CN2574319Y - Improved sound radio transmitting and receiving device for TV set - Google Patents
Improved sound radio transmitting and receiving device for TV set Download PDFInfo
- Publication number
- CN2574319Y CN2574319Y CN02279604.5U CN02279604U CN2574319Y CN 2574319 Y CN2574319 Y CN 2574319Y CN 02279604 U CN02279604 U CN 02279604U CN 2574319 Y CN2574319 Y CN 2574319Y
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- circuit
- sound equipment
- television
- equipment wireless
- wireless receiving
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- 230000005540 biological transmission Effects 0.000 claims description 14
- 230000005236 sound signal Effects 0.000 claims description 13
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 230000003321 amplification Effects 0.000 description 6
- 238000003199 nucleic acid amplification method Methods 0.000 description 6
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
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Abstract
The utility model relates to an improved wireless sound transmitting and receiving device for TV sets, which is characterized in that the improved wireless sound transmitting and receiving device comprises a wireless remote control signal sound transmitting and receiving working circuit and a wireless sound receiving and transmitting circuit used for being connected with the working circuit of a TV. When the improved wireless sound transmitting and receiving device and the working circuit of the TV are combined into one body, the utility model not only is helpful for users to realize remote-control use to the TV, but also is capable of making users' voice played via the wireless sound transmitting circuit connected into one body with a remote controller, and the TV. Simultaneously, the utility model can listen through an earphone, and can not influence the rest of families and neighbors. The main working circuits can be widely used in electric appliance products of TV sets, vcds, dvds, etc.
Description
Technical field: the utility model relates to a kind of used as television sound equipment wireless transmission and receives modifying device.
Technical background: existing used as television sound equipment wireless transmitter can't incorporate user's sound in the sound of TV broadcast, like this when people when appreciating TV, sing or when singing in progress music if want to learn, then must open other sound equipment and power amplifying device, could sound playing be come out by microphone and audio amplifier.And when night, the rest that the sound of sound equipment again can interference neighbors.
Summary of the invention: the purpose of this utility model provides a kind of used as television sound equipment wireless transmission and receives modifying device, when the operating circuit of it and television set is combined into one, both helped the user and realized the remote control of television set is used, the sound that sound equipment radio transmitter that again can be through joining together with remote controller and television set make the user broadcasts.Also can listen to simultaneously, can not influence household and neighbours' rest by earphone.
The utility model is to constitute like this, it comprises remote signal sound equipment wireless transmission and receives operating circuit and the sound equipment wireless receiving and the radiating circuit that are used for being connected with the television set operating circuit, remote signal sound equipment wireless transmission and reception operating circuit are by power supply, be connected in the remote control circuitry of both ends of power and sound equipment radio transmitter that remote control circuitry is in parallel and form by the television acoustics wireless receiving circuit that reception and demodulator circuit and audio power amplifying circuit are formed with acoustic-electric conversion element, be connected with earphone on the output of its audio power amplifying circuit, sound equipment wireless receiving and radiating circuit are made up of sound equipment wireless receiving circuit that is in parallel and television acoustics radio transmitter, its " V+ " end is connected with "+B (12V) " end of television tuner assembly circuit, " V-" end is connected with " GND " end of television tuner assembly circuit, the sound equipment wireless receiving circuit is made up of reception and demodulator circuit and audio power amplifying circuit, the audio signal output end of audio power amplifying circuit links to each other with the loudspeaker of television set, and the input of its television acoustics radio transmitter is connected with the audio output of television set.
During this device work, the user can carry out the ballad control to television set by remote control circuitry on the one hand and use; Can convert the high-frequency carrier signal of the amplification that is subjected to the audio signal modulation on the other hand by the sound that the sound equipment radio transmitter sends people to, by sky alignment spatial emission, the effect by sound equipment wireless reception circuit and loudspeaker is reduced to sound with audio signal or plays back simultaneously with sound that TV broadcasts then.Secondly, need listen to alone as the user and television sound volume is transferred to hour by remote control circuitry, the sound equipment radio transmitter that is connected with the television set operating circuit, the sound that television set can be sent converts the high-frequency carrier signal of the amplification that is subjected to the audio signal modulation to, by sky alignment spatial emission, and then audio signal is reduced to sound by television acoustics wireless receiving circuit and earphone thereof.
Than existing television set, the utlity model has and help the user and please oneself, and do not disturb other people remarkable advantage.
Description of drawings: Fig. 1 is the remote signal sound equipment wireless transmission of embodiment and receives the operating circuit theory diagram.
Fig. 2 is remote signal sound equipment wireless transmission and receives working circuit diagram.
Fig. 3 is sound equipment wireless receiving and the radiating circuit theory diagram that is connected with TV set circuit.
Fig. 4 is sound equipment wireless receiving and the radiating circuit figure that is connected with TV set circuit.
Embodiment: the utility model embodiment is characterised in that: comprise remote signal sound equipment wireless transmission and receive operating circuit and the sound equipment wireless receiving and the radiating circuit that are used for being connected with the television set operating circuit, remote signal sound equipment wireless transmission and reception operating circuit are by power supply, be connected in the remote control circuitry of both ends of power and sound equipment radio transmitter that remote control circuitry is in parallel and form by the television acoustics wireless receiving circuit that reception and demodulator circuit and audio power amplifying circuit are formed with acoustic-electric conversion element, be connected with earphone on the output of its audio power amplifying circuit, sound equipment wireless receiving and radiating circuit are made up of sound equipment wireless receiving circuit that is in parallel and television acoustics radio transmitter, its " V+ " end is connected with "+B (12V) " end of television tuner assembly circuit, " V-" end is connected with " GND " end of television tuner assembly circuit, the sound equipment wireless receiving circuit is made up of reception and demodulator circuit and audio power amplifying circuit, the audio signal output end of audio power amplifying circuit links to each other with the loudspeaker of television set, and the input of its television acoustics radio transmitter is connected with the audio output of television set.
In Fig. 2, remote signal sound equipment wireless transmission and to receive the concrete operation principle of the sound equipment radio transmitter in the operating circuit as follows: at first the sound that sends of people is transformed into the signal of telecommunication by acoustic-electric conversion elements BM, this signal of telecommunication enters the high frequency modulated circuit that is made of VT1, R2, R3, C3, C4, C5 through coupling capacitance C1, generation is subjected to the high-frequency carrier signal f1 of this voice signal modulation, and the high-frequency amplifier circuit that this high-frequency carrier signal constitutes via VT2, R4, R5, C6, C7, L1 carries out passing through a day alignment spatial emission after the power amplification.
In Fig. 2, the concrete operation principle of the sound equipment wireless reception circuit in remote signal sound equipment wireless transmission and the reception operating circuit is as follows: the high-frequency carrier signal f2 that the sound equipment radio transmitter that at first will be used for being connected with the television set operating circuit sends passes through by VT3, R6, R7, C10, C11, C12, C13, C14, L2, reception and demodulator circuit filtering high-frequency carrier signal that L3 constitutes, demodulating audio signal makes audio signal be input to by VT4 through coupling capacitance C15 then, VT5, R8, C16, after the audio power amplifying circuit that T1 forms carried out power amplification to audio signal, S1 was reduced to sound by earphone.
In Fig. 4, the concrete operation principle of sound equipment wireless reception circuit that is used for the sound equipment wireless receiving that is connected with the television set operating circuit and radiating circuit is as follows: at first the high-frequency carrier signal f1 that remote signal sound equipment radio transmitter is sent is by by VT31, R61, R71, C101, C101, C121, C131, C141, L21, reception and demodulator circuit filtering high-frequency carrier signal that L31 constitutes, demodulating audio signal makes audio signal be input to by VT41 through coupling capacitance C151 then, V51, R81, C161, after the audio power amplifying circuit that T11 forms carried out power amplification to audio signal, S11 was reduced to sound by loudspeaker.
In Fig. 4, the concrete operation principle of sound equipment radio transmitter that is used for the sound equipment wireless receiving that is connected with the television set operating circuit and radiating circuit is as follows: at first the sound that sends of television set is transformed into the signal of telecommunication by acoustic-electric conversion elements BM1, this signal of telecommunication enters by VT11 through coupling capacitance C11, R21, R31, C31, C41, the high frequency modulated circuit that C51 constitutes, generation is subjected to the high-frequency carrier signal f2 of this voice signal modulation, and this high-frequency carrier signal is via VT21, R41, R51, C61, C71, the high-frequency amplifier circuit that L11 constitutes carries out passing through a day alignment spatial emission after the power amplification.
The utility model is not only novel, rational in infrastructure, stable performance, practical, and improved the amusement function of TV widely, make people when appreciating TV, also can represent oneself beautiful singing voice heartily, realized that really audiovisual sings the multifunctional entertainment into one; Also have earphone simultaneously and listen to function, do not influence its people's rest, its groundwork circuit can be widely used in television set, in the electric equipment products such as vcd and dvd.
Claims (1)
1, a kind of used as television sound equipment wireless transmission and reception modifying device, it is characterized in that: comprise remote signal sound equipment wireless transmission and receive operating circuit and the sound equipment wireless receiving and the radiating circuit that are used for being connected with the television set operating circuit, remote signal sound equipment wireless transmission and reception operating circuit are by power supply, be connected in the remote control circuitry of both ends of power and sound equipment radio transmitter that remote control circuitry is in parallel and form by the television acoustics wireless receiving circuit that reception and demodulator circuit and audio power amplifying circuit are formed with acoustic-electric conversion element, be connected with earphone on the output of its audio power amplifying circuit, sound equipment wireless receiving and radiating circuit are made up of sound equipment wireless receiving circuit that is in parallel and television acoustics radio transmitter, its " V+ " end is connected with "+B (12V) " end of television tuner assembly circuit, " V-" end is connected with " GND " end of television tuner assembly circuit, the sound equipment wireless receiving circuit is made up of reception and demodulator circuit and audio power amplifying circuit, the audio signal output end of audio power amplifying circuit links to each other with the loudspeaker of television set, and the input of its television acoustics radio transmitter is connected with the audio output of television set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02279604.5U CN2574319Y (en) | 2002-10-15 | 2002-10-15 | Improved sound radio transmitting and receiving device for TV set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02279604.5U CN2574319Y (en) | 2002-10-15 | 2002-10-15 | Improved sound radio transmitting and receiving device for TV set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2574319Y true CN2574319Y (en) | 2003-09-17 |
Family
ID=33742644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02279604.5U Expired - Fee Related CN2574319Y (en) | 2002-10-15 | 2002-10-15 | Improved sound radio transmitting and receiving device for TV set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2574319Y (en) |
-
2002
- 2002-10-15 CN CN02279604.5U patent/CN2574319Y/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 |