C3, R4-R10 form amplifying circuit, and the Q4 in this amplifying circuit, R4, R5, C1 are the high resistant receiving circuit, and it is connected on the input end of amplifier U1; K1, D1, Q1, R1 forms the reception change-over circuit, K2, Q2, D2, R2 forms the transmission change-over circuit, K3, Q3, D3, R3 forms state switching circuit, color signal processing unit circuit one input end A meets normally closed contact K3a and the K2 normally opened contact K2b of K3, its another input end B and one output terminal C meet K1 simultaneously, the moving contact K1c of K2, K2c, another output terminal D meets the moving contact K3c of K3, the normally opened contact K1b of K1 connects the gate input of the Q4 of high resistant receiving circuit in the amplifying circuit, amplifying circuit output is drawn the normally opened contact K3b that meets K3 from the output terminal of amplifier U1, receives, transmission, three control ends of state switching circuit are transistor Q1, Q2, the base stage of Q3 all connects the data bus of computing machine (1) by interface circuit (9).
3. computing machine image sound controller according to claim 1, it is characterized in that: the synchronous and field sync signal cell processing circuit (6) of row, (7) circuit is also identical, all can be by relay K 4, K5, transistor Q5, Q6, driver U3, with door U2, diode D4, D5, resistance R 11-R14 forms, K4 wherein, Q5, D4, R11 forms the reception change-over circuit, K5, Q6, D5, R12 forms the transmission change-over circuit, U2, R13 and U3, R14 forms two amplifying circuits, one input end A of synchronizing signal processing unit circuit connects the input of amplifier U3, the output of U3 meets the moving contact K4C of K4, its another an input end B and an output terminal C meet the moving contact K5c of K5, another output terminal D connects the output terminal of amplifier U2, the input of U2 meets the normally opened contact K5b of K5 and K4 simultaneously, K4b, receive, the control end of transmission change-over circuit is from their Q6, the Q5 base stage is drawn, and connects the data bus of computing machine (1) by interface circuit (9).
4. computing machine image sound controller according to claim 1, it is characterized in that: voice signal processing unit circuit can be by relay K 6, K7, diode D6, D7, transistor Q7, Q8, amplifier U4-U9, resistance R 15-R28, capacitor C 4-C9 and potentiometer W1 form, K6 wherein, D6, Q7, R15 forms the transmission change-over circuit, K7, D7, R16, Q8 forms the reception change-over circuit, U4, R17-R20, C4, C5 and U5, R21-R24, C6 forms two passage input amplifiers, they with by U6, U7, R25, the composite amplifier that R26 forms is serially connected, U8 is a prime amplifier, U9, C7-C9, R28 constitutes the low-power amplifier circuit, U8, be serially connected by potentiometer W1 between the U9, one input end A of voice signal processing unit circuit meets binary channels input amplifier U4, the input end of U5, the normally opened contact K6b that meets K6 is drawn in the output of its composite amplifier from the output terminal of U7, an another input end B of processing unit circuit and an output terminal C meet the moving contact K6c of K6 and the normally opened contact K7b of K7 simultaneously, another output terminal D connects the output terminal of low-power amplifier U9, the moving contact K7c of the input termination K7 of pre-amplification circuit U8 receives, the control end of transmission change-over circuit is the base stage of Q8 and Q7 all connects computing machine (1) by interface circuit (9) a data bus.
5. computing machine image sound controller according to claim 1 is characterized in that: interface circuit (9) is made up of address decoding circuitry IC1, latch cicuit IC2 and control circuit IC3, their input is connected with data bus, address bus and the control bus of computing machine (1) respectively, the output of IC1 connects another input of IC3, the output of IC3 connects the control end of IC2, and the multichannel output of IC2 connects with each corresponding control end of color signal processing unit circuit, row, field sync signal processing unit circuit and voice signal processing unit circuit respectively by connector IC4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95240936 CN2239634Y (en) | 1995-11-24 | 1995-11-24 | Computer film acoustics controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95240936 CN2239634Y (en) | 1995-11-24 | 1995-11-24 | Computer film acoustics controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2239634Y true CN2239634Y (en) | 1996-11-06 |
Family
ID=33882422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95240936 Expired - Fee Related CN2239634Y (en) | 1995-11-24 | 1995-11-24 | Computer film acoustics controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2239634Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103348407A (en) * | 2011-10-24 | 2013-10-09 | 雅马哈株式会社 | Electroacoustic signal emitter device and electroacoustic signal emitter method |
| CN109714500A (en) * | 2019-01-17 | 2019-05-03 | 中孚信息股份有限公司 | A kind of VGA video unidirectional transmission method and device |
-
1995
- 1995-11-24 CN CN 95240936 patent/CN2239634Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103348407A (en) * | 2011-10-24 | 2013-10-09 | 雅马哈株式会社 | Electroacoustic signal emitter device and electroacoustic signal emitter method |
| US8978672B2 (en) | 2011-10-24 | 2015-03-17 | Yamaha Corporation | Electronic acoustic signal generating device and electronic acoustic signal generating method |
| CN103348407B (en) * | 2011-10-24 | 2015-05-20 | 雅马哈株式会社 | Electroacoustic signal emitter device and electroacoustic signal emitter method |
| CN109714500A (en) * | 2019-01-17 | 2019-05-03 | 中孚信息股份有限公司 | A kind of VGA video unidirectional transmission method and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |