CN1652094A

CN1652094A - Audio-visual combination seat device and related device

Info

Publication number: CN1652094A
Application number: CN 200410004073
Authority: CN
Inventors: 王智麟; 周呈威
Original assignee: Genesys Logic Inc
Current assignee: Genesys Logic Inc
Priority date: 2004-02-04
Filing date: 2004-02-04
Publication date: 2005-08-10

Abstract

The present invention relates to an image-voice combined base device and its related devices. It includes USB connector connected with USB device; OTG controller coupled with USB connector for accessing data of USB device; random access memory coupeld with OTG controller; image-voice coding/decoding engine coupled with OTG controller; and PC peripheral equipment connector coupled with OTG controller for accessing the data of PC peripheral equipment. Besides, said invention also provides the concrete action of the above-mentioned every component and its working mode.

Description

Audio-visual combination base unit and relevant apparatus thereof

Technical field

Relevant a kind of audio-visual combination base unit of the present invention and relevant apparatus thereof, relevant especially a kind of audio-visual combination base unit of playing video-audio data in the carry-on dish of editing.

Background technology

The existing carry-on dish of MP3 can provide the storage and the playing function of MP3 data, as shown in Figure 1, A type USB joint (A-type USB plug) the 11 essential direct A type USB slots (A-type USB receptacle) 21 by a main frame 2 of the carry-on dish 1 of MP3 link, make the carry-on dish 1 of MP3 in main frame 2, download transmission MP3, the music compression file of WMV form, the binding of file and editor's ownership are on top of in the software for editing of main frame 2, store in the carry-on dish of MP3 or play and only can the MP3 music data file be loaded in the one-way transmission mode, the carry-on dish 1 of the MP3 of each unit can't directly transmit data to each other, and the carry-on dish 1 of the MP3 of each unit also can't with other medium, as hard disk, CD-ROM drive, high capacity storage devices such as optical disk recording device or DVD cd-rom recorder link the transmission data, cause the carry-on dish 1 of MP3 not only in Data Update, be restricted on the editor, and on the operating function of reality, also only can seem quite dull, can't provide more industrial utilization to attract consumer's desire to purchase as the function of the player of MP3 music data.

Roughly the same on carry-on dish 1 of existing MP3 and the carry-on dish of existing USB (not shown) inner structure, have USB controller and flash memory equally, the size of flash memory is then closely bound up with user's ease of use, the flash capacity big person of healing, the user just can store the more data or music file, but it should be noted that whole carry-on dish cost the highest partly be flash memory, and the carry-on dish 1 of existing MP3 is because have attracting MP3 playing function, so it is a lot of generally to be higher than existing carry-on dish in the price of selling on the market; After the user has bought existing carry-on dish, but to spend higher expense and remove to buy the existing carry-on dish 1 of MP3, and can't commonly use for the flash memory of tip heigh wherein, belong to sorry and waste to the user is real.

Summary of the invention

The purpose of this invention is to provideA kind of audio-visual combination base unit and relevant apparatus thereof of playing video-audio data in the carry-on dish of editing.

A kind of audio-visual combination base unit according to an aspect of the present invention comprises: in order to connect the USB connector of USB device; Otg controller couples USB connector, in order to access USB device; Random access memory couples otg controller, in order to the temporary compression video-audio data that reads from the USB device; The decoding engine couples otg controller, in order to decipher compression video-audio data one-tenth and the output compression video-audio data through decoding; PC peripheral device connector couples otg controller, in order to link the PC peripheral device, makes otg controller will compress video-audio data by PC peripheral device connector and deposits in the PC peripheral device; And built-in battery and direct current be to direct current transducer, and built-in battery couples direct current to direct current transducer, to supply the operating voltage of audio-visual combination base unit; Preferably, USB connector is an A type USB slot, for the traditional carry-on dish of connection, and is extended for video-audio playing device; Audio-visual combination base unit is with after the USB device has just been finished the initialize routine that is connected, and audio-visual combination base unit is inspected the file configuration table in the USB device, produces the audio/video file structure in random access memory, with the follow-up user's of facility operation with correspondence.

