CN2333132Y - Remote-control black-and-white television - Google Patents
Remote-control black-and-white television Download PDFInfo
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- CN2333132Y CN2333132Y CN 98221044 CN98221044U CN2333132Y CN 2333132 Y CN2333132 Y CN 2333132Y CN 98221044 CN98221044 CN 98221044 CN 98221044 U CN98221044 U CN 98221044U CN 2333132 Y CN2333132 Y CN 2333132Y
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Abstract
The utility model relates to a remote-control black-and-white television which overcomes the defects of the existing simple remote-control black-and-white television, such as high cost and low price ratio, and comprises a picture tube, a main machine core with a remote-control circuit, a remote-control emitter and a remote-control receiver, wherein, the remote-control circuit comprises a remote-control chip CPU, a brightness control circuit, a contrast control circuit and a character display circuit, and the remote-control chip CPU adopts the GMS44508. The input ends of the brightness control circuit, the contrast control circuit and the character display circuit are respectively connected with the foot 3, the foot 5 and the foot 23 of the remote-control chip CPU, and the output ends are all a television projecting output end a. The utility model enhances the reliability and the operating convenience of the black-and-white television, and has high price ratio.
Description
The utility model relates to a kind of black and white television set.
At present, black and white television set adopts the mechanical type tuner mostly both at home and abroad, and a small amount of employing electronic tuning unit is also arranged, and what the channel selection mode adopted is eight or 12 preliminary election potentiometers, and it is more to increase cost, and the user uses inconvenience.The black and white television set that adopts now telecontrol engineering and all is simple and easy remote control seldom, can only carry out volume and change platform control, and the preliminary election program still will be used the preliminary election potentiometer, the cost height, and cost performance is low, the user uses inconvenience.
The purpose of this utility model is, a kind of remote control black and white television set with brilliance control, contrast control and character Presentation Function is provided, and its cost is low, cost performance is high.
The purpose of this utility model is to realize like this, a kind of remote control black and white television set, comprise picture tube, have main frame core, remote control transmitter and the receiver of remote-control sytem of remote control circuit, its special character is, remote control circuit comprises remote-controlled chip CPU, intednsity circuit, contrast control circuit and character display circuit, remote-controlled chip CPU adopts GMS44508, and 34 pin of remote-controlled chip CPU are connected with the output of receiver of remote-control sytem; The input of intednsity circuit is connected with 3 pin of remote-controlled chip CPU, and output is put output a for looking, and looks to put output a and be connected with picture tube; The input of contrast control circuit is connected with 5 pin of remote-controlled chip CPU, and output is put output a for looking; The input of character display circuit is connected with 23 pin of remote-controlled chip CPU, and output is put output a for looking.
Remote control transmitter is used to launch remote signal, and receiver of remote-control sytem is used to receive the remote signal of remote control transmitter emission.Remote-controlled chip CPU discerns different pulse codes from the remote control circuit received pulse ripple of main frame core, from 3 pin, 5 pin output PWM ripple, from 23 pin output character pulses.Intednsity circuit is with the shaping of PWM ripple and the amplification of remote-controlled chip output, thereby the height of the current potential of putting output a is looked in adjustment, reaches the purpose of brilliance control.Contrast control circuit is exported the ripple of a variation by the PWM ripple shaping of shaping circuit with remote-controlled chip CPU output, and the ripple input matching circuit of this variation causes the variation of match circuit impedance, reaches the purpose of control contrast.Character display circuit amplifies the character pulse of remote-controlled chip CPU output, and high boost output at last to look and put pipe V3 substrate, thereby the character of control sets electrode shows.
Intednsity circuit of the present utility model comprises shaping circuit 1 and amplifying circuit 2, the input of shaping circuit 1 is the input of intednsity circuit, it is connected with 3 pin of remote-controlled chip CPU, the output of shaping circuit 1 is connected with the input of amplifying circuit 2, and the output of amplifying circuit 2 is put output a for looking.
After the PWM ripple shaping of shaping circuit 1 with input, the output DC position.After amplifying circuit 2 amplifies the DC potential of shaping circuit 1 output, put output a output by looking.
Contrast control circuit of the present utility model comprises shaping circuit 3 and match circuit 4, the input of shaping circuit 3 is the input of contrast control circuit, it is connected with 5 pin of remote-controlled chip CPU, the output of shaping circuit 3 is connected with the input of match circuit 4, and the output of match circuit 4 is put output a for looking.
