CN202085306U - Sound output device, sound equipment and sound system - Google Patents
Sound output device, sound equipment and sound system Download PDFInfo
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- CN202085306U CN202085306U CN2011200854704U CN201120085470U CN202085306U CN 202085306 U CN202085306 U CN 202085306U CN 2011200854704 U CN2011200854704 U CN 2011200854704U CN 201120085470 U CN201120085470 U CN 201120085470U CN 202085306 U CN202085306 U CN 202085306U
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Abstract
The utility model provides a sound output device, sound equipment and a sound system. The sound output device comprises a first interface for receiving an input sound signal. The first interface is connected with an analog-to-digital conversion circuit for converting a sound signal into a digital signal, the analog-to-digital conversion circuit is connected with a processor unit for converting the digital signal into a pulse decode modulation sound signal, the processor unit is connected with a baseband chip for sending the pulse decode modulation sound signal to a bluetooth chip, and the bluetooth chip is connected with a bluetooth antenna for converting the pulse decode modulation sound signal into a wireless signal and launching the wireless signal. By utilizing the technical method, the sound signal output by the sound equipment is converted into the wireless signal in accordance with the bluetooth standard by adopting the bluetooth technology, so that a user can receive sound output by the sound equipment under the condition of not interrupting other people, and is provided convenient and fast bluetooth technology application.
Description
Technical field
The utility model relates to wireless communication technology, is meant a kind of sound outputting device, stereo set and sound system especially.
Background technology
Can be applied to various electrical equipment in the daily life, this comprises TV, audio amplifier, CD, personal computer stereo sets such as (PC), and these stereo sets all do not dispose wireless reciever device usually, but by the loudspeaker output sound.Under some situation, the user does not wish that the sound of stereo set output influences other household, and listens to the audio frequency of stereo set output under the situation of not disturbing the household.
The inventor finds prior art, and there are the following problems: in the prior art, stereo set can disturb other people by the sound of loudspeaker output.
The utility model content
The technical problems to be solved in the utility model provides a kind of sound outputting device, stereo set and sound system, receives the sound of stereo set output under the condition of not disturbing other people for the user.
For solving the problems of the technologies described above, embodiment of the present utility model provides a kind of sound outputting device, comprising: be used to receive first interface of the audio signal of input, be connected with an analog to digital conversion circuit that is used for described audio signal is converted to digital signal; The processor unit that analog-digital conversion circuit as described and is used for described digital signal is converted into the pulse code modulation audio signal is connected; Described processor unit and one is used for the baseband chip that described pulse code modulation audio signal sends to Bluetooth chip is connected; Described Bluetooth chip with one with described pulse code modulation audio signal be converted into wireless signal and the emission Bluetooth antenna be connected.
In the described device, also comprise: be used for exporting the patchcord of described audio signal, be connected with described first interface from stereo set.
In the described device, described patchcord has multiple interfaces, and each interface can connect the stereo set of corresponding types.
In the described device, also comprise: first switch, with described first interface, analog to digital conversion circuit, and first wife's voicefrequency circuit connects; Described first switch is used for will arriving analog-digital conversion circuit as described from the described audio signal transmission of described first interface under first state, and will arrive analog-digital conversion circuit as described from the audio signal transmission of described first wife's voicefrequency circuit under second state.
In the described device, also comprise: second switch, be connected with described processor unit, Bluetooth chip and baseband chip, be used under the third state, will giving described baseband chip from the described pulse code modulation audio signal transmission of described processor unit; And under four condition, will be transferred to described baseband chip from the signal of described Bluetooth chip.
A kind of stereo set comprises a sound outputting device, comprises in the described sound outputting device: be used to receive first interface of the audio signal of input, be connected with an analog to digital conversion circuit that is used for described audio signal is converted to digital signal; The processor unit that analog-digital conversion circuit as described and is used for described digital signal is converted into the pulse code modulation audio signal is connected; Described processor unit and one is used for the baseband chip that described pulse code modulation audio signal sends to Bluetooth chip is connected; Described Bluetooth chip with one with described pulse code modulation audio signal be converted into wireless signal and the emission Bluetooth antenna be connected.
In the described stereo set, also comprise: be used for exporting the patchcord of described audio signal, be connected with described first interface from stereo set; Described patchcord has multiple interfaces, and each interface can connect the stereo set of corresponding types.
In the described stereo set, also comprise: first switch, with described first interface, analog to digital conversion circuit, and first wife's voicefrequency circuit connects; Described first switch is used for will arriving analog-digital conversion circuit as described from the described audio signal transmission of described first interface under first state, and will arrive analog-digital conversion circuit as described from the audio signal transmission of described first wife's voicefrequency circuit under second state.
In the described stereo set, also comprise: second switch, be connected with described processor unit, Bluetooth chip and baseband chip, be used under the third state, will giving described baseband chip from the described pulse code modulation audio signal transmission of described processor unit; And under four condition, will be transferred to described baseband chip from the signal of described Bluetooth chip.
A kind of sound system, comprise: a stereo set, comprise a sound outputting device in the described stereo set, comprise in the described sound outputting device: be used to receive first interface of the audio signal of input, be connected with an analog to digital conversion circuit that is used for described audio signal is converted to digital signal; The processor unit that analog-digital conversion circuit as described and is used for described digital signal is converted into the pulse code modulation audio signal is connected; Described processor unit and one is used for the baseband chip that described pulse code modulation audio signal sends to Bluetooth chip is connected; Described Bluetooth chip with one with described pulse code modulation audio signal be converted into wireless signal and the emission Bluetooth antenna be connected; And, be used to receive described wireless signal, and wireless signal be reduced into the bluetooth earphone of sound.
The beneficial effect of technique scheme of the present utility model is as follows: adopt Bluetooth technology that the audio signal of stereo set output is converted to the wireless signal that meets bluetooth standard, make the user can listen to the sound of stereo set output by bluetooth earphone under the condition of not disturbing other people, Bluetooth technology application efficiently provides users with the convenient.
Description of drawings
Fig. 1 is the utility model embodiment sound outputting device structural representation one;
Fig. 2 is the utility model embodiment sound outputting device structural representation two;
Fig. 3 is a kind of sound system structural representation of the utility model embodiment.
Embodiment
For making the technical problems to be solved in the utility model, technical scheme and advantage clearer, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
The utility model embodiment provides a kind of sound outputting device, as shown in Figure 1, comprising:
Be used to receive first interface 101 of the audio signal of input, with one be used for described audio signal be converted to digital signal modulus (A/D, Analog-to-Digital) change-over circuit 102 connects;
The processor unit 103 that analog-digital conversion circuit as described 102 and is used for described digital signal is converted into the pulse code modulation audio signal is connected;
The baseband chip 104 that described processor unit 103 and is used for described pulse code modulation audio signal is sent to Bluetooth chip 105 is connected;
Described Bluetooth chip 105 with one with described pulse code modulation audio signal be converted into wireless signal and the emission Bluetooth antenna 106 be connected.
The technological means that is provided is provided, adopt Bluetooth technology that the audio signal of stereo set output is converted to the wireless signal that meets bluetooth standard, make the user can receive the sound of stereo set output under the condition of not disturbing other people, Bluetooth technology application efficiently provides users with the convenient.
Wherein, be used for exporting the patchcord of described audio signal, be connected with described first interface 101 from stereo set.Described patchcord has multiple interfaces, and each interface can connect the stereo set of corresponding types.In application process, can adopt many data lines, each data lines carries a kind of port, and for example, first data lines is carried 1394 ports, second data lines is carried USB port etc.; These many data lines are bundled the formation patchcord.
Bluetooth technology is the open global specifications of a kind of wireless data and voice communication, and it is connected to the basis with near radio cheaply, communicates to connect especially for setting up one between permanent plant and the mobile device.The Bluetooth technology data rate is 1Mb/s, uses the IEEE802.15 agreement, adopts the time division duplex transmission technology to realize full duplex transmission.
Bluetooth technology is operated in 2.4GHz ISM (i.e. industry, science, the medical science) frequency range of global general-use, the ISM frequency band is the frequency band that all radio systems are all opened, therefore use certain frequency range wherein all can run into uncertain interference source, for example some household electrical appliances, cordless telephone, garage door opener, microwave oven or the like all may be potential interference sources.For this reason, Bluetooth technology has designed quick affirmation especially and hopping scheme is stable to guarantee link: frequency hopping is that frequency band is divided into several frequency hopping channels (hop channel), radio transceiver constantly jumps to one other channel from a channel by certain pseudo-random code sequence in once connecting, and have only receiving-transmitting sides to communicate by this rule, other interference source can not produce by same rule and disturb; The instant bandwidth of frequency hopping is very narrow, but makes this narrow bandwidth become hundred times of ground to be extended to broadband by spread spectrum technique, makes very little that the influence of interference becomes.The frequency hopping transceiver of having used binary frequency modulation (FM) technology is used to suppress to disturb and prevent decline.
Compare with other technology that is operated in similar frequency bands, the Bluetooth technology frequency hopping is faster, and packet is shorter, and this makes Bluetooth technology more stable than other technology, and the forward error correction technique (FEC, Forward Error Correction) that Bluetooth technology is used has suppressed the random noise of long-distance link.
Bluetooth baseband protocol(BBP) is circuit switching and the agreement that combines of packet switching, transmitting synchronous packet in the time slot that is retained, each packet sends with different frequencies, nominally a packet takies a time slot, takies 5 time slots but in fact can be extended to.Bluetooth technology is supported asynchronous channel, has 3 synchronous voice channels of carrying out simultaneously, can also transmit asynchronous data and synchronous speech simultaneously with a channel, and each voice channel is supported the synchronous voice link of 64kb/s; Asynchronous channel can support that an end maximum rate is 721kb/s and other end speed is the asymmetric connection of 57.6kb/s, also can support the symmetry of 43.2kb/s to connect.The Bluetooth technology has obtained unprecedentedly using widely, the product of integrated with Bluetooth technology has comprised mobile communication terminal, automobile and Medical Devices, low-power consumption, small size and cheaply the chip solution make Bluetooth technology even can be applied in the atomic little equipment.
As shown in Figure 2, sound outputting device also comprises:
First switch, with described first interface 101, A/D change-over circuit 102, and first wife's voicefrequency circuit connects;
Described first switch is used for will arriving described A/D change-over circuit 102 from the described audio signal transmission of described first interface 101 under first state, and will arrive described A/D change-over circuit 102 from the audio signal transmission of described first wife's voicefrequency circuit under second state.
Second switch is connected with described processor unit 103, Bluetooth chip 105 and baseband chip 104, is used for will giving described baseband chip 104 from the described pulse code modulation audio signal transmission of described processor unit 103 under the third state; And under four condition, will be transferred to described baseband chip 104 from the signal of described Bluetooth chip 105.
Corresponding, the utility model embodiment provides a kind of stereo set, comprises a sound outputting device, comprises in the described sound outputting device:
Be used to receive first interface 101 of the audio signal of input, be connected with an A/D change-over circuit 102 that is used for described audio signal is converted to digital signal;
The processor unit 103 that described A/D change-over circuit 102 and is used for described digital signal is converted into the pulse code modulation audio signal is connected;
The baseband chip 104 that described processor unit 103 and is used for described pulse code modulation audio signal is sent to Bluetooth chip 105 is connected;
Described Bluetooth chip 105 with one with described pulse code modulation audio signal be converted into wireless signal and the emission Bluetooth antenna 106 be connected.
The technological means that is provided is provided, adopt Bluetooth technology that the audio signal of stereo set place output is converted to the wireless signal that meets bluetooth standard, make the user under the condition of not disturbing other people, to receive radio wave and to convert sound to, the sound of the various stereo set outputs of uppick by bluetooth earphone.
In an application scenarios, use mobile communication terminal to listen to the sound of home audio equipment such as TV, PC with Bluetooth technology, comprising:
By patchcord the audio signal of home audio equipment such as TV, PC is input in the audio interface of mobile communication terminal, audio signal is delivered to A/D change-over circuit 102, analog signal conversion is become digital signal by A/D change-over circuit 102 by switching circuit; The DSP circuit changes into the baseband chip 104 that the pcm audio signal is given mobile communication terminal to digital signal; Baseband chip 104 is given the Bluetooth chip 105 of mobile communication terminal inside the pcm audio signal; Bluetooth chip 105 is delivered to the pcm audio signal Bluetooth antenna 106 of mobile communication terminal; Bluetooth antenna 106 changes into radio wave to signal and launches.
Use the mobile communication terminal that is provided as sound outputting device, this sound outputting device is connected on the stereo set, listen to the sound of home audio equipment output by wireless mode, make the user can be at the sound equipment of uppick home audio equipment output in the quiet environment and can interference effect other people, and sound equipment that can the good home audio equipment of listening to output under noisy environment.
Corresponding, the utility model embodiment provides a kind of sound system, as shown in Figure 3, comprising:
One stereo set comprises a sound outputting device in the described stereo set, comprise in the described sound outputting device:
Be used to receive first interface 101 of the audio signal of input, be connected with an A/D change-over circuit 102 that is used for described audio signal is converted to digital signal;
The processor unit 103 that described A/D change-over circuit 102 and is used for described digital signal is converted into the pulse code modulation audio signal is connected;
The baseband chip 104 that described processor unit 103 and is used for described pulse code modulation audio signal is sent to Bluetooth chip 105 is connected;
Described Bluetooth chip 105 with one with described pulse code modulation audio signal be converted into wireless signal and the emission Bluetooth antenna 106 be connected;
And,
Be used to receive described wireless signal, and wireless signal be reduced into the bluetooth earphone of sound.
The mobile communication terminal that application is provided is as sound outputting device, this sound outputting device is connected on the stereo set, adopt bluetooth earphone to listen to the sound of home audio equipment output by wireless mode, make the user can be at the sound equipment of uppick home audio equipment output in the quiet environment and can interference effect other people, and sound equipment that can the good home audio equipment of listening to output under noisy environment.
The above is a preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from principle described in the utility model; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (10)
1. a sound outputting device is characterized in that, comprising:
Be used to receive first interface of the audio signal of input, be connected with an analog to digital conversion circuit that is used for described audio signal is converted to digital signal;
The processor unit that analog-digital conversion circuit as described and is used for described digital signal is converted into the pulse code modulation audio signal is connected;
Described processor unit and one is used for the baseband chip that described pulse code modulation audio signal sends to Bluetooth chip is connected;
Described Bluetooth chip with one with described pulse code modulation audio signal be converted into wireless signal and the emission Bluetooth antenna be connected.
2. device according to claim 1 is characterized in that, also comprises:
Be used for exporting the patchcord of described audio signal, be connected with described first interface from stereo set.
3. device according to claim 2 is characterized in that,
Described patchcord has multiple interfaces, and each interface can connect the stereo set of corresponding types.
4. device according to claim 1 is characterized in that, also comprises:
First switch, with described first interface, analog to digital conversion circuit, and first wife's voicefrequency circuit connects;
Described first switch is used for will arriving analog-digital conversion circuit as described from the described audio signal transmission of described first interface under first state, and will arrive analog-digital conversion circuit as described from the audio signal transmission of described first wife's voicefrequency circuit under second state.
5. device according to claim 1 is characterized in that, also comprises:
Second switch is connected with described processor unit, Bluetooth chip and baseband chip, is used for will giving described baseband chip from the described pulse code modulation audio signal transmission of described processor unit under the third state; And under four condition, will be transferred to described baseband chip from the signal of described Bluetooth chip.
6. a stereo set is characterized in that, comprises a sound outputting device, comprises in the described sound outputting device:
Be used to receive first interface of the audio signal of input, be connected with an analog to digital conversion circuit that is used for described audio signal is converted to digital signal;
The processor unit that analog-digital conversion circuit as described and is used for described digital signal is converted into the pulse code modulation audio signal is connected;
Described processor unit and one is used for the baseband chip that described pulse code modulation audio signal sends to Bluetooth chip is connected;
Described Bluetooth chip with one with described pulse code modulation audio signal be converted into wireless signal and the emission Bluetooth antenna be connected.
7. stereo set according to claim 6 is characterized in that, also comprises:
Be used for exporting the patchcord of described audio signal, be connected with described first interface from stereo set;
Described patchcord has multiple interfaces, and each interface can connect the stereo set of corresponding types.
8. stereo set according to claim 6 is characterized in that, also comprises:
First switch, with described first interface, analog to digital conversion circuit, and first wife's voicefrequency circuit connects;
Described first switch is used for will arriving analog-digital conversion circuit as described from the described audio signal transmission of described first interface under first state, and will arrive analog-digital conversion circuit as described from the audio signal transmission of described first wife's voicefrequency circuit under second state.
9. stereo set according to claim 6 is characterized in that, also comprises:
Second switch is connected with described processor unit, Bluetooth chip and baseband chip, is used for will giving described baseband chip from the described pulse code modulation audio signal transmission of described processor unit under the third state; And under four condition, will be transferred to described baseband chip from the signal of described Bluetooth chip.
10. a sound system is characterized in that, comprising:
One stereo set comprises a sound outputting device in the described stereo set, comprise in the described sound outputting device:
Be used to receive first interface of the audio signal of input, be connected with an analog to digital conversion circuit that is used for described audio signal is converted to digital signal;
The processor unit that analog-digital conversion circuit as described and is used for described digital signal is converted into the pulse code modulation audio signal is connected;
Described processor unit and one is used for the baseband chip that described pulse code modulation audio signal sends to Bluetooth chip is connected;
Described Bluetooth chip with one with described pulse code modulation audio signal be converted into wireless signal and the emission Bluetooth antenna be connected;
And,
Be used to receive described wireless signal, and wireless signal be reduced into the bluetooth earphone of sound.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200854704U CN202085306U (en) | 2011-03-28 | 2011-03-28 | Sound output device, sound equipment and sound system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200854704U CN202085306U (en) | 2011-03-28 | 2011-03-28 | Sound output device, sound equipment and sound system |
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| Publication Number | Publication Date |
|---|---|
| CN202085306U true CN202085306U (en) | 2011-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011200854704U Expired - Lifetime CN202085306U (en) | 2011-03-28 | 2011-03-28 | Sound output device, sound equipment and sound system |
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| CN (1) | CN202085306U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105653237A (en) * | 2016-02-01 | 2016-06-08 | 宇龙计算机通信科技(深圳)有限公司 | Audio playing control method and system and terminal |
| CN105812992A (en) * | 2016-04-26 | 2016-07-27 | 镇江艾迪智能科技有限公司 | 86 type Bluetooth transmitting panel |
| CN105812967A (en) * | 2016-04-26 | 2016-07-27 | 镇江艾迪智能科技有限公司 | 86 type Bluetooth audio panel |
-
2011
- 2011-03-28 CN CN2011200854704U patent/CN202085306U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105653237A (en) * | 2016-02-01 | 2016-06-08 | 宇龙计算机通信科技(深圳)有限公司 | Audio playing control method and system and terminal |
| CN105653237B (en) * | 2016-02-01 | 2019-03-22 | 宇龙计算机通信科技(深圳)有限公司 | Audio play control method, audio broadcasting control system and terminal |
| CN105812992A (en) * | 2016-04-26 | 2016-07-27 | 镇江艾迪智能科技有限公司 | 86 type Bluetooth transmitting panel |
| CN105812967A (en) * | 2016-04-26 | 2016-07-27 | 镇江艾迪智能科技有限公司 | 86 type Bluetooth audio panel |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Nanshan District Xili street Shahe road 518000 Shenzhen City, Guangdong province No. 3151 emerging industrial park (Jian Xing Technology Building B building 801-805) Patentee after: Shenzhen Technology Co., Ltd. Address before: 518040 Futian District, Guangdong, Tian An digital city innovation and Technology Plaza, east block, phase 2, No., No. 1101 Patentee before: Shenzhen Doov Technology Co., Ltd. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20170731 Address after: 644005, 21, 27 and 7, west section of port Park Avenue, Lingang Economic and Technological Development Zone, Sichuan, Yibin Patentee after: Sichuan doov intelligent Yungu Limited Address before: Nanshan District Xili street Shahe road 518000 Shenzhen City, Guangdong province No. 3151 emerging industrial park (Jian Xing Technology Building B building 801-805) Patentee before: Shenzhen Technology Co., Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111221 |