CN101114846A - Blue tooth wireless multimedia transmission apparatus and system and method - Google Patents
Blue tooth wireless multimedia transmission apparatus and system and method Download PDFInfo
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- CN101114846A CN101114846A CNA2006101090871A CN200610109087A CN101114846A CN 101114846 A CN101114846 A CN 101114846A CN A2006101090871 A CNA2006101090871 A CN A2006101090871A CN 200610109087 A CN200610109087 A CN 200610109087A CN 101114846 A CN101114846 A CN 101114846A
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- tooth wireless
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Abstract
A bluetooth wireless multimedia transmission device is provided, which uses the Advanced Audio Distribution Profile, A2DP to transmit an audio data. The bluetooth wireless multimedia transmission device comprises a bluetooth wireless transmission module which is provided with a bluetooth emitter model, a bluetooth receiver model, as well as a model diverter switch. When the bluetooth emitter model is chosen, the audio data is emitted to the outside; when the bluetooth receiver model is chosen, the audio data is received from the outside; the model diverter switch is used for selectively switching the bluetooth wireless multimedia transmission device into the bluetooth emitter model or the bluetooth receiver model. The invention can enable a multimedia play device to have the function of using A2DP carry on bluetooth wireless transmission, overcome the drawback of the bluetooth wireless multimedia play device of the prior art which can be only transmitted in one way and further improve the use convenience of wireless transmission.
Description
Technical field
The present invention relates to a kind of Radio Transmission Technology, particularly a kind of bluetooth (Bluetooth) radio multimedium transmission technology.
Background technology
Development along with wireless tech, the wireless blue tooth technology is subjected to consumer's favor gradually in recent years, and the wireless blue tooth technology mainly is to be applied to the sound on mobile phone and the computer and the transmission of data at present, in addition, in the wireless blue tooth transmission technology, in order to support the music of left and right acoustic channels, more defined stereosonic standard (Profile), be advanced audio distribution host-host protocol (Advanced Audio DistributionProfile, A2DP), it is different from hand-free receiver host-host protocol (the HandsFree Profile that extensively applies at present on the mobile phone, HFP), can provide the wireless transmission of high-quality music, and possess high wireless technology quality, yet transmitter module and receiver module are stand-alone product in the design of present blue tooth products, the user only can do unidirectional transmission when operation, for example, have the earphone and the player of Bluetooth transmission function, the microphone and the phonographic recorder that perhaps have the Bluetooth transmission function, inconvenient in the use.
Please refer to TaiWan, China patent announcement M288753 number, this patent discloses a kind of bluetooth playing device, comprises a playing device, with first and second source of sound input unit of the mutual acoustic news of playing device data, and a message broadcast unit; This playing device comprises bluetooth module, the external sound source input unit, the source of sound switch, the message processor, the unit is exported/gone into to message, control unit and power subsystem, bluetooth module carries out the transmission of message data by Bluetooth wireless transmission technology and the above-mentioned first source of sound input unit, the external sound source input unit is that the message transmission is connected with the second source of sound input unit, control the input instruction of unit by this source of sound switch basis, switch one of them message data input path of two source of sound input units, and utilize message to export/go into the unit transmission and play by the message broadcast unit for carrying out.
Though above-mentioned patent provides a kind of sound that can automatically switch to mobile communication when receiving incoming telephone signal to use, and after the mobile communication pattern finishes, automatically switch again and playback the function of putting the music on, but this kind switching (for example need be switched employed communication standard simultaneously, advanced audio distribution host-host protocol (A2DP), audio-visual Long-distance Control standard (AVRCP), earphone transmission specification (HSP) and hand-free receiver transmission specification (HFP) etc.), comparatively complicated in the configuration of switching software, and above-mentioned bluetooth playing device also can't use advanced audio distribution host-host protocol (A2DP) to carry out voice data and transmit, and its external sound source input is to do transmission in wired mode, and is also not convenient in the use.
Therefore, how to provide a kind of blue tooth wireless multimedia transmission apparatus and system and method thereof, reach the purpose of the ease of use that promotes wireless transmission, become one of researcher's problem to be solved with easy switching software arrangements.
Summary of the invention
Main purpose of the present invention is to provide a kind of blue tooth wireless multimedia transmission apparatus and system and method thereof, with bluetooth transmitters program and Bluetooth Receiver integration procedure, judge the operating mode that the present desire of user is used by general input and output (GPIO) signal of detection hardware circuit again, to promote the ease of use of wireless transmission.
For reaching above-mentioned purpose, the present invention discloses a kind of blue tooth wireless multimedia transmission apparatus, it adopts the A2DP agreement to carry out audio data transmission, include the Bluetooth wireless transmission module, have a bluetooth transmitters pattern and a Bluetooth Receiver pattern, when it is set at the bluetooth transmitters pattern, transmit voice data to the outside, when it is set at the Bluetooth Receiver pattern, from the outside voice data that receives; And mode selector switch, in order to optionally blue tooth wireless multimedia transmission apparatus is switched to bluetooth transmitters pattern or Bluetooth Receiver pattern.
The present invention also discloses a kind of blue tooth wireless multimedia transmission system, it adopts the A2DP agreement to carry out audio data transmission, include first blue tooth wireless multimedia transmission apparatus, mode selector switch with the bluetooth transmitters pattern of setting and a Bluetooth Receiver pattern, when it is set at the bluetooth transmitters pattern, transmit voice data to the outside, when it is set at the Bluetooth Receiver pattern, from the outside voice data that receives; And second blue tooth wireless multimedia transmission apparatus, carry out communication with first blue tooth wireless multimedia transmission apparatus.
The present invention also discloses a kind of blue tooth wireless multimedia transmission system, it adopts the A2DP agreement to carry out audio data transmission, include: first blue tooth wireless multimedia transmission apparatus, first mode selector switch with the bluetooth transmitters pattern of setting and a Bluetooth Receiver pattern, when it is set at the bluetooth transmitters pattern, transmit voice data to the outside, when it is set at the Bluetooth Receiver pattern, from the outside voice data that receives; And second blue tooth wireless multimedia transmission apparatus, carry out communication with first blue tooth wireless multimedia transmission apparatus, has second mode selector switch of setting bluetooth transmitters pattern and Bluetooth Receiver pattern, when second blue tooth wireless multimedia transmission apparatus is set at the bluetooth transmitters pattern, send voice data to first blue tooth wireless multimedia transmission apparatus, when second blue tooth wireless multimedia transmission apparatus is set at the Bluetooth Receiver pattern, receive the voice data that first blue tooth wireless multimedia transmission apparatus sends.
In addition, the present invention also discloses a kind of blue tooth wireless multimedia transmission method, it provides the blue tooth wireless multimedia transmission apparatus that carries out transfer voice with the A2DP agreement, it optionally switches to a bluetooth transmitters pattern or a Bluetooth Receiver pattern, and produce a mode switching signal, at first, detect this mode switching signal; When mode switching signal is first state, enable the signal transportation protocol of A2DP agreement, in order to blue tooth wireless multimedia transmission apparatus is set at the bluetooth transmitters pattern; And when mode switching signal was second state, the signal of enabling the A2DP agreement received agreement, in order to blue tooth wireless multimedia transmission apparatus is set at the Bluetooth Receiver pattern.
See through aforementioned blue tooth wireless multimedia transmission apparatus and system and method thereof, multimedia playing apparatus is had adopt the A2DP agreement to carry out the function of Bluetooth wireless transmission, overcome blue tooth wireless multimedia in the prior art and play the shortcoming that dress only possesses one-way transmission, and then promote the ease of use of wireless transmission.
Description of drawings
Fig. 1 is the block diagram of blue tooth wireless multimedia transmission apparatus of the present invention;
Fig. 2 is the block diagram of blue tooth wireless multimedia transmission system of the present invention;
Fig. 3 is the flow chart of steps of the blue tooth wireless multimedia transmission method of first embodiment of the invention; And
Fig. 4 is the flow chart of steps of the blue tooth wireless multimedia transmission method of second embodiment of the invention.