After the PWM ripple shaping of shaping circuit 3 with input, the ripple of a variation of output.The ripple of the variation of shaping circuit 3 outputs causes the variation of match circuit 4 impedances, reaches the purpose of control contrast.
Character display circuit of the present utility model comprises amplifying circuit 5, high peaking circuit 6 and output circuit 7, the input of amplifying circuit 5 is the input of character display circuit, it is connected with 23 pin of remote-controlled chip CPU, the output of amplifying circuit 5 is connected with the input of high peaking circuit 6, the output of high peaking circuit 6 is connected with the input of output circuit 7, and the output of output circuit 7 is put output a for looking.
Amplifying circuit 5 amplifies the waveform of the character pulse of input, and high peaking circuit 6 carries out high boost with the waveform of amplifying circuit 5 outputs, puts output a after output circuit 7 outputs to look.
The utility model is compared with traditional mechanical tuning black and white television set, and mechanical channel selection changes the remote control channel selection into, reduces the mechanical friction of components and parts, has improved the reliability of complete machine.The utility model is compared with simple remote control black and white television set, and brightness, contrast adopt remote control control, reduce the possibility that potentiometer in use breaks down.Character display operation of the present utility model is very convenient, and the complete machine all functions all can be finished by remote controller, reduces the various regulating and controlling components and parts of main frame core.The utility model has increased the function of black and white television set, has improved the reliability of complete machine and the convenience of use, and cost increases few, and very high cost performance is arranged, and can replace tuning black and white television set of existing mechanical and simple and easy remote control black and white television set.
Below in conjunction with accompanying drawing embodiment of the present utility model is described in detail.
Fig. 1 is the circuit block diagram of remote control circuit of the present utility model.
Fig. 2 is the circuit diagram of remote control circuit of the present utility model.
This enforcement is a kind of remote control black and white television set, and it comprises picture tube, has main frame core, remote control transmitter and the receiver of remote-control sytem of remote control circuit.Remote control circuit comprises remote-controlled chip (CPU), intednsity circuit, contrast control circuit and character display circuit.As shown in Figure 1, remote-controlled chip (CPU) adopts GMS44508, and 34 pin of remote-controlled chip CPU are connected with the output of receiver of remote-control sytem.Intednsity circuit comprises shaping circuit 1 and amplifying circuit 2, the input of shaping circuit 1 is the input of intednsity circuit, it is connected with 3 pin of remote-controlled chip CPU, the output of shaping circuit 1 is connected with the input of amplifying circuit 2, the output of amplifying circuit 2 is put output a contrast control circuit and is comprised shaping circuit 3 and match circuit 4 for looking, the input of shaping circuit 3 is the input of contrast control circuit, it is connected with 5 pin of remote-controlled chip CPU, the output of shaping circuit 3 is connected with the input of match circuit 4, and the output of match circuit 4 is put output a for looking.Character display circuit comprises amplifying circuit 5, high peaking circuit 6 and output circuit 7, the input of amplifying circuit 5 is the input of character display circuit, it is connected with 23 pin of remote-controlled chip CPU, the output of amplifying circuit 5 is connected with the input of high peaking circuit 6, the output of high peaking circuit 6 is connected with the input of output circuit 7, and the output of output circuit 7 is put output a for looking.As shown in Figure 2, shaping circuit 1 comprises resistance R 1, resistance R 2, resistance R 3 and capacitor C 1, amplifying circuit 2 comprises resistance R 4, resistance R 5 and triode V1, one end of resistance R 1 and resistance R 2 is as the input of shaping circuit 1, they all are connected with 3 pin of remote-controlled chip CPU, the other end of resistance R 1 is connected with the anodal VCC1 of DC power supply, the other end of resistance R 2 is connected with an end of capacitor C 1, the other end ground connection of capacitor C 1, one end of resistance R 3 is connected with the common port of resistance R 2 with capacitor C 1, the other end of resistance R 3 is connected with the base stage of triode V1, the grounded emitter of triode V1, an end of resistance R 4 is connected with the anodal VCC2 of DC power supply, and the other end of resistance R 4 is connected with the collector electrode of triode V1, one end of resistance R 5 is connected with the collector electrode of triode V1, and the other end of resistance R 5 is put output a for looking.Shaping circuit 3 comprises resistance R 6, resistance R 7, resistance R 8, resistance R 9, resistance R 10, resistance R 11, resistance R 12, resistance R 13, resistance