CN201118992Y - A wireless sound box device - Google Patents
A wireless sound box device Download PDFInfo
- Publication number
- CN201118992Y CN201118992Y CNU2007200596212U CN200720059621U CN201118992Y CN 201118992 Y CN201118992 Y CN 201118992Y CN U2007200596212 U CNU2007200596212 U CN U2007200596212U CN 200720059621 U CN200720059621 U CN 200720059621U CN 201118992 Y CN201118992 Y CN 201118992Y
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- circuit
- power amplifier
- sound box
- box device
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Abstract
The utility model relates to the loudspeaker enclosure technical field, in particular to a wireless loudspeaker enclosure device. The device is composed of a sending device and a receiving device, wherein, inputted sound signals are switched into frequency modulated signals and sent to the receiving device by the sending device, after the frequency modulated signals are received by the receiving device, amd the sound signals are demodulated and output to a loudspeaker. Thereby, the wireless transmission between the loudspeaker enclosure and an inputted sound source is realized, therefore, not only the installation and debugging, and the movement of the loudspeaker enclosure can be easier and more convenient, but also the installation space of the loudspeaker enclosure equipment is saved; both the sending device and the receiving device are provided with a USB charging output interface, to ensure that electronic products can be charged simultaneously during the playing music. The wireless loudspeaker enclosure device has the advantages that the design is reasonable, and the operation is easy.
Description
Technical field:
The utility model relates to the audio amplifier technical field, refers in particular to a kind of wireless sound box device.
Background technology:
Along with the development of society, the abstract the recreational consumption of family is in quick growth, and increasing recreation electronic product has entered ordinary people's family, as DVD, MP3 and IPOD.In order to reach good acoustics, these recreation electronic products all will connect the audio amplifier output audio signal, but, most now audio amplifiers all is to adopt lead to be connected with source of sound, this connected mode is given installation, the debugging of audio amplifier and is moved and brought very big trouble, especially smaller room and place, space, the wiring of audio amplifier, move inconvenient especially.
The utility model content:
The purpose of this utility model is exactly to provide a kind of wireless sound box device at the deficiency of prior art existence, and it adopts FM signal to realize wireless transmission, and can charge to electronic product simultaneously.
To achieve these goals, the technical solution adopted in the utility model is: it is made up of emitter and receiving system, emitter comprises audio input interface, the stereo modulation circuit, oscillator and fm modulation circuit, amplify and radiating circuit, antenna that is used to transmit and first power circuit that is used for providing power supply to each circuit of emitter, audio input interface, the stereo modulation circuit, oscillator and fm modulation circuit, amplification and radiating circuit are connected in order with antenna, and oscillator and fm modulation circuit are connected with PLL (Phase-Locked Loop) circuit that is used for stablizing tranmitting frequency; Receiving system comprises receiving demodulation circuit, audio frequency input and selection circuit, volume control circuit, frequency dividing circuit, power amplifier, loud speaker and is used for providing the second source circuit of power supply to each circuit of receiving system that receiving demodulation circuit, audio frequency input and selection circuit, volume control circuit, frequency dividing circuit, power amplifier are connected in order with loud speaker.
The output of described first power circuit is connected with voltage stabilizing circuit, amplification and radiating circuit respectively, and the output of voltage stabilizing circuit is connected with stereo modulation circuit, oscillator and fm modulation circuit, PLL circuit respectively.
The output of described voltage stabilizing circuit also is connected with USB charging output interface.
Described power amplifier comprises high pitch power amplifier, bass power amplifier, and high pitch power amplifier, bass power amplifier are connected with loud speaker respectively.
The output of described second source circuit is connected with the 2nd USB charging output interface.
