CN103825635B - A kind of method utilizing bluetooth earphone to share audio frequency - Google Patents
A kind of method utilizing bluetooth earphone to share audio frequency Download PDFInfo
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- CN103825635B CN103825635B CN201410086436.7A CN201410086436A CN103825635B CN 103825635 B CN103825635 B CN 103825635B CN 201410086436 A CN201410086436 A CN 201410086436A CN 103825635 B CN103825635 B CN 103825635B
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Abstract
The present invention relates to electronic communication field, particularly relate to a kind of method utilizing bluetooth earphone to share audio frequency, it comprises the following steps: the first bluetooth earphone to be matched with the audio output apparatus of bluetooth enable by bluetooth module and is connected by (1); (2) the first bluetooth earphone is matched with the second bluetooth earphone be connected; (3) by the audio signal transmission on audio frequency apparatus on the first bluetooth earphone, then the first bluetooth earphone again by audio signal transmission on the second bluetooth earphone, it is lower and can meet remote audio frequency and share demand that this method additionally need not increase module, cost.
Description
Technical field
The present invention relates to electronic communication field, particularly relate to a kind of method utilizing bluetooth earphone to share audio frequency.
Background technology
Bluetooth technology is the technology of a kind of low cost, low-power and short-distance wireless communication, can be widely used on earphone.User can exempt irritating electric wire by bluetooth earphone and impede, and easily converses in every way comfortablely.
But the bluetooth earphone of prior art generally can only be connected with audio output apparatus bluetooth one to one, such as a mobile phone can only connect a bluetooth earphone.Be limited to the reasons such as Bluetooth protocol, systematic function and power consumption, the connection realizing one-to-many has suitable difficulty; Even if realize the connection of a bluetooth equipment and multiple earphone, the bluetooth earphone quantity that can connect also has limitation.
Along with popularizing of various mobile intelligent terminal (as mobile phone, panel computer etc.), wireless headset also receives an acclaim all the more and uses.Sometimes, people can carry with mobile phone or other mobile intelligent terminal, by bus, walking along the street or rest time listen to all kinds of music or learning materials, such as, some users from networks or other approach get audio-frequency information or the learning materials of more modish fashion, out of doors or under PE, when thinking of and other user jointly appreciate, or multiple user thinks mutually to share same audio-frequency information.
As China national Patent Office " a kind of bluetooth earphone and utilize this bluetooth earphone to share the method for audio frequency " disclosed in the 13 days November in 2013, its publication number is CN103391118, this patent needs to arrange the audio frequency that two bluetooth modules could realize between bluetooth earphone and shares in a bluetooth earphone, so just need the production cost increasing bluetooth earphone, make production cost higher; And this bluetooth earphone patent structure only increases a bluetooth module, and the bluetooth earphone of other modules all with common is on the market the same, and bluetooth earphone on the market, because do not have audio frequency sharing function, and in order to power consumption consideration, so the radio-frequency (RF) power amplification cell power that bluetooth earphone on the market adopts is amplified less, namely the distance of about 10 meters can only generally be transmitted, so the bluetooth earphone in this patent also can only transmit the distance of about 10 meters, the demand that remote audio frequency is shared can not be met like this.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of module, cost of need not additionally increasing lower and can meet the bluetooth earphone that utilizes that remote audio frequency shares demand and share the method for audio frequency.
