CN2192998Y - TV remote controller universal with kara Oke - Google Patents
TV remote controller universal with kara Oke Download PDFInfo
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- CN2192998Y CN2192998Y CN 94209062 CN94209062U CN2192998Y CN 2192998 Y CN2192998 Y CN 2192998Y CN 94209062 CN94209062 CN 94209062 CN 94209062 U CN94209062 U CN 94209062U CN 2192998 Y CN2192998 Y CN 2192998Y
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Abstract
The utility model discloses an externally attached type TV remote controller universal with kara Oke. The utility model is mainly composed of a high-frequency tuner, a microcomputer control circuit, a power circuit, a matrix circuit, a remote control emitter, a receiver, a digital display, a switching circuit, and a test signal generator. An intermediate amplifying and video wave detection circuit, an RF modulating circuit, and an input circuit of kara Oke are respectively connected among the high-frequency tuner, the microcomputer control circuit, and an RF output port; the remote control to the TV program searching and channel selection, the channel preforming of 30 to 60 channels, channel switching, volume adjusting, karaoke singing, and AC switching can be realized; the utility model is suitable for any TV, the installation is convenient, and the performance is reliable.
Description
The utility model relates to a kind of TV remote controller, especially a kind of universal external attached type TV remote controller that has Kara OK function, is suitable for any television type.
At present, on the television set of no distant control function, equip remote controller, will open television rear cover usually, on former TV set circuit, install an adjunct circuit additional, in television set, extract relevant signal, carry out remote control.Will suitably reequip former television set like this, the layman is difficult to carry out.
One class external attached type TV remote controller is arranged, with the patent (patent No.: 90218186.6) be representative, adopt the double conversion channel selecting technique usually of " not changing the multifunctional remote controlller of television set ".This class remote controller need not opened television rear cover, connects simply, and is easy for installation, has characteristics such as applied widely.But this class remote controller only has 8 channels gives choosing, and volume control is to extract audio signal from the television set earphone jack, can't carry out volume control to the television set in earless machine transplanting of rice hole.Patent " functional universal the TV remote controller " (patent No.: 90226032) provide another technology, though this patent has overcome the defective of volume control, but adopted put in installing additional in the remote controller, low discharging circuit, the sound accompaniment loud speaker is contained in the outer attached remote controller box, make loudspeaker break away from television set integral body, cause sound accompaniment to break away from the sensation of image to the people.What this patent still adopted simultaneously is to give with 8 selecting device channel selection mode, also has the few defective of channel selection channel.
In addition, this entertainment form of playing Karaoka has been widely used in sound equipment, recorder, recording playback camera and the new television models, but amusement in this way on most of television sets just must be purchased the Karaoke special equipment.
The purpose of this utility model overcomes the deficiency of above-mentioned TV remote controller exactly, provides a kind of and has Kara OK function, remote control control volume, can give the external attached type customary television set remote controller that selects 30～60 channel programs, is applicable to any television set.
The utility model can be realized by following technical proposals.
The utility model mainly is made up of high-frequency tuner (1), microcomputer control circuit (4), power circuit (5), matrix circuit (6), remote control transmitter (7), receiver of remote-control sytem (8), nixie display (9), switching circuit (10), measuring signal generator (12), puts in also being connected with between high-frequency tuner (1), microcomputer control circuit (4) and radio-frequency (RF) output end (RFOUT) and the common composition of video detecting circuit (2), rf modulation circuit (3) and Karaoke input circuit (11).
The analog volume control voltage that produces in the microcomputer control circuit (4) put by the output 34 pin output of micro processor IC1 and in sending into and video detecting circuit (2) in 1 pin of intermediate frequency amplifier IC2 amplify frequency discrimination, to realize volume control; The IF output of high-frequency tuner (1) inserts 8 pin of intermediate frequency amplifier IC2, and the intermediate-freuqncy signal of high-frequency tuner (1) output is amplified frequency discrimination, isolates the Voice ﹠ Video signal; The audio signal of audio output 2 pin of intermediate frequency amplifier IC2 or the output of 3 pin is sent into audio input end 6 pin of radio-frequency modulator IC3 in the rf modulation circuit (3) after W4 adjusts, carry out the audio frequency rf modulations, export by audio frequency radio-frequency (RF) output end 2 pin of IC3 then; The vision signal of the video output terminals 21 pin output of intermediate frequency amplifier IC2 is sent into radio-frequency modulator IC3 after W3 adjusts video inputs 16 pin carry out the video rf modulations, are exported by video radio-frequency (RF) output end 15 pin of IC3 then.
