CN101437139B - System and method for using Bluetooth earphone in visual telephone - Google Patents
System and method for using Bluetooth earphone in visual telephone Download PDFInfo
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- CN101437139B CN101437139B CN 200710170497 CN200710170497A CN101437139B CN 101437139 B CN101437139 B CN 101437139B CN 200710170497 CN200710170497 CN 200710170497 CN 200710170497 A CN200710170497 A CN 200710170497A CN 101437139 B CN101437139 B CN 101437139B
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Abstract
The invention provides a system and a method for using Bluetooth headset in video telephone. Under the condition that an encoding and decoding module does not provide support for pulse coding modulation (PCM), an audio module in a base band system is used to decode an audio frame acquired by a video telephone protocol stack and a speech frame in a common speech telephone, and a pulse coding modulation (PCM) interface in the base band system is used to realize the connection between the audio module and a Bluetooth module, thereby realizing the normal use of the Bluetooth headset in the video telephone. The system and the method have the advantages that when the encoding and decoding module without the support of the PCM interface is adopted in the video telephone, partial audio frequency in the video telephone is realized by a Bluetooth system, so that the Bluetooth headset can be used when the video telephone is applied.
Description
Technical field
The present invention relates to the digital audio/video field, relate in particular to a kind of system and control method thereof of in visual telephone, using bluetooth earphone.
Background technology
At the initial stage of visual telephone, the baseband system that generally is used for radio communication is all fairly simple, only realizes basic communication function and common speech frame encoding and decoding.The encoding and decoding of the audio/video frames in the video-telephone system generally realize by the mode of plug-in special-purpose coding/decoding module.Coding/decoding module provides the support of multiple audio frequency and video form, has enriched user's multimedia recreation and has experienced.
Along with popularizing gradually of Bluetooth technology, coding/decoding module begins to support with the control of universal asynchronous serial interface (UART) realization to bluetooth module, support A2DP (Advance Audio Distribution Profile) simultaneously, can realize the demand of listening to the music with bluetooth earphone.But still there are a lot of coding/decoding modules that the support of pulse code modulation (pcm) interface is not provided.Because bluetooth module will use pcm interface to realize audio frequency, so just have no idea in visual telephone, to use bluetooth earphone.
Summary of the invention
The technical problem to be solved in the present invention is when adopting not the audio/video encoding/decoding module of supporting with pcm interface, uses bluetooth earphone when being implemented in visual telephone.
To achieve these goals, the present invention has adopted following technical scheme:
Visual telephone bluetooth earphone system comprises: antenna, radio system, baseband system, input equipment, bluetooth module, coding/decoding module, display device, camera, microphone, audio output device, coding/decoding module is realized the encoding and decoding of audio frame and frame of video, comprise wireless communication module in the baseband system, video telephony protocols stack, audio-frequency module, the video telephony protocols stack is realized the multiplexing and demultiplexing and the signaling control of audio/video frames, audio-frequency module is realized the encoding and decoding of speech frame, and bluetooth module is connected by the pulse code modulation (pcm) interface with audio-frequency module, and bluetooth module is connected by universal asynchronous serial interface (UART) with coding/decoding module.Bluetooth module comprises whole bluetooth subsystem.
Use the method for bluetooth earphone to be in the visual telephone, do not provide at coding/decoding module under the situation of pulse code modulation (pcm) support, use the audio-frequency module in the baseband system, with the same decoding of speech frame in the audio frame that obtains in the video telephony protocols stack and the normal speech phone, and by the pulse code modulation (pcm) interface in the baseband system, realize being connected of audio-frequency module and bluetooth module, thereby the normal bluetooth earphone that uses in the realization visual telephone, baseband system is realized the control to bluetooth module by the universal asynchronous serial interface (UART) on the control coding/decoding module.Under the bluetooth earphone not-connected status, the audio frame in the visual telephone is still decoded by coding/decoding module.
The invention has the beneficial effects as follows that when adopting not the coding/decoding module of supporting with pcm interface, the present invention realizes the audio-frequency unit in the visual telephone, thereby can use bluetooth earphone in visual telephone by Bluetooth system at visual telephone.
Description of drawings
Fig. 1 system of the present invention forms schematic diagram
Audio, video data after Fig. 2 bluetooth earphone connects flows to schematic diagram
Audio, video data when Fig. 3 bluetooth earphone does not connect flows to schematic diagram
Embodiment
As shown in Figure 1, system of the present invention forms and comprises: antenna 1, radio system 2, baseband system 3, input equipment 4, bluetooth module 5, coding/decoding module 6, display device 7, camera 8, microphone 9, audio output device 10, coding/decoding module 6 is realized the encoding and decoding of audio frame and frame of video, comprises wireless communication module 31 in the baseband system 3, video telephony protocols stack 32, audio-frequency module 33, video telephony protocols stack 32 are realized the multiplexing and demultiplexing and the signaling control of audio/video frames, and audio-frequency module 33 is realized the encoding and decoding of speech frame, bluetooth module 5 is connected by the pulse code modulation (pcm) interface with audio-frequency module 33, and bluetooth module 5 is connected by universal asynchronous serial interface (UART) with coding/decoding module 6.
Do not provide at coding/decoding module 6 under the situation of pulse code modulation (pcm) support, use the audio-frequency module 33 in the baseband system 3, with the same decoding of speech frame in the audio frame that obtains in the video telephony protocols stack 32 and the normal speech phone, and by the pulse code modulation (pcm) interface in the baseband system 3, realize being connected of audio-frequency module 33 and bluetooth module 5, thereby the normal bluetooth earphone that uses in the realization visual telephone, baseband system 3 is realized the control to bluetooth module 5 by the universal asynchronous serial interface (UART) on the control coding/decoding module 6.
As shown in Figure 2, obtain and after being connected of bluetooth earphone when bluetooth module 5:
In the normal speech phone, the pcm interface by bluetooth module 5 carries out the transmitting-receiving of voice data, realizes compressed and decompressed to audio data frame in the audio-frequency module 33 in baseband system 3.
In visual telephone, the video telephony protocols stack 32 in the baseband system 3 is the audio, video data demultiplexing of receiving, audio frame that obtains separating and frame of video.
The concrete processing procedure of audio frequency is:
The audio-frequency module 33 that isolated audio frame is given in the baseband system 3 decompresses, and obtains the PCM data, issues bluetooth module 5 then.Thereby send to the transmission that bluetooth earphone is realized audio frequency by the bluetooth subsystem in the bluetooth module 5.Simultaneously, the data of bluetooth earphone sampling bluetooth earphone microphone, send bluetooth module 5 then to, bluetooth module 5 becomes the PCM data to the sound that obtain and sends audio-frequency module 33 in the baseband system 3 to, and audio-frequency module 33 is responsible for the PCM data compression is become audio frame required in the video telephony protocols.Simultaneously audio frame being sent to video telephony protocols stack 32 handles.
The concrete processing procedure of video is:
Isolated frame of video is given coding/decoding module 6 and is carried out video decode, the data that solve is delivered to display device 7 show.And simultaneously, the data of acquisition camera 8 are carried out the coding of video, and the video telephony protocols stack 32 that the frame of video behind the coding is sent in the baseband system 3 is handled.
In video telephony protocols stack 32, carry out audio frame behind the coding and frame of video multiplexingly, send out by wireless communication module 31.
At this moment, audio, video data flows to as shown in Figure 2.
As shown in Figure 3, when bluetooth module 5 does not obtain to be connected with bluetooth earphone:
In the normal speech phone, the audio-frequency unit of normal speech phone realizes that by microphone 9 and audio output device 10 audio-frequency module 33 in the base band is finished the encoding and decoding of speech frame.
