CN1232114C

CN1232114C - Portable storing device

Info

Publication number: CN1232114C
Application number: CN 03152248
Authority: CN
Inventors: 陈逸群
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-01-29
Filing date: 2003-07-30
Publication date: 2005-12-14
Anticipated expiration: 2023-07-30
Also published as: TWI225196B; TW200413905A; CN1518357A

Abstract

To provide a USB device and a control method thereof capable of supporting a single operation of a plurality of kinds of storage media and improving a user convenience as well as saving power. The USB device comprises a bus switching means, a detection means, an auxiliary power unit and a power control means. The bus switching means controls a USB connection between a storage medium and a host so that they are physically engaged or disengaged. The detection means detects the storage medium that has been switched and engaged by the bus switching means. The auxiliary power unit is a power source capable of supplying power to the USB device in a system different from that for power supply for the bus. The power control means controls supply by power supply of the bus and the auxiliary power so that in the state before the storage medium is engaged, power supply inside is made only to a minimum functional block based on the detection result by the detection means. (C)2004,JPO&NCIPI.

Description

Portable memory device

(1) technical field

The present invention relates to a kind of portable memory device, particularly relate to and a kind ofly the DID of a digital camera can be transcribed into an optical storage media, and the portable memory device on the Storage Media of other kind.

(2) background technology

Digital camera (DSC) in recent years along with its vital part-charge coupled cell (CCD) and CMOS etc.-integrated level improve constantly, make by the captured image quality that goes out of digital camera at all not second to traditional film (film) formula camera, its principle is after capturing light signal and be converted into the signal of telecommunication again by charge coupled cell, promptly be converted to view data at last, therefore, do not need egative film when using digital camera, but come the store digital view data with memory (Memory).And digital camera with image digitazation after, then be to be stored in the memory with the file data kenel, and by card reader (reader) or direct being connected carrying out transfer of data with computer, so can on computer screen, make amendment, or, need not spend any egative film develop fee and use and the time of waiting for directly by printer output.

Because above-mentioned advantage, make digital camera replace traditional camera gradually and occupy a tiny space.

Be subject to the consideration on the cost, thus digital camera itself can't in have the memory of suitable high power capacity, the bigger storage card of a capacity comes the store images data so general user all can arrange in pairs or groups.Existing storage card then for example has CompactFlash (CF), MicroMedia (MM), MemoryStick (MS), SecureDigital (SD) or the like.Yet the pixel (pixels) that can capture along with digital camera day by day increases, so often more than the hundreds of easily KB of digital photograph (kilobit tuple), with the capacity (about 256MB) of existing storage card, and can't hold a large amount of digital pictures.

On the other hand, because price occupies high cause, so for the user, can not buy a large amount of storage cards in case of need, but if earlier will not store up full data conversion storage in the storage card to other Storage Media, then this storage card can't further be used again repeatedly, causes the puzzlement in the use.

For the foregoing reasons, the present application people considers the capacity/price ratio consideration based on various Storage Medias, economic way is with in data transcription to an optical storage media, for example CD, DVD, because the high power capacity and Portable (portable) characteristic of optical storage media are so can fully be accepted by the user.In addition, because the user generally all is at the outdoor application digital camera, therefore if one " Portable " storage rerecording device (portable) can be provided, just can be under the situation that lacks computer equipment, DID is transcribed in other Storage Media by digital camera, particularly in the optical storage media, make that the storage card of digital camera can further be used repeatedly.

(3) summary of the invention

The object of the present invention is to provide a kind of portable memory device that can its DID be write an optical storage media for a digital camera.

Therefore, portable memory device of the present invention can a digital camera is captured the numerical digit view data transcribe in an optical storage media and at least one storage card on one of them, the characteristics of this portable memory device are to include an operating assembly, a reading assembly, a processing components and a record component.

Operating assembly be for user operation with selected this optical storage media and this storage card wherein one as a target Storage Media.Reading assembly has a media conversion controller, a plurality of connectivity port that is connected on this media conversion controller and can this storage card of confession be connected, and a transmit port that can read this DID and be connected with this media conversion controller.Processing components has a central processing unit that is connected with this media conversion controller, and one be connected with this central processing unit and store the read-only memory of a plurality of computer program sign indicating numbers, this central processing unit can be subjected to the control of this operating assembly, and carries out this computer program sign indicating number this DID is treated to the data format that is compatible to this target Storage Media.Record component is to be used for ccontaining this optical storage media and this storage card, and can write in this target Storage Media through this processing modules process DID later.

