CN1924836B - Audio play device with infrared auxiliary transmission function and data transmission method thereof - Google Patents
Audio play device with infrared auxiliary transmission function and data transmission method thereof Download PDFInfo
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- CN1924836B CN1924836B CN2005100370033A CN200510037003A CN1924836B CN 1924836 B CN1924836 B CN 1924836B CN 2005100370033 A CN2005100370033 A CN 2005100370033A CN 200510037003 A CN200510037003 A CN 200510037003A CN 1924836 B CN1924836 B CN 1924836B
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Abstract
This invention provides one infrared data transmission mode to realize data transmission audio play device, which comprises host connector, controller, memory medium, MP3 decoding chip, A/D conversion module and infrared data transmission module, wherein, the device controls the communication between MP3 decoding chip and infrared data transmission module through controller without host connector to host and operation system to realize two or more audio play devices data transmission.
Description
[technical field]
The present invention relates to a kind of audio playing apparatus and data transmission method thereof, relate in particular to a kind of audio playing apparatus and transmission method thereof with infrared data transmission function.
[background technology]
The high speed development of infotech is accompanied by the propagation of computer network at present, and the music of MP3 data layout is popularized in network world just rapidly, because corresponding audio playing apparatus has the advantages such as volume is little, portable, easy to operate, therefore uses more and more extensive.
Existing audio playing apparatus generally comprises host connector (not shown), controller 20, storage medium (not shown), MP3 decoding chip 21, D/A switch module 22 as shown in Figure 3.When downloading song, this audio playing apparatus is communicated by letter with the operating system of main frame 1 by host connector, and the song that will download is deposited in the storage medium with audio digital signal by controller 20; During played songs, MP3 decoding chip 21 is the audio reception digital signal from controller 20, and it is decoded according to the MP3 data layout, then through the digital data transmission of decoding to D/A switch module 22, play after being converted into simulating signal by D/A switch module 22.
Yet, above-mentioned audio playing apparatus has following shortcoming at least: this audio playing apparatus must be communicated by letter with the operating system of main frame by host connector and be carried out data transmission, if need between two or more audio playing apparatus, carry out data transmission, then must just can finish by host connector and main frame, therefore its Offhost connector, main frame and operating system directly realize the data transmission between two or more audio playing apparatus, use inconvenient.
[summary of the invention]
The object of the present invention is to provide a kind of audio playing apparatus that adopts data transmission between the infrared data transmission pattern realization equipment.
The invention provides a kind of infrared data transmission pattern that adopts and realize that data pass the audio playing apparatus of number, it comprises host connector, controller, storage medium, MP3 decoding chip, D/A switch module and infrared data transmission module; Wherein, host connector is connected with main frame for the exchanges data of the operating system that realizes audio playing apparatus and main frame, the MP3 decoding chip is used for according to the audio digital signals of MP3 data layout decoding by the controller transmission, the D/A switch module is used for and will be converted to the simulating signal that can realize that audio frequency is play by the decoded digital signal of MP3 decoding chip, and the infrared data transmission module is used for realizing the data transmission of separating system between two or more audio playing apparatus that possess the infrared data transmission function.When downloading song, this audio playing apparatus links to each other with main frame by host connector, and the song that will download is deposited in the storage medium with voice data by controller; During played songs, the MP3 decoding chip is the audio reception data from controller, and it is decoded according to the MP3 data layout, then through the digital data transmission of decoding to the D/A switch module, play after being converted into simulating signal by the D/A switch module.Wherein, this audio playing apparatus carries out data transmission by communicating by letter between controller control MP3 decoding chip and the infrared data transmission module, therefore need not can realize data transmission between direct two or more audio playing apparatus by host connector connection main frame and operating system.
Compared with prior art, advantage of the present invention is: this audio playing apparatus is provided with the infrared data transmission module, control by logical program, need not to connect main frame and operating system by host connector and can directly realize data transmission between two or more audio playing apparatus, usage comparison is convenient.