In visual telephone, video telephony protocols stack 32 demultiplexings obtain after audio frame and the frame of video, audio frame and frame of video are delivered to coding/decoding module 6 simultaneously decodes, utilize audio output device 10 to finish the output of audio frequency, simultaneously decoded video data is sent to display device 7, finish the output of video.Importation: gather the sound that microphone 9 obtains, carry out the audio frame coding, give the video telephony protocols stack 32 in the baseband system 3.Simultaneously, the input data of acquisition camera 8 are carried out the coding of frame of video, and the frame of video behind the coding is sent to video telephony protocols stack 32 in the baseband system 3.
In video telephony protocols stack 32, carry out audio frame behind the coding and frame of video multiplexingly, send out by wireless communication module 31.
At this moment, audio, video data flows to as shown in Figure 3.
Claims (9)
1. use the system of bluetooth earphone in the visual telephone, comprise: antenna (1), radio system (2), baseband system (3), input equipment (4), bluetooth module (5), coding/decoding module (6), display device (7), camera (8), microphone (9), audio output device (10), it is characterized in that, described coding/decoding module (6) is tape pulse coded modulation (PCM) interface not, comprise wireless communication module (31) in the baseband system (3), video telephony protocols stack (32), audio-frequency module (33), video telephony protocols stack (32) is realized the multiplexing and demultiplexing and the signaling control of audio/video frames, bluetooth module (5) is connected by the pulse code modulation (pcm) interface with audio-frequency module (33), bluetooth module (5) is connected by universal asynchronous serial interface (UART) with coding/decoding module (6), when bluetooth module (5) obtained and after being connected of bluetooth earphone, audio-frequency module (33) is realized the encoding and decoding to audio data frame in the normal speech phone and the audio frame in the visual telephone, and coding/decoding module is realized the encoding and decoding of video data.
2. use the method for bluetooth earphone in the visual telephone, it is characterized in that, do not provide at coding/decoding module (6) under the situation of pulse code modulation (pcm) support, use the audio-frequency module (33) in the baseband system (3), with the same decoding of speech frame in the audio frame that obtains in the video telephony protocols stack (32) and the normal speech phone, and by the pulse code modulation (pcm) interface in the baseband system (3), realize being connected of audio-frequency module (33) and bluetooth module (5), thereby the normal bluetooth earphone that uses in the realization visual telephone, baseband system (3) is realized the control to bluetooth module (5) by the universal asynchronous serial interface (UART) on the control coding/decoding module (6).
3. use the method for bluetooth earphone in the visual telephone as claimed in claim 2, it is characterized in that under the bluetooth earphone not-connected status, the audio frame in the visual telephone is still decoded by coding/decoding module (6).
4. use the method for bluetooth earphone in the visual telephone as claimed in claim 2, it is characterized in that, when bluetooth module (5) obtained and after being connected of bluetooth earphone, in the normal speech phone, pcm interface by bluetooth module (5) carries out the transmitting-receiving of voice data, the middle realization of audio-frequency module (33) in baseband system (3) is compressed and decompressed to audio data frame, in visual telephone, video telephony protocols stack (32) in the baseband system (3) is the audio, video data demultiplexing of receiving, audio frame that obtains separating and frame of video.
5. use the method for bluetooth earphone in the visual telephone as claimed in claim 4, it is characterized in that, the concrete processing procedure of the audio frequency in the described visual telephone is, the audio-frequency module (33) that isolated audio frame is given in the baseband system (3) decompresses, obtain the PCM data, issue bluetooth module (5) then, by bluetooth module (5) thus send to the transmission that bluetooth earphone is realized audio frequency, simultaneously, the data of bluetooth earphone sampling bluetooth earphone microphone, send bluetooth module (5) then to, bluetooth module (5) becomes the PCM data to the sound that obtains and sends audio-frequency module (33) in the baseband system (3) to, audio-frequency module (33) is responsible for pulse coded modulation (PCM) data compression is become audio frame required in the video telephony protocols, simultaneously audio frame is sent to video telephony protocols stack (32) and handles.