Karaoke input circuit (11) is made of low-frequency amplifier circuit.When carrying out amusement with Karaoke, the Karaoke input circuit amplifies people's audio signal to be adjusted after K switch 1 input radio frequency modulation circuit, carries out the audio frequency rf modulations with 6 pin that are admitted to radio-frequency modulator IC3 after the audio signal of intermediate frequency amplifier IC2 output is mixed simultaneously.
Audio frequency radio-frequency (RF) output end 2 pin of radio-frequency modulator IC3 and video radio frequency go out end 15 pin respectively through linking behind C116, R106 and C114, the R105, and insert input 1 pin of radio frequency amplifier IC4 simultaneously, send into radio frequency amplifier IC4 simultaneously after will mixing through the audio frequency radiofrequency signal of rf modulations and video radiofrequency signal and amplify, by radio frequency amplifier IC43 pin radiofrequency signal is sent to radio-frequency (RF) output end RFOUT output at last.
Compared with prior art, because the utility model adopts the whole remote control system of microcomputerized control; Put and video detecting circuit and rf modulation circuit in adopting independently, make audio signal and vision signal after rf modulations, can collect output simultaneously respectively again; Adopt the synthetic control mode channel selection of voltage, can make the channel selection channel increase to 30～60; Introduce the Karaoke circuit and can realize that people are for one's own enjoyment, therefore have more advance, practicality and versatility.The utility model need not turned on television set and can conveniently install, dependable performance, after using this device for any television set, all can realize TV programme is searched for channel selection, 30～60 channels give and putting, channel switches, storage memory, adjusting volume, karaoke, the alternating-current switch machine carries out remote control control.
Fig. 1, Fig. 2 are accompanying drawings of the present utility model.
Fig. 1 is a principle assumption diagram of the present utility model, and wherein: 1 is high-frequency tuner, and 2 put and video detecting circuit in being, 3 is rf modulation circuit, 4 is microcomputer control circuit, and 5 is power circuit, and 6 is matrix circuit, 7 is remote control transmitter, 8 is receiver of remote-control sytem, and 9 is nixie display, and 10 is on/off circuit, 11 are the Karaoke circuit, and 12 is measuring signal generator.
Its operation principle is: remote control transmitter (7) is used for producing coded pulse, and the infrared signal of emission different frequency is amplified after receiver of remote-control sytem (8) receives this signal, sends into microcomputer control circuit (4) then; Microcomputer control circuit (4) decodes signal, discern, put in order, produces various aanalogvoltages, and sends control signal to each executive circuit.Each executive circuit is realized search channel selection, storage memory according to control voltage execution command, and volume is regulated, functions such as on/off, switching channels.
High-frequency tuner (1) changes the high-frequency signal that receives into intermediate-freuqncy signal to be put and video detecting circuit (2) in delivering to; In put and video detecting circuit (2) amplifies frequency discrimination with this signal, isolate video and audio signal; Vision signal and audio signal are admitted to rf modulation circuit (3) respectively, and are modulated into video radiofrequency signal and audio frequency radiofrequency signal respectively, become the radiofrequency signal output of a certain fixed channel after the mixing, receive for television set.
Karaoke input circuit (11) amplifies people's audio signal adjusts back input radio frequency modulation circuit, and with after the audio signal of intermediate frequency amplifier IC2 output is mixed, be admitted to radio-frequency modulator simultaneously and modulate output, can on television set, hear the sound that oneself is accompanied.
Fig. 2 is a circuit structure diagram of the present utility model, has provided embodiment of the present utility model.