[description of drawings]
Fig. 1 is the functional block diagram of audio playing apparatus of the present invention.
Fig. 2 is the high-level schematic functional block diagram of data transmission between the audio playing apparatus of the present invention.
Fig. 3 is the functional block diagram of existing audio playing apparatus.
[embodiment]
Audio playing apparatus of the present invention as shown in Figure 1, it comprises host connector (not shown), controller 30, storage medium (not shown), MP3 decoding chip 31, D/A switch module 32 and infrared data transmission module 33.
Wherein, infrared data transmission module 33 comprises logic interfacing module 331, infrared coding module 332, infrared transmission module 333, infrared decoding module 334 and infrared receiving module 335; Wherein, logic interfacing module 331 is used for realizing communicating by letter between infrared data transmission module 33 and the MP3 decoding chip 31, infrared coding module 332 is used for according to the infrared coding pattern for process MP3 decoding chip 31 decoded encoding digital signals, infrared transmission module 333 is used for emission through the digital signal of infrared coding 332, infrared receiving module 335 is used for receiving the digital signal through infrared coding, and infrared decoding module 334 is used for decoding for the digital signal through infrared coding according to the infrared decoding pattern.
Logic interfacing module in the present embodiment adopts UART one asynchronous serial transceiver module.
During use, generally this audio playing apparatus is carried out the operation of following three aspects:
When 1, downloading song, this audio playing apparatus links to each other by the operating system of host connector with main frame 1, and the audio file that will download is deposited in the storage medium with the form of voice data by controller 30;
2, during played songs, MP3 decoding chip 31 is the audio reception data from controller 30, and it is decoded according to the MP3 data layout, then through the digital data transmission of decoding to D/A switch module 32, play after being converted into simulating signal by D/A switch module 32;
3, between two or more audio playing apparatus that possess the infrared data transmission function during the transmission of data, as shown in Figure 2, the zone of action that above-mentioned audio playing apparatus A and B are entered each other is (general apart between 0--2 rice, angle is in 30 degree cone angles), the controller 30 steering logic interface modules 331 that wherein send the above-mentioned audio playing apparatus A of data make Infrared Transmission module (not indicating) and MP3 decoding chip 31 that communication occur, to reach infrared coding module 332 through MP3 decoding chip 31 decoded digital signals, the data that infrared transmission module 333 receives through infrared coding, and it is spread out of to audio playing apparatus B emission, transmit operation is finished; The above-mentioned audio playing apparatus B that is used for receive data receives the data through infrared coding of being transmitted by transmit leg audio playing apparatus A by infrared receiving module 333 ', by infrared decoding module 334 ' these data are decoded according to the infrared decoding mode, and realize and the communicating by letter of MP3 decoding chip 31 ' by controller 30 ', receive to operate and finish; Vice versa, and can realize the data transmission between a plurality of audio playing apparatus by that analogy.
Wherein, this audio playing apparatus A and the B controller 30 and 30 ' by separately realize separately MP3 decoding chip 31,31 ' with separately infrared data transmission module (indicating) between communication carry out data transmission, therefore need not host connector by separately and connect main frame 1 and operating system and can realize that the immediate data between two or more audio playing apparatus transmits.
At present, the infrared data transmission pattern that is widely used mainly contains: serial infrared transmission (SIR-Serial Infrared), median infrared transmission (MIR--Middle Infrared), high speed infrared transmission (FIR-Fast Infrareda) and hypervelocity Infrared Transmission (VFIR-Very FastInfrared).
Wherein, the data transmission rate of serial infrared transmission-SIR and median infrared transmission-MIR can reach 115200bps and 1.15Mbps respectively, coded system adopts the anti-phase return-to-zero modulation pattern of RZI-, and its data packet format is: two start bit+address bit+data subject+check bit+position of rests.
The data transmission rate of high speed infrared transmission-FIR can reach 4Mbps, and coded system adopts 4PPM-impulse phase modulating mode, and its data packet format comprises: guiding position+start bit+data subject+stop element.
The data transmission rate of hypervelocity Infrared Transmission-VFIR can reach 16Mbps, and coded system adopts HHH (1,13) pattern, and its data packet format comprises: guiding position+start bit+data subject+check bit+filler+position of rest+spare bits.
More than be the specific embodiment of the present invention, in practice, the logic interfacing module can also adopt other logic interfacing modules except UART to realize communicating by letter between MP3 decoding chips and the infrared data transmission module; Above-mentioned infrared coding module and infrared decoding module can adopt the integration module that integrates infrared coding/infrared decoding functional module; Above-mentioned infrared transmission module and infrared receiving module can adopt the integration module that integrates the transmitting/receiving functional module.
Above-mentionedly utilize control method that infrared ray carries out data transmission except can being applied to above-mentioned audio playing apparatus, can also be applied to other mancarried devices, such as digital camera, counter, game machine, mobile phone, notebook computer, portable printer etc., above-mentioned mancarried device adopts embodiment of the present invention to utilize the infrared data transmission module to carry out data transmission, can reach equally to need not the implementation result that the attended operation system can realize the immediate data transmission between two or more mancarried devices.
Claims (11)
1. audio playing apparatus, it comprise controller, storage medium and
Host connector is connected for the exchanges data that realizes audio playing apparatus and operating system with main frame;
The MP3 decoding chip is used for the audio digital signals that is transmitted by controller according to the decoding of MP3 data layout;
The D/A switch module is used for and will be converted to the simulating signal that can realize that audio frequency is play by the decoded digital signal of MP3 decoding chip;
It is characterized in that, this audio playing apparatus also is provided with the infrared data transmission module, for the data transmission that realizes between two or more audio playing apparatus that possess the infrared data transmission function, described infrared data transmission module comprises: the logic interfacing module, be used for to realize communicating by letter between infrared data transmission module and the MP3 decoding chip; The infrared coding module is used for and will encodes according to the infrared coding pattern through the decoded digital signal of MP3 decoding chip; Infrared transmission module is used for emission through the digital signal of infrared coding; Infrared receiving module is used for receiving the digital signal through infrared coding; And the infrared decoding module, be used for and will decode according to the infrared decoding pattern through the digital signal behind the infrared coding, and
Wherein, described audio playing apparatus is configured to, controller steering logic interface module will be sent to the infrared coding module through the decoded digital signal of MP3 decoding chip, the infrared coding module is encoded according to the infrared coding pattern through the decoded digital signal of MP3 decoding chip for above-mentioned, and outwards launch through the digital signal behind the infrared coding above-mentioned by infrared transmission module; Or
Receive through the digital signal behind the infrared coding by infrared receiving module, the infrared decoding module is decoded according to the infrared decoding pattern for above-mentioned digital signal through infrared coding, and controller steering logic interface module will be sent to through the digital signal behind the infrared decoding MP3 decoding chip.
2. audio playing apparatus as claimed in claim 1 is characterized in that: above-mentioned infrared data transmission module adopts is that infrared coding module and infrared decoding module are in the integrated infrared coding/decoder module of one.
3. audio playing apparatus as claimed in claim 1 is characterized in that: what above-mentioned infrared data transmission module adopted is the integrated infrared emission receiving code module that integrates infrared transmission module and infrared receiving module.
4. audio playing apparatus as claimed in claim 1 is characterized in that: what above-mentioned logic interfacing module adopted is UART asynchronous serial transceiver module.
