CN2342528Y - Character change-over device for TV, displayer image and screen display - Google Patents
Character change-over device for TV, displayer image and screen display Download PDFInfo
- Publication number
- CN2342528Y CN2342528Y CN 98220437 CN98220437U CN2342528Y CN 2342528 Y CN2342528 Y CN 2342528Y CN 98220437 CN98220437 CN 98220437 CN 98220437 U CN98220437 U CN 98220437U CN 2342528 Y CN2342528 Y CN 2342528Y
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- electronic switch
- resistance
- alternative electronic
- character
- selecting side
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Abstract
The utility model relates to a character change-over device for a television, a displayer image and screen display. The utility model is used for multimedia display receiver. The input end of a processing unit of a color television is connected with a character pulse signal OSD; the input end of the processing unit is connected with the end of an input passage IN2 of a two-selecting-one electronic change-over switch N1; the end of the input passage IN1 of the N1 is connected with the OSD; the output end of the N1 is connected with the end of the input passage IN2 of a two-selecting-one electronic change-over switch N2; the end of the input passage IN1 of the N2 is connected with a signal of the displayer image; the output end of the N2 is connected with a video amplifying circuit of a receiver; the selecting ends SW of the N1 and the N2 are connected with a change-over control circuit. The utility model can change over the characters of the television, the displayer image and the screen display, and has simple structure.
Description
The utility model belongs to TV receiver circuit, is specifically related to TV, display image and screen display character and switches.
Before the utility model was made, television receiver can not normally receive the display picture intelligence, so do not consider the switching of TV image, display image.Simultaneously traditional video screen display circuit adopts the mode of stack, and character directly is superimposed upon on the TV image.For character can be shown, must make character level be higher than the TV image level.Very bright on the screen like this, character more for a long time, whole screen is bright excessively, image can be out of shape because of line is excessive.Character is crossed the bright subjectivity that influences and is watched effect simultaneously.Owing to adopt stacked system, the TV image variation can cause the superincumbent character change of stack in addition, to the fuzzy unreal sensation of people.And do not have screen character to show on the traditional monitor, and be to use the potentiometer manual adjustment, function is limited, and inconsistent with the on-screen menu interface under the TV mode, can not satisfy the requirement of multimedia display receiver.
The utility model provides a kind of current collection to look to switch with monitor signal and screen character switches one and circuit is simple, adjust easy switching device shifter in order to address the above problem.
The utility model is a kind of TV, display image and screen display character switching device shifter; The OSD input termination character pulse signal OSD of color TV processing unit N3, the input channel IN2 end of the output termination alternative electronic switch N1 of color TV processing unit N3, the input channel IN1 termination character pulse signal OSD of alternative electronic switch N1 connects the character clamp circuit simultaneously, and the output OUT of alternative electronic switch N1 connects the input channel IN2 end of alternative electronic switch N2; The input channel IN1 termination display picture intelligence of alternative electronic switch N2, the output OUT of alternative electronic switch N2 connects multimedia display receiver video amplifier circuit; The selecting side SW of alternative electronic switch N1, N2 connects control switching circuit altogether.
Described TV, display image and screen display character switching device shifter, the character clamp circuit is resistance R 10 1 termination powers+12V voltage, and the end after another termination capacitor C 8 and resistance R 9 parallel connections is connected with the input channel IN1 end of alternative electronic switch N1 by diode simultaneously; Capacitor C 8 and resistance R 9 be ground connection respectively.
Described TV, display image and screen display character switching device shifter, to be the TV/VGA control signal be connected to the selecting side SW of alternative electronic switch N1 by resistance R 1 to control switching circuit, and the resistance R 2 one end ground connection other ends are connected to the selecting side SW of alternative electronic switch N1; The TV/VGA control signal is connected to the selecting side SW of alternative electronic switch N2 by resistance R 12, diode VD5, character pulse gating switch YL links to each other with triode V1 base stage by resistance R 31, triode V1 collector electrode connects power supply+12V voltage, triode V1 emitter is connected to the selecting side SW of alternative electronic switch N2 by resistance R 11, diode VD4, and row field pulse HD, VD are connected to the selecting side SW of alternative electronic switch N2 respectively by resistance R 13, R14 and diode VD6, VD7; Another termination power of capacitor C 7 one end ground connection+12V voltage, resistance R 15 1 end ground connection other end diode VD4 are connected to the selecting side SW of alternative electronic switch N2.