R 14, capacitor C 2 and triode V2, match circuit 4 comprises resistance R 15, resistance R 16, resistance R 17, capacitor C 3, capacitor C 4, capacitor C 5, capacitor C 6 and triode V3, one end of resistance R 7 is as the input of shaping circuit 3, it is connected with 5 pin of remote-controlled chip CPU, the other end of resistance R 7 is connected with an end of resistance R 6, the other end of resistance R 6 is connected with the anodal VCC1 of DC power supply, one end of resistance R 8 is connected with the common port of resistance R 6 with resistance R 7, the other end ground connection of resistance R 8, one end of resistance R 9 is connected with the common port of resistance R 6 with resistance R 7, the other end of resistance R 9 is connected with an end of resistance R 10, the other end ground connection of resistance R 10, one end of capacitor C 2 is connected with the common port of resistance R 9 with resistance R 10, the other end ground connection of capacitor C 2, one end of resistance R 11 is connected with the common port of resistance R 9 with resistance R 10, the other end of resistance R 11 is connected with the base stage of triode V2, the grounded emitter of triode V2, one end of resistance R 12 is connected with the base stage of triode V2, the other end of resistance R 12 is connected with an end of resistance R 13, the other end of resistance R 13 is connected with the anodal VCC1 of DC power supply, the common port of resistance R 12 and resistance R 13 is connected with an end of an end of resistance R 14 and capacitor C 3, the other end of resistance R 14 is connected with the collector electrode of triode V2, the other end of capacitor C 3 and resistance R 15, resistance R 16, capacitor C 4 is connected with the common port of capacitor C 5, the other end ground connection of resistance R 15, the other end of resistance R 16 is connected with the emitter of triode V3, the other end ground connection of capacitor C 4, the other end of capacitor C 5 is connected with the emitter of triode V3, one end of resistance R 17 is connected with the collector electrode of triode V3, the other end of resistance R 17 is connected with the anodal V CC2 of DC power supply, one end of capacitor C 6 is connected with the collector electrode of triode V3, and the other end of capacitor C 6 is put output a for looking.Amplifying circuit 5 comprises resistance R 18, resistance R 19, resistance R 20 and triode V4, high peaking circuit 6 comprises resistance R 21 and capacitor C 7, output circuit 7 comprises resistance R 22, resistance R 23, resistance R 24, triode V5, diode V6, triode V3, resistance R 17, capacitor C 6, one end of resistance R 18 is as the input of amplifying circuit 5, it is connected with 23 pin of remote-controlled chip CPU, the other end of resistance R 18 is connected with the base stage of triode V4, one end of resistance R 19 is connected with the base stage of triode V4, the other end ground connection of resistance R 19, the grounded emitter of triode V4, one end of resistance R 20 is connected with the anodal VCC1 of DC power supply, the other end of resistance R 20 is connected with the collector electrode of triode V4, resistance R 21 is in parallel with capacitor C 7, one end of this parallel circuits is connected with the collector electrode of triode V4, the other end is connected with the base stage of triode V5, one end of resistance R 22 is connected with the anodal VCC1 of DC power supply, the other end of resistance R 22 is connected with the substrate of triode V5, the emitter of triode V5 is connected with the anodal VCC1 of DC power supply, one end of resistance R 23 is connected with the collector electrode of triode V5, the other end ground connection of resistance R 23, the positive pole of diode V6 is connected with the collector electrode of triode V5, the negative pole of diode V6 is connected with an end of resistance R 24, the other end of resistance R 24 is connected with the base stage of triode V3, one end of resistance R 17 is connected with DC power supply VCC2, the other end of resistance R 17 is connected with the collector electrode of triode V3, one end of capacitor C 6 is connected with the collector electrode of triode V3, and the other end of capacitor C 6 is put output a for looking.Also comprise resistance R 25, resistance R 26, resistance R 27, resistance R 28 and resistance R 29, one end of resistance R 25 is connected with DC power supply VCC1, the other end of resistance R 25 is connected with an end of resistance R 26, the other end ground connection of resistance R 26, one end of resistance R 27 is connected with the common port of resistance R 25 with resistance R 26, the other end of resistance R 27 is connected with an end of resistance R 29, the other end of resistance R 29 is video signal input terminal b, it is connected with intermediate level circuit in the main frame core, one end of resistance R 28 is connected with the common port of resistance R 27 with resistance R 29, and the other end of resistance R 28 is connected with the base stage of triode V3.Wherein VCC1 is 12V, and VCC2 is 100V.The anodal VCC1 of resistance R 25, resistance R 26, resistance R 27, resistance R 28 and DC power supply provides an operating potential for the base stage of triode V3.