6. use the method for bluetooth earphone in the visual telephone as claimed in claim 4, it is characterized in that, the concrete processing procedure of the video in the described visual telephone is, isolated frame of video is given coding/decoding module (6) and is carried out video decode, the data that solve are delivered to display device (7) to be shown, the data of while acquisition camera (8), carry out the coding of video, and the video telephony protocols stack (32) that the frame of video behind the coding is sent in the baseband system (3) is handled, in video telephony protocols stack (32), carry out audio frame behind the coding and frame of video multiplexingly, send out by wireless communication module (31).
7. use the method for bluetooth earphone in the visual telephone as claimed in claim 2, it is characterized in that, under the bluetooth earphone not-connected status, in the normal speech phone, the audio-frequency unit of normal speech phone realizes that by microphone (9) and audio output device (10) audio-frequency module (33) in the baseband system (3) is finished the encoding and decoding of speech frame.
8. use the method for bluetooth earphone in the visual telephone as claimed in claim 7, it is characterized in that, in visual telephone, video telephony protocols stack (32) demultiplexing obtains after audio frame and the frame of video, audio frame and frame of video are delivered to coding/decoding module (6) simultaneously decodes, utilize audio output device (10) to finish the output of audio frequency, simultaneously decoded video data is sent to display device (7), finish the output of video.
9. use the method for bluetooth earphone in the visual telephone as claimed in claim 8, it is characterized in that, in the system importation, gather the sound that microphone (9) obtains, carry out the audio frame coding, give the video telephony protocols stack in the baseband system (3) (32), the input data of while acquisition camera (8), carry out the coding of frame of video, and the frame of video behind the coding is sent to video telephony protocols stack (32) in the baseband system (3), in video telephony protocols stack (32), carry out audio frame behind the coding and frame of video multiplexingly, send out by wireless communication module (31).
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200710170497 CN101437139B (en) | 2007-11-16 | 2007-11-16 | System and method for using Bluetooth earphone in visual telephone |
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| CN 200710170497 CN101437139B (en) | 2007-11-16 | 2007-11-16 | System and method for using Bluetooth earphone in visual telephone |
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| CN101437139A CN101437139A (en) | 2009-05-20 |
| CN101437139B true CN101437139B (en) | 2010-12-22 |
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| CN103327364B (en) * | 2013-06-08 | 2016-08-31 | 广东欧珀移动通信有限公司 | A kind of radio transmitting method for audio and video playing and device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1426265A (en) * | 2002-12-31 | 2003-06-25 | 艾威梯软件技术(北京)有限公司 | Equipment and method for adding blue-tooth function on cellular telephone and smart Phone platform |
| CN1574872A (en) * | 2003-06-24 | 2005-02-02 | 乐金电子(中国)研究开发中心有限公司 | Method for selectively transmitting image in video talk of portable terminal |
| CN1691806A (en) * | 2004-04-28 | 2005-11-02 | 上海夏新电子开发有限公司 | Functional module for video mail transmission of handset terminal |
| CN2907139Y (en) * | 2005-11-24 | 2007-05-30 | 庄鸿仁 | Mobile phone with multimedia function |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1426265A (en) * | 2002-12-31 | 2003-06-25 | 艾威梯软件技术(北京)有限公司 | Equipment and method for adding blue-tooth function on cellular telephone and smart Phone platform |
| CN1574872A (en) * | 2003-06-24 | 2005-02-02 | 乐金电子(中国)研究开发中心有限公司 | Method for selectively transmitting image in video talk of portable terminal |
| CN1691806A (en) * | 2004-04-28 | 2005-11-02 | 上海夏新电子开发有限公司 | Functional module for video mail transmission of handset terminal |
| CN2907139Y (en) * | 2005-11-24 | 2007-05-30 | 庄鸿仁 | Mobile phone with multimedia function |
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Granted publication date: 20101222 Termination date: 20191116 |