Embodiment
Please refer to Fig. 1, be the block diagram of blue tooth wireless multimedia transmission apparatus 10 of the present invention, it adopts the A2DP agreement to carry out audio data transmission, includes Bluetooth wireless transmission module 11 and mode selector switch 12.
Bluetooth wireless transmission module 11, have bluetooth transmitters pattern 11a and Bluetooth Receiver pattern 11b, when it is set at bluetooth transmitters pattern 11a, in order to transmit voice data to the outside, when it is set at Bluetooth Receiver pattern 11b, receive voice data in order to outside certainly, and Bluetooth wireless transmission module 11 includes 2.4Ghz antenna circuit, bluetooth connection controller (1ink controller), bluetooth connection management (link manager) and host terminal interface (host terminal interface) etc. in concrete enforcement.
Please refer to Fig. 2, block diagram for blue tooth wireless multimedia transmission system of the present invention, it adopts the A2DP agreement to carry out audio data transmission, includes: first blue tooth wireless multimedia transmission apparatus 20, first multimedia player 40, first sound source output device 41, second blue tooth wireless multimedia transmission apparatus 30, second multimedia player 50 and second sound source output device 51.
First blue tooth wireless multimedia transmission apparatus 20, the first Bluetooth wireless transmission module 21 with bluetooth transmitters pattern 21a and Bluetooth Receiver pattern 21b, and first mode selector switch 22 of setting bluetooth transmitters pattern 21a and Bluetooth Receiver pattern 21b, when it is set at bluetooth transmitters pattern 21a, in order to transmit voice data to the outside, when it is set at Bluetooth Receiver pattern 21b, receive voice data in order to outside certainly, and the first Bluetooth wireless transmission module 21 is including the 2.4Ghz antenna circuit in concrete enforcement, bluetooth connects controller, bluetooth connection management and host terminal interface etc.
First sound source output device 41, be connected with first multimedia player 40, in order to exporting the sound effect of the voice data correspondence that first blue tooth wireless multimedia transmission apparatus 20 receives, and first sound source output device 41 can be loudspeaker or earphone etc. in concrete enforcement.
Second sound source output device 51, be connected with second multimedia player 50, in order to exporting the sound effect of the voice data correspondence that second blue tooth wireless multimedia transmission apparatus 30 receives, and second sound source output device 51 can be loudspeaker or earphone etc. in concrete enforcement.
Second blue tooth wireless multimedia transmission apparatus 30, carry out communication with first blue tooth wireless multimedia transmission apparatus 20, comprise the second Bluetooth wireless transmission module 31 with bluetooth transmitters mode 3 1a and Bluetooth Receiver mode 3 1b, and second mode selector switch 32 of setting bluetooth transmitters mode 3 1a and Bluetooth Receiver mode 3 1b, when second blue tooth wireless multimedia transmission apparatus 30 is set at bluetooth transmitters mode 3 1a, in order to send voice data to first blue tooth wireless multimedia transmission apparatus 20, when second blue tooth wireless multimedia transmission apparatus 30 is set at Bluetooth Receiver mode 3 1b, in order to receiving the voice data that first blue tooth wireless multimedia transmission apparatus 20 sends, and the second Bluetooth wireless transmission module 31 is including the 2.4Ghz antenna circuit in concrete enforcement, bluetooth connects controller, bluetooth connection management and host terminal interface etc.
In addition, disclosed blue tooth wireless multimedia transmission apparatus also can carry out communication with the general Bluetooth wireless transmission device that does not have mode switch function, is not repeated in this description at this.
Please refer to Fig. 3, flow chart of steps for the blue tooth wireless multimedia transmission method of first embodiment of the invention, provide and adopt the A2DP agreement to carry out the blue tooth wireless multimedia transmission apparatus of transfer voice, it optionally switches to bluetooth transmitters pattern or Bluetooth Receiver pattern, and produce a mode switching signal, at first, detect this mode switching signal (step 100), in the present embodiment can be by checking general input and output (the General Purpose Input Output of blue tooth wireless multimedia transmission apparatus, GPIO) whether signal changes, whether to confirm the trigger mode switching signal.
When detecting mode switching signal and confirm as first state (for example high level or low level), then enable the signal transportation protocol of A2DP agreement, in order to blue tooth wireless multimedia transmission apparatus is set at bluetooth transmitters pattern (step 101); When mode switching signal was second state (for example low level or high level), the signal of then enabling the A2DP agreement received agreement, in order to blue tooth wireless multimedia transmission apparatus is set at Bluetooth Receiver pattern (step 102).
Please refer to Fig. 4, flow chart of steps for the blue tooth wireless multimedia transmission method of second embodiment of the invention, provide the A2DP agreement to carry out the blue tooth wireless multimedia transmission apparatus of transfer voice, it optionally switches to bluetooth transmitters pattern or Bluetooth Receiver pattern, at first, obtain a mode switch order (step 200); Enable the signal transportation protocol (step 201) of A2DP agreement, in the present embodiment can be in the program of application layer, with sharable subfunction formula (for example, a2dpopencfm ()) merges into a sub-functional expression, and shared variable and structure (structure), to reduce the length of program code, promptly enable the signal transportation protocol of A2DP agreement.
Then, blue tooth wireless multimedia transmission apparatus is set at the bluetooth transmitters pattern, in order to (for example to transmit voice data to the outside, adopt time frequencyband coding (Subband Coding, SBC), the voice data of MPEG1, MPEG2, AAC or ATRAC compression coding and decoding form) (step 202), in the present embodiment can be by the mode switch variable (for example, Global) is changed into
*1
*Or
*0
*, to set the operating mode of blue tooth wireless multimedia transmission apparatus; Obtain mode switch order (step 203) once more; The signal of enabling the A2DP agreement receives agreement (step 204); At last, blue tooth wireless multimedia transmission apparatus is set at the Bluetooth Receiver pattern, to receive voice data (step 205).
In addition, step 200 and the step 201 mentioned in the second embodiment of the invention also can change the signal of enabling the A2DP agreement into and receive agreement, and corresponding modification of its subsequent step work get final product, and is not repeated in this description at this.
Claims (12)
1. blue tooth wireless multimedia transmission apparatus, it adopts advanced audio configuration host-host protocol (Advanced Audio Distribution Profile, the A2DP agreement) carry out audio data transmission, it is characterized in that, this blue tooth wireless multimedia transmission apparatus includes:
One Bluetooth wireless transmission module has a bluetooth transmitters pattern and a Bluetooth Receiver pattern, when being set at this bluetooth transmitters pattern, sends voice data to the outside, when being set at this Bluetooth Receiver pattern, from the outside voice data that receives; And
One mode selector switch is in order to optionally to switch to this blue tooth wireless multimedia transmission apparatus this bluetooth transmitters pattern or Bluetooth Receiver pattern.
2. blue tooth wireless multimedia transmission apparatus as claimed in claim 1, it is characterized in that: when this mode selector switch switches, also produce a mode switching signal, in order to being this bluetooth transmitters pattern or Bluetooth Receiver pattern with this Bluetooth wireless transmission module settings.
3. blue tooth wireless multimedia transmission apparatus as claimed in claim 1 is characterized in that: this mode selector switch is a push-button switch.
4. blue tooth wireless multimedia transmission apparatus as claimed in claim 1 is characterized in that: this mode selector switch is a thumb-acting switch.
5. blue tooth wireless multimedia transmission system, it adopts the A2DP agreement to carry out audio data transmission, this blue tooth wireless multimedia transmission system comprises one first blue tooth wireless multimedia transmission apparatus and one second blue tooth wireless multimedia transmission apparatus at least, it is characterized in that:
This first blue tooth wireless multimedia transmission apparatus has one first Bluetooth wireless transmission module of a bluetooth transmitters pattern and a Bluetooth Receiver pattern and the mode selector switch of setting this bluetooth transmitters pattern and Bluetooth Receiver pattern; When it is set at the bluetooth transmitters pattern, send voice data to the outside, when it is set at the Bluetooth Receiver pattern, from the outside voice data that receives; And
This second blue tooth wireless multimedia transmission apparatus carries out communication with this first blue tooth wireless multimedia transmission apparatus.