Advantage of the present utility model and good effect are: when the TV/VGA control signal was selected TV or display, the selection that can export tv state signal or display state signal was switched; When character pulse gating switch YL selects character, can carry out the switching of TV image signal and screen display character signal simultaneously, also can carry out the switching of display picture intelligence and screen display character signal.
Below in conjunction with accompanying drawing the utility model is described in further detail.
Fig. 1 is the circuit diagram of an embodiment of the utility model.
Embodiment:
The TV that the multimedia display receiver is used, display image and screen display character switching device shifter, its circuit as shown in Figure 1, shown in the concrete model of element see Table 1.Its model of color TV processing unit N3 is 3 primary colours R of the OSD input of TB1231N, G, B end meets character pulse signal OSD respectively by capacitor C 4, C5, C6 R, G, B end, and the R of its output, G, B end connect IN2.2, IN2.1, the IN2.0 end that its model of alternative electronic switch N1 is the input channel IN2 end of AN5862K by resistance R 28, R29, R30 respectively; IN1.2, the IN1.1 of the input channel IN1 end of alternative electronic switch N1, IN1.0 connect R, G, the B end of character pulse signal OSD respectively by capacitor C 3, C2, C1; R, the G of character pulse signal OSD, B end are respectively by resistance R 8, R7, R6 ground connection simultaneously, resistance R 10 1 termination powers+12V voltage, end after another termination capacitor C 8 and resistance R 9 parallel connections, resistance R 10 is connected with IN1.2, IN1.1, the IN1.0 of the input channel IN1 end of alternative electronic switch N1 by diode VD1, VD2, VD3 respectively simultaneously; Capacitor C 8 and resistance R 9 be ground connection respectively; OUT0, the OUT1 of the output OUT of alternative electronic switch N1, OUT2 are connected with input channel IN2 end IN2.2, IN2.1, the IN2.0 end of alternative electronic switch N2 by resistance R 16, R17, R18 and resistance R 25, R26, R27 respectively; The TV/VGA control signal is connected to the selecting side SW of alternative electronic switch N1 by resistance R 1, and the resistance R 2 one end ground connection other ends are connected to the selecting side SW of alternative electronic switch N1; Power supply termination+12V voltage of alternative electronic switch N1, GND end and NC end are connected to ground altogether.Input channel IN1 end IN1.0, the IN1.1 of alternative electronic switch N2, IN1.2 connect B, G, the R end of display picture intelligence respectively by resistance R 19, R20, R21, OUT0, the OUT1 of the output OUT of alternative electronic switch N2, OUT2 connect multimedia display receiver video amplifier circuit by resistance R 22, R23, R24 respectively; It is the selecting side SW of AN5862K that the TV/VGA control signal is connected to its model of alternative electronic switch N2 by resistance R 12, diode VD5, character pulse gating switch YL links to each other with triode V1 base stage by resistance R 31, triode V1 collector electrode connects power supply+12V voltage, triode V1 emitter is connected to the selecting side SW of alternative electronic switch N2 by resistance R 11, diode VD4, and row field pulse HD, VD are connected to the selecting side SW of alternative electronic switch N2 respectively by resistance R 13, R14 and diode VD6, VD7; Another termination power of capacitor C 7 one end ground connection+12V voltage, resistance R 15 1 end ground connection, the other end is connected to the selecting side SW of alternative electronic switch N2.Character pulse gating switch YL is by R3, R5 ground connection; Character pulse gating switch YL is connected to the selecting side SW of color TV processing unit N3 by R3, R4; Power supply termination+12V voltage of alternative electronic switch N1, GND end and NC end are connected to ground altogether.When alternative electronic switch N1 and N2 are low level as its control