And utilize above-mentioned framework, make the user when operation is of the present invention, free space that can first query aim Storage Media, and selected optical storage media or other Storage Media be as behind the target Storage Media of transcribing just can carry out the transmission of data automatically and transcribes.

(4) description of drawings

Below by most preferred embodiment and accompanying drawing portable memory device of the present invention is elaborated, in the accompanying drawing:

Fig. 1 is a schematic diagram, and the relation between an embodiment of portable memory device of the present invention and a digital camera, an optical storage media, a storage card is described.

Fig. 2 is a stereogram, and the actual framework of this embodiment is described.

Fig. 3 is a flow chart, illustrates to utilize this embodiment to carry out the step of data transcription.

(5) embodiment

Consult Fig. 1 and Fig. 2, portable memory device 10 of the present invention is a digital camera 20 captured DIDs to be transcribed in an optical storage media 30 and a storage card 40 on one of them.In the present embodiment, for example refer to can be for recordable CD (CD-R), duplicative CD (CD-RW) or the recordable digital image and sound optical disk (DVD-R, DVD-RAM, DVD-RW, DVD+RW) etc. that write for optical storage media 30.And storage card 40 refers to for example CF (compact flash), SM (SmartMedia), MS (memory stick), SD (security disk), MMC (multimedia card), with and similar flash memory (flash).

The embodiment of portable memory device 10 of the present invention includes an operating assembly 1, a reading assembly 2, a record component 3, and a processing components 4.

Operating assembly 1 has a plurality of buttons (figure does not show) that are arranged on the housing 101, and a display screen 12 that is arranged on outside the housing 101.These buttons are can be for user's operation, and its effect will describe in detail hereinafter.But need know that by pressing keys the On/Off, optical storage media 30 that the user promptly can carry out power supply is with the selected of storage card 40 and write (record), play actions such as (play).12 of display screens are to show that inside of the present invention carries out state of data processing or the like, in the present embodiment, are meant a liquid crystal type display screen especially.

Reading assembly 2 has a media conversion controller 21, a plurality of connectivity port that is connected with media conversion controller 21 22,23, one first transmit port 24 and one second transmit port 25.First transmit port 24 and second transmit port 25, in the present embodiment, be meant a USB transmit port and an IEEE1394 (firewire) transmit port respectively, certainly, the transfer protocol specification of USB transmit port is compatible in USB2.0 and USB 1.1 and USB OTG or the like.Therefore, by first, second transmit port 24,25 just can be directly with cable (figure does not show) and digital camera 20 lines, and downloaded by the DID that first, second transmit port 24,25 will be stored in the digital camera 20.In order to control USB transmit port and IEEE transmit port 24, reading assembly 2 also has the two USB controllers 26 and IEEE 1394 controllers 27 that are connected in 21 of transmit port 24,25 and media conversion controllers, because these controllers the 26, the 27th are used for controlling principal and subordinate (master/slave) relation, packet data transmission etc., because this is a prior art, thereby no longer describes in detail at this.

On the other hand, connectivity port 22,23 refers to the electric connector that can supply storage card 40 to plug, there are a plurality of conducting terminals (figure does not show) its inside, can contact with the conducting terminal (figure does not show) on the storage card 40, so storage card 40 is carried out reading or writing of data, in the present embodiment, connectivity port 22,23 includes the pattern of two kinds of different sizes, a connectivity port 22 is to plug for SD/MMC/MS, another connectivity port 23 is to plug for the CF card, therefore goes for the used storage card of most label digital cameras.When the DID in the digital camera 20 is to store in the contained storage card of digital camera 20 (figure does not show), then can be directly the storage card of digital camera 20 be inserted on connectivity port 22 or the connectivity port 23, by the effect of media conversion controller 21, just can read the DID of digital camera 20 again.In addition, reading assembly 2 also has a radio transmitting device 28 that is connected with media conversion controller 21, this radio transmitting device 28 is according to the agreement of wireless transmission such as blue bud (bluetooth) or 802.11a, 802.11b, therefore if also have corresponding radio transmitting device on the digital camera 20, then can utilize wireless communication mode that the DID in the digital camera 20 is transferred on this media conversion controller 21.

Record component 3 is a cd-rom recorder (CD/DVD burner) substantially, therefore record component 3 can be for the accommodation space 31 of ccontaining optical storage media 30 except having one, also have an optical read/write head 32, and one drives servo motor 33 that optical read/write head 32 moves or the like.Must it should be noted that in the present embodiment, record component 3 is one integrity with both sides with reading assembly 2, in other words, by the effect of optical read/write head 32, not only can carry out data to optical storage media 30 and write, also can carry out the action of data read, also be a member of reading assembly 2 therefore.