A kind of audio-visual combination base unit according to a further aspect of the invention comprises: in order to connect the USB connector of USB device; Otg controller couples USB connector, in order to access USB device; Random access memory couples otg controller; Audio-visual coding and decoding engine couples otg controller; And PC peripheral device connector, couple otg controller, in order to link the PC peripheral device, make otg controller pass through PC peripheral device connector access PC peripheral device; Wherein, when otg controller reads the compression video-audio data and will compress video-audio data temporary during to random access memory from the USB device, video-audio data is compressed in decodable code of audio-visual coding and decoding engine and output, with in response to first external command; And receive in the video-audio data from outside when audio-visual combination base unit, audio-visual coding and decoding engine can be with video-audio data compressed encoding and temporary to random access memory, with in response to second external command.

Provide a kind of otg controller according to another aspect of the invention, it comprises: ROM (read-only memory); Random access memory; Microcontroller couples ROM (read-only memory) and random access memory; The OTG logic control circuit couples microcontroller; The random access memory interface couples the OTG logic control circuit, in order to couple the external random access storer; The coding/decoding interface couples the OTG logic control circuit, in order to couple audio-visual coding and decoding engine; Buffer cell is gone in output, couples the OTG logic control circuit; The serial interfaces engine couples output and goes into buffer cell; And OTG physical layer circuit, couple the serial interfaces engine; Wherein, the OTG logic control circuit can be gone into buffer cell by OTG physical layer circuit, serial interfaces engine and output and read the compression video-audio data and will compress video-audio data and keep in to the external random access storer from the outside USB device that connects.

Further, otg controller comprises audio-visual coding and decoding engine with decoding and output compression video-audio data, perhaps, audio-visual coding and decoding engine is with video-audio data compressed encoding and temporary to random access memory, and otg controller also comprises man-machine interface, in order to couple miniscope and a plurality of operation push-button, miniscope provides operation information, and operation push-button is then in order to control the operating mode of otg controller; PC peripheral device interface couples the OTG logic control circuit, and in order to couple the PC peripheral device, PC peripheral device interface can be ide interface, 1394 interfaces or USB interface; And the phase-locked loop, in order to first clock pulse and second clock pulse to be provided, couple microcontroller and OTG physical layer circuit respectively, for its running, first clock pulse is preferably far below second clock pulse.

For further specifying above-mentioned purpose of the present invention, design feature and effect, the present invention is described in detail below with reference to accompanying drawing.

Description of drawings

Fig. 1 is the system block diagrams that existing carry-on dish and main frame link transmission MP3 music data;

Fig. 2 is the synoptic diagram of the audio-visual combination base unit of the present invention's one specific embodiment;

Fig. 3 is the circuit block diagram of the otg controller of specific embodiment shown in Fig. 2; And

Fig. 4 is the synoptic diagram of an application example of audio-visual combination base unit of the present invention among Fig. 2.

Embodiment

Fig. 2 illustrates audio-visual combination pedestal (docking base) device 3 of the present invention's one specific embodiment, audio-visual combination base unit 3 comprises USB connector 31, OTG (On-The-Go, abbreviation OTG) controller 32, random access memory (random access memory, be called for short RAM) 33, coding and decoding engine (encoder/decoder, be called for short CODEC) 34, PC peripheral device connector 35, built-in battery 36 and direct current be to direct current transducer 37, wherein:

(a) USB connector 31, its pattern is regardless of, can be USB A-TYPE, USB B TYPE or USB mini-AB connector, it preferably is standard A type USB slot, A type USB joint 11 in order to the existing carry-on dish 1 of pegging graft, as understood by the skilled person, can be transferred by suitable patchcord between the various USB connector.

(b) otg controller 32 couples USB connector 31, with the control USB device 4 that linked of USB connector 31 or file system (FILE SYSTEM) management, binding and the data access of audio-visual combination base unit 3, otg controller 32 is coordinated the running of control random access memory 33 and coding and decoding engine 34.

(c) otg controller 32 couples random access memory (random access memory is called for short RAM) 33, with the data working area as otg controller 32 data accesses or processing.The pattern of random access memory 33 is not limit, can be Synchronous Dynamic Random Access Memory (synchronous DRAM, be called for short SDRAM), static RAM (static RAM is called for short SRAM), and flash memory memory assemblies such as (flash memory).

(d) coding and decoding engine 34 couples otg controller 32, the input editing of compression video-audio data or the coding (ENCODE) of output broadcast or the device of decoding (DECODE) as otg controller 32, and coding and decoding engine 34 comprises input end 341 and output terminal 342, the pattern of input end 341 and output terminal 342 is not limit, can be the SPI interface, the IIS interface, sequence (SERIAL) interface or (PARALLEL) interface arranged side by side, for externally linking LCD TV (LCD TV), box on the machine (SET TOP BOX), personal digital aid (PDA) (PDA), DSC, digital camera (DV), mobile phone, devices such as scanner (SCANNER) or MFP, give coding and decoding engine 34 with input audio-visual packed data of mpeg format or JPEG compressing image image data, or coding and decoding engine 34 decompressed and the video-audio data deciphered is sent to above-mentioned LCD TV (LCD TV), box on the machine (SET TOPBOX), personal digital aid (PDA) (PDA), DSC, digital camera (DV), battery phone (CELL PHONE), play or output in the device such as printer (PRINTER) or MFP.

(e) PC peripheral device connector 35 couples otg controller 32, in order to external binding PC peripheral device, the pattern of PC peripheral device connector 35 is not limit, it for example is ATAPI interface or flash memory access interface, the PC peripheral device can be devices such as the big nurse dish of USB, calculating punch, hard disk, CD-ROM drive and erasable CD/DVD CD writers, to compress video-audio data by otg controller 32 by PC peripheral device connector 35 and deposit in the PC peripheral device, or compression video-audio data stored in the PC peripheral device will be read in the otg controller 32 by PC peripheral device connector 35.

(f) built-in battery 36 links direct current to direct current transducer 37, the running that direct current transducer 37 conversion output appropriate voltage is supplied otg controller 32 by direct current again, and direct current is regardless of the pattern of direct current transducer 37, can be the direct current that boosts charge pump (CHARGE PUMP) to direct current, the voltage of built-in battery 36 can be elevated to otg controller 32, random access memory 33, the required operating voltage of circuit such as coding and decoding engine 34 and PC peripheral device connector 35, for example: 1.5 volts of DC voltage are boosted produces 2.5 volts, 3.5 the power supply of volt and DC voltage such as 5 volts is exported.

According to the novel framework of disclosed audio-visual combination base unit 3 as shown in Figure 2, can convenient user directly the carry-on dish 1 of existing tradition be extended for the carry-on dish of MP3 on hand, make that the flash memory in the carry-on dish 1 of tradition obtains to fully play; On the other hand, PC peripheral device connector 35 can be the IDE connector, 1394 connectors, flash memory connector or USB connector, with the IDE connector is example, can make things convenient for the user directly existing PC hard disk or DVD cd-rom recorder to be connected on the audio-visual combination base unit 3 via PC peripheral device connector 35 on hand, make that the user can be with the data in the carry-on dish 1 of tradition or music format file backup in the PC peripheral device, perhaps data in the PC peripheral device or music format file are updated to tradition dish 1 with oneself, even need not activate personal computer and wait for the boot program that it is tediously long.

Please cooperate shown in Figure 3 again, this figure is the circuit block diagram of the otg controller 32 of preferred embodiment shown in Figure 2, otg controller 32 comprises microcontroller 321, ROM (read-only memory) 322, random access memory 323, OTG logic control circuit 324, PC peripheral device interface 325, random access memory connects 326, buffer cell 327 is gone in output, serial interfaces engine 3 28, OTG physical layer circuit 329, coding/decoding interface 330, man-machine interface 321 and programmable phase-locked loop 332, wherein: microcontroller 321 is coordinated the running of all multiple-units of control, with the control data transmission path, access, decoding, coding and electricity-saving mechanism, microcontroller 321 couples ROM (read-only memory) 322 and random access memory 323, in initial phase, to random access memory 323, facility was coordinated the running of all multiple-units of control to microcontroller 321 after initialization finished with random access memory 323 operation procedure codes from ROM (read-only memory) 322 loading procedure codes; Otg controller 32 can couple coding and decoding engine 34 by coding/decoding interface 330, and couple miniscope so that the user to be provided operation information by man-machine interface 32, man-machine interface 32 also can couple a plurality of operation push-buttons, simple operations for the user, and PC peripheral device interface 325 can externally couple PC peripheral device connector 35, for example, PC peripheral device interface 325 can be ide interface, 1394 interfaces, flash interface or USB interface, so that the backup path of user's mass data to be provided, need not rely on the complex operations of personal computer fully, and can save a large amount of power consumptions.