Claims (8)
1, a kind of remote control black and white television set, comprise picture tube, have main frame core, remote control transmitter and the receiver of remote-control sytem of remote control circuit, it is characterized in that, remote control circuit comprises remote-controlled chip (CPU), intednsity circuit, contrast control circuit and character display circuit, remote-controlled chip (CPU) adopts GMS44508, and (34) pin of remote-controlled chip (CPU) is connected with the output of receiver of remote-control sytem; The input of intednsity circuit is connected with (3) pin of remote-controlled chip (CPU), and output is put output (a) for looking, and looks to put output (a) and be connected with picture tube; The input of contrast control circuit is connected with (5) pin of remote-controlled chip (CPU), and output is put output (a) for looking; The input of character display circuit is connected with (23) pin of remote-controlled chip (CPU), and output is put output (a) for looking.
2, remote control black and white television set according to claim 1, it is characterized in that, intednsity circuit comprises shaping circuit (1) and amplifying circuit (2), the input of shaping circuit (1) is the input of intednsity circuit, it is connected with (3) pin of remote-controlled chip (CPU), the output of shaping circuit (1) is connected with the input of amplifying circuit (2), and the output of amplifying circuit (2) is put output (a) for looking.
3, remote control black and white television set according to claim 2, it is characterized in that, shaping circuit (1) comprises resistance (R1), resistance (R2), resistance (R3) and electric capacity (C1), amplifying circuit (2) comprises resistance (R4), resistance (R5) and triode (V1), one end of resistance (R1) and resistance (R2) is as the input of shaping circuit (1), they all are connected with (3) pin of remote-controlled chip (CPU), the other end of resistance (R1) is connected with the positive pole (VCC1) of DC power supply, the other end of resistance (R2) is connected with an end of electric capacity (C1), the other end ground connection of electric capacity (C1), one end of resistance (R3) is connected with the common port of resistance (R2) with electric capacity (C1), the other end of resistance (R3) is connected with the base stage of triode (V1), the grounded emitter of triode (V1), one end of resistance (R4) is connected with the positive pole (VCC2) of DC power supply, the other end of resistance (R4) is connected with the collector electrode of triode (V1), one end of resistance (R5) is connected with the collector electrode of triode (V1), and the other end of resistance (R5) is put output (a) for looking.
4, remote control black and white television set according to claim 1, it is characterized in that, contrast control circuit comprises shaping circuit (3) and match circuit (4), the input of shaping circuit (3) is the input of contrast control circuit, it is connected with (5) pin of remote-controlled chip (CPU), the output of shaping circuit (3) is connected with the input of match circuit (4), and the output of match circuit (4) is put output (a) for looking.
5, remote control black and white television set according to claim 4, it is characterized in that, shaping circuit (3) comprises resistance (R6), resistance (R7), resistance (R8), resistance (R9), resistance (R10), resistance (R11), resistance (R12), resistance (R13), resistance (R14), electric capacity (C2) and triode (V2), match circuit (4) comprises resistance (R15), resistance (R16), resistance (R17), electric capacity (C3), electric capacity (C4), electric capacity (C5), electric capacity (C6) and triode (V3), one end of resistance (R7) is as the input of shaping circuit (3), it is connected with (5) pin of remote-controlled chip (CPU), the other end of resistance (R7) is connected with an end of resistance (R6), the other end of resistance (R6) is connected with the positive pole (VCC1) of DC power supply, one end of resistance (R8) is connected with the common port of resistance (R6) with resistance (R7), the other end ground connection of resistance (R8), one end of resistance (R9) is connected with the common port of resistance (R6) with resistance (R7), the other end of resistance (R9) is connected with an end of resistance (R10), the other end ground connection of resistance (R10), one end of electric capacity (C2) is connected with the common port of resistance (R9) with resistance (R10), the other end ground connection of electric capacity (C2), one end of resistance (R11) is connected with the common port of resistance (R9) with resistance (R10), the other end of resistance (R11) is connected with the base stage of triode (V2), the grounded emitter of triode (V2), one end of resistance (R12) is connected with the base stage of triode (V2), the other end of resistance (R12) is connected with an end of resistance (R13), the other end of resistance (R13) is connected with the positive pole (VCC1) of DC power supply, the common port of resistance (R12) and resistance (R13) is connected with an end of an end of resistance (R14) and electric capacity (C3), the other end of resistance (R14) is connected with the collector electrode of triode (V2), the other end of electric capacity (C3) and resistance (R15), resistance (R16), electric capacity (C4) is connected with the common port of electric capacity (C5), the other end ground connection of resistance (R15), the other end of resistance (R16) is connected with the emitter of triode (V3), the other end ground connection of electric capacity (C4), the other end of electric capacity (C5) is connected with the emitter of triode (V3), one end of resistance (R17) is connected with the collector electrode of triode (V3), the other end of resistance (R17) is connected with the positive pole (VCC2) of DC power supply, one end of electric capacity (C6) is connected with the collector electrode of triode (V3), and the other end of electric capacity (C6) is put output (a) for looking.