Certainly, 32 emitted laser optical wavelength of optical read head need be corresponding with optical storage media 30, for example the cd-rom recorder of CD-RW formula can only read and write discs (CD), and the cd-rom recorder of DVD-RW formula can read, write discs (CD) and audio-visual CD (DVD), in the present embodiment, record component is to represent with DVD-RW, but should be only with this restriction as present embodiment.According to above-mentioned notion, connectivity port 22 is except reading the data in the storage card 40 for storage card 40 plugs, and can come storage card 40 is carried out the action that data write by connectivity port 22, so connectivity port 22 also be one of them member of record component 3.

Processing components 4 is to be connected between operating assembly 1, reading assembly 2 and the record component 3.Processing components 4 has a central processing unit (processor) 41, a read-only memory (ROM) 42, a digital signal processor (DSP) 43, and a digital/analog converter (DAC) 44.

Central processing unit 41 is to be connected with media conversion controller 21, read-only memory 42 via a system bus (system bus) 410, and is control core of the present invention, can do further action according to the button that the user pushed.Read-only memory 42 interior reservoir have a plurality of computer program sign indicating numbers, and this computer program sign indicating number is carried out after supplying central processing unit 41 to catch and get (fetch), decoding, so that carry out the actions such as reading, write of data for optical storage media 30 or storage card 40.Simultaneously in the read-only memory 42 and for example store wireless communication protocol with radio transmitting device 28 corresponding digital cameras 20, and the parameter preset of control optical read/write head 32, connectivity port 22,23 or the like hardware.

Certainly, for the speed of OverDrive CPU 41 processing instructions (instruction), a random-access memory (ram) 45 is to be connected with central processing unit 41, can data be written into operation in order to computing for central processing unit 41.Media conversion controller 21 is to accept to come from the central processing unit 41 inner buffers (regi ster) or the data of random access memory body 45, and just as a router (router), data correctly can be sent on specific connectivity port 22,23 or the transmit port 24,25.

In addition, processing components 4 also has a radio frequency amplifier 46 that is connected with digital signal processor (DSP) 43, and a buffer storage (buffer) 47.Digital signal processor 43 can carry out the action of decoding/encoding to data, and can control optical read/write head 32 data are written in the optical storage media 30, or by sense data in the optical storage media 30.Write fashionable carrying out data, digital signal processor 43 is the data formats that earlier received conversion of signals become to accord with optical storage media 30, again after the digital-to-analog conversion through digital/analog converter 44, drive optical read/write head 32 by radio frequency amplifier 46, data are written in the optical storage media 30.On the contrary, when optical read/write head 32 during, then be to be sent on the digital signal processor 43 via radio frequency amplifier 46 by optical storage media 30 sense datas, make digital signal processor 43 do further to do the action of decoding.47 of buffer storage are the working areas can be as digital signal processor 43 deal with data the time, utilize the setting of this buffer storage 47, promptly can keep the shock-proof effect of a period of time, if because external force vibration, then can continue therefore can not make user's perception data have the situation of interruption to take place by exporting the data of having decoded and having finished in the buffer storage 47.

Must it should be noted that, in fact, above-mentioned central processing unit 41, digital signal processor 43 etc. all are to be welded on the circuit board (figure does not show) to place a housing 101 of the present invention then, and control digital signal processor 43, radio frequency amplifier 46 of optical read/write head 32, servo motor or the like, can utilize for example OAK company manufacturing, model is that 0TI-9831,9832,9838 chipset are realized.Being familiar with this operator should understand, also can utilize system single chip (System On Chip, mode SOC) is integrated in above-mentioned each member in the one chip, this also is in the scope that present embodiment can be contained.

Therefore, when the user at outdoor application digital camera 20, and when the storage card in the digital camera 20 in itself or the digital camera 20 has stored up full DID, can utilize the present invention that the DID in the digital camera 20 is transcribed in optical storage media 30 or other storage card 40, so that discharge the memory space of digital camera 20, so that digital camera can be for further using.

And its operating procedure as shown in Figure 3, at first, confirm earlier digital camera 20 and the present invention interconnection line mutually, the mode of line can be to come directly to link to each other with cable by connectivity port 22,23, or by radio transmitting device 28 and phase interconnection line wirelessly, the storage card that perhaps directly digital camera 20 is stored DID is plugged in the connectivity port 22,23.

