CN2264450Y - Internally-arranged sound red infrared transmitting device of television - Google Patents
Internally-arranged sound red infrared transmitting device of television Download PDFInfo
- Publication number
- CN2264450Y CN2264450Y CN 96213838 CN96213838U CN2264450Y CN 2264450 Y CN2264450 Y CN 2264450Y CN 96213838 CN96213838 CN 96213838 CN 96213838 U CN96213838 U CN 96213838U CN 2264450 Y CN2264450 Y CN 2264450Y
- Authority
- CN
- China
- Prior art keywords
- audio signal
- amplifier
- light emission
- infrared light
- audio frequency
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Optical Communication System (AREA)
Abstract
The utility model relates to an internally-arranged sound infrared transmitting device of a TV, which comprises a transmitting device which is composed of an audio amplifier and an infrared luminous tube, and a receiver device which is composed of an infrared receiving tube, an audio signal processing amplifier and an earphone. The input end of the audio amplifier is an aural signal input end; the entire transmitting device is arranged in a TV and the infrared receiving tube is arranged on the panel of the TV. The utility model has the advantages of convenient operation, simple structure design, low cost, no electromagnetic wave radiation pollution, no effect on the actions of users, etc.
Description
The utility model relates to a kind of television audio radio transmission device.
Traditional television set adopts wired transmission sound accompanying method in order not disturb other people, promptly establishes earphone socket on television set, and the user listens to the sound accompaniment of TV alone by earphone.The shortcoming of this kind method is: being subjected to the restriction of line at first in use, bringing in the action restriction to the user, secondly is that lead uses to have grown easily and fractures.
The purpose of this utility model is to provide a kind of utilization to place the infra red communication means in the television set to finish the television internal sound accompaniment infra red communication means that television field frame transmits.
Dispensing device of the present utility model comprises: audio frequency amplifier and infrared light emission pipe, and receiving system comprises: infrared receiver tube, Audio Signal Processing are gone into big device and earphone; It is characterized in that: described audio frequency amplifier and infrared light emission pipe place in the machine, the infrared light emission pipe is arranged on the dedicated window of TV set panel, the input of audio frequency amplifier is audio signal input A, when connecting non-remote-controlled television set, described audio signal input is connected to tv volume potentiometer signal end; When connecting remote-controlled television set, described audio signal input is connected to the voltage-controlled amplifier prime, the FM frequency discrimination of promptly putting integrated circuit in sound accompaniment end or the audio frequency end that postemphasises that occurs frequently; The output of described audio frequency amplifier is connected with the infrared light emission pipe; The infrared receiver tube of described receiving system is connected with the Audio Signal Processing amplifier input terminal, and the load of Audio Signal Processing amplifier is an earphone.
The utlity model has performance easy to use, that circuit design is simple, finished product is low, stable, no electromagnetism wave amplitude is penetrated pollution, is not influenced effects such as user's action.
The drawing explanation:
Fig. 1 is a dispensing device theory diagram of the present utility model.
Fig. 2 is a receiving system theory diagram of the present utility model.
Fig. 3 is the embodiment circuit diagram of dispensing device of the present utility model.
Fig. 4 is the embodiment circuit diagram of receiving system of the present utility model.
Embodiment of the present utility model sees Fig. 3,4, and emitter is installed in the television set, its infrared light emission pipe LED
1, can be installed on the dedicated window of TV set panel any place, emitter is by input A, audio frequency amplifier IC
1, drive triode BG
1Form infrared light emission pipe LED
1, be connected on BG
1Collector electrode.Input A can be connected with the volume controlled stage low frequency signal end before of television set, its objective is the control that is not subjected to the tv volume adjuster for the size that makes this device transmit television field frame sound, this has just been avoided television set speaker volume pass when dead, there is not infrared sound accompaniment output, the actual size of listening to volume of earphone is regulated by volume potentiometer on the earphone.Receiving system is by infrared receiver tube LED
2, integrated transporting discharging IC
2, power discharging IC
3Form with earphone.Integrated transporting discharging IC
2Load W
1Be volume control potentiometer, receiving system is battery-powered, and emitter uses low-voltage dc power supply in the television set (5～20V all can).
Claims (1)
1, a kind of television internal sound accompaniment infra red communication means, its dispensing device comprises: audio frequency amplifier and infrared light emission pipe, receiving system comprises: infrared receiver tube, Audio Signal Processing amplifier and earphone; It is characterized in that: described audio frequency amplifier and infrared light emission pipe place in the machine, the infrared light emission pipe is arranged on the dedicated window of TV set panel, the input of audio frequency amplifier is audio signal input A, when connecting non-remote-controlled television set, described audio signal input is connected to tv volume potentiometer signal end; When connecting remote-controlled television set, described audio signal input is connected to the voltage-controlled amplifier prime, the FM frequency discrimination of promptly putting integrated circuit in sound accompaniment end or the audio frequency end that postemphasises that occurs frequently; The output of described audio frequency amplifier is connected with the infrared light emission pipe; The infrared receiver tube of described receiving system is connected with the Audio Signal Processing amplifier input terminal, and the load that Audio Signal Processing is gone into big device is an earphone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96213838 CN2264450Y (en) | 1996-06-24 | 1996-06-24 | Internally-arranged sound red infrared transmitting device of television |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96213838 CN2264450Y (en) | 1996-06-24 | 1996-06-24 | Internally-arranged sound red infrared transmitting device of television |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2264450Y true CN2264450Y (en) | 1997-10-08 |
Family
ID=33896082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96213838 Expired - Fee Related CN2264450Y (en) | 1996-06-24 | 1996-06-24 | Internally-arranged sound red infrared transmitting device of television |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2264450Y (en) |
-
1996
- 1996-06-24 CN CN 96213838 patent/CN2264450Y/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 |