CN2402079Y - RAdio accompanying sound remote controller - Google Patents
RAdio accompanying sound remote controller Download PDFInfo
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- CN2402079Y CN2402079Y CN 99230189 CN99230189U CN2402079Y CN 2402079 Y CN2402079 Y CN 2402079Y CN 99230189 CN99230189 CN 99230189 CN 99230189 U CN99230189 U CN 99230189U CN 2402079 Y CN2402079 Y CN 2402079Y
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Abstract
The utility model relates to a radio accompanying sound remote controller for receiving and remotely controlling accompanying sound of a TV. The utility model is characterized in that the utility model is composed of an emitter and a remote control handset, the emitter transmits sound signal, and the remote control handset receives the accompanying sound and control remotely the TV; the emitter can be arranged in a machine case of the TV, and can also is externally connected with the TV; a handset circuit composed of a remote controller circuit and an accompanying sound receiving circuit is arranged in the casing of the remote control handset. The utility model has the advantages that the utility model can be used as a remote controller, and can receive the accompanying sound without affecting other people. The utility model has the advantages of reliable and convenient use and low power consumption.
Description
The utility model relates to a kind of wireless sound accompaniment remote controller that is used for television audio reception and remote control.
Existing television set in use, its sound accompaniment influences other people sometimes has a rest, and is subjected to the lead-in wire restriction and listen to sound accompaniment by earphone, very inconvenient.
The purpose of this utility model provides a kind of TV remote controller of both can having done and uses, and can listen to television field frame by this device under the mute of television set state simultaneously, and not influence the wireless sound accompaniment remote controller that other people have a rest.
The technical solution of the utility model is, this device is by being used to launch the reflector of audio signal and being used to listen to sound accompaniment and television-directed remote control mobile phone is formed.Reflector can be built in the tv chassis, also can with television set external connection, the mobile phone circuit of being made up of remote control circuitry and sound accompaniment receiving circuit is installed in the shell of remote control mobile phone.Described transmitter circuit comprises a low pressure stereo fm emission application-specific integrated circuit (ASIC) IC1, its model is BA1404, it has 18 pins, left and right sound channels audio signal input jack L IN in the transmitter circuit is connected with the audio signal output (AUDIO) of television set with R IN, and audio signal is passed through R
2-1, R
2-4, C
2-2, C
2-4, C
2-6And R
2-2, C
2-1, R
2-3, C
2-3, C
2-5Be added to 18 pin and 1 pin of IC1, i.e. the input of an audio frequency left side/R channel (L/RCH IN), the wherein capacitor C of L channel through connecting successively
2-1, C
2-3Insert 18 pin, resistance R
2-3With capacitor C
2-1Parallel connection, 18 foot meridian capacitor C
2-5Ground connection, the capacitor C of R channel through connecting successively
2-2, C
2-4Insert 1 pin, resistance R
2-4With capacitor C
2-2Parallel connection, 1 foot meridian capacitor C
2-6Ground connection, power positive end is through resistance R
2-2And R
2-1Insert L channel input and R channel input respectively; 2 pin are audio frequency offset side (AF BIAS), and its pin is through capacitor C
2-7Ground connection is improved audio offset; 3 pin are audio frequency earth terminal (AF GND); 4 pin are the offset sides (OSC BIAS) that include oscillator, and its pin is through capacitor C
2-8Ground connection is improved the vibration skew; 5 pin and 6 pin are to include the external oscillating crystal X of oscillator
3-1Two ends (XTAL), capacitor C
2-9With oscillating crystal X
3-1Series connection; 8 pin are radio frequency earth terminal (RF GND); 9 pin (OSC) and 10 pin (OSC) external capacitor C
2-12, C
2-13, C
2-14And inductance L
2-1Produce oscillator signal, realize frequency modulation(FM) FM, wherein 9 foot meridian capacitor C
2-12Ground connection, capacitor C
2-13Be connected between 9 pin and 10 pin, 10 pin are through capacitor C in parallel
2-14And inductance L
2-1Insert power positive end, power positive end is through capacitor C
2-11Ground connection; 13 pin are to include the output (PILOT OUT) of oscillator by buffer amplifier and 1/2 frequency divider generation pilot signal, pass through capacitor C
2-15And resistance R
2-8, pilot signal is injected into modulation input 12 pin (MOD IN); 14 pin are outputs (MPX OUT) of MPX balanced modulator, and the audio signal of left and right acoustic channels is modulated through including the MPX balance, and by including buffer amplifier, left and right sound track signals is mixed mutually, through capacitor C
2-16And resistance R
2-7Be injected into modulation input 12 pin (MOD IN), become composite stereo sound audio signal with the mutual mixing transformation of pilot signal, it carries out frequency modulation(FM) FM through radio-frequency oscillator, carries out radiofrequency signal through radio frequency amplifier again and amplifies by 7 pin (RF OUT) output, through capacitor C
2-10Be coupled to antenna emission sound accompaniment FM signal, power positive end is through resistance R
2-9Insert 7 pin; 15 pin (V
CC) connect the DC power supply anode; 16 pin and 17 pin (MPX BALANCE) pass through resistance R respectively
2-6And R
2-5Insert power positive end, regulate the balance that includes the MPX balanced modulator.Remote control circuitry in the described remote control mobile phone circuit adopts prior art to be used for television-directed Infrared Remote-Control Sending module, the sound accompaniment receiving circuit comprises integrated circuit (IC) 2 and integrated circuit (IC) 3 that model is X9511 that a model is TDA7021T, and the sound accompaniment receiving circuit is by a transistor Q
3-2Connect remote control circuitry and power supply, and by node A and node B sound accompaniment is outputed to loud speaker and earphone socket, triode Q
3-2Base stage through a resistance R
3-3Insert the 10th pin of the used integrated circuit (IC) 4 of Infrared Remote-Control Sending module, its collector electrode inserts the anode of 3V power supply, and its emitter access node A also is parallel with resistance R between node A and the earth terminal
3-8, capacitor C
3-4And capacitor C
3-5Said integrated circuit IC2 has 16 pins, and the sound accompaniment FM signal is by the inductance L of antenna through series connection
3-1And capacitor C
3-15Enter IC2 at 12 pin; Connect capacitor C between 10 pin of IC2 and 11 pin
3-148 foot meridian capacitor C
3-13Insert 7 pin; 7 pin are through capacitor C
3-12Access node A; 6 pin are through capacitor C
3-11Access node A; 5 pin are through resistance R
3-4Access node A, capacitor C
3-10With resistance R
3-4Parallel connection, the capacitor C of series connection mutually
3-8And C
3-9Also with resistance R
3-4In parallel; The direct access node A of 4 pin; 3 pin ground connection; 1 pin and 2 pin pass through capacitor C respectively
3-6And C
3-7Access node A; 15 pin and 16 pin pass through capacitor C respectively
3-17And C
3-18Ground connection; 13 pin are through capacitor C
3-16Ground connection; 14 pin are through resistance R
3-5Insert 6 pin of integrated circuit (IC) 3.Integrated circuit (IC) 3 has 8 pins, and wherein 5 pin are through an amplifying circuit access node B, triode Q in the amplifying circuit
3-3Base stage through capacitor C
3-21Insert 5 pin, through resistance R
3-7Access node B, triode Q
3-3Grounded emitter, collector electrode access node B, node B is through capacitor C
3-22Ground connection; 8 pin (the V of IC3
CCEnd) an external booster circuit, it comprises two triode Q
3-4And Q
3-5, triode Q
3-5Base stage through resistance R
3-6Ground connection, Q
3-5Emitter access node A, Q
3-5Collector electrode and Q
3-4Base stage connect Q
3-5Base stage and Q
3-4Collector electrode between be connected with capacitor C
3-19, Q
3-5Emitter and Q
3-4Collector electrode between be connected with inductance L
3-2, Q
3-4Collector electrode through diode D
3-2Insert 8 pin of IC3, Q
3-4Collector electrode and earth terminal between be connected with diode D
3-3, connect capacitor C between 8 pin and the earth terminal
3-203 pin of IC3,4 pin and 7 pin are ground connection respectively; 1 pin and 2 pin of IC3 pass through key switch R respectively
VOL+ and R
VOL-ground connection.
The utility model has the advantages that, both can be used as remote controller and used, also can under the condition that does not influence other people, listen to sound accompaniment, and use reliable, convenient, low in energy consumption.
Below in conjunction with accompanying drawing embodiment of the present utility model is described further:
Fig. 1 is the circuit diagram of reflector of the present utility model;
Fig. 2 is the functional-block diagram of integrated circuit (IC) 1;
Fig. 3 is the card insert type structural representation of internal connecting type reflector;
Fig. 4 is the circuit diagram of remote control mobile phone of the present utility model;
Fig. 5 is the functional-block diagram of integrated circuit (IC) 2;
Fig. 6 is the functional-block diagram of integrated circuit (IC) 3;
Fig. 7 is the housing face-plate schematic diagram of remote control mobile phone.
As shown in Figure 1 and Figure 2, transmitter circuit comprises a low pressure stereo fm emission application-specific integrated circuit (ASIC) IC1, its model is BA1404, it has 18 pins, left and right sound channels audio signal input jack L IN in the transmitter circuit is connected with the audio signal output (AUDIO) of television set with R IN, and audio signal is passed through R
2-1, R
2-4, C
2-2, C
2-4, C
2-6And R
2-2, C
2-1, R
2-3, C
2-3, C
2-5Be added to 18 pin and 1 pin of IC1, i.e. the input of an audio frequency left side/R channel (L/RCH IN); 2 pin are audio frequency offset side (AF BIAS), and its pin is through capacitor C
2-7Ground connection is improved audio offset; 3 pin are audio frequency earth terminal (AF GND); 4 pin are the offset sides (OSCBIAS) that include oscillator, and its pin is through capacitor C
2-8Ground connection is improved the vibration skew; 5 pin and 6 pin are the two ends (XTAL) that include the external oscillating crystal of oscillator; 8 pin are radio frequency earth terminal (RF GND); 9 pin (OSC) and 10 pin (OSC) external capacitor C
2-12, C
2-13, C
2-14And inductance L
2-1Produce oscillator signal, realize frequency modulation(FM) FM; 13 pin are to include the output (PILOT OUT) of oscillator by buffer amplifier and 1/2 frequency divider generation pilot signal, pass through capacitor C
2-15And resistance R
2-8, pilot signal is injected into modulation input 12 pin (MOD IN); 14 pin are outputs (MPXOUT) of MPX balanced modulator, and the audio signal of left and right acoustic channels is modulated through including the MPX balance, and by including buffer amplifier, left and right sound track signals is mixed mutually, through capacitor C
2-16And resistance R
2-7Be injected into modulation input 12 pin (MOD IN), become composite stereo sound audio signal with the mutual mixing transformation of pilot signal, it carries out frequency modulation(FM) FM through radio-frequency oscillator, carries out radiofrequency signal through radio frequency amplifier again and amplifies by 7 pin (RF OUT) output, through capacitor C
2-10Be coupled to antenna emission sound accompaniment FM signal; 15 pin (V
CC) connect the DC power supply anode; 16 pin and 17 pin (MPX BALANCE) pass through resistance R respectively
2-6And R
2-5Insert power positive end, regulate the balance that includes the MPX balanced modulator.Transmitter circuit can be installed in the independent shell and television set external connection, the card insert type structure (as shown in Figure 3) that connects in also can adopting, be inserted on the private jack in the television set, plug-in card has six plugs, is respectively input voltage, L channel input, audio frequency ground connection, R channel input, earth terminal and antenna.
As Fig. 4, Fig. 5, shown in Figure 6, the remote control mobile phone circuit is made up of remote control circuitry and sound accompaniment receiving circuit, remote control circuitry wherein adopts prior art to be used for the Infrared Remote-Control Sending module of TV remote-control, the sound accompaniment receiving circuit comprises integrated circuit (IC) 2 and integrated circuit (IC) 3 that model is X9511 that a model is TDA7021T, and the sound accompaniment receiving circuit is by a transistor Q
3-2Connect remote control circuitry and power supply, and sound accompaniment is outputed to loud speaker and earphone socket by node A and node B.Triode Q when the sound accompaniment receiving circuit is in wait state usually
3-2Be in cut-off state, the sound accompaniment receiving circuit is not worked, and during button ON/OOF on pressing the remote control mobile phone panel (as shown in Figure 7), the 10th pin of the integrated circuit (IC) 4 that the Infrared Remote-Control Sending module is used provides a high potential, Q
3-2Saturated conduction, then power supply DC+3V supplies with the sound accompaniment receiving circuit, and this circuit is started working.The sound accompaniment FM signal is passed through inductance L by antenna
3-1And capacitor C
3-15Enter the broadband High Amplifier Circuit that IC2 includes at 12 pin, after the amplification, enter mixer stage and enter from the 76KHz intermediate frequency that the local oscillation signal mixing difference of local oscillator level goes out the sound accompaniment FM signal that is received in put level, the frequency from the local oscillation signal of local oscillator level that enters mixing is by capacitor C
3-8, C
3-9, C
3-10And resistance R
3-4The decision of parameter size, capacitor C is depended in the adjusting of frequency
3-9Adjustment.Selectivity is selected level and capacitor C by the intermediate frequency of intermediate level circuit
3-12, C
3-13And C
3-14Constitute source filter and obtain, in put amplitude limiter and pass through capacitor C
3-11Can remove the parasitic amplitude modulation interference signal, phase discriminator converts the frequency error of nominal intermediate frequency (76KHz) to voltage error, turn back to local oscillator level revised version vibration frequency, guarantee that mixer stage exports the intermediate-freuqncy signal of 76KHz accurately, through amplifying amplitude limit, detect by the audio signal of product detector, handle through squelch switch, loop filtering and amplifying stage again and pass through resistance R by 14 pin with sound accompaniment
3-5The audio signal that output is stable, noise is low.Deliver to 6 pin of button control digital potentiometer integrated circuit (IC) 3 then, from the 5 pin output of IC3, it exports audio signal size (being volume), can change by button RVOL+ and the RVOL-on the remote control mobile phone panel.Through transistor Q
3-3Amplify rear drive loud speaker or earphone.Capacitor C
3-6, C
3-7And C
3-18, C
3-17It is anti-tampering to be all filtering.Usually radio receiver control volume is to use mechanical slide potentiometer, but it is with easily producing noise, loose contact long afterwards, and for avoiding above-mentioned defective, it is the button control digital potentiometer integrated circuit (IC) 3 of X9511 that the utility model has adopted model.Because the use supply voltage of IC3 is+5V, and remote control mobile phone partly is to use the DC+3V power supply, therefore adopt DC-AD-DC DC converting booster circuit, transistor Q
3-5, Q
3-4With R
3-6, C
3-19, L
3-2Form resonant circuit DC+3V is transformed into interchange, through diode D
3-3, D
3-2The V that DC+5V supplies with IC3 is obtained in detection and voltage stabilizing
CCEnd (i.e. 8 pin).
Claims (3)
1, a kind of wireless sound accompaniment remote controller is characterized in that: this device is by the reflector that is used to launch audio signal and be used to listen to sound accompaniment and television-directed remote control mobile phone is formed,
The circuit of described reflector comprises a low pressure stereo fm emission application-specific integrated circuit (ASIC) IC1, its model is BA1404, it has 18 pins, left and right sound channels audio signal input jack L IN in the transmitter circuit is connected with the audio signal output (AUDIO) of television set with R IN, and audio signal is passed through R
2-1, R
2-4, C
2-2, C
2-4, C
2-6And R
2-2, C
2-1, R
2-3, C
2-3, C
2-5Be added to 18 pin and 1 pin of IC1, i.e. the input of an audio frequency left side/R channel (L/R CH IN), the wherein capacitor C of L channel through connecting successively
2-1, C
2-3Insert 18 pin, resistance R
2-3With capacitor C
2-1Parallel connection, 18 foot meridian capacitor C
2-5Ground connection, the capacitor C of R channel through connecting successively
2-2, C
2-4Insert 1 pin, resistance R
2-4With capacitor C
2-2Parallel connection, 1 foot meridian capacitor C
2-6Ground connection, power positive end is through resistance R
2-2And R
2-1Insert L channel input and R channel input respectively; 2 pin are audio frequency offset side (AF BIAS), and its pin is through capacitor C
2-7Ground connection; 3 pin are audio frequency earth terminal (AF GND); 4 pin are the offset sides (OSC BIAS) that include oscillator, and its pin is through capacitor C
2-8Ground connection; 5 pin and 6 pin are to include the external oscillating crystal X of oscillator
3-1Two ends (XTAL), capacitor C
2-9With oscillating crystal X
3-1Series connection; 8 pin are radio frequency earth terminal (RF GND); 9 pin (OSC) and 10 pin (OSC) external capacitor C
2-12, C
2-13, C
2-14And inductance L
2-1Produce oscillator signal, realize frequency modulation(FM) FM, wherein 9 foot meridian capacitor C
2-12Ground connection, capacitor C
2-13Be connected between 9 pin and 10 pin, 10 pin are through capacitor C in parallel
2-14And inductance L
2-1Insert power positive end, power positive end is through capacitor C
2-11Ground connection; 13 pin are to include the output (PILOT OUT) of oscillator by buffer amplifier and 1/2 frequency divider generation pilot signal, pass through capacitor C
2-15And resistance R
2-8, insert 12 pin (MOD IN); 14 pin are outputs (MPX OUT) of MPX balanced modulator, through capacitor C
2-16And resistance R
2-7Insert 12 pin (MOD IN); Audio signal is by 7 pin (RF OUT) output, through capacitor C
2-10Be coupled to antenna, power positive end is through resistance R
2-9Insert 7 pin; 15 pin (V
CC) connect the DC power supply anode; 16 pin and 17 pin (MPX BALANCE) pass through resistance R respectively
2-6And R
2-5Insert power positive end,
Remote control circuitry in the described remote control mobile phone circuit adopts prior art to be used for the Infrared Remote-Control Sending module of TV remote-control, the sound accompaniment receiving circuit comprises integrated circuit (IC) 2 and integrated circuit (IC) 3 that model is X9511 that a model is TDA7021T, the sound accompaniment receiving circuit connects remote control circuitry and power supply by a transistor Q3-2, and by node A and node B sound accompaniment is outputed to loud speaker and earphone socket, triode Q
3-2Base stage through a resistance R
3-3Insert the 10th pin of the used integrated circuit (IC) 4 of Infrared Remote-Control Sending module, its collector electrode inserts the anode of 3V power supply, and its emitter access node A also is parallel with resistance R between node A and the earth terminal
3-8, capacitor C
3-4And capacitor C
3-5Said integrated circuit IC2 has 16 pins, and the sound accompaniment FM signal is by the inductance L of antenna through series connection
3-1And capacitor C
3-15Enter IC2 at 12 pin; Connect capacitor C between 10 pin of IC2 and 11 pin
3-148 foot meridian capacitor C
3-13Insert 7 pin; 7 pin are through capacitor C
3-12Access node A; 6 pin are through capacitor C
3-11Access node A; 5 pin are through resistance R
3-4Access node A, capacitor C
3-10With resistance R
3-4Parallel connection, the capacitor C of series connection mutually
3-8And C
3-9Also with resistance R
3-4In parallel; The direct access node A of 4 pin; 3 pin ground connection; 1 pin and 2 pin pass through capacitor C respectively
3-6And C
3-7Access node A; 15 pin and 16 pin pass through capacitor C respectively
3-17And C
3-18Ground connection; 13 pin are through capacitor C
3-16Ground connection; 14 pin are through resistance R
3-5Insert 6 pin of integrated circuit (IC) 3.Integrated circuit (IC) 3 has 8 pins, and wherein 5 pin are through an amplifying circuit access node B, triode Q in the amplifying circuit
3-3Base stage through capacitor C
3-21Insert 5 pin, through resistance R
3-7Access node B, triode Q
3-3Grounded emitter, collector electrode access node B, node B is through capacitor C
3-22Ground connection; 8 pin (the V of IC3
CCEnd) an external booster circuit, it comprises two triode Q
3-4And Q
3-5, triode Q
3-5Base stage through resistance R
3-6Ground connection, Q
3-5Emitter access node A, Q
3-5Collector electrode and Q
3-4Base stage connect Q
3-5Base stage and Q
3-4Collector electrode between be connected with capacitor C
3-19, Q
3-5Emitter and Q
3-4Collector electrode between be connected with inductance L
3-2, Q
3-4Collector electrode through diode D
3-2Insert 8 pin of IC3, Q
3-4Collector electrode and earth terminal between be connected with diode D
3-3, connect capacitor C between 8 pin and the earth terminal
3-203 pin of IC3,4 pin and 7 pin are ground connection respectively; 1 pin and 2 pin of IC3 pass through key switch R respectively
VOL+ and R
VOL-ground connection.
2, according to the wireless sound accompaniment remote controller of claim 1, it is characterized in that: described reflector is the circumscribed structure, and it connects with the television audio signal output part by the audio signal input jack on its shell.
3, according to the wireless sound accompaniment remote controller of claim 1, it is characterized in that: the card insert type structure that described reflector connects in being, be inserted on the private jack in the television set, plug-in card has six plugs, is respectively input voltage, L channel input, audio frequency ground connection, R channel input, earth terminal and antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99230189 CN2402079Y (en) | 1999-12-02 | 1999-12-02 | RAdio accompanying sound remote controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99230189 CN2402079Y (en) | 1999-12-02 | 1999-12-02 | RAdio accompanying sound remote controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2402079Y true CN2402079Y (en) | 2000-10-18 |
Family
ID=34019322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99230189 Expired - Fee Related CN2402079Y (en) | 1999-12-02 | 1999-12-02 | RAdio accompanying sound remote controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2402079Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102739864A (en) * | 2012-06-15 | 2012-10-17 | 惠州Tcl移动通信有限公司 | Method for realizing wireless earphone function of television set and wireless communication equipment |
| CN103297824A (en) * | 2013-05-29 | 2013-09-11 | 华为技术有限公司 | Video processing method, dongle, control terminal and system |
| CN104284277A (en) * | 2014-11-05 | 2015-01-14 | 成都爱斯顿测控技术有限公司 | Microphone circuit for laptop |
-
1999
- 1999-12-02 CN CN 99230189 patent/CN2402079Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102739864A (en) * | 2012-06-15 | 2012-10-17 | 惠州Tcl移动通信有限公司 | Method for realizing wireless earphone function of television set and wireless communication equipment |
| CN102739864B (en) * | 2012-06-15 | 2015-08-19 | 惠州Tcl移动通信有限公司 | Realize method and the wireless telecommunications system of TV wireless earphone function |
| CN103297824A (en) * | 2013-05-29 | 2013-09-11 | 华为技术有限公司 | Video processing method, dongle, control terminal and system |
| CN104284277A (en) * | 2014-11-05 | 2015-01-14 | 成都爱斯顿测控技术有限公司 | Microphone circuit for laptop |
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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 |