CN204733348U - The playback equipment of tool bluetooth transceiver therein - Google Patents
The playback equipment of tool bluetooth transceiver therein Download PDFInfo
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- CN204733348U CN204733348U CN201520409293.9U CN201520409293U CN204733348U CN 204733348 U CN204733348 U CN 204733348U CN 201520409293 U CN201520409293 U CN 201520409293U CN 204733348 U CN204733348 U CN 204733348U
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Abstract
A playback equipment for tool bluetooth transceiver therein, for carrying out radio communication with an audio devices that can export a sound source signal, or converses with a communicator.This playback equipment comprises a bluetooth transceiver therein and a public address system.This bluetooth transceiver therein comprises a delivery unit and a receiving element.This delivery unit has a signal input part and a transfer circuit.This receiving element has a signal efferent and a receiving circuit.This public address system comprises the input part that this signal efferent of a confession is installed, and a broadcasting unit.This delivery unit and this receiving element based on identical message transmission specification and a kind of transfer encoding, to reduce signal delay time.This transfer circuit receives this sound source signal, and exports a Bluetooth signal to this receiving circuit, then exports an audio signal to this broadcasting unit by this receiving circuit, to export a sound.
Description
Technical field
The utility model relates to a kind of playback equipment, particularly relates to a kind of playback equipment of tool bluetooth transceiver therein.
Background technology
AptX audio compression coding and decoding technology has thoroughly overturned the listening experience of Bluetooth stereo sound equipment, can provide high-quality ANTENN AUDIO for the consumer electronics such as blue-tooth stereo earphone, all kinds of sound equipments application apparatus.Its application makes to support that the equipment of stereosonic blue tooth A2DP connection can export the audio frequency of quality as CD.
But, although aptX technology overcomes the problem of preceding Bluetooth audio frequency in tonequality, but developer still needs to solve the latency issue that Bluetooth audio frequency produces when transmitting, so that for using audio-visual devices viewing film or the user that plays games to develop high-quality wireless headset and acoustic product.Wherein, time delay refer to audio signal from audio signal source-as audio-visual devices such as intelligent mobile phone, media player or computer-transfer to radio receiver-as sound equipment or earphone-broadcasting time of spending.And in order to reach user can accept and assert the audio-visual-sound listened to and image watched-synchronous, time delay must control within 40 milliseconds (ms).But the time of delay of existing Bluetooth technology is all more than 100 milliseconds, so various settling mode and product just arise at the historic moment.
Summary of the invention
The purpose of this utility model is to provide a kind of based on same transmission specification and coding settings, to reduce the playback equipment of the tool bluetooth transceiver therein of time of delay.
The playback equipment of the utility model tool bluetooth transceiver therein, can carry out radio communication with an audio devices, and comprises a bluetooth transceiver therein and a public address system.This public address system comprises an input part, and the broadcasting unit of this input part of electrical connection, and this audio devices comprises one for exporting the efferent of a sound source signal.
This bluetooth transceiver therein comprises a delivery unit and a receiving element.This delivery unit has the signal input part that is detachably arranged at this efferent, and a transfer circuit be electrically connected with this signal input part.This receiving element has the signal efferent that is detachably arranged at this input part, and a receiving circuit be electrically connected with this signal efferent.This delivery unit and this receiving element are based on identical message transmission specification and a kind of transfer encoding.This transfer circuit receives this sound source signal, and exports the Bluetooth signal that is relevant to this sound source signal.This receiving circuit receives this Bluetooth signal, and exports the audio signal that is relevant to this Bluetooth signal.This broadcasting unit receives this audio signal, and exports the sound that one is relevant to this audio signal.
Preferably, this message transmission specification is Bluetooth stereo message transmission specification (Advance Audio Distribution Profile, A2DP).
Preferably, this transfer encoding is flow (Fast Stream) form fast.
Preferably, this transfer circuit comprises an analog to digital converter and a signal sends module, this analog to digital converter is according to this this sound source signal of transfer encoding digitized processing, to obtain the digital signal that is relevant to this result, this signal sends module and receives this digital signal, and transmits this Bluetooth signal according to this message transmission specification.