6. blue tooth wireless multimedia transmission system as claimed in claim 5, it is characterized in that: when this mode selector switch switches, also produce a mode switching signal, in order to being this bluetooth transmitters pattern or Bluetooth Receiver pattern with this first Bluetooth wireless transmission module settings.
7. blue tooth wireless multimedia transmission system as claimed in claim 5 is characterized in that: this mode selector switch is a push-button switch.
8. blue tooth wireless multimedia transmission system as claimed in claim 5 is characterized in that: this mode selector switch is a thumb-acting switch.
9. blue tooth wireless multimedia transmission system, it adopts the A2DP agreement to carry out audio data transmission, this blue tooth wireless multimedia transmission system comprises one first blue tooth wireless multimedia transmission apparatus and one second blue tooth wireless multimedia transmission apparatus at least, it is characterized in that:
This first blue tooth wireless multimedia transmission apparatus, one first Bluetooth wireless transmission module with a bluetooth transmitters pattern and a Bluetooth Receiver pattern, and one first mode selector switch of setting this bluetooth transmitters pattern and Bluetooth Receiver pattern, when it is set at this bluetooth transmitters pattern, send voice data to the outside, when it is set at this Bluetooth Receiver pattern, from the outside voice data that receives; And
This second blue tooth wireless multimedia transmission apparatus, carry out communication with this first blue tooth wireless multimedia transmission apparatus, one second Bluetooth wireless transmission module with bluetooth transmitters pattern and Bluetooth Receiver pattern, and one second mode selector switch of setting this bluetooth transmitters pattern and Bluetooth Receiver pattern, when this second blue tooth wireless multimedia transmission apparatus is set at this bluetooth transmitters pattern, send voice data to this first blue tooth wireless multimedia transmission apparatus, when this second blue tooth wireless multimedia transmission apparatus is set at this Bluetooth Receiver pattern, be received from the voice data that this first blue tooth wireless multimedia transmission apparatus sends.
10. blue tooth wireless multimedia transmission system as claimed in claim 9 is characterized in that, this first blue tooth wireless multimedia transmission apparatus also includes:
One first multimedia player, coding/decoding is handled this voice data; And
One first sound source output device is exported the sound effect of this voice data correspondence that this first blue tooth wireless multimedia transmission apparatus receives.
11. blue tooth wireless multimedia transmission system as claimed in claim 9 is characterized in that, this second blue tooth wireless multimedia transmission apparatus also includes:
One second multimedia player, coding/decoding is handled this voice data; And
One second sound source output device is exported the sound effect of this voice data correspondence that this second blue tooth wireless multimedia transmission apparatus receives.
12. blue tooth wireless multimedia transmission method, provide and adopt the A2DP agreement to carry out a blue tooth wireless multimedia transmission apparatus of transfer voice, it is characterized in that, this blue tooth wireless multimedia device optionally switches to a bluetooth transmitters pattern or a Bluetooth Receiver pattern, and produce a mode switching signal, this blue tooth wireless multimedia transmission method includes:
Detect this mode switching signal;
When this mode switching signal is one first state, enable a signal transportation protocol of this A2DP agreement, in order to this blue tooth wireless multimedia transmission apparatus is set at this bluetooth transmitters pattern; And
When this mode switching signal was one second state, a signal of enabling this A2DP agreement received agreement, in order to this blue tooth wireless multimedia transmission apparatus is set at this Bluetooth Receiver pattern.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNA2006101090871A CN101114846A (en) | 2006-07-28 | 2006-07-28 | Blue tooth wireless multimedia transmission apparatus and system and method |