5. the data transmission method of an audio playing apparatus, this audio playing apparatus comprises host connector, controller, storage medium, MP3 decoding chip, D/A switch module and infrared data transmission module, this data transmission method comprises the following steps:
A. by the data communication between controller control MP3 decoding chip and the infrared data transmission module;
B. will be sent to the infrared coding module through the decoded digital signal of MP3 decoding chip by controller steering logic interface module, the infrared coding module is encoded according to the infrared coding pattern through the decoded digital signal of MP3 decoding chip for above-mentioned, and outwards launch through the digital signal behind the infrared coding above-mentioned by infrared transmission module; Or by the digital signal behind the infrared receiving module reception process infrared coding, the infrared decoding module is decoded according to the infrared decoding pattern for above-mentioned digital signal through infrared coding, will be sent to through the digital signal behind the infrared decoding MP3 decoding chip by controller steering logic interface module.
6. data transmission method as claimed in claim 5 is characterized in that: that above-mentioned infrared data transmission module adopts is serial infrared transmission SIR or median infrared transmission MIR.
7. data transmission method as claimed in claim 6 is characterized in that: what above-mentioned Infrared Transmission pattern adopted is the anti-phase return-to-zero modulation coded system of RZI, and its data packet format is start bit, address bit, data subject, check bit and position of rest.
8. data transmission method as claimed in claim 5 is characterized in that: that above-mentioned infrared data transmission module adopts is high speed infrared transmission mode FIR.
9. data transmission method as claimed in claim 8 is characterized in that: what above-mentioned Infrared Transmission pattern adopted is 4PPM-impulse phase modulation coding mode, and its data packet format is guiding position, start bit, data subject and stop element.
10. data transmission method as claimed in claim 5 is characterized in that: that above-mentioned infrared data transmission module adopts is hypervelocity Infrared Transmission pattern VFIR.
11. data transmission method as claimed in claim 10, it is characterized in that: that above-mentioned Infrared Transmission pattern adopts is HHH (1,13) coding mode, its data packet format are guiding position, start bit, data subject, check bit, filler, position of rest and spare bits.
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| CN2005100370033A CN1924836B (en) | 2005-09-01 | 2005-09-01 | Audio play device with infrared auxiliary transmission function and data transmission method thereof |
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| CN2005100370033A CN1924836B (en) | 2005-09-01 | 2005-09-01 | Audio play device with infrared auxiliary transmission function and data transmission method thereof |
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| CN1924836A CN1924836A (en) | 2007-03-07 |
| CN1924836B true CN1924836B (en) | 2013-03-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104240747B (en) * | 2013-06-07 | 2017-03-15 | 炬芯（珠海）科技有限公司 | The method and device that a kind of multi-medium data is obtained |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107293108A (en) * | 2017-08-30 | 2017-10-24 | 贝分科技（杭州）有限公司 | Applied to the infrared data communication device of sorting system, method and sorting system |
| CN112152713B (en) * | 2019-06-28 | 2022-09-30 | Oppo广东移动通信有限公司 | Display method, display device, terminal, display device, storage medium and electronic device |
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| CN2563662Y (en) * | 2002-09-03 | 2003-07-30 | 肖方 | Intelligent preforecast systemfor coming bus at public bus station |
| US6671325B2 (en) * | 1999-10-25 | 2003-12-30 | Free Systems Pte. Ltd. | Wireless infrared digital audio system |
| CN2676294Y (en) * | 2003-12-29 | 2005-02-02 | 叶明祥 | Audio playing device with infrared transmission |
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| US6671325B2 (en) * | 1999-10-25 | 2003-12-30 | Free Systems Pte. Ltd. | Wireless infrared digital audio system |
| CN2563662Y (en) * | 2002-09-03 | 2003-07-30 | 肖方 | Intelligent preforecast systemfor coming bus at public bus station |
| CN2676294Y (en) * | 2003-12-29 | 2005-02-02 | 叶明祥 | Audio playing device with infrared transmission |
Non-Patent Citations (1)
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104240747B (en) * | 2013-06-07 | 2017-03-15 | 炬芯（珠海）科技有限公司 | The method and device that a kind of multi-medium data is obtained |
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