In accompanying drawing 2: 1 is high-frequency tuner, 2 put and video detecting circuit in being, wherein integrated circuit (IC) 2 is intermediate frequency amplifiers, 3 is rf modulation circuit, wherein integrated circuit (IC) 3 is radio-frequency modulators, IC4 is a radio frequency amplifier, and 4 is microcomputer control circuit, and wherein IC1 is a micro processor, 5 is power circuit, 6 is matrix circuit, and 7 is infrared transmitter, and 8 is infrared remote receiver, 9 is nixie display, 10 is on/off circuit, and 11 are the Karaoke input circuit, and K1 is Karaoke input circuit on-off switch.
Micro processor IC1 in the microcomputer control circuit (4) is whole control of remote controller center, it has comprised CPU, ROM, RAM, also has the complete required partial function of digital tuning channel selection, the EAROM that comprises the digital channel selection information of a stored television program channel, volume, brightness, saturation and four analog quantity control circuits of contrast etc.
The utility model can give puts 30 channel programs, and the tuning voltage of respectively giving frequency-selecting road program is to be produced by the voltage synthesis system of micro processor IC1 inside.Give when putting channel selection, under program control, 13 binary add down counters of IC1 inside provide 13 bit digital tuning voltage; During the keying channel selection, EAROM memory by IC1 inside provides digital tuning voltage, 13 D/A converters by IC1 inside become 13 bit digital harmonic ringings the 27 pin output of the control impuls of pulsewidth respective change from IC1, again behind the amplitude limit active power filtering, become the electric tuning sweep voltage of direct current, be input to the VT end of high-frequency tuner (1), thereby realize the channel selection purpose.
6 volume control D/A converters of micro processor IC1 inside, subtract/increase under the commands for controlling what send by infrared transmitter (7) or matrix circuit (6), through the D/A conversion, generation increases/subtracts analog volume control voltage, 34 pin output by IC1, deliver to put and video detecting circuit (2) in 1 pin of intermediate frequency amplifier IC2 amplify behind the frequency discrimination from the output of 2 pin, and then send into radio-frequency modulator (3) modulation back input television set, to realize the remote control adjustment volume.
High-frequency tuner (1) changes the high-frequency signal that receives after the intermediate-freuqncy signal into to be put and video detecting circuit (2) in being delivered to by the IF output, and send into intermediate frequency amplifier IC2 from 7 pin) amplify frequency discrimination, isolate vision signal and audio signal, respectively by 21 pin and 2 pin or the output of 3 pin of intermediate frequency amplifier IC2, deliver to rf modulation circuit (3) and carry out rf modulations then.
After W3 adjusts, send into video inputs 16 pin of radio-frequency modulator IC3 by the vision signal of video output terminals 21 pin of intermediate frequency amplifier IC2 output by capacitor C 113, IC3 inner through the clamper arrangement after, send into the video radio-frequency modulator; Send into the CF signal that also has the carrier frequency oscillation circuit to produce of video radio-frequency modulator simultaneously, the video radio-frequency modulator with after these two kinds of signal modulation, is exported by video radio-frequency (RF) output end 15 pin simultaneously.By the audio signal of audio output 2 pin of intermediate frequency amplifier IC2 or the output of 3 pin after W4 adjusts, switch to audio input end 6 pin that RC compensating network that R108 and C121 form is delivered to radio-frequency modulator IC3 by resistance R 118, amplify through the IC3 internal amplifier, send into the frequency interleaved modulation modulator modulation, and then by exporting by video radio-frequency (RF) output end 2 pin after the secondary modulation of audio frequency radio-frequency modulator.
Mix mutually through behind C114, R105 and C116, the R106 respectively by the video radiofrequency signal of 15 pin of radio-frequency modulator IC3 and the output of 2 pin and audio frequency radiofrequency signal, be fed to band pass filter filtering harmonic component, send into input 1 pin of radio frequency amplifier IC4 then, after amplifying,, send into the TV set aerial jack by radio-frequency (RF) output end mouth RFOUT at last by the output of 3 pin.