6, remote control black and white television set according to claim 1, it is characterized in that, character display circuit comprises amplifying circuit (5), high peaking circuit (6) and output circuit (7), the input of amplifying circuit (5) is the input of character display circuit, it is connected with (23) pin of remote-controlled chip (CPU), the output of amplifying circuit (5) is connected with the input of high peaking circuit (6), the output of high peaking circuit (6) is connected with the input of output circuit (7), and the output of output circuit (7) is put output (a) for looking.
7, remote control black and white television set according to claim 6, it is characterized in that, amplifying circuit (5) comprises resistance (R18), resistance (R19), resistance (R20) and triode (V4), high peaking circuit (6) comprises resistance (R21) and electric capacity (C7), output circuit (7) comprises resistance (R22), resistance (R23), resistance (R24), triode (V5), diode (V6), triode (V3), resistance (R17), electric capacity (C6), one end of resistance (R18) is as the input of amplifying circuit (5), it is connected with (23) pin of remote-controlled chip (CPU), the other end of resistance (R18) is connected with the base stage of triode (V4), one end of resistance (R19) is connected with the base stage of triode (V4), the other end ground connection of resistance (R19), the grounded emitter of triode (V4), one end of resistance (R20) is connected with the positive pole (VCC1) of DC power supply, the other end of resistance (R20) is connected with the collector electrode of triode (V4), resistance (R21) is in parallel with electric capacity (C7), one end of this parallel circuits is connected with the collector electrode of triode (V4), the other end is connected with the base stage of triode (V5), one end of resistance (R22) is connected with the positive pole (VCC1) of DC power supply, the other end of resistance (R22) is connected with the base stage of triode (V5), the emitter of triode (V5) is connected with the positive pole (VCC1) of DC power supply, one end of resistance (R23) is connected with the collector electrode of triode (V5), the other end ground connection of resistance (R23), the positive pole of diode (V6) is connected with the collector electrode of triode (V5), the negative pole of diode (V6) is connected with an end of resistance (R24), the other end of resistance (R24) is connected with the base stage of triode (V3), one end of resistance R 17 is connected with DC power supply VCC2, the other end of resistance R 17 is connected with the collector electrode of triode V3, one end of capacitor C 6 is connected with the collector electrode of triode V3, and the other end of capacitor C 6 is put output a for looking.
8, according to claim 5,6 or 7 described remote control black and white television sets, it is characterized in that, also comprise resistance (R25), resistance (R26), resistance (R27), resistance (R28) and resistance (R29), one end of resistance (R25) is connected with DC power supply VCC1, the other end of resistance (R25) is connected with an end of resistance (R26), the other end ground connection of resistance (R26), one end of resistance (R27) is connected with the common port of resistance (R25) with resistance (R26), the other end of resistance (R27) is connected with an end of resistance (R29), the other end of resistance (R29) is video signal input terminal (b), it is connected with intermediate level circuit in the main frame core, one end of resistance (R28) is connected with the common port of resistance (R27) with resistance (R29), and the other end of resistance (R28) is connected with the base stage of triode (V3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98221044 CN2333132Y (en) | 1998-05-06 | 1998-05-06 | Remote-control black-and-white television |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98221044 CN2333132Y (en) | 1998-05-06 | 1998-05-06 | Remote-control black-and-white television |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2333132Y true CN2333132Y (en) | 1999-08-11 |
Family
ID=33972703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98221044 Expired - Fee Related CN2333132Y (en) | 1998-05-06 | 1998-05-06 | Remote-control black-and-white television |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2333132Y (en) |
-
1998
- 1998-05-06 CN CN 98221044 patent/CN2333132Y/en not_active Expired - Fee Related
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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 |