Please continue with reference to figure 3, OTG physical layer circuit 329 externally couples the USB connector 31 of Fig. 2, in order to connect tradition dish 1 with oneself, to play the MP3 music is example, just connected and gone up tradition with oneself during dish 1, audio-visual combination base unit 3 and tradition dish 1 are with oneself carried out signal shake hands (handshake), with the master slave relation of judging both sides and determine the signal transmitting speed, in this embodiment, audio-visual combination base unit 3 be main and tradition with oneself dish 1 for from, therefore assign instruction by otg controller 32 and give tradition dish 1 with oneself, at first microcontroller 321 can be via OTG logic control circuit 324, buffer cell 327 is gone in output, serial interfaces engine 3 28, and OTG physical layer circuit 329, issue an order to search MP3 music file in carry-on dish 1 file structure of tradition, and MP3 music file in carry-on dish 1 file structure of tradition produced MP3 music file structure in a predefined manner, be stored in the random access memory 33 of Fig. 2 via random access memory interface 326, it preferably is Synchronous Dynamic Random Access Memory, this MP3 music file structure preferably occupies the fixing zone of Synchronous Dynamic Random Access Memory, inquiry for otg controller 32, and be shown in miniscope (not shown) on the audio-visual combination base unit 3 by man-machine interface 321, for user's reference.When the user selects a certain first MP3 music to play, microcontroller 321 can be via OTG logic control circuit 324, buffer cell 327 is gone in output, serial interfaces engine 3 28, OTG physical layer circuit 329 is assigned the order of reading of data to the carry-on dish 1 of tradition, continuously how first MP3 music is write random access memory 33 through after the error correction, space with abundant utilization random access memory 33, afterwards just with OTG physical layer circuit 329 and tradition with oneself the bus signals of 1 in dish close, to reach economize on electricity fully, OTG logic control circuit 324 begins to read the music data in the random access memory 33 then, transfers to coding and decoding engine 34 and deciphers broadcast; If the user chooses the music in the random access memory 33, all needn't activate usb bus and carry out data transmission, and if user's music in the repeat playing random access memory 33 always, its power consumption degree is then quite low, because running therebetween only needs via random access memory 33, OTG logic control circuit 324 and coding and decoding engine 34.

Further, audio-visual combination base unit 3 according to the present invention can utilize coding and decoding engine 34 that outside music signal is carried out compressed encoding independently and keep in to random access memory 33, pending data is recorded and is finished or recorded when filling up random access memory 33 soon, move together again to named place of destination, for example in the carry-on dish 1 of tradition, to save the power consumption of usb bus.Programmable phase-locked loop 332 can produce different clock pulses by inserting different parameters, for example, when the otg controller 32 of audio-visual combination base unit 3 determines this as console controller (host controller), preferably, programmable phase-locked loop 332 provides microcontroller 321 and main number logical gate clock pulse CLKA, 30 megahertzes (MHz) for example, then supply clock pulse CLKB for the OTG physical layer circuit 329 that operates on USB2.0 and give OTG physical layer circuit 329, the clock pulse of 480 megahertzes for example, therefore, when audio-visual combination base unit 3 OTG physical layer circuit 329 is closed very power saving of Shi Zehui with clock pulse CLKB, audio-visual combination base unit 3 utilizes length service time of general dry cell then to hold bad user's use habit to have different with purpose.