The technical solution adopted in the present invention is: a kind of method utilizing bluetooth earphone to share audio frequency, and at least two bluetooth earphones, be respectively the first bluetooth earphone and the second bluetooth earphone, it comprises the following steps:
(1), the first bluetooth earphone to be matched with the audio output apparatus of bluetooth enable by bluetooth module be connected;
(2), the first bluetooth earphone is matched with the second bluetooth earphone be connected;
(3), the first bluetooth earphone obtains radiofrequency signal by after the baseband processing unit of the audio signal received from audio output apparatus in the bluetooth module of the first bluetooth earphone and radio frequency unit process, then by the radio-frequency (RF) power amplification unit in the RF front-end module of the first bluetooth earphone this radiofrequency signal is amplified to can transmit 100 meters of distances power after drive the Bluetooth antenna of the first bluetooth earphone to launch again; The radiofrequency signal that the Bluetooth antenna that second bluetooth earphone receives the first bluetooth earphone by the Bluetooth antenna of the second bluetooth earphone is launched, digital signal is obtained again by after the baseband processing unit of the radiofrequency signal received in the bluetooth module of the second bluetooth earphone and radio frequency unit process, described digital signal obtains simulated audio signal by the audio treatment unit process in the bluetooth module of the second bluetooth earphone again, finally drives sound horn;
The first bluetooth earphone and the second bluetooth earphone being matched in described step (2) is connected concrete steps and comprises:
A, first bluetooth earphone enters searched state, baseband processing unit in the bluetooth module of now the first bluetooth earphone produces matched order, this matched order is modulated to the radiofrequency signal of 2.4GHz by the radio frequency unit in the bluetooth module of the first bluetooth earphone, this radiofrequency signal outputs to the radio-frequency (RF) switch of the first bluetooth earphone, the radio-frequency (RF) switch that now bluetooth module of the first bluetooth earphone controls the first bluetooth earphone is transformed into emission state, and then by the radio-frequency (RF) power amplification unit in the RF front-end module of the first bluetooth earphone, radiofrequency signal is amplified to the Bluetooth antenna of power rear drive first bluetooth earphone that can transmit 100 meters of distances, radiofrequency signal after amplifying is converted to electromagenetic wave radiation to space by the Bluetooth antenna of the first bluetooth earphone afterwards,
B, second bluetooth earphone enters search condition, now the bluetooth module of the second bluetooth earphone can drive the electromagnetic wave in the neighbouring space of Bluetooth antenna search of the second bluetooth earphone, then the electromagnetic wave that the Bluetooth antenna that the Bluetooth antenna of the second bluetooth earphone can receive the first bluetooth earphone in steps A emits and the electromagnetic wave this received is converted to radiofrequency signal, again by the baseband processing unit in the bluetooth module of the second bluetooth earphone and radio frequency unit by radiofrequency signal demodulation out, and then second the bluetooth module of bluetooth earphone recognize the first bluetooth earphone in searched state, afterwards, baseband processing unit in the bluetooth module of the second bluetooth earphone sends pairing request, described pairing request is by the radio frequency unit process in the bluetooth module of the second bluetooth earphone, then the pairing request after process is transmitted into space by the Bluetooth antenna of the second bluetooth earphone by the bluetooth module of the second bluetooth earphone,
C, the Bluetooth antenna of the first bluetooth earphone receives the pairing request that the Bluetooth antenna in step B in the second bluetooth earphone emits, then the pairing request received is converted into the radiofrequency signal of 2.4GHz by the baseband processing unit in the bluetooth module of the first bluetooth earphone and radio frequency unit, the radiofrequency signal be converted is transferred to the radio-frequency (RF) switch of the first bluetooth earphone again after the low noise amplification unit in the RF front-end module of the first bluetooth earphone amplifies, the radio-frequency (RF) switch that now bluetooth module of the first bluetooth earphone controls the first bluetooth earphone is transformed into accepting state, radiofrequency signal after amplifying is transferred to the bluetooth module of the first bluetooth earphone again by the radio-frequency (RF) switch of the first bluetooth earphone, the pairing request that the second bluetooth earphone sends is obtained after eventually passing baseband processing unit in the bluetooth module of the first bluetooth earphone and radio frequency unit process, afterwards, the bluetooth module of the first bluetooth earphone is sent by Bluetooth antenna and confirms pairing signal,
The confirmation pairing signal that the Bluetooth antenna that the Bluetooth antenna of D, the second bluetooth earphone receives the first bluetooth earphone in step C launches, the confirmation pairing signal that reception is come is issued the bluetooth module of the second bluetooth earphone by the Bluetooth antenna of the second bluetooth earphone more after treatment, now, the first bluetooth earphone and the second bluetooth earphone complete to match and are connected.
Adopt above method compared with prior art, the present invention has the following advantages: can make to carry out coupling between two bluetooth earphones by this method under the prerequisite additionally not increasing module and connect, and then by audio frequency apparatus, audio signal is sent to the first bluetooth earphone, by the first bluetooth earphone, audio signal is sent to the second bluetooth earphone again, achieve audio frequency to share, cost is lower; And because radiofrequency signal can be amplified to the power that can transmit 100 meters of distances by the radio-frequency (RF) power amplification unit in the RF front-end module of bluetooth earphone, so just can realize remote audio frequency and have shared.
Accompanying drawing explanation
Fig. 1 is a kind of flow chart utilizing bluetooth earphone to share the method for audio frequency of the present invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is described further, but the present invention is not limited only to following embodiment.