Preferably, this receiving circuit comprises a Signal reception module, and this Signal reception module receives this Bluetooth signal based on this message transmission specification, and exports this audio signal being relevant to this Bluetooth signal according to this transfer encoding.
Preferably, this receiving circuit comprises a Signal reception module, a signal gain module, and a gain regulation piece, this Signal reception module is based on this message transmission specification, and receive this Bluetooth signal according to this transfer encoding, to export the electric wave signal that is relevant to this Bluetooth signal, this signal gain module receives this electric wave signal, and adjust the gain of this electric wave signal amplitude according to the setting of this gain regulation piece, to export this audio signal being relevant to this adjustment result.
Preferably, this gain regulation piece has one can press the increment button that input one improves gain command, and one can press the decrement button that input one reduces gain command, this raising gain command make the gain of this electric wave signal amplitude on the occasion of, this reduction gain command makes the gain of this electric wave signal amplitude be negative value.
Preferably, this broadcasting unit has at least one for exporting the loud speaker of this sound.
Preferably, this receiving element also has an originating circuit, and this originating circuit comprises a microphone, and a module of giving orders or instructions, and this module of giving orders or instructions receives a reception signals from this microphone, and wireless transmission one is relevant to the signal of giving orders or instructions of this reception signals.
The beneficial effects of the utility model are: by this delivery unit with this receiving element based on this identical message transmission specification and this transfer encoding, make this Bluetooth signal in coding, decoding, and in transmission, the time delay that causes can reduce.
Accompanying drawing explanation
Of the present utility model other feature and effect, clearly present in reference to graphic execution mode, wherein:
Fig. 1 is one and uses schematic diagram, and an embodiment and an audio devices of the playback equipment of the utility model tool bluetooth transceiver therein are described, the public address system in this embodiment is an earphone, and this audio devices is a TV;
Fig. 2 is one and uses schematic diagram, illustrate that the public address system in this embodiment is another earphone, and this audio devices is a computer;
Fig. 3 is one and uses schematic diagram, illustrate that the public address system in this embodiment is loudspeaker, and this audio devices is this computer;
Fig. 4 is one and uses schematic diagram, illustrates that receiving element in this embodiment and a communicator carry out Signal transmissions, to converse;
Fig. 5 is a flow chart, when this audio devices wireless transmission sound source signal being described to this public address system in this embodiment, and the delivery unit in this embodiment and the Signal transmissions flow process between this receiving element;
Fig. 6 is a flow chart, and the Signal transmissions flow process between this receiving element in this embodiment and this communicator is described.
Embodiment
Consult Fig. 1, Fig. 5 and Fig. 6, an embodiment of the playback equipment of the utility model tool bluetooth transceiver therein can carry out radio communication with an audio devices 3.This audio devices 3 comprises one for exporting the efferent 31 of a sound source signal.This playback equipment comprises a bluetooth transceiver therein 1 and a public address system 2.
This bluetooth transceiver therein 1 comprises a delivery unit 11 and a receiving element 12.This delivery unit 11 has the signal input part 111 that is detachably arranged at this efferent 31, and a transfer circuit 112 be electrically connected with this signal input part 111.This receiving element 12 has a signal efferent 121, receiving circuit 122 be electrically connected with this signal efferent 121, and an originating circuit 128.This delivery unit 11 and this receiving element 12 are based on identical message transmission specification and a kind of transfer encoding.In the present embodiment, this message transmission specification is Bluetooth stereo message transmission specification (Advance Audio Distribution Profile, A2DP), and this transfer encoding is flow (Fast Stream) form fast.This transfer circuit 112 comprises an analog to digital converter 113 and a signal sends module 114.This receiving circuit 122 comprises a Signal reception module 123, signal gain module 124, and one for regulating and controlling the gain regulation piece 125 of this signal gain module 124.This gain regulation piece 125 has one can press the increment button 126 that input one improves gain command, and one can press the decrement button 127 that input one reduces gain command.This originating circuit 128 comprises a microphone 129, and a module 130 of giving orders or instructions.