Further consult shown in Figure 4, for audio-visual combination base unit 3 of the present invention is linked existing USB device 4, wherein, USB device 4 can be that any USB of meeting stores the device of agreement in a large number or other meets the device of USB OTG specification, be its illustrative examples then in the embodiment shown in fig. 3 with carry-on dish, wherein, USB device 4 comprises USB connector 41, USB controller 42 and PC peripheral device connector 43, be connected with USB controller 42 in 41 pairs of the USB connector, externally be connected with USB connector 31, USB controller 42 can be usb host controller or USB Setup Controller, and above-mentioned PC peripheral device connector 35 can externally link PC peripheral device 431.

Application examples as shown in Figure 4, after audio-visual combination base unit 3 and USB device 4 link, confirm master slave relation each other according to the standard of OTG agreement each other, otg controller 32 can be linked up by the PC peripheral device 431 that USB connector 31 is connected with USB device 4, store the standard of agreement (massstorage class protocol) in a large number via USB, just can utilize this agreement to link the PC peripheral device 431 that meets an agreement by otg controller 32 and USB device 4 links up, can discern PC peripheral device 431 interior file structure and the number of files that USB device 4 is linked according to the firmware of otg controller of the present invention 32 inside, carry out file management with the internal data that allows the PC peripheral device 431 that otg controller 32 connected by 32 pairs of USB devices 4 of USB connector, be PC peripheral device 431 interior all file datas that otg controller can directly read USB device 4, also file data can be written to memory storage in the PC peripheral device 431 by otg controller 32, in brief, the PC peripheral device 431 of a large amount of storage standard of all USB of meeting is linked on the USB device 4, and audio-visual combination base unit 3 of the present invention can utilize otg controller 32 and file system that PC peripheral device 431 is carried out data management and sound processing.

See also shown in Figure 4, below enumerate several data decodings broadcasts and encoding operation pattern now again and further illustrate its data access path, play by PC peripheral device 431 decodings that USB device 4 links, when audio-visual combination base unit 3 of the present invention is obtained binding by USB controller 42 and PC peripheral device 431 that USB stores agreement and USB device 4 in a large number, and definite master slave relation and file are when linking up with administrative mechanism, in order to reach the purpose of power-save operation, the USB controller 42 that the otg controller 32 of obtaining the audio-visual combination base unit 3 of main frame (host) status can contrapositions be in the USB device 4 of device (device) sends abort commands (suspend command) makes it enter battery saving mode, Deng outer triggering signal (button for example, when switch etc.) notice needs further access data, just can wake (wake up) device up; When the outer triggering signal action is arranged, otg controller 32 can wake USB device 4 up, and by the file data that finds in the previous acquired file system in the PC peripheral device 431, receive the data of the PC peripheral device 431 that is linked from USB device 4 by USB connector 31 for receiving end by the OTG physical layer circuit 322 of otg controller 32, and it is data are temporary to random access memory 33 interior storages, this moment USB controller 42 with all in running order data of transmitting each other of otg controller 32, in this embodiment, can be convenient the user will be on hand IDE hard disk or USB hard disk, store a large amount of MP3 music, and play-over out via audio-visual combination base unit 3 of the present invention, perhaps recorded storage, therefore audio-visual combination base unit 3 of the present invention can allow the investment of the existing PC peripheral device of user obtain maximum performance and increase its convenience.

Continue to consult shown in Figure 4, with Fig. 2 embodiment similarly, when video-audio data commonly used, the compression video-audio data of form such as MP3/WMA/MPEG for example, be temporary in the random access memory 33, can take out and give coding and decoding engine 34 and decipher action by otg controller 32, and the video-audio data output broadcast that will decompress by the output terminal 342 of compressed code/decoding engine 34; On the other hand, the user also can be with behind original video-audio data process coding and decoding engine 34 compressed encodings, become the video-audio data of MPEG or jpeg format as compressed encoding, be stored in random access memory 33, during fast by the time expiring, take out through otg controller 32 again, and activation OTG physical layer circuit 329 transmits, by USB connector 31, and deposit in the high capacity storage device of PC peripheral device, for example the USB hard disk; When otg controller 32 desires are play in the USB hard disk MP3 music file at the beginning, can be by inspecting USB fixed disk file allocation list (file allocationtable, be called for short FAT), and produce MP3 music file structure in a predefined manner, be stored in the random access memory 33 of Fig. 2 via random access memory interface 326, it preferably is Synchronous Dynamic Random Access Memory, this MP3 music file structure preferably occupies the fixing zone of Synchronous Dynamic Random Access Memory, and can present by man-machine interface 331 operations, because the content of random access memory can regularly discharge and recharge, therefore all are temporary in music data and the MP3 music file structure of playing in the Synchronous Dynamic Random Access Memory, can progressively discharge storage space after the schedule time after the user stops playing, and progressively close the power consumption of storer.