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| CNA2006101090871A CN101114846A (en) | 2006-07-28 | 2006-07-28 | Blue tooth wireless multimedia transmission apparatus and system and method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103200263A (en) * | 2013-04-02 | 2013-07-10 | 上海山景集成电路股份有限公司 | Intelligent terminal, Bluetooth audio playing device and interactive method and interactive system for intelligent terminal and Bluetooth audio playing device |
| CN101604987B (en) * | 2008-05-30 | 2015-08-19 | 奥迪康有限公司 | For the low latency, high quality link of audio transmission |
| CN105120499A (en) * | 2015-08-21 | 2015-12-02 | 深圳Tcl数字技术有限公司 | Bluetooth master-slave mode automatic switching method and system |
| CN105630597A (en) * | 2015-12-25 | 2016-06-01 | 珠海全志科技股份有限公司 | Android-based A2DP mode dynamical switching method, system and apparatus |
| CN106464699A (en) * | 2015-04-09 | 2017-02-22 | Nec平台株式会社 | Wireless communication device, near-field wireless communication device, wireless communication method, and near-field wireless communication method |
| CN106708466A (en) * | 2016-12-29 | 2017-05-24 | 深圳Tcl数字技术有限公司 | Audio playing control method and device |
| CN106788612A (en) * | 2016-12-15 | 2017-05-31 | 青岛海信电器股份有限公司 | A kind of bluetooth mode method of adjustment and bluetooth equipment based on A2DP agreements |
| CN109525882A (en) * | 2018-11-30 | 2019-03-26 | 中国联合网络通信集团有限公司 | A kind of synchronous broadcast method, bridging device and sink device |
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- 2006-07-28 CN CNA2006101090871A patent/CN101114846A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101604987B (en) * | 2008-05-30 | 2015-08-19 | 奥迪康有限公司 | For the low latency, high quality link of audio transmission |
| CN103200263B (en) * | 2013-04-02 | 2016-06-01 | 上海山景集成电路股份有限公司 | Intelligent terminal and Bluetooth audio frequency playback equipment and exchange method, system |
| CN103200263A (en) * | 2013-04-02 | 2013-07-10 | 上海山景集成电路股份有限公司 | Intelligent terminal, Bluetooth audio playing device and interactive method and interactive system for intelligent terminal and Bluetooth audio playing device |
| US10015652B2 (en) | 2015-04-09 | 2018-07-03 | Nec Platforms, Ltd. | Near-field wireless communication equipment, and near-field wireless communication method |
| CN106464699A (en) * | 2015-04-09 | 2017-02-22 | Nec平台株式会社 | Wireless communication device, near-field wireless communication device, wireless communication method, and near-field wireless communication method |
| CN106464699B (en) * | 2015-04-09 | 2018-06-19 | Nec平台株式会社 | Wireless telecom equipment, near field communication equipment, wireless communications method and near field communication method |
| CN105120499A (en) * | 2015-08-21 | 2015-12-02 | 深圳Tcl数字技术有限公司 | Bluetooth master-slave mode automatic switching method and system |
| CN105120499B (en) * | 2015-08-21 | 2019-01-01 | 深圳Tcl数字技术有限公司 | The method and system that bluetooth master slave mode automatically switches |
| CN105630597A (en) * | 2015-12-25 | 2016-06-01 | 珠海全志科技股份有限公司 | Android-based A2DP mode dynamical switching method, system and apparatus |
| CN105630597B (en) * | 2015-12-25 | 2019-01-18 | 珠海全志科技股份有限公司 | A kind of A2DP mode dynamic switching method, system and device based on Android |
| CN106788612A (en) * | 2016-12-15 | 2017-05-31 | 青岛海信电器股份有限公司 | A kind of bluetooth mode method of adjustment and bluetooth equipment based on A2DP agreements |
| CN106788612B (en) * | 2016-12-15 | 2021-06-04 | 海信视像科技股份有限公司 | Bluetooth mode adjusting method based on A2DP protocol and Bluetooth device |
| CN106708466A (en) * | 2016-12-29 | 2017-05-24 | 深圳Tcl数字技术有限公司 | Audio playing control method and device |
| CN109525882A (en) * | 2018-11-30 | 2019-03-26 | 中国联合网络通信集团有限公司 | A kind of synchronous broadcast method, bridging device and sink device |
| CN109525882B (en) * | 2018-11-30 | 2021-08-31 | 中国联合网络通信集团有限公司 | Synchronous playing method, bridging equipment and sink equipment |
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