This public address system 2 comprises the input part 21 that this signal efferent 121 of a confession is detachably arranged, and the broadcasting unit 22 of this input part 21 of electrical connection.This broadcasting unit 22 has at least one loud speaker 221 for output sound.It is worth mentioning that, because this delivery unit 11 is detachably arranged at this audio devices 3, and this receiving element 12 is detachably arranged at this public address system 2.Therefore, as shown in Figure 2, this audio devices 3 can be also a computer, and this efferent 31 is the audio output hole on this computer, allows this computer have the function of wireless transmission audio frequency immediately.In addition, this public address system 2 also can be general earphone, using an audio jack as this input part 21, and is inserted to this signal efferent 121, to carry out the transmission of signal.In addition, also have another to implement aspect as shown in Figure 3, this public address system 2 be one using a message input hole as the loudspeaker of this input part 21, and this receiving element 12 to be installed on these loudspeaker.Therefore, this audio devices 3 can be the electronic installation that TV, computer or sound equipment etc. include this efferent 31, is not limited with TV cited in Fig. 1 or Fig. 2, computer.This public address system 2 can be the electronic installation that earphone or loudspeaker etc. include this input part 21, is not limited with earphone cited in Fig. 1 or Fig. 3, loudspeaker.Thus, the utility model just can be applied in is permitted eurypalynous public address system 2 and audio devices 3, increase widely use the diversity of device.
Whereby, as shown in Fig. 1 and Fig. 5, this delivery unit 11 is installed on this efferent 31 by this signal input part 111, and combined with this audio devices 3.The efferent 31 of this audio devices 3 exports this sound source signal to this analog to digital converter 113; Then, this analog to digital converter 113, according to this this sound source signal of transfer encoding digitized processing, to obtain the digital signal that is relevant to this result, then exports this signal transmission module 114 to.This signal sends module 114 and receives this digital signal, and transmits a Bluetooth signal according to this message transmission specification.This Signal reception module 123 based on this message transmission specification, and receives this Bluetooth signal according to this transfer encoding, to export the electric wave signal that is relevant to this Bluetooth signal.It is worth mentioning that, this analog to digital converter 113 and this Signal reception module 123, based on this identical transfer encoding, make at this sound source signal of coding, and the time delay that this Bluetooth signal of decoding causes can reduce.In addition, this signal sends module 114 with this Signal reception module 123 based on this identical message transmission specification, and the time delay allowing this Bluetooth signal cause in transmission can reduce.Then, this signal gain module 124 receives this electric wave signal, and adjusts the gain of this electric wave signal amplitude according to the setting of this gain regulation piece 125.In the process, this raising gain command is inputted by pressing this increment button 126, make the gain of this electric wave signal amplitude on the occasion of, or input this reduction gain command by pressing this decrement button 127, the gain of this electric wave signal amplitude is made to be negative value, and adjust the gain of this electric wave signal amplitude, to export this audio signal being relevant to this adjustment result.Finally, receive this audio signal by the loud speaker 221 of this broadcasting unit 22, and export the sound that one is relevant to this audio signal.
In addition, consult Fig. 4 and Fig. 6, receive a reception signals from this microphone 129 by this module 130 of giving orders or instructions, and transmit signal to communicator 4 of giving orders or instructions that is relevant to this reception signals.Meanwhile, the Bluetooth signal from this communicator 4 is received by this receiving circuit 122.Then, this Signal reception module 123 exports an electric wave signal being relevant to this Bluetooth signal to this signal gain module 124, and exports this audio signal to this broadcasting unit 22 by this signal gain module 124.Finally, export by described loud speaker 221 sound that this is relevant to this audio signal.Therefore, this receiving element 12 also can carry out radio communication with a communicator 4 independently, and possesses the call function of general bluetooth earphone.
In sum, the utility model has this identical message transmission specification and this transfer encoding by this delivery unit 11 and this receiving element 12, makes this Bluetooth signal in coding, decoding, and the time delay that transmission causes can reduce.Further, by this receiving element 12 and this originating circuit 128, and radio communication is carried out, to reach call function, so really the purpose of this utility model can be reached with this communicator 4.
As described above, be only embodiment of the present utility model, when can not limit the scope of the utility model enforcement with this, namely all simple equivalences done according to the utility model claims and description change and modify, and all still belong to scope of the present utility model.