Please consult shown in Figure 4 again, the PC peripheral device connector 35 that is provided in the audio-visual combination base unit 3 of the present invention is be provided, for example, be IDE connector 35, to allow the user to utilize audio-visual combination base unit 3 of the present invention on hand with it and existing hard disk, PC peripheral devices such as CD CD writers and DVD CD writers link, deposit the PC peripheral device the original video-audio data in the PC peripheral device is carried out return behind the compressed encoding, or the compression video-audio data in the PC peripheral device loaded in the audio-visual combination base unit 3 decipher broadcast, or by the original video-audio data of input end 341 inputs of the coding and decoding engine 34 of audio-visual combination base unit 3, compressed again coding returns to be deposited to the PC peripheral device, perhaps can directly need not operate through the complexity of personal computer, and the USB device that USB connector 31 is connected, for example be tradition dish 1 with oneself, interior data directly back up or are burned onto in the discs.

In sum, the embodiment of disclosed audio-visual combination base unit, be not limited in and USB device 4, the identical audio-visual combination base unit 3 or the binding of PC peripheral device are used, for example, USB connector 31 can link and meet USB and store the device of agreement or the device of OTG specification in a large number, personal computer for example, notebook, the personal digital assistant device, DV, devices such as digital camera, equally can be by the video-audio data compressed encoding, decoding decompress to be play or operator scheme and functions such as data access, reaches to allow video-audio data decompress, the purpose of decoding broadcast or mutual data access.

Indulge the above, the present invention discloses a kind of audio-visual combination base unit, comprises: in order to connect the USB connector of USB device; Otg controller couples USB connector, in order to access USB device; Random access memory couples otg controller, in order to the temporary compression video-audio data that reads from the USB device; The decoding engine couples otg controller, in order to decipher compression video-audio data one-tenth and the output compression video-audio data through decoding; PC peripheral device connector couples otg controller, in order to link the PC peripheral device, makes otg controller will compress video-audio data by PC peripheral device connector and deposits in the PC peripheral device; And built-in battery and direct current be to direct current transducer, and built-in battery couples direct current to direct current transducer, to supply the operating voltage of audio-visual combination base unit; Preferably, USB connector is an A type USB slot, for the traditional carry-on dish of connection, and is extended for video-audio playing device; Audio-visual combination base unit is with after the USB device has just been finished the initialize routine that is connected, and audio-visual combination base unit is inspected the file configuration table in the USB device, produces the audio/video file structure in random access memory, with the follow-up user's of facility operation with correspondence.

The present invention also discloses a kind of audio-visual combination base unit, comprises: in order to connect the USB connector of USB device; Otg controller couples USB connector, in order to access USB device; Random access memory couples otg controller; Audio-visual coding and decoding engine couples otg controller; And PC peripheral device connector, couple otg controller, in order to link the PC peripheral device, make otg controller pass through PC peripheral device connector access PC peripheral device; Wherein, when otg controller reads the compression video-audio data and will compress video-audio data temporary during to random access memory from the USB device, video-audio data is compressed in decodable code of audio-visual coding and decoding engine and output, with in response to first external command; And receive in the video-audio data from outside when audio-visual combination base unit, audio-visual coding and decoding engine can be with video-audio data compressed encoding and temporary to random access memory, with in response to second external command; Audio-visual combination base unit is with after the USB device has just been finished the initialize routine that is connected, and audio-visual combination base unit is inspected the file configuration table in the USB device, produces the audio/video file structure in random access memory, with the follow-up user's of facility operation with correspondence.

The present invention further discloses a kind of otg controller, comprises: ROM (read-only memory); Random access memory; Microcontroller couples ROM (read-only memory) and random access memory; The OTG logic control circuit couples microcontroller; The random access memory interface couples the OTG logic control circuit, in order to couple the external random access storer; The coding/decoding interface couples the OTG logic control circuit, in order to couple audio-visual coding and decoding engine; Buffer cell is gone in output, couples the OTG logic control circuit; The serial interfaces engine couples output and goes into buffer cell; And OTG physical layer circuit, couple the serial interfaces engine; Wherein, the OTG logic control circuit can be gone into buffer cell by OTG physical layer circuit, serial interfaces engine and output and read the compression video-audio data and will compress video-audio data and keep in to the external random access storer from the outside USB device that connects; Otg controller is with after the USB device has just been finished the initialize routine that is connected, and otg controller is inspected the file configuration table in the USB device, produces the audio/video file structure in random access memory, with the follow-up user's of facility operation with correspondence.

Further, otg controller can comprise audio-visual coding and decoding engine and compress video-audio data and export it with decoding, perhaps, audio-visual coding and decoding engine can be with video-audio data compressed encoding and temporary to random access memory, and otg controller also comprises man-machine interface, in order to couple miniscope and a plurality of operation push-button, miniscope provides operation money to interrogate, and operation push-button is then in order to control the operating mode of otg controller; PC peripheral device interface couples the OTG logic control circuit, and in order to couple the PC peripheral device, PC peripheral device interface can be ide interface, 1394 interfaces or USB interface; And the phase-locked loop, in order to first clock pulse and second clock pulse to be provided, couple microcontroller and OTG physical layer circuit respectively, for its running, first clock pulse is preferably far below second clock pulse.

Though the present invention describes with reference to current specific embodiment, but those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the present invention, under the situation that does not break away from spirit of the present invention, also can make the variation and the modification of various equivalences, therefore, as long as variation, the modification to the foregoing description all will drop in the scope of claims of the present invention in connotation scope of the present invention.

Claims

1. audio-visual combination base unit comprises:

One USB connector is in order to connect a USB device;

One otg controller couples USB connector, in order to the data of access USB device;

One random access memory couples otg controller, in order to a temporary compression video-audio data that reads from the USB device; And

One decoding engine couples otg controller, in order to decipher compression video-audio data one-tenth and the output compression video-audio data through decoding.

2. audio-visual combination base unit as claimed in claim 1, it is characterized in that also comprising a PC peripheral device connector, couple otg controller,, make otg controller will compress video-audio data and deposit in the PC peripheral device by PC peripheral device connector in order to link a PC peripheral device.

3. audio-visual combination base unit as claimed in claim 1 is characterized in that also comprising a built-in battery and a direct current to direct current transducer, and built-in battery couples direct current to direct current transducer, to supply the operating voltage of audio-visual combination base unit.

4. audio-visual combination base unit as claimed in claim 1 is characterized in that USB connector is an A type USB slot.

5. audio-visual combination base unit as claimed in claim 1 is characterized in that USB connector is a USB mini-AB joint.

6. audio-visual combination base unit as claimed in claim 1, after it is characterized in that audio-visual combination base unit and the USB device just having been finished the initialize routine that is connected, audio-visual combination base unit is inspected the file structure of USB device, produces an audio/video file structure in random access memory with correspondence.

7. audio-visual combination base unit as claimed in claim 6 is characterized in that random access memory is to be a synchronous dynamic RAM.

8. audio-visual combination base unit as claimed in claim 7 is characterized in that audio-visual combination base unit is a file configuration table of inspecting in the USB device.

9. audio-visual combination base unit comprises:

One USB connector is in order to connect a USB device;

One random access memory couples otg controller; And

One audio-visual coding and decoding engine couples otg controller;

Wherein, when otg controller reads a compression video-audio data and will compress video-audio data temporary during to random access memory from the USB device, video-audio data is compressed in decodable code of audio-visual coding and decoding engine and output, with in response to one first external command; And receive in the video-audio data from outside when audio-visual combination base unit, audio-visual coding and decoding engine can be with video-audio data compressed encoding and temporary to random access memory, with in response to one second external command.