pin SW, the input signal of output OUT output channel IN1; When its control pin SW is high level, the input signal of output OUT output channel IN2.Under TV mode, the TV/VGA control signal is a high level, and at this moment the control end SW of alternative electronic switch N1 and N2 is high level, and this moment, the signal of their passage IN1 input was all inoperative.TV image signal and character pulse signal OSD are input to color TV processing unit N3 simultaneously, and selecting color TV processing unit N3 output TV image signal by gating switch YL still is character pulse signal OSD; The output of color TV processing unit N3 is from the passage IN2 input of alternative electronic switch N1, from the output OUT output of alternative electronic switch N1; From the passage IN2 input of alternative electronic switch N2,, deliver to multimedia display receiver video amplifier circuit again from the output OUT output of alternative electronic switch N2.Under the display mode, the TV/VGA control signal is a low level, and at this moment the control end SW of alternative electronic switch N1 is a low level, and this moment, the signal of his passage IN2 input was all inoperative.Character pulse signal OSD is input to the passage IN1 of alternative electronic switch N1, import from the passage IN2 of alternative electronic switch N2 again from the output OUT output of alternative electronic switch N1, the display picture intelligence is from the passage IN1 input of alternative electronic switch N2; When gating switch YL is high level, making the control end SW of alternative electronic switch N2 by triode V1 is high level, the character pulse of the output OUT output IN2 input of alternative electronic switch N2 is delivered to multimedia display receiver video amplifier circuit; When gating switch YL is that low level is gone field pulse HD, VD during also for low level simultaneously, the control end SW of alternative electronic switch N2 is a low level, the display picture intelligence of the output OUT output IN1 input of alternative electronic switch N2 is delivered to multimedia display receiver video amplifier circuit.HD, VD become high level when the row field pulse arrives in addition, the control end SW that makes alternative electronic switch N2 is a high level, the input of the output OUT output IN2 of alternative electronic switch N2, this moment, the passage IN2 of alternative electronic switch N2 was the NULI character pulse, there is not TV image again, so the output black level is realized row field blanking function.
Table 1:
| Sequence number | Type | Item | Model |
| 1 | Resistance | R1 | 1K |
| 2 | Resistance | R2 | 10K |
| 3 | Resistance | R3 | 100K |
| 4 | Resistance | R4 | 1.2K |
| 5 | Resistance | R5 | 2.7K |
| 6 | Resistance | R6 | 2.7K |
| 7 | Resistance | R7 | 2.7K |
| 8 | Resistance | R8 | 10K |
| 9 | Resistance | R9 | 68K |
| 10 | Resistance | R10 | 2.2K |
| 11 | Resistance | R11 | 2.2K |
| 12 | Resistance | R12 | 10K |
| 13 | Resistance | R13 | 10K |
| 14 | Resistance | R14 | 10K |
| 15 | Resistance | R15 | 220K |
| 16 | Resistance | R16 | 220K |
| 17 | Resistance | R17 | 220K |
| 18 | Resistance | R18 | 220K |
| 19 | Resistance | R19 | 220K |
| 20 | Resistance | R20 | 220K |
| 21 | Resistance | R21 | 220K |
| 22 | Resistance | R22 | 220K |
| 23 | Resistance | R23 | 220K |
| 24 | Resistance | R24 | 220K |
| 25 | Resistance | R25 | 220K |
| 26 | Resistance | R26 | 220K |
| 27 | Resistance | R27 | 220K |
| 28 | Resistance | R28 | 270K |
| 29 | Resistance | R29 | 270K |
| 30 | Resistance | R30 | 270K |
| 31 | Resistance | R31 | 1K |
| 32 | Electric capacity | C1 | 0.1U |
| 33 | Electric capacity | C2 | 0.1U |
| 34 | Electric capacity | C3 | 0.1U |
| 35 | Electric capacity | C4 | 0.1U |
| 36 | Electric capacity | C5 | 0.1U |
| 37 | Electric capacity | C6 | 0.1U |
| 38 | Electric capacity | C7 | 0.1U |
| 39 | Electric capacity | C8 | 47U |
| 40 | Integrated circuit | N1 | AN5862K |
| 41 | Integrated circuit | N2 | AN5862K |
| 42 | Integrated circuit | N3 | TB1231N |
| 43 | Triode | V1 | 2SC1815 |
