CN103427883A - Bluetooth audio adapter and audio player - Google Patents
Bluetooth audio adapter and audio player Download PDFInfo
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- CN103427883A CN103427883A CN2013103429781A CN201310342978A CN103427883A CN 103427883 A CN103427883 A CN 103427883A CN 2013103429781 A CN2013103429781 A CN 2013103429781A CN 201310342978 A CN201310342978 A CN 201310342978A CN 103427883 A CN103427883 A CN 103427883A
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Abstract
The invention provides a bluetooth audio adapter and an audio player. The bluetooth audio adapter comprises a bluetooth base band circuit and a main controller. The main controller comprises an HCI (host controller interface), a bluetooth protocol processing unit, a DSP (digital signal processor), an audio controller and a USB (universal serial bus) controller which are connected sequentially. The HCI is connected with an HCI of the bluetooth base band circuit. The USB controller is connected with a USB interface of a music player through the USB interface. With the bluetooth audio adapter and the audio player, limitation of traditional music players with USB control circuits is overcome, the traditional music players can be used as the bluetooth music players, communication between the traditional music players with the USB control circuits and other bluetooth wireless devices is realized, and market application value is remarkable.
Description
Technical field
The present invention relates to bluetooth and Audiotechnica field, particularly relate to a kind of Bluetooth audio frequency adapter and a kind of audio-frequence player device.
Background technology
Bluetooth (Bluetooth) is by the join together short distance radio communication standards of exploitation of mobile operator and mobile computing company, is used for design to set up a kind of small-sized, economic, short-range wireless link between pocket computer, mobile phone and other mobile device.The frequency range of regulation and stipulation work is public ISM band, and peak data rate can reach 1Mbps.
Follow the development of wireless technology and the raising of living standards of the people, some all has been equipped with blue-tooth device above consumer-elcetronics devices at present.Take the Bluetooth music player as example, the Bluetooth music player is to add function of Bluetooth communication on the basis of common music player, make the music player can be by Bluetooth protocol and other bluetooth peripheral communication, thereby realize that wireless music is play and the functions such as wireless communication.
At present, music player has spread to huge numbers of families.The basic functions such as traditional music player reads the SD card substantially, read USB flash disk (USB interface), USB Audio, HID, AUX and radio reception, but these traditional music players are not integrated Bluetooth function mostly, thereby just can not with extraneous bluetooth equipment communication, want that the music player that traditional music player is become with Bluetooth function becomes difficult to achieve.
Summary of the invention
Based on this, the invention provides a kind of Bluetooth audio frequency adapter and audio-frequence player device, can make traditional music player become the Bluetooth music player.
For achieving the above object, the present invention adopts following technical scheme:
A kind of Bluetooth audio frequency adapter comprises: bluetooth baseband circuit, master controller; Described master controller comprises HCI interface, Bluetooth protocol processing unit, DSP, Audio Controller, the USB controller connected successively; Described HCI interface is connected with the HCI interface of bluetooth baseband circuit, and described USB controller is connected with the USB interface of music player by USB interface.
A kind of audio-frequence player device, comprise above-mentioned Bluetooth audio frequency adapter.
By above scheme, can be found out, a kind of Bluetooth audio frequency adapter of the present invention and audio-frequence player device, receive by the bluetooth baseband circuit data that bluetooth host equipment sends, and be transferred to master controller by the HCI interface, complete Bluetooth protocol processing and audio frequency and process in master controller, then by USB interface, send to voice data music player to carry out the audio frequency broadcasting.The present invention has overcome the limitation of traditional music player with the USB control circuit, traditional music player can be become to the Bluetooth music player, realized that tradition, with the music player of USB control circuit and the communication of other bluetooth wireless devices, has great market using value.
The accompanying drawing explanation
Fig. 1 is for being used Bluetooth audio frequency adapter to expand the frame diagram of traditional music player Bluetooth function;
The structural representation that Fig. 2 is a kind of Bluetooth audio frequency adapter in the embodiment of the present invention;
Wherein:
1 is bluetooth host equipment, and it supports bluetooth A2DP and hands-free phone agreement; 2 is Bluetooth audio frequency adapter; 3 is music player;
21 is the bluetooth baseband circuit; 211 is antenna; 212 is bluetooth PHY;
22 is master controller; 221 is the HCI interface; 222 is the Bluetooth protocol processing unit; 223 is DSP; 224 is Audio Controller; 225 is the USB controller; 226 is pickup unit; 227 is pcm interface; 228 is audio output unit;
23 is the audio frequency input unit; 24 is audio output interface; 25 for showing output unit; 26 is push-button unit; 27 is USB interface.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, technical scheme of the present invention is further described.
Shown in Figure 2, a kind of Bluetooth audio frequency adapter 2 provided by the invention comprises: bluetooth baseband circuit 21, master controller 22; Described master controller 22 comprises the HCI(Host Controller Interface connected successively, HCI) interface 221, Bluetooth protocol processing unit 222, DSP(Digital Signal Processing, digital signal processor) 223, Audio Controller 224, USB(Universal Serial BUS, USB) controller 225; Described HCI interface 221 is connected with the HCI interface of bluetooth baseband circuit 21, and described USB controller 225 is connected with the USB interface of music player by USB interface 27.
As an embodiment preferably, as shown in Figure 2, described bluetooth baseband circuit can comprise: antenna 211, bluetooth PHY212, described antenna is connected with the radio frequency mouth of described bluetooth PHY by radio frequency line.Bluetooth PHY is the bluetooth physical equipment, and it can transmit Bluetooth signal, but does not have the Bluetooth protocol decoding function.
The data of the bluetooth HCI layer that bluetooth PHY can send over by antenna reception bluetooth host equipment 1, and it is transmitted to master controller by the HCI interface.And in master controller, the data that the Bluetooth protocol processing unit sends the HCI interface are carried out the Bluetooth protocol processing, isolate bluetooth A2DP data, and the A2DP data are delivered in DSP decoded, synchronous and become the processing such as sampling, then the voice data obtained after finishing dealing with is issued to Audio Controller, USB controller, send to the music player 3 with USB interface by USB interface again, music player with USB interface plays back voice data, and common like this music player can become the Bluetooth music player.
Bluetooth audio frequency adapter of the present invention can also the supporting telephone function.As an embodiment preferably, described master controller can also comprise pickup unit 226, the PCM(Pulse-code modulation connected successively, pulse code modulation) interface 227, described pcm interface is connected with described DSP, and described pcm interface also is connected with the pcm interface of described bluetooth PHY.
Further, as shown in Figure 2, described Bluetooth audio frequency adapter can also comprise: audio frequency input unit 23, described audio frequency input unit is connected with described pickup unit.
The audio frequency input unit can obtain audio input data, as the audio frequency input source of making a phone call; Pickup unit gathers voice data, and sends to bluetooth PHY by gathering the data of returning by pcm interface.
Bluetooth PHY is connected with master control by pcm interface, and so bluetooth PHY just can receive and send the bluetooth telephone data, and when making a phone call, voice data passes to DSP by pcm interface, through the change sampling with synchronously, gives Audio Controller and processes.
As an embodiment preferably, described master controller can also comprise: audio output unit 228, described audio output unit is connected with described DSP.
In addition, as an embodiment preferably, as shown in Figure 2, described Bluetooth audio frequency adapter can also comprise: audio output interface 24, described audio output interface is connected with described audio output unit.Concrete, described audio output interface can be analogue audio frequency delivery outlet or FM transmitting chip etc.
In the embodiment of the present invention, require the USB interface of music player need to support the function of USB AUDIO.Concrete, when Bluetooth audio frequency adapter is inserted into audio player, Bluetooth audio frequency adapter USB controller is set to host mode, and whether remove to enumerate music player has USB AUDIO equipment class and HID equipment class; If music player has USB AUDIO equipment class, set up USB AUDIO voice-grade channel, now Audio Controller will be controlled voice data and be exported from USB controller, USB interface; If there is no USB AUDIO, now USB interface only is to provide the function of Bluetooth audio frequency adapter power supply, Audio Controller will be controlled voice data and be exported (certainly by audio output unit, audio output interface, when USB AUDIO voice-grade channel is arranged, voice data also can be exported from audio output interface).Be in the embodiment of the present invention, USB controller and USB interface are the preferred option as audio frequency output; Audio output unit and audio output interface are as the alternative of audio frequency output.
In the embodiment of the present invention, if music player is supported HID(Human Interface Device, human interface device), can on music player, realize bluetooth Play Control function.Concrete, the USB interface of Bluetooth audio frequency adapter is main frame, can identify the HID order that music player sends out, after the USB controller is received the HID order, send to Audio Controller, by Audio Controller, the HID order is converted to the data that can identify and carries out the Bluetooth protocol processing for the Bluetooth protocol processing unit, then by the HCI interface, send to bluetooth PHY.
As an embodiment preferably, described Bluetooth audio frequency adapter also comprises: show output unit 25, described demonstration output unit is connected with described Audio Controller.Show that output unit can show the operating state of Bluetooth audio frequency adapter.
In addition, the present invention can also be by playing by the key control bluetooth.As an embodiment preferably, described Bluetooth audio frequency adapter can also comprise: push-button unit 26, described push-button unit is connected with described Audio Controller.Push-button unit can gather key information, send to Audio Controller, convert discernible data to by Audio Controller and carry out the Bluetooth protocol conversion for the Bluetooth protocol processing unit, then the data after processing are sent to the HCI unit, thereby realize the Play Control of bluetooth.And the push-button unit in the embodiment of the present invention can be controlled the tranmitting frequency of FM transmitting chip.
Finally, the present invention also provides a kind of audio-frequence player device, and it comprises aforesaid Bluetooth audio frequency adapter.
By above scheme, can find out, a kind of Bluetooth audio frequency adapter of the present invention and audio-frequence player device, receive by the bluetooth baseband circuit data that bluetooth host equipment sends, and be transferred to master controller by the HCI interface, complete Bluetooth protocol processing and audio frequency and process in master controller, then by USB interface, send to voice data music player to carry out the audio frequency broadcasting.The present invention has overcome the limitation of traditional music player with the USB control circuit, traditional music player can be become to the Bluetooth music player, realized that tradition, with the music player of USB control circuit and the communication of other bluetooth wireless devices, has great market using value.
The above embodiment has only expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a Bluetooth audio frequency adapter, is characterized in that, comprising: bluetooth baseband circuit, master controller; Described master controller comprises HCI interface, Bluetooth protocol processing unit, DSP, Audio Controller, the USB controller connected successively; Described HCI interface is connected with the HCI interface of bluetooth baseband circuit, and described USB controller is connected with the USB interface of music player by USB interface.
2. Bluetooth audio frequency adapter according to claim 1, is characterized in that, described bluetooth baseband circuit comprises: antenna, bluetooth PHY, described antenna is connected with the radio frequency mouth of described bluetooth PHY by radio frequency line.
3. Bluetooth audio frequency adapter according to claim 2, it is characterized in that, described master controller also comprises pickup unit, the pcm interface connected successively, and described pcm interface is connected with described DSP, and described pcm interface also is connected with the pcm interface of described bluetooth PHY.
4. Bluetooth audio frequency adapter according to claim 3, is characterized in that, described Bluetooth audio frequency adapter also comprises: the audio frequency input unit, described audio frequency input unit is connected with described pickup unit.
5. Bluetooth audio frequency adapter according to claim 1, is characterized in that, described master controller also comprises: audio output unit, described audio output unit is connected with described DSP.
6. Bluetooth audio frequency adapter according to claim 5, is characterized in that, described Bluetooth audio frequency adapter also comprises: audio output interface, described audio output interface is connected with described audio output unit.
7. Bluetooth audio frequency adapter according to claim 6, is characterized in that, described audio output interface is analogue audio frequency delivery outlet or FM transmitting chip.
8. according to the described Bluetooth audio frequency adapter of claim 1-7 any one, it is characterized in that, described Bluetooth audio frequency adapter also comprises: show output unit, described demonstration output unit is connected with described Audio Controller.
9. according to the described Bluetooth audio frequency adapter of claim 1-7 any one, it is characterized in that, described Bluetooth audio frequency adapter also comprises: push-button unit, described push-button unit is connected with described Audio Controller.
10. an audio-frequence player device, is characterized in that, comprises as the described Bluetooth audio frequency adapter of claim 1-9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103429781A CN103427883A (en) | 2013-08-07 | 2013-08-07 | Bluetooth audio adapter and audio player |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103429781A CN103427883A (en) | 2013-08-07 | 2013-08-07 | Bluetooth audio adapter and audio player |
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| CN103427883A true CN103427883A (en) | 2013-12-04 |
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| CN2013103429781A Pending CN103427883A (en) | 2013-08-07 | 2013-08-07 | Bluetooth audio adapter and audio player |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104284025A (en) * | 2014-09-30 | 2015-01-14 | 厦门美图移动科技有限公司 | Mobile terminal Bluetooth accessory and automatic pairing method thereof |
| CN104200809B (en) * | 2014-07-18 | 2017-05-24 | 詹承洋 | Wireless music optimizing device |
| CN108184193A (en) * | 2017-12-28 | 2018-06-19 | 西安Tcl软件开发有限公司 | Control method for playing back, bluetooth equipment and the computer storage media of bluetooth playback terminal |
| CN109286424A (en) * | 2018-11-22 | 2019-01-29 | 深圳市蓝蜂时代实业有限公司 | A kind of Bluetooth adapter and implementation method of changeable input pattern |
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| CN1897056A (en) * | 2005-07-12 | 2007-01-17 | 艾威梯软件技术(北京)有限公司 | Flow-medium player method and apparatus for wireless remote-controlling system |
| CN201323575Y (en) * | 2008-08-05 | 2009-10-07 | 迈世亚（北京）科技有限公司 | Bluetooth headset |
| CN203368475U (en) * | 2013-08-07 | 2013-12-25 | 珠海市杰理科技有限公司 | Bluetooth audio adapter and audio playback device |
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2013
- 2013-08-07 CN CN2013103429781A patent/CN103427883A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2788458Y (en) * | 2005-06-06 | 2006-06-14 | 金纯� | Blue Tooth MP3 player with the function of Blue Tooth USB adapter |
| CN1897056A (en) * | 2005-07-12 | 2007-01-17 | 艾威梯软件技术(北京)有限公司 | Flow-medium player method and apparatus for wireless remote-controlling system |
| CN201323575Y (en) * | 2008-08-05 | 2009-10-07 | 迈世亚（北京）科技有限公司 | Bluetooth headset |
| CN203368475U (en) * | 2013-08-07 | 2013-12-25 | 珠海市杰理科技有限公司 | Bluetooth audio adapter and audio playback device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104200809B (en) * | 2014-07-18 | 2017-05-24 | 詹承洋 | Wireless music optimizing device |
| CN104284025A (en) * | 2014-09-30 | 2015-01-14 | 厦门美图移动科技有限公司 | Mobile terminal Bluetooth accessory and automatic pairing method thereof |
| CN108184193A (en) * | 2017-12-28 | 2018-06-19 | 西安Tcl软件开发有限公司 | Control method for playing back, bluetooth equipment and the computer storage media of bluetooth playback terminal |
| CN108184193B (en) * | 2017-12-28 | 2021-03-30 | 西安Tcl软件开发有限公司 | Play control method of Bluetooth play terminal, Bluetooth device and computer storage medium |
| CN109286424A (en) * | 2018-11-22 | 2019-01-29 | 深圳市蓝蜂时代实业有限公司 | A kind of Bluetooth adapter and implementation method of changeable input pattern |
| CN109286424B (en) * | 2018-11-22 | 2024-02-02 | 深圳市蓝蜂时代实业有限公司 | Bluetooth adapter capable of switching input modes and implementation method |
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Address after: 519085 Guangdong city of Zhuhai province Jida West Road No. 107 Building 9 Building (1-4) Applicant after: Zhuhai jelee Polytron Technologies Inc Address before: 519020 Guangdong city of Zhuhai province Jida West Road No. 107 Building 9 Building (1-4) Applicant before: Zhuhai Jieli Technology Co., Ltd. |
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Application publication date: 20131204 |
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