10. audio-visual combination base unit as claimed in claim 9 is characterized in that otg controller writes the video-audio data that is compressed coding in the random access memory in the USB device, with in response to second external command.

11. audio-visual combination base unit as claimed in claim 9 is characterized in that also comprising a PC peripheral device connector, couples otg controller, in order to link a PC peripheral device, makes otg controller pass through PC peripheral device connector access PC peripheral device.

12. audio-visual combination base unit as claimed in claim 9 is characterized in that also comprising a built-in battery and a direct current to direct current transducer, built-in battery couples direct current to direct current transducer, to supply the operating voltage of audio-visual combination base unit.

13. audio-visual combination base unit as claimed in claim 9 is characterized in that USB connector is an A type USB slot.

14. audio-visual combination base unit as claimed in claim 9, after it is characterized in that audio-visual combination base unit and the USB device just having been finished the initialize routine that is connected, audio-visual combination base unit is inspected the file structure of USB device, produces an audio/video file structure in random access memory with correspondence.

15. audio-visual combination base unit as claimed in claim 14 is characterized in that random access memory is to be a synchronous dynamic RAM.

16. audio-visual combination base unit as claimed in claim 15 is characterized in that audio-visual combination base unit is a file configuration table of inspecting in the USB device.

17. an otg controller comprises:

One ROM (read-only memory);

One random access memory;

One microcontroller couples ROM (read-only memory) and random access memory;

One OTG logic control circuit couples microcontroller;

One random access memory interface couples the OTG logic control circuit, in order to couple an external random access storer;

One coding/decoding interface couples the OTG logic control circuit, in order to couple an audio-visual coding and decoding engine;

Buffer cell is gone in one output, couples the OTG logic control circuit;

One serial interfaces engine couples output and goes into buffer cell; And

One OTG physical layer circuit couples the serial interfaces engine;

Wherein, the OTG logic control circuit can and be exported buffer cell and read a compression video-audio data and will compress video-audio data temporary to the external random access storer from a USB device by OTG physical layer circuit, serial interfaces engine.

18. otg controller as claimed in claim 17 is characterized in that decodable code of audio-visual coding and decoding engine and output compression video-audio data.

19. otg controller as claimed in claim 17 is characterized in that audio-visual coding and decoding engine can be with a video-audio data compressed encoding and temporary to the external random access storer.

20. otg controller as claimed in claim 17, it is characterized in that also comprising a man-machine interface, in order to couple a miniscope and a plurality of operation push-button, miniscope provides operation information, and described operation push-button is then in order to control the operating mode of otg controller.

21. otg controller as claimed in claim 17 is characterized in that also comprising a PC peripheral device interface, couples the OTG logic control circuit, in order to couple a PC peripheral device.

22. otg controller as claimed in claim 17 is characterized in that PC peripheral device interface is to be an ide interface.

23. otg controller as claimed in claim 17 is characterized in that PC peripheral device interface is to be a USB interface.

24. otg controller as claimed in claim 17 is characterized in that also comprising a phase-locked loop, in order to one first clock pulse and one second clock pulse to be provided.

25. otg controller as claimed in claim 24 is characterized in that, first clock pulse is far below second clock pulse.

26. otg controller as claimed in claim 25 is characterized in that second clock pulse is the running of using for OTG physical layer circuit.

27. otg controller as claimed in claim 26 is characterized in that first clock pulse is the running of using for microcontroller.

28. otg controller as claimed in claim 27 is characterized in that second clock pulse is 480Mhz.

29. otg controller as claimed in claim 17, after it is characterized in that otg controller and the USB device just having been finished the initialize routine that is connected, otg controller is inspected the file structure of USB device, produces an audio/video file structure in the external random access storer with correspondence.

30. otg controller as claimed in claim 29 is characterized in that the external random access storer is to be a synchronous dynamic RAM.

31. otg controller as claimed in claim 30 is characterized in that audio-visual combination base unit is a file configuration table of inspecting in the USB device.