Bluetooth earphone of the present invention comprises bluetooth module, RF front-end module, radio-frequency (RF) switch, Bluetooth antenna and loudspeaker, described RF front-end module, radio-frequency (RF) switch and loudspeaker are all electrically connected with bluetooth module, described radio-frequency (RF) switch and Bluetooth antenna are all electrically connected with RF front-end module
Described bluetooth module: comprise baseband processing unit, radio frequency unit and audio treatment unit, controls for realizing Bluetooth transmission protocol, audio frequency process and man-machine interface;
Described RF front-end module: comprise radio-frequency (RF) power amplification unit and low noise amplification unit, for realize transmit in the power amplification of Bluetooth transmission part and the low noise amplification of receiving unit, and the radio-frequency (RF) power amplification unit in described RF front-end module can by the power amplification of radiofrequency signal to the ability with transmission 100 meters of distances, the model of RF front-end module of the present invention is RDAT212, but adopts other models that can reach this function to be also fine;
Described radio-frequency (RF) switch: for realizing the Transmit enable of Bluetooth RF;
Described Bluetooth antenna: for realizing spatial emission and the reception of Bluetooth RF signal, what the present invention adopted is PIFI antenna.
Utilize bluetooth earphone to share a method for audio frequency, at least two bluetooth earphones, be respectively the first bluetooth earphone and the second bluetooth earphone, it comprises the following steps:
(1), the first bluetooth earphone to be matched with the audio output apparatus of bluetooth enable by bluetooth module be connected; This step is because the bluetooth earphone of prior art all needs to carry out, so be common practise, concrete steps just do not expand in detail;
(2), the first bluetooth earphone is matched with the second bluetooth earphone be connected;
(3), the first bluetooth earphone obtains radiofrequency signal by after the baseband processing unit of the audio signal received from audio output apparatus in the bluetooth module of the first bluetooth earphone and radio frequency unit process, then by the radio-frequency (RF) power amplification unit in the RF front-end module of the first bluetooth earphone this radiofrequency signal is amplified to can transmit 100 meters of distances power after drive the Bluetooth antenna of the first bluetooth earphone to launch again; The radiofrequency signal that the Bluetooth antenna that second bluetooth earphone receives the first bluetooth earphone by the Bluetooth antenna of the second bluetooth earphone is launched, digital signal is obtained again by after the baseband processing unit of the radiofrequency signal received in the bluetooth module of the second bluetooth earphone and radio frequency unit process, described digital signal obtains simulated audio signal by the audio treatment unit process in the bluetooth module of the second bluetooth earphone again, finally drives sound horn;
The first bluetooth earphone and the second bluetooth earphone being matched in described step (2) is connected concrete steps and comprises:
A, first bluetooth earphone enters searched state, baseband processing unit in the bluetooth module of now the first bluetooth earphone produces matched order, this matched order is modulated to the radiofrequency signal of 2.4GHz by the radio frequency unit in the bluetooth module of the first bluetooth earphone, this radiofrequency signal outputs to the radio-frequency (RF) switch of the first bluetooth earphone, the radio-frequency (RF) switch that now bluetooth module of the first bluetooth earphone controls the first bluetooth earphone is transformed into emission state, and then by the radio-frequency (RF) power amplification unit in the RF front-end module of the first bluetooth earphone, radiofrequency signal is amplified to the Bluetooth antenna of power rear drive first bluetooth earphone that can transmit 100 meters of distances, radiofrequency signal after amplifying is converted to electromagenetic wave radiation to space by the Bluetooth antenna of the first bluetooth earphone afterwards,
B, second bluetooth earphone enters search condition, now the bluetooth module of the second bluetooth earphone can drive the electromagnetic wave in the neighbouring space of Bluetooth antenna search of the second bluetooth earphone, then the electromagnetic wave that the Bluetooth antenna that the Bluetooth antenna of the second bluetooth earphone can receive the first bluetooth earphone in steps A emits and the electromagnetic wave this received is converted to radiofrequency signal, again by the baseband processing unit in the bluetooth module of the second bluetooth earphone and radio frequency unit by radiofrequency signal demodulation out, and then second the bluetooth module of bluetooth earphone recognize the first bluetooth earphone in searched state, afterwards, baseband processing unit in the bluetooth module of the second bluetooth earphone sends pairing request, described pairing request is by the radio frequency unit process in the bluetooth module of the second bluetooth earphone, then the pairing request after process is transmitted into space by the Bluetooth antenna of the second bluetooth earphone by the bluetooth module of the second bluetooth earphone,
C, the Bluetooth antenna of the first bluetooth earphone receives the pairing request that the Bluetooth antenna in step B in the second bluetooth earphone emits, then the pairing request received is converted into the radiofrequency signal of 2.4GHz by the baseband processing unit in the bluetooth module of the first bluetooth earphone and radio frequency unit, the radiofrequency signal be converted is transferred to the radio-frequency (RF) switch of the first bluetooth earphone again after the low noise amplification unit in the RF front-end module of the first bluetooth earphone amplifies, the radio-frequency (RF) switch that now bluetooth module of the first bluetooth earphone controls the first bluetooth earphone is transformed into accepting state, radiofrequency signal after amplifying is transferred to the bluetooth module of the first bluetooth earphone again by the radio-frequency (RF) switch of the first bluetooth earphone, the pairing request that the second bluetooth earphone sends is obtained after eventually passing baseband processing unit in the bluetooth module of the first bluetooth earphone and radio frequency unit process, afterwards, the bluetooth module of the first bluetooth earphone is sent by Bluetooth antenna and confirms pairing signal,
The confirmation pairing signal that the Bluetooth antenna that the Bluetooth antenna of D, the second bluetooth earphone receives the first bluetooth earphone in step C launches, the confirmation pairing signal that reception is come is issued the bluetooth module of the second bluetooth earphone by the Bluetooth antenna of the second bluetooth earphone more after treatment, now, the first bluetooth earphone and the second bluetooth earphone complete to match and are connected.