Shown in step 51, can be for utilizing if be equipped with optical storage media 30 among the present invention simultaneously with storage card 40, the user can utilize operating assembly 1 to select the Storage Media (for example be select optical storage media 30) desiring to transcribe, and the present invention is under the query pattern.Under this query pattern, central processing unit 41 can be shown in step 52, utilize optical read/write head 32 to read in the file system (file system) and its structure of optical storage media 30, confirm the active volume of optical storage media 30, but and confirm time writing position (NWA) of optical storage media 30 or the like, certainly, the related data of this active volume also can be presented on the display screen 12 via central processing unit 41 and watch, confirms for the user.

Certainly, if only insert optical storage media 30 or storage card 40 one of them, when just only inserting single Storage Media, the kind of the Storage Media that meeting then of the present invention detects the user is automatically inserted, and with it as default target Storage Media.

Then, shown in step 53, can show the indication that the user confirms on the display screen 12, and after the user confirms, promptly shown in step 54, the numerical digit view data in the digital camera 20 is transcribed in the optical storage media 30.

Must it should be noted that, because the file system of optical storage media 30 is different with memory or storage card 40 in the digital camera 20, therefore after processor need carry out the conversion of file system to DID, again with the DID burning in optical storage media 30.The file system of optical storage media 30 can be divided into ISO 9660, Juliet, Romeo or UDF or the like, for asking general on its applicability, so in the present embodiment, be with DID with the data format burning of ISO 9660 on optical storage media 30, in addition, the action of burning is to carry out in the mode of multi-region section (multi-section), so do not finish using as yet if finish the space a burning, then this optical storage media 30 can be for exercising usefulness next time again, to make full use of its capacity.

Therefore, utilize the present invention, even outdoor, also can utilize optical storage media 30 cheap, capacious to carry out the remote backup of DID, do not deal with a large amount of image takings and huge documentation so need not buy extra high price storage card 40, reach purpose of the present invention really.

Certainly, utilize above-mentioned identical mechanism, also can utilize the present invention that the view data of digital camera 20 is transcribed in the storage card 40 of other pattern, for example a digital camera 20 that is inserted with the CF card directly is connected with transmit port 24, another SD card is inserted on the connectivity port 22 again, also can adopts step identical among Fig. 3 that data are transcribed, different is, general storage card 40 all is the file system of adopting FAT, therefore need not make further filesystem conversion.

On the other hand, because digital signal processor 43 has possessed decoding function has been arranged, therefore if an optical storage media 30 that stores music is arranged (for example CD audio track, MP3) or image (for example MPEG-1, MPEG-2) is positioned in the reading assembly 2, after then being decoded by digital signal processor 43, again via the conversion of digital/analog converter 44, just can export music or image to extraneous, make the present invention also can serve as a carry-on CD/DVD player.

Claims

1. portable memory device, can the DID that a digital camera is captured transcribe in an optical storage media and a storage card and on one of them, it is characterized in that this portable memory device includes:

One operating assembly, for user operation with selected this optical storage media and this storage card one of them as a target Storage Media;

One reading assembly has a media conversion controller, a plurality of connectivity port that is connected on this media conversion controller and can this storage card of confession be connected, and a transmit port that can read this DID and be connected with this media conversion controller;

One processing components, has a central processing unit that is connected with this media conversion controller, and one be connected with this central processing unit and store the read-only memory of a plurality of computer program sign indicating numbers, this central processing unit can be subjected to the control of this operating assembly, and carries out this computer program sign indicating number this DID is treated to the data format that is compatible to this target Storage Media; And

One record component in order to ccontaining this optical storage media and this storage card, and can write in this target Storage Media through this processing modules process DID later.

2, portable memory device as claimed in claim 1, it is characterized in that: this reading assembly also comprises a radio transmitting device that is connected with this media conversion controller, and this radio transmitting device is that this digital camera is transferred to this DID on this media conversion controller with wireless mode.

3, portable memory device as claimed in claim 1, it is characterized in that: this processing components also has a digital signal processor that is connected with this central processing unit, one digital/analog converter that is connected with this digital signal processor and a radio frequency amplifier that is connected with this digital/analog converter, digital signal processor can carry out encoding and decoding to data, and this DID that this digital/analog converter can will come from after this digital signal processor processes is converted to analog signal, and this radio frequency amplifier can be amplified this analog signal.

4, portable memory device as claimed in claim 3 is characterized in that: this record component has an optical read/write head that driven by this radio frequency amplifier, this DID can be write in this optical storