CN2682751Y - Remote controller with pickup function and television set with radio reception function - Google Patents
Remote controller with pickup function and television set with radio reception function Download PDFInfo
- Publication number
- CN2682751Y CN2682751Y CNU2004200329665U CN200420032966U CN2682751Y CN 2682751 Y CN2682751 Y CN 2682751Y CN U2004200329665 U CNU2004200329665 U CN U2004200329665U CN 200420032966 U CN200420032966 U CN 200420032966U CN 2682751 Y CN2682751 Y CN 2682751Y
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- remote controller
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- television set
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Abstract
The utility model relates to a remote controller and a television set, disclosing a remote controller with a pickup function and a television provided with a sound reception function. The remote controller comprises a remote controller casing, a remote control circuit, keys, a pickup unit and a sound modulating and transmitting unit, the pickup unit is installed in the remote controller casing, which picks up a sound signal which is converted to an electric signal and outputted to the sound modulation transmitting unit by the pickup unit, the sound modulating and transmitting unit responses the electrical signal of the sound, and the electrical signal is outputted to a transmitting circuit to be transmitted after being modulated through a modulation circuit. The television set comprises an image part, a sound circuit, a sound power amplifier, a loudspeaker and a modulating and receiving circuit which is used for receiving an audio signal transmitted by the remote controller in a wireless way, and the audio signal is outputted to the sound power amplifier and the loudspeaker after being modulated by the modulating and receiving circuit. The utility model makes the remote controller have the function of the wireless microphone and plays out the sound through the sound part of the television set, which can also realize the functions of sing accompaniment and sing without accompaniment through the control of the microcontroller inside the television set.
Description
[technical field]
The utility model relates to a kind of television set and remote controller, relates in particular to a kind of the have television set of function of radio receiver and the remote controller with pickup function.
[background technology]
General using CD, VCD or DVD play a disc when having family's karaoke now, also by TV or computer display frame, pick up singer's sound by dedicated microphone usually, are input to power amplifier and loud speaker output sound.Therefore for this amusement, the user often needs to purchase sound equipment and the microphone that a cover comprises power amplifier and loud speaker, and the space is paid, taken to the economy that has increased the user.
[summary of the invention]
Main purpose of the present utility model provides a kind of television set that has the remote controller of pickup function and have function of radio receiver, makes the user utilize remote controller to pick up sound, utilizes television set to receive sound and broadcast.
For achieving the above object, the technical scheme that the utility model proposes comprises: a kind of remote controller with pickup function, comprise remote controller shell, remote control circuit and button, and also comprise:
Pickup unit: be installed in the remote controller shell, pick up voice signal, and convert the signal of telecommunication to and export sound accompaniment modulate emission unit to;
Sound accompaniment modulate emission unit: the response sound signal of telecommunication, comprise modulation circuit and radiating circuit, export the sound signal of telecommunication to radiating circuit after by modulating circuit modulates and launch.
Described modulation circuit is a FM circuit.
Described pickup unit is a microphone.
Described FM circuit is the frequency modulated carrier circuit that includes the second triode Q2 and the 3rd triode Q3, the sound signal of telecommunication that described pickup unit produces is coupled to the base stage of the second triode Q2, the collector electrode of the second triode Q2 connects the base stage of the 3rd triode Q3, and the signal after the collector electrode of the 3rd triode Q3 will be modulated exports radiating circuit to.
Described radiating circuit is the radiating circuit that includes the first triode Q1, and the voice signal by modulating circuit modulates exports antenna to by collector electrode and launches by the base stage that transformer T1 is coupled to the first triode Q1 after the first triode Q1 amplifies.
Described button includes the vocal accompaniment key and the key of singing opera arias, the triggering of described remote control circuit response vocal accompaniment key, and emission vocal accompaniment control signal exports audio power amplifier to after making television set will be from the voice signal of remote controller and television audio circuit signal superimposed; Described remote control circuit responds the triggering of the key of singing opera arias, and launches the control signal of singing opera arias and makes television set cut off the television audio circuit signal, will export audio power amplifier to from the voice signal of remote controller.
For achieving the above object, the technical scheme that the utility model proposes also comprises: a kind of television set with function of radio receiver, comprise image area harmony line branch, and described sound partly comprises sound accompaniment circuit, audio power amplifier and loud speaker, also comprises:
The modulation receiving circuit: be used for the audio signal of wireless receiving from remote controller emission, after the demodulation with described audio signal output to audio power amplifier and loud speaker.
The IF-FRE of described modulation receiving circuit is 70KHz.
Described modulation receiving circuit includes the integrated circuit TDA7088 that is used to receive the FM frequency-modulated wave, described integrated circuit TDA7088 receive by antenna induction to signal, will export audio power amplifier after the signal processing to.
Also comprise microcontroller and electronic switch, described microcontroller response control of remote controller signal, described modulation receiving circuit and television audio circuit are connected to the input of audio power amplifier respectively by electronic switch, the control signal of described electronic switch response microcontroller, make from the voice signal of remote controller and television audio circuit signal to export audio power amplifier to after superimposed, or cut off the television audio circuit signal and only will export audio power amplifier to from the voice signal of remote controller.
The beneficial effects of the utility model are: the utility model is by increasing microphone and modulate emission module on remote controller, on television set, increase the modulation receiving circuit, make remote controller have the function of wireless microphone, and partly play back by the sound of television set, by the control of microcontroller in the television set, also can realize the vocal accompaniment and the function of singing opera arias.Therefore unnecessary stereo set and the microphone of buying special use again of user makes the user save expense.Because increased the modulation receiving circuit in the television set,, also can realize receiving the FM frequency modulation broadcast function simultaneously, make the television set a tractor serves several purposes by the microprocessor controls frequency-selecting.
Feature of the present utility model and advantage will be elaborated in conjunction with the accompanying drawings by embodiment.
[description of drawings]
Fig. 1 represents the block diagram of sound part in remote controller of the present utility model and the television set;
Fig. 2 represents the circuit diagram of a kind of embodiment of remote controller of the present utility model;
Fig. 3 represents to dub in the television set of the present utility model the flow chart that plate module receives the voice signal of remote controller control signal and emission;
Fig. 4 represents the circuit diagram of a kind of embodiment of television set internal modulation receiver module of the present utility model.
[embodiment]
Be illustrated in figure 1 as the block diagram of a kind of embodiment of remote controller of the present utility model, remote controller comprises button and remote control circuit, in the remote controller shell, increase pickup unit and sound accompaniment modulate emission unit, make pickup unit pick up voice signal, and launch by sound accompaniment modulate emission unit.
Remote control circuit is an infrared remote controller in the present embodiment, pickup unit is a microphone, sound accompaniment modulate emission unit comprises modulation circuit and radiating circuit, as shown in Figure 2, modulation circuit is a FM circuit, the frequency modulated carrier circuit that includes the second triode Q2 and the 3rd triode Q3, the sound signal of telecommunication that described microphone two ends produce is coupled to the base stage of the second triode Q2, the collector electrode of the second triode Q2 connects the base stage of the 3rd triode Q3, emitter is by the 5th resistance R 5 and the 5th capacitor C 5 ground connection in parallel, signal after the collector electrode of the 3rd triode Q3 will be modulated exports radiating circuit to, and emitter is by the 7th resistance R 7 and the 11 capacitor C 11 ground connection in parallel.Described radiating circuit is the radiating circuit that includes the first triode Q1, be coupled to the base stage of the first triode Q1 by transformer T1 by the voice signal of modulating circuit modulates, after the first triode Q1 amplifies, export antenna to and launch the grounded emitter of the first triode Q1 by collector electrode.Described button includes the vocal accompaniment key and the key of singing opera arias, the triggering of described remote control circuit response vocal accompaniment key, and emission vocal accompaniment control signal exports audio power amplifier to after making television set will be from the voice signal of remote controller and television audio circuit signal superimposed; Described remote control circuit responds the triggering of the key of singing opera arias, and launches the control signal of singing opera arias and makes television set cut off the television audio circuit signal, will export audio power amplifier to from the voice signal of remote controller.
Be illustrated in figure 1 as the block diagram of a kind of embodiment of sound part in the television set of the present utility model, on the basis of existing television audio processing circuit module, increase and dub plate module, existing television audio processing circuit module comprises the original sound accompaniment circuit of TV, dubs plate module and comprises modulation receiving element, microcontroller and electronic switch.Modulation receiving circuit and television audio circuit are connected to the input of audio power amplifier respectively by electronic switch, amplify by audio power amplifier, export loud speaker again to.By pressing the difference in functionality button on the remote controller, remote controller is launched corresponding infrared encoded signal, after dubbing the control signal that microcontroller on the plate module receives the remote controller emission, be converted to the signal of telecommunication and discern, microcontroller is exported corresponding level signal control electronic switch according to the signal of identification the television audio circuit is switched on or off.When the control signal of electronic switch response microcontroller is connected the television audio circuit, make from the voice signal of remote controller and television audio circuit signal and export audio power amplifier to after superimposed, when the control signal of electronic switch response microcontroller is cut off the television audio circuit, only will export audio power amplifier to, as shown in Figure 3 from the voice signal of remote controller.During actual the use, when pressing remote controller " vocal accompaniment " key, the original sound accompaniment of this audio signal and television set is superimposed; Promptly cut off the original sound accompaniment of TV by the remote controller key of " singing opera arias ", audio signal is delivered to the tv audio power amplifier and is amplified and export also original sound of loud speaker to.
Described modulation receiving element is realized by high performance integrated radio reception circuit, comprises FM channel selection radio reception ic chip 1 (TDA7088T) and peripheral circuit thereof, and as shown in Figure 4, the IF-FRE of modulation receiving element is 70KHz.Its intermediate frequency is selected to be finished by FM channel selection radio reception ic chip 1 inner RC intermediate-frequency filter; FM channel selection radio reception ic chip inside comprises that height is put, local oscillator, mixing, double conversion, in put, function such as frequency discrimination.Capacitor C 10, inductance L 2 and capacitor C 11 order series connection constitute input circuit, the series connection end of capacitor C 10 and capacitor C 11 is connected antenna, 11 and 12 pin of FM channel selection radio reception ic chip 1 (TDA7088T) are inserted at the two ends of inductance L 2 respectively, capacitor C 12 1 ends link to each other other end ground connection with 11 pin of FM channel selection radio reception ic chip 1.Sending into FM channel selection radio reception ic chip 1 by input circuit resonance after reception antenna is sensed signal changes and discerns.Inductance L 1, capacitor C 5 and variable capacitance diode D1 connect in proper order and constitute the frequency of resonant tank decision modulation receiving element, and the positive pole of variable capacitance diode D1 links to each other with capacitor C 5, and negative pole links to each other with inductance L 1.Capacitor C 1 is a noise elimination electric capacity, one termination power positive pole, 1 pin of another termination FM channel selection radio reception ic chip 1.Capacitor C 6 is the intermediate frequency feedback capacity, and two ends connect 6 pin and 8 pin of FM channel selection radio reception ic chip 1 respectively.Capacitor C 7 is a low pass electric capacity, and two ends connect 6 pin of FM channel selection radio reception ic chip 1 and the positive pole of power supply respectively.Capacitor C 14 is a filter capacitor, and two ends connect 15 pin of antenna and FM channel selection radio reception ic chip 1 respectively, and 15 pin of FM channel selection radio reception ic chip 1 are tuning reset terminal, and 16 pin are tuning end, output tuning voltage control variable capacitance diode D1.Audio signal is exported from 2 pin behind the signal process FM channel selection radio reception ic chip 1 inner frequency discrimination.The frequency of this output audio signal and processing are by the microprocessor controls of dubbing plate module.
Because of including FM channel selection radio reception ic chip 1 (TDA7088T) in the modulation receiving element, so can also realize function of radio receiver to the FM FM broadcasting.Select " FM program " key on the remote controller, cut off microphone and pick up voice signal, remote controller is launched corresponding infrared encoded signal, handles by the microcontroller of dubbing plate module, the control electronic switch cuts off television audio circuit, and output is from the signal in FM broadcasting station separately.Because the FM signal of remote controller emission is different with the carrier frequency of FM broadcast singal, when exchanging frequency demodulated signal, the modulation receiving element discerns the FM signal of remote controller emission or the signal of broadcasting from FM by the difference of carrier frequency.If the FM signal of remote controller emission, the handling process of microcontroller as shown in Figure 3.If from the signal of FM broadcasting, its frequency-selecting can be finished by microprocessor controls FM reception element circuit, when microcontroller receives " frequency-selecting " control signal from remote controller, the operation corresponding program is equivalent to that the K1 switch clicks among Fig. 4, the FM reception element circuit by the frequency low side to high-end search radio station, in case search radio signals, tuningly stop automatically.If click " frequency-selecting " key on the remote controller again, circuit continues toward front end search radio station.When be tuned to during FM receive frequency most significant end, click " FM resets " key on the remote controller, when microcontroller received from " FM resets " control signal of remote controller, the operation corresponding program was equivalent to that the K2 switch clicks among Fig. 4, receive frequency is promptly got back to least significant end, and search tuning begins again.The frequency-selecting of FM broadcasting also can realize by the K1 among manual operation Fig. 4, K2 switch control FM reception element circuit, click the first key switch K1, the FM reception element circuit,, is tuningly stopped in case searching radio signals to high-end search radio station automatically by the frequency low side.If click the first key switch K1 again, circuit continues toward front end search radio station.When be tuned to during FM receive frequency most significant end, click the second key switch K2, receive frequency is promptly got back to least significant end, search tuning begins again.
In the present embodiment, electronic switch is a prior art, and various basically electronic switch can both be realized above-mentioned functions, for example can realize by the electronic switch of 4052 types.
The utility model not only can be realized Kara OK function by television set and remote controller, but also can receive FM FM broadcasting program, has realized a tractor serves several purposes, has saved consumer cost, has enriched the program source of television set simultaneously.
Claims (10)
1. the remote controller with pickup function comprises remote controller shell, remote control circuit and button, it is characterized in that also comprising:
Pickup unit: be installed in the remote controller shell, pick up voice signal, and convert the signal of telecommunication to and export sound accompaniment modulate emission unit to;
Sound accompaniment modulate emission unit: the response sound signal of telecommunication, comprise modulation circuit and radiating circuit, export the sound signal of telecommunication to radiating circuit after by modulating circuit modulates and launch.
2. the remote controller with pickup function as claimed in claim 1 is characterized in that: described modulation circuit is a FM circuit.
3. the remote controller with pickup function as claimed in claim 2, it is characterized in that: described FM circuit is for including the frequency modulated carrier circuit of second triode (Q2) and the 3rd triode (Q3), the sound signal of telecommunication that described pickup unit produces is coupled to the base stage of second triode (Q2), the collector electrode of second triode (Q2) connects the base stage of the 3rd triode (Q3), and the signal after the collector electrode of the 3rd triode (Q3) will be modulated exports radiating circuit to.
4. as each described remote controller in the claim 1 to 3 with pickup function, it is characterized in that: described radiating circuit is for including the radiating circuit of first triode (Q1), voice signal by modulating circuit modulates is coupled to the base stage of first triode (Q1) by transformer (T1), exports antenna to by collector electrode and launch after first triode (Q1) amplifies.
5. as each described remote controller with pickup function in the claim 1 to 3, it is characterized in that: described pickup unit is a microphone.
6. the remote controller with pickup function as claimed in claim 1, it is characterized in that: described button includes the vocal accompaniment key and the key of singing opera arias, the triggering of described remote control circuit response vocal accompaniment key, emission vocal accompaniment control signal export audio power amplifier to after making television set will be from the voice signal of remote controller and television audio circuit signal superimposed; Described remote control circuit responds the triggering of the key of singing opera arias, and launches the control signal of singing opera arias and makes television set cut off the television audio circuit signal, will export audio power amplifier to from the voice signal of remote controller.
7. the television set with function of radio receiver comprises image area harmony line branch, and described sound partly comprises sound accompaniment circuit, audio power amplifier and loud speaker, it is characterized in that also comprising:
The modulation receiving circuit: be used for the audio signal of wireless receiving from remote controller emission, after the demodulation with described audio signal output to audio power amplifier and loud speaker.
8. the television set with function of radio receiver as claimed in claim 7 is characterized in that: the IF-FRE of described modulation receiving circuit is 70KHz.
9. the television set with function of radio receiver as claimed in claim 8, it is characterized in that: described modulation receiving circuit includes the integrated circuit TDA7088 that is used to receive the FM frequency-modulated wave, described integrated circuit TDA7088 receive by antenna induction to signal, will export audio power amplifier after the signal processing to.
10. as each described television set in the claim 7 to 9 with function of radio receiver, it is characterized in that: also comprise microcontroller and electronic switch, described microcontroller response control of remote controller signal, described modulation receiving circuit and television audio circuit are connected to the input of audio power amplifier respectively by electronic switch, the control signal of described electronic switch response microcontroller, make from the voice signal of remote controller and television audio circuit signal to export audio power amplifier to after superimposed, or cut off the television audio circuit signal and only will export audio power amplifier to from the voice signal of remote controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200329665U CN2682751Y (en) | 2004-02-18 | 2004-02-18 | Remote controller with pickup function and television set with radio reception function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200329665U CN2682751Y (en) | 2004-02-18 | 2004-02-18 | Remote controller with pickup function and television set with radio reception function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2682751Y true CN2682751Y (en) | 2005-03-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2004200329665U Expired - Fee Related CN2682751Y (en) | 2004-02-18 | 2004-02-18 | Remote controller with pickup function and television set with radio reception function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2682751Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106792013A (en) * | 2016-11-29 | 2017-05-31 | 青岛海尔多媒体有限公司 | A kind of method, the TV interactive for television broadcast sounds |
| CN109982014A (en) * | 2019-04-22 | 2019-07-05 | 合肥惠科金扬科技有限公司 | A kind of driving circuit and television set |
| CN111343399A (en) * | 2020-02-04 | 2020-06-26 | 海信视像科技股份有限公司 | Television with remote pickup function |
-
2004
- 2004-02-18 CN CNU2004200329665U patent/CN2682751Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106792013A (en) * | 2016-11-29 | 2017-05-31 | 青岛海尔多媒体有限公司 | A kind of method, the TV interactive for television broadcast sounds |
| CN109982014A (en) * | 2019-04-22 | 2019-07-05 | 合肥惠科金扬科技有限公司 | A kind of driving circuit and television set |
| CN109982014B (en) * | 2019-04-22 | 2023-09-29 | 重庆惠科金扬科技有限公司 | Driving circuit and television |
| CN111343399A (en) * | 2020-02-04 | 2020-06-26 | 海信视像科技股份有限公司 | Television with remote pickup function |
| CN111343399B (en) * | 2020-02-04 | 2021-11-19 | 海信视像科技股份有限公司 | Television with remote pickup function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050302 Termination date: 20100218 |