CN2669532Y - Television receiver with wireless audio box - Google Patents
Television receiver with wireless audio box Download PDFInfo
- Publication number
- CN2669532Y CN2669532Y CNU2004200381221U CN200420038122U CN2669532Y CN 2669532 Y CN2669532 Y CN 2669532Y CN U2004200381221 U CNU2004200381221 U CN U2004200381221U CN 200420038122 U CN200420038122 U CN 200420038122U CN 2669532 Y CN2669532 Y CN 2669532Y
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- audio signal
- sound box
- wireless
- wireless sound
- television set
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Abstract
The utility model discloses a television receiver with wireless audio box, which is characterized in that the emission plate of the wireless sound box is integrated into the circuit of the television for implementing perfect matching between the television and the wireless sound box, wherein, the television can output left circulating audio signal and right circulating audio signal via the left wireless sound box and the right wireless sound box and match with a left channel loudspeaker, a right channel loudspeaker and a supper bass horn inside of the television for implementing reproduction for the acoustic signal of dolby 5.1 acoustic channel and reverting audio content truly; audiences can personally experience on the scene during the appreciation of television programs. If the utility model is applied to liquid crystal televisions or isoionic televisions, etc. hanged on walls, it can implement wireless audio visual and bring users auditive appreciation freely.
Description
Technical field
The utility model relates to a kind of television set, specifically, relates to the TV set circuit that a kind of television set combines with wireless sound box.
Background technology
Along with the raising of people's level of consumption, also more and more higher to the requirement of television set, the effect of TV sound field especially, people wish to enjoy sound effect more on the spot in person when enjoying colourful television image.The only built-in usually left and right sides of general television set loud speaker, Gao Dang type then has the supper bass loudspeaker slightly, delivering to loud speaker after voice signal is handled by chip appreciates for people, this kind mode can not be reproduced sound effect well, especially when appreciating the grander film of some scenes, spectators can not be real realizes impression on the spot in person.When television set links to each other the DVD playing back film with DVD player, common DVD player can be exported left and right acoustic channels and two kinds of voice signals of Doby 5.1 sound channels, in Doby 5.1 sound channel signals, not only include the left and right acoustic channels audio signal, also include left and right sides surround audio signal, supper bass signal and mid-audio signal.If cooperate general television for play, then can only select the left and right acoustic channels output mode, voice signal is appreciated the dynamic effect less than surround sound by the output of left and right sides loud speaker.
Summary of the invention
In order to overcome television set only built-in left and right sides loud speaker and supper bass loudspeaker in the prior art, thereby can not reproduce the deficiency of sound effect well, the utility model provides a kind of television set of being furnished with wireless sound box, it has realized the reproduction of Doby 5.1 sound channel signals with television set and wireless sound box perfect adaptation.
For solving the problems of the technologies described above, the utility model is achieved by the following technical solutions:
A kind of television set of being furnished with wireless sound box, include left and right sound channels loud speaker, supper bass loudspeaker and CPU, wherein, the left and right sound channels audio signal is exported by the left and right sound channels loud speaker after power amplification circuit filtering is amplified respectively, and the supper bass signal is exported by the supper bass loudspeaker after power amplifier amplifies; Described television set also is furnished with wireless sound box, surround audio signal treatment circuit and wireless transmission plate in TV set circuit, have been set up, the left and right surround audio signal that described surround audio signal treatment circuit will receive under the control of CPU is exported to the wireless transmission plate, the output of control wireless sound box.
In described TV set circuit, also include mid-audio signal receiving terminal, described mid-audio signal superposes with left channel signals and right-channel signals respectively by penetrating with circuit, and the audio signal after will superposeing is exported by the left and right sound channels loud speaker after power amplifier filtering is amplified.
In addition, in described surround audio signal treatment circuit, also include quiet control end and volume adjustable side, receive the control signal that CPU sends respectively, realize the quiet control of wireless sound box and the adjusting of volume; Wherein, quiet control end links to each other with CPU by a transistor, its base stage connects the control signal output ends of CPU, control its conducting or end, collector electrode one tunnel connects power supply side, another road links to each other grounded emitter with the quiet control end of described surround audio signal treatment circuit.
Above-mentioned surround audio signal treatment circuit adopts a power amplifier chip AN7522 to realize.
Compared with prior art, the beneficial effects of the utility model are: the utility model is integrated in the TV set circuit by the expelling plate with wireless sound box, has realized the perfect adaptation of conventional television and wireless sound box.The left and right surround audio signal that it receives by left and right wireless sound box output television set, and the left and right sound channels loud speaker of cooperation television internal and the reproduction that the supper bass loudspeaker have been realized Doby 5.1 channel sound signals, reduced sound-content really, made spectators when appreciating TV programme, can really experience effect on the spot in person.Generally hang on the television set on the wall if it is expanded to LCD TV or plasm TV etc., can realize wireless audiovisual better, bring hearing enjoying more freely to people.