Claims (9)
1. the playback equipment of a tool bluetooth transceiver therein, comprise a public address system, and for carrying out radio communication with an audio devices, this public address system comprises an input part, and the broadcasting unit of this input part of electrical connection, this audio devices comprises one for exporting the efferent of a sound source signal; It is characterized in that: the playback equipment of this tool bluetooth transceiver therein also comprises:
A bluetooth transceiver therein, comprise a delivery unit and a receiving element, this delivery unit has the signal input part that is detachably arranged at this efferent, and a transfer circuit be electrically connected with this signal input part, this receiving element has the signal efferent that is detachably arranged at this input part, and a receiving circuit be electrically connected with this signal efferent, this delivery unit and this receiving element are based on identical message transmission specification and a kind of transfer encoding, this transfer circuit receives this sound source signal, and export the Bluetooth signal that is relevant to this sound source signal, this receiving circuit receives this Bluetooth signal, and export the audio signal that is relevant to this Bluetooth signal, this broadcasting unit receives this audio signal, and export the sound that one is relevant to this audio signal.
2. the playback equipment of tool bluetooth transceiver therein according to claim 1, is characterized in that: this message transmission specification is Bluetooth stereo message transmission specification (Advance Audio Distribution Profile, A2DP).
3. the playback equipment of tool bluetooth transceiver therein according to claim 1, is characterized in that: this transfer encoding is for flowing (Fast Stream) form fast.
4. the playback equipment of tool bluetooth transceiver therein according to claim 1, it is characterized in that: this transfer circuit comprises an analog to digital converter and a signal sends module, this analog to digital converter is according to this this sound source signal of transfer encoding digitized processing, to obtain the digital signal that is relevant to this result, this signal sends module and receives this digital signal, and transmits this Bluetooth signal according to this message transmission specification.
5. the playback equipment of tool bluetooth transceiver therein according to claim 1, it is characterized in that: this receiving circuit comprises a Signal reception module, this Signal reception module receives this Bluetooth signal based on this message transmission specification, and exports this audio signal being relevant to this Bluetooth signal according to this transfer encoding.
6. the playback equipment of tool bluetooth transceiver therein according to claim 1, it is characterized in that: this receiving circuit comprises a Signal reception module, a signal gain module, and a gain regulation piece, this Signal reception module is based on this message transmission specification, and receive this Bluetooth signal according to this transfer encoding, to export the electric wave signal that is relevant to this Bluetooth signal, this signal gain module receives this electric wave signal, and adjust the gain of this electric wave signal amplitude according to the setting of this gain regulation piece, to export this audio signal being relevant to this adjustment result.
7. the playback equipment of tool bluetooth transceiver therein according to claim 6, it is characterized in that: this gain regulation piece has one can press the increment button that input one improves gain command, and one can press the decrement button that input one reduces gain command, this raising gain command make the gain of this electric wave signal amplitude on the occasion of, this reduction gain command makes the gain of this electric wave signal amplitude be negative value.
8. the playback equipment of tool bluetooth transceiver therein according to claim 1, is characterized in that: this broadcasting unit has at least one for exporting the loud speaker of this sound.
9. the playback equipment of tool bluetooth transceiver therein according to claim 1, it is characterized in that: this receiving element also has an originating circuit, this originating circuit comprises a microphone, and a module of giving orders or instructions, this module of giving orders or instructions receives a reception signals from this microphone, and wireless transmission one is relevant to the signal of giving orders or instructions of this reception signals.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520409293.9U CN204733348U (en) | 2015-06-15 | 2015-06-15 | The playback equipment of tool bluetooth transceiver therein |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520409293.9U CN204733348U (en) | 2015-06-15 | 2015-06-15 | The playback equipment of tool bluetooth transceiver therein |
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| CN204733348U true CN204733348U (en) | 2015-10-28 |
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| CN201520409293.9U Active CN204733348U (en) | 2015-06-15 | 2015-06-15 | The playback equipment of tool bluetooth transceiver therein |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018188339A1 (en) * | 2017-04-13 | 2018-10-18 | 深圳麦博电器有限公司 | Multi-purpose bluetooth earphone |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018188339A1 (en) * | 2017-04-13 | 2018-10-18 | 深圳麦博电器有限公司 | Multi-purpose bluetooth earphone |
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