Karaoke input circuit (11) mainly is made of low-frequency amplifier circuit, in the connection place of itself and rf modulation circuit (3) an on-off switch K1 is set.When people utilize the Karaoke program of TV station's broadcasting to accompany amusement, Closing Switch K1, this moment, people's accompaniment signal entered the Karaoke input circuit by microphone CK1, through Q101, after straight lotus root amplification of Q102 and W2 adjust, be input to rf modulation circuit (3) by R119 and K switch 1, with in put and the audio signal of video detecting circuit (2) output is mixed audio input end 6 pin of being sent into radio-frequency modulator IC3 simultaneously in the back mutually and carried out rf modulations, after radio frequency amplifier IC4 amplifies, export then, can realize the function of pleasing oneself of playing Karaoka by radio-frequency (RF) output end mouth (RFOUT).
Attached: the integrated circuit that the utility model is involved:
Label model function in the literary composition
IC1 M494B1 micro processor
IC2 TA7680 intermediate frequency amplifies and video detection
IC3 TA7673 radio-frequency modulator
IC4 uPC1651 radio frequency amplifier
Claims (5)
1, a kind of external attached type Karaoke customary television set remote controller, form by high-frequency tuner (1), microcomputer control circuit (4), power circuit (5), matrix circuit (6), remote control transmitter (7), receiver of remote-control sytem (8), nixie display (9), on/off circuit (10), measuring signal generator (12), it is characterized in that: put between high-frequency tuner (1), microcomputer control circuit (4) and radio-frequency (RF) output end (RFOUT), also being connected with and the common composition of video detecting circuit (2), rf modulation circuit (3) and Karaoke input circuit (11).
2, according to the described Karaoke customary television set of claim 1 remote controller, it is characterized in that: the output (34 pin) of micro processor IC1 and the IF output of high-frequency tuner (1) respectively with in put and 1 pin and 8 pin of the intermediate frequency amplifier IC2 of video detecting circuit (2) link, so that the analog volume control voltage of micro processor output and the intermediate-freuqncy signal of high-frequency tuner output are amplified frequency discrimination.
3, according to the described Karaoke customary television set of claim 1 remote controller, it is characterized in that: audio output 2 pin of intermediate frequency amplifier IC2 or 3 pin are linked audio input end 6 pin of radio-frequency modulator IC3 in the rf modulation circuit (3), video output terminals 21 pin of intermediate frequency amplifier IC2 are then linked video inputs 16 pin of radio-frequency modulator IC3, with will in put and video detecting circuit in the audio signal of separating and vision signal deliver to rf modulation circuit (3) respectively and carry out rf modulations.
4, according to the described Karaoke customary television set of claim 1 remote controller, it is characterized in that: Karaoke input circuit (11) is made of low-frequency amplifier circuit, and the people's of its output output audio signal is carried out the audio frequency rf modulations through K switch 1 with audio input end 6 pin that are admitted to radio-frequency modulator IC3 after the audio signal that intermediate frequency amplifier IC2 exports is mixed simultaneously.
5, according to the described Karaoke customary television set of claim 1 remote controller, it is characterized in that: audio frequency radio-frequency (RF) output end 2 pin of radio-frequency modulator IC3 and video radio-frequency (RF) output end 15 pin are respectively through linking behind C116, R106 and C114, the R105, and inserting 1 pin of radio frequency amplifier IC4 simultaneously, 3 pin by radio frequency amplifier IC4 are sent to radio-frequency (RF) output end (RFOUT) output with the radiofrequency signal of amplifying at last.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94209062 CN2192998Y (en) | 1994-04-21 | 1994-04-21 | TV remote controller universal with kara Oke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94209062 CN2192998Y (en) | 1994-04-21 | 1994-04-21 | TV remote controller universal with kara Oke |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2192998Y true CN2192998Y (en) | 1995-03-22 |
Family
ID=33826867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94209062 Expired - Fee Related CN2192998Y (en) | 1994-04-21 | 1994-04-21 | TV remote controller universal with kara Oke |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2192998Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100397527C (en) * | 2001-11-30 | 2008-06-25 | 株式会社第一兴商 | Karaoke remote controller with electronic contents table function |
-
1994
- 1994-04-21 CN CN 94209062 patent/CN2192998Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100397527C (en) * | 2001-11-30 | 2008-06-25 | 株式会社第一兴商 | Karaoke remote controller with electronic contents table function |
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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 |