The utility model beneficial effect is: it is made up of emitter and receiving system, emitter is converted to FM signal with the audio signal of importing and is transmitted to receiving device, demodulation and output audio signal are to loud speaker after the receiving device reception FM signal, thereby realized the wireless transmission between audio amplifier and the input source of sound, make audio amplifier Installation and Debugging, moving can be more convenient and easy, has also saved the space that audio amplifier equipment is installed; Emitter and receiving system all are provided with USB charging output interface, make electronic product in playing back music, can charge to electronic product simultaneously; Be provided with the PLL circuit in the emitter, guaranteed that the output signal of not drift of tranmitting frequency, receiving system of emitter is undistorted; Receiving system is provided with the audio frequency input and selects circuit, except can receiving the audio signal from receiving demodulation circuit, can also receive the audio signal of direct input.In sum, the utility model is reasonable in design, easy to use.
Description of drawings:
Fig. 1 is a theory diagram of the present utility model;
Fig. 2 is the theory diagram of the utility model emitter;
Fig. 3 is the theory diagram of the utility model receiving system.
Embodiment:
Below in conjunction with accompanying drawing the utility model is further described, see Fig. 1,2, shown in 3, a kind of wireless sound box device, it is made up of emitter 1 and receiving system 2, emitter 1 comprises audio input interface 11, stereo modulation circuit 12, oscillator and fm modulation circuit 13, amplify and radiating circuit 14, antenna that is used to transmit and first power circuit 15 that is used for providing power supply to emitter 1 each circuit, audio input interface 11, stereo modulation circuit 12, oscillator and fm modulation circuit 13, amplify and radiating circuit 14, antenna connects in order, oscillator and fm modulation circuit 13 are connected with the PLL circuit that is used for stablizing tranmitting frequency, have guaranteed that tranmitting frequency is stabilized in the 49.86M hertz; Receiving system 2 comprises receiving demodulation circuit 21, audio frequency input and selection circuit 22, volume control circuit 23, frequency dividing circuit 24, power amplifier, loud speaker and is used for providing the second source circuit 26 of power supply to receiving system 2 each circuit that receiving demodulation circuit 21, audio frequency input and selection circuit 22, volume control circuit 23, frequency dividing circuit 24, power amplifier are connected in order with loud speaker.
The output of described first power circuit 15 is connected with voltage stabilizing circuit 17, amplification and radiating circuit 14 respectively, and the output of voltage stabilizing circuit 17 is connected with stereo modulation circuit 12, oscillator and fm modulation circuit 13, PLL circuit 16 respectively.
The output of described voltage stabilizing circuit 17 also is connected with USB charging output interface 18, and exportable 5V voltage charges for MP3, IPOD etc.
Described power amplifier comprises high pitch power amplifier 251, bass power amplifier 252, and high pitch power amplifier 251, bass power amplifier 252 are connected with loud speaker respectively.
The output of described second source circuit 26 is connected with the 2nd USB charging output interface 27, and exportable 5V voltage charges for MP3, IPOD etc.
After the utility model emitter 1 and receiving system 2 startups, the output audio plug of electronic product is connected with the audio input interface 11 of emitter 1, after the audio signal of input is modulated through stereo modulation circuit 12, enter oscillator and fm modulation circuit 13, oscillator and fm modulation circuit 13 output FM signal are to amplifying and radiating circuit 14, be transmitted to receiving system 2 by the antenna that is connected with amplification and radiating circuit 14 then, the transmitting range of emitter 1 is 20 meters, the receiving demodulation circuit 21 of receiving system 2 is demodulated into audio signal with the FM signal that receives, send the audio frequency input to and select circuit 22, audio frequency input and the audio signal process volume control circuit 23 of selecting circuit 22 to export, frequency dividing circuit 24 enters high pitch power amplifier 251 respectively, bass power amplifier 252 promotes high pitch more respectively, woofer work is sounded.
The above only is preferred embodiment of the present utility model, so all equivalences of doing according to the described structure of the utility model patent claim, feature and principle change or modify, is included in the utility model patent claim.
Claims (5)
1, a kind of wireless sound box device, it is characterized in that: it is made up of emitter (1) and receiving system (2), emitter (1) comprises audio input interface (11), stereo modulation circuit (12), oscillator and fm modulation circuit (13), amplify and radiating circuit (14), antenna that is used to transmit and first power circuit (15) that is used for providing power supply to each circuit of emitter (1), audio input interface (11), stereo modulation circuit (12), oscillator and fm modulation circuit (13), amplification and radiating circuit (14) are connected in order with antenna, and oscillator and fm modulation circuit (13) are connected with the PLL circuit (16) that is used for stablizing tranmitting frequency; Receiving system (2) comprises receiving demodulation circuit (21), audio frequency input and selection circuit (22), volume control circuit (23), frequency dividing circuit (24), power amplifier, loud speaker and is used for providing the second source circuit (26) of power supply to each circuit of receiving system (2) that receiving demodulation circuit (21), audio frequency input and selection circuit (22), volume control circuit (23), frequency dividing circuit (24), power amplifier are connected in order with loud speaker.
2, a kind of wireless sound box device according to claim 1, it is characterized in that: the output of described first power circuit (15) is connected with voltage stabilizing circuit (17), amplification and radiating circuit (14) respectively, and the output of voltage stabilizing circuit (17) is connected with stereo modulation circuit (12), oscillator and fm modulation circuit (13), PLL circuit (16) respectively.
3, a kind of wireless sound box device according to claim 1 and 2 is characterized in that: the output of described voltage stabilizing circuit (17) also is connected with USB charging output interface (18).
4, a kind of wireless sound box device according to claim 1, it is characterized in that: described power amplifier comprises high pitch power amplifier (251), bass power amplifier (252), and high pitch power amplifier (251), bass power amplifier (252) are connected with loud speaker respectively.
5, a kind of wireless sound box device according to claim 1 is characterized in that: the output of described second source circuit (26) is connected with the 2nd USB charging output interface (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200596212U CN201118992Y (en) | 2007-11-16 | 2007-11-16 | A wireless sound box device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200596212U CN201118992Y (en) | 2007-11-16 | 2007-11-16 | A wireless sound box device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201118992Y true CN201118992Y (en) | 2008-09-17 |
Family
ID=39993594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200596212U Expired - Fee Related CN201118992Y (en) | 2007-11-16 | 2007-11-16 | A wireless sound box device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201118992Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102572670A (en) * | 2010-12-27 | 2012-07-11 | 北京华旗随身数码股份有限公司 | One-to-many wireless frequency modulation (FM) loudspeaker box system |
| CN105721987A (en) * | 2016-01-26 | 2016-06-29 | 上海智觅智能科技有限公司 | Method for realizing distributed speaker by employing Bluetooth |
| CN107950036A (en) * | 2015-09-03 | 2018-04-20 | 杜比实验室特许公司 | For controlling the audio rod of wireless speaker |
| US11166101B2 (en) | 2015-09-03 | 2021-11-02 | Dolby Laboratories Licensing Corporation | Audio stick for controlling wireless speakers |
-
2007
- 2007-11-16 CN CNU2007200596212U patent/CN201118992Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102572670A (en) * | 2010-12-27 | 2012-07-11 | 北京华旗随身数码股份有限公司 | One-to-many wireless frequency modulation (FM) loudspeaker box system |
| CN107950036A (en) * | 2015-09-03 | 2018-04-20 | 杜比实验室特许公司 | For controlling the audio rod of wireless speaker |
| CN107950036B (en) * | 2015-09-03 | 2020-06-05 | 杜比实验室特许公司 | Audio bar for controlling wireless speakers |
| US11166101B2 (en) | 2015-09-03 | 2021-11-02 | Dolby Laboratories Licensing Corporation | Audio stick for controlling wireless speakers |
| CN105721987A (en) * | 2016-01-26 | 2016-06-29 | 上海智觅智能科技有限公司 | Method for realizing distributed speaker by employing Bluetooth |
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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: 20080917 Termination date: 20121116 |