| 44 | Diode | VD1 | 1SS133 |
| 45 | Diode | VD2 | 1SS133 |
| 46 | Diode | VD3 | 1SS133 |
| 47 | Diode | VD4 | 1SS133 |
| 48 | Diode | VD5 | 1SS133 |
| 49 | Diode | VD6 | 1SS133 |
| 50 | Diode | VD7 | 1SS133 |
Claims (3)
1. a TV, display image and screen display character switching device shifter, the OSD input termination character pulse signal OSD of color TV processing unit N3, it is characterized in that: the input channel IN2 end of the output termination alternative electronic switch N1 of color TV processing unit N3, the input channel IN1 termination character pulse signal OSD of alternative electronic switch N1 connects the character clamp circuit simultaneously, and the output OUT of alternative electronic switch N1 connects the input channel IN2 end of alternative electronic switch N2; The input channel IN1 termination display picture intelligence of alternative electronic switch N2, the output OUT of alternative electronic switch N2 connects multimedia display receiver video amplifier circuit; The selecting side SW of alternative electronic switch N1, N2 connects control switching circuit altogether.
2. TV according to claim 1, display image and screen display character switching device shifter, it is characterized in that: the end behind resistance R 10 1 termination powers in the character clamp circuit+12V voltage, another termination capacitor C 8 and resistance R 9 parallel connections is connected with the input channel IN1 end of alternative electronic switch N1 by diode simultaneously; Capacitor C 8 and resistance R 9 be ground connection respectively.
3. TV according to claim 1 and 2, display image and screen display character switching device shifter, it is characterized in that: the TV/VGA control signal is connected to the selecting side SW of alternative electronic switch N1 by resistance R 1 in control switching circuit, and the resistance R 2 one end ground connection other ends are connected to the selecting side SW of alternative electronic switch N1; The TV/VGA control signal is connected to the selecting side SW of alternative electronic switch N2 by resistance R 12, diode VD5, character pulse gating switch YL links to each other with triode V1 base stage by resistance R 31, triode V1 collector electrode connects power supply+12V voltage, triode V1 emitter is connected to the selecting side SW of alternative electronic switch N2 by resistance R 11, diode VD4, and row field pulse HD, VD are connected to the selecting side SW of alternative electronic switch N2 respectively by resistance R 13, R14 and diode VD6, VD7; Another termination power of capacitor C 7 one end ground connection+12V voltage, the resistance R 15 1 end ground connection other ends are connected to the selecting side SW of alternative electronic switch N2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98220437 CN2342528Y (en) | 1998-03-12 | 1998-03-12 | Character change-over device for TV, displayer image and screen display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98220437 CN2342528Y (en) | 1998-03-12 | 1998-03-12 | Character change-over device for TV, displayer image and screen display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2342528Y true CN2342528Y (en) | 1999-10-06 |
Family
ID=33972230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98220437 Expired - Fee Related CN2342528Y (en) | 1998-03-12 | 1998-03-12 | Character change-over device for TV, displayer image and screen display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2342528Y (en) |
-
1998
- 1998-03-12 CN CN 98220437 patent/CN2342528Y/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 | ||
| C53 | Correction of patent for invention or patent application | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE; FROM: QINGDAO HAI XIN GROUP CO., LTD. TO: QINGDAO HISENSE ELECTRIC APPLIANCE CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Patentee after: Qingdao Hisense Electric Co., Ltd. Co-patentee before: Qingdao Haixin Group Technology Centre Patentee before: Haixin Group Co., Qingdao City |
|
| 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 |