The bluetooth earphone adopted in the present invention also comprises multiple button, respectively: switching on and shutting down button, volume adds key, volume down key, Bluetooth multifunctional key, first method of operation of the present invention is mated with audio frequency apparatus by the first bluetooth earphone to be connected, it mainly comprises the following steps: the first bluetooth earphone length is pressed Bluetooth multifunctional key and entered pairing state, now open the Bluetooth function of audio frequency apparatus, search Bluetooth earphone equipment, connect after searching the first bluetooth earphone, and the first bluetooth earphone after pairing first can remember the Bluetooth address of audio frequency apparatus, can from the upper audio frequency apparatus that is dynamically connected during later use the first bluetooth earphone of start again, without repeat search,
Then the first bluetooth earphone is matched with the second bluetooth earphone and be connected, it comprises the following steps: long volume of pressing the first bluetooth earphone adds key, first bluetooth earphone enters searched state, what this duration pressed the second bluetooth earphone subtracts key, second bluetooth earphone enters search condition, and after the second bluetooth earphone searches the first bluetooth earphone, the second bluetooth earphone initiatively initiates to connect, then the first bluetooth earphone confirms, makes the first bluetooth earphone and the second bluetooth earphone successful matching;
Finally start to carry out audio frequency to share, the audio signal of the first bluetooth earphone is sent to from audio frequency apparatus, first bluetooth earphone can drive the audio treatment unit of its inside to drive the loudspeaker of the first bluetooth earphone to play back and will receive audio signal simultaneously and be sent on the second bluetooth earphone, second bluetooth earphone drives the loudspeaker of the second bluetooth earphone to play back by inner audio treatment unit, so just reach the object that audio frequency is shared, and the first bluetooth earphone and the second bluetooth earphone can exchange.
Claims (1)
1. utilize bluetooth earphone to share a method for audio frequency, at least two bluetooth earphones, be respectively the first bluetooth earphone and the second bluetooth earphone, it is characterized in that, it comprises the following steps:
(1), the first bluetooth earphone to be matched with the audio output apparatus of bluetooth enable by bluetooth module be connected;
(2), the first bluetooth earphone is matched with the second bluetooth earphone be connected;
(3), the first bluetooth earphone obtains radiofrequency signal by after the baseband processing unit of the audio signal received from audio output apparatus in the bluetooth module of the first bluetooth earphone and radio frequency unit process, then by the radio-frequency (RF) power amplification unit in the RF front-end module of the first bluetooth earphone this radiofrequency signal is amplified to can transmit 100 meters of distances power after drive the Bluetooth antenna of the first bluetooth earphone to launch again; The radiofrequency signal that the Bluetooth antenna that second bluetooth earphone receives the first bluetooth earphone by the Bluetooth antenna of the second bluetooth earphone is launched, digital signal is obtained again by after the baseband processing unit of the radiofrequency signal received in the bluetooth module of the second bluetooth earphone and radio frequency unit process, described digital signal obtains simulated audio signal by the audio treatment unit process in the bluetooth module of the second bluetooth earphone again, finally drives sound horn;
The first bluetooth earphone and the second bluetooth earphone being matched in described step (2) is connected concrete steps and comprises:
A, first bluetooth earphone enters searched state, baseband processing unit in the bluetooth module of now the first bluetooth earphone produces matched order, this matched order is modulated to the radiofrequency signal of 2.4GHz by the radio frequency unit in the bluetooth module of the first bluetooth earphone, this radiofrequency signal outputs to the radio-frequency (RF) switch of the first bluetooth earphone, the radio-frequency (RF) switch that now bluetooth module of the first bluetooth earphone controls the first bluetooth earphone is transformed into emission state, and then by the radio-frequency (RF) power amplification unit in the RF front-end module of the first bluetooth earphone, radiofrequency signal is amplified to the Bluetooth antenna of power rear drive first bluetooth earphone that can transmit 100 meters of distances, radiofrequency signal after amplifying is converted to electromagenetic wave radiation to space by the Bluetooth antenna of the first bluetooth earphone afterwards,
B, second bluetooth earphone enters search condition, now the bluetooth module of the second bluetooth earphone can drive the electromagnetic wave in the neighbouring space of Bluetooth antenna search of the second bluetooth earphone, then the electromagnetic wave that the Bluetooth antenna that the Bluetooth antenna of the second bluetooth earphone can receive the first bluetooth earphone in steps A emits and the electromagnetic wave this received is converted to radiofrequency signal, again by the baseband processing unit in the bluetooth module of the second bluetooth earphone and radio frequency unit by radiofrequency signal demodulation out, and then second the bluetooth module of bluetooth earphone recognize the first bluetooth earphone in searched state, afterwards, baseband processing unit in the bluetooth module of the second bluetooth earphone sends pairing request, described pairing request is by the radio frequency unit process in the bluetooth module of the second bluetooth earphone, then the pairing request after process is transmitted into space by the Bluetooth antenna of the second bluetooth earphone by the bluetooth module of the second bluetooth earphone,
C, the Bluetooth antenna of the first bluetooth earphone receives the pairing request that the Bluetooth antenna in step B in the second bluetooth earphone emits, then the pairing request received is converted into the radiofrequency signal of 2.4GHz by the baseband processing unit in the bluetooth module of the first bluetooth earphone and radio frequency unit, the radiofrequency signal be converted is transferred to the radio-frequency (RF) switch of the first bluetooth earphone again after the low noise amplification unit in the RF front-end module of the first bluetooth earphone amplifies, the radio-frequency (RF) switch that now bluetooth module of the first bluetooth earphone controls the first bluetooth earphone is transformed into accepting state, radiofrequency signal after amplifying is transferred to the bluetooth module of the first bluetooth earphone again by the radio-frequency (RF) switch of the first bluetooth earphone, the pairing request that the second bluetooth earphone sends is obtained after eventually passing baseband processing unit in the bluetooth module of the first bluetooth earphone and radio frequency unit process, afterwards, the bluetooth module of the first bluetooth earphone is sent by Bluetooth antenna and confirms pairing signal,
The confirmation pairing signal that the Bluetooth antenna that the Bluetooth antenna of D, the second bluetooth earphone receives the first bluetooth earphone in step C launches, the confirmation pairing signal that reception is come is issued the bluetooth module of the second bluetooth earphone by the Bluetooth antenna of the second bluetooth earphone more after treatment, now, the first bluetooth earphone and the second bluetooth earphone complete to match and are connected.
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| DK3370388T3 (en) * | 2017-03-01 | 2021-06-21 | Epos Group As | COMMUNICATION SYSTEM INCLUDING LISTENING |
| CN106954111B (en) * | 2017-03-24 | 2020-01-14 | 西安蜂语信息科技有限公司 | Bluetooth headset, Bluetooth headset system, audio content sending method and audio content receiving method |
| CN106937198A (en) * | 2017-03-24 | 2017-07-07 | 西安蜂语信息科技有限公司 | Bluetooth earphone, Bluetooth earphone system, audio content transmission method |
| CN206775676U (en) * | 2017-03-30 | 2017-12-19 | 东莞市库珀电子有限公司 | A kind of bluetooth earphone and its share system |
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| CN108810741B (en) * | 2018-06-14 | 2021-01-29 | 歌尔科技有限公司 | Method and device for connecting double wireless earphones and wireless earphones |
| CN109347581B (en) | 2018-09-30 | 2020-11-27 | Oppo广东移动通信有限公司 | Bluetooth headset connection method and device, electronic equipment and storage medium |
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| CN111447600B (en) * | 2020-03-31 | 2023-04-25 | 歌尔科技有限公司 | Audio sharing method of wireless earphone, terminal equipment and storage medium |
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