Description of drawings
Fig. 1 is the theory diagram of the utility model audio frequency processing circuit;
Fig. 2 is the physical circuit figure that realizes left and right surround audio signal is handled output;
Fig. 3 is the physical circuit figure that realizes mid-audio signal and the stack of left and right sound channels audio signal.
Embodiment
The utility model is described in more detail below in conjunction with the drawings and specific embodiments.
Existing DVD player generally can be exported two kinds of voice signals, and a kind of is the left and right sound channels voice signal, and another kind is Doby 5.1 channel sound signals.Traditional television set is because its inside only is provided with the left and right sound channels loud speaker, and Gao Dang type has also just been set up the supper bass loudspeaker slightly, so when linking to each other the DVD playing back film with DVD player, can only select left and right acoustic channels voice signal output mode.And in Doby 5.1 channel sound signals except including left and right sound channels audio signal and supper bass signal, also include left and right surround audio signal and mid-audio signal, if make television set can realize the reproduction of Doby 5.1 channel sound signals, must will strengthen the sound field effect of television set greatly, give sensation on the spot in person.The utility model is by combining traditional television set and wireless sound box are perfect, thereby realized the reproduction of Doby 5.1 channel sound signals, satisfied spectators' audiovisual demand, and its specific implementation is referring to shown in Figure 1.
Fig. 1 is the theory diagram of the utility model audio frequency processing circuit, the output circuit of supper bass and left and right sound channels audio signal is identical with existing television set in Doby 5.1 channel sound signals, after all the power amplification circuit by television set inside carries out audio frequency filtering and amplifies, drive the output of supper bass loudspeaker and left and right loud speaker.A left side around with right surround audio signal then respectively by giving the wireless transmission plate after the surround audio signal processing circuit processes shown in Fig. 2, the output of control wireless sound box.Wherein, described surround audio signal treatment circuit has adopted a power amplifier chip AN7522 to realize.
Left and right surround audio signal enters power amplifier chip AN7522 by signal input pin Vin1 and Vin2 respectively to the voice signal of Doby 5.1 sound channels after capacitor C 592 and C593 coupling with it through 5.1 sound channel interfaces of television set, after its filter amplifying processing, export by its output pin OUT1+, OUT1-and OUT2+, OUT2-, be connected to the wireless transmission plate through connecting line XP508, the output of control wireless sound box.Wherein, be in series with resistance R 590 and resistance R 591 between output pin OUT1+, OUT1-and OUT2+, the OUT2-respectively, its ohmically " 2 " represent that this resistor power is 2W.
Include function pin Mute in power amplifier chip AN7522, it links to each other with cpu chip in the television set by a transistor V521.Wherein, the base stage of described triode V521 links to each other with the output control pin (the 7th pin) of CPU by resistance R 599A, collector electrode is leaded up to resistance R 598 and is linked to each other with+8V power supply side, and another road links to each other its grounded emitter by resistance R 592 with the function pin Mute of power amplifier chip AN7522.When the user sent quiet instruction by remote controller, CUP output high level signal control triode V521 conducting caused the current potential of the function pin Mute of power amplifier chip AN7522 to be dragged down, and blocks its output pin output, realizes quiet; When the user cancels quiet instruction, CUP output low level signal controlling triode V521 ends, at this moment, + 8V power supply affacts on the function pin Mute of power amplifier chip AN7522 by resistance R 592, its current potential is drawn high, and then control its output pin output, and drive wireless sound box output surround audio signal, played the quiet function of remote control thus.
In addition, power amplifier chip AN7522 also includes volume control pin VolCtrl, it links to each other with the volume adjusting pin (5 pin) of CPU with R597A by resistance R 597, by the control that the pulse-width signal PWM of CPU output finishes amplitude output signal, delivers to the output of wireless transmission plate then.
The operating voltage of wireless transmission plate is direct current+8V, is powered by TV set power.Wireless surround audio signal is input to expelling plate after modulation is gone out by transmission antennas transmit, after the built-in receiving element in the wireless sound box receives modulation signal, delivers to the audio amplifier power amplifier unit through the demodulator circuit demodulation, promotes the speaker operation of audio amplifier at last.The state (AV state) of the design by television set selects to control the break-make of power supply, can be under the state that does not need surround sound output power cutoff, expelling plate is quit work, avoid noise jamming, save power consumption simultaneously.Have the automatic mute circuit on the expelling plate, when the absence of audio signal is imported, on the expelling plate no signal is exported, thereby avoided when standby, producing into noise jamming.
In Doby 5.1 sound channel signals, mid-audio signal is being stored the speech signal of film usually, the left and right sound channels signal is then being stored the background music of film, therefore, how to make center signal effectively output be to guarantee normally the teleview key of machine program of spectators.The utility model is able to from left and right loud speaker output speech signal by center signal is superposeed with the left and right sound channels signal respectively, and its specific implementation circuit diagram is referring to shown in Figure 3.
Among Fig. 3, mid-audio signal one tunnel is after capacitor C 580 couplings, by penetrating with circuit and left channel audio signal stack of being made up of triode V519, resistance R 579, R580; Another road is after capacitor C 582 couplings, by penetrating of forming by triode V520, resistance R 583, R584 with circuit and right channel audio signal stack, signal after the stack enters the left and right sides input of this machine power amplifier, promotes the reproduction that this machine loud speaker is finished center signal and left and right acoustic channels audio signal after amplifying.
In addition, the supper bass signal is after realizing that through diverter switch (realizing by chip HEF4052) inside and outside supper bass signal (inner supper bass signal is meant the supper bass signal that is produced by the television set internal circuit) switches, this machine power amplifier of entering amplifies, and realizes its output by the supper bass loudspeaker that this machine is built-in.
The utility model has been realized the perfect adaptation of conventional television and wireless sound box making people really enjoy the dynamic effect of Doby 5.1 channel sound signals when watching TV programme by the foregoing circuit structure.Certainly; above-mentioned explanation is not to be to restriction of the present utility model; the utility model also is not limited in above-mentioned giving an example, and variation, remodeling, interpolation or replacement that those skilled in the art are made in essential scope of the present utility model also should belong to protection range of the present utility model.
Claims (5)
1. television set of being furnished with wireless sound box, include left and right sound channels loud speaker, supper bass loudspeaker and CPU, wherein, the left and right sound channels audio signal is exported by the left and right sound channels loud speaker after power amplification circuit filtering is amplified respectively, and the supper bass signal is exported by the supper bass loudspeaker after power amplifier amplifies; It is characterized in that: described television set also is furnished with wireless sound box, surround audio signal treatment circuit and wireless transmission plate in TV set circuit, have been set up, the left and right surround audio signal that described surround audio signal treatment circuit will receive under the control of CPU is exported to the wireless transmission plate, the output of control wireless sound box.
2. a kind of television set of being furnished with wireless sound box according to claim 1, it is characterized in that: in described TV set circuit, also include mid-audio signal receiving terminal, described mid-audio signal superposes with left channel signals and right-channel signals respectively by penetrating with circuit, and the audio signal after will superposeing is exported by the left and right sound channels loud speaker after power amplifier filtering is amplified.
3. a kind of television set of being furnished with wireless sound box according to claim 1 and 2, it is characterized in that: in described surround audio signal treatment circuit, also include quiet control end and volume adjustable side, receive the control signal that CPU sends respectively, realize the quiet control of wireless sound box and the adjusting of volume.
4. a kind of television set of being furnished with wireless sound box according to claim 3, it is characterized in that: the quiet control end of described surround audio signal treatment circuit links to each other with CPU by a transistor, wherein, the base stage of triode connects the control signal output ends of CPU, controls its conducting or ends; Collector electrode one tunnel connects power supply side, and another road links to each other its grounded emitter with the quiet control end of described surround audio signal treatment circuit.
5. a kind of television set of being furnished with wireless sound box according to claim 4 is characterized in that: described surround audio signal treatment circuit adopts a power amplifier chip AN7522 to realize.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200381221U CN2669532Y (en) | 2004-01-14 | 2004-01-14 | Television receiver with wireless audio box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200381221U CN2669532Y (en) | 2004-01-14 | 2004-01-14 | Television receiver with wireless audio box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2669532Y true CN2669532Y (en) | 2005-01-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2004200381221U Expired - Fee Related CN2669532Y (en) | 2004-01-14 | 2004-01-14 | Television receiver with wireless audio box |
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| Country | Link |
|---|---|
| CN (1) | CN2669532Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1816223B (en) * | 2005-02-06 | 2010-09-29 | 华硕电脑股份有限公司 | Wireless bass audio-system of electronic apparatus |
| CN105847454A (en) * | 2016-04-20 | 2016-08-10 | 乐视控股（北京）有限公司 | Signal processing method and device |
| CN106954144A (en) * | 2017-03-15 | 2017-07-14 | 四川长虹电器股份有限公司 | Television acoustics system |
| CN113674519A (en) * | 2020-05-14 | 2021-11-19 | 许祐豪 | Loudspeaker sound channel audio control system |
-
2004
- 2004-01-14 CN CNU2004200381221U patent/CN2669532Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1816223B (en) * | 2005-02-06 | 2010-09-29 | 华硕电脑股份有限公司 | Wireless bass audio-system of electronic apparatus |
| CN105847454A (en) * | 2016-04-20 | 2016-08-10 | 乐视控股（北京）有限公司 | Signal processing method and device |
| CN106954144A (en) * | 2017-03-15 | 2017-07-14 | 四川长虹电器股份有限公司 | Television acoustics system |
| CN113674519A (en) * | 2020-05-14 | 2021-11-19 | 许祐豪 | Loudspeaker sound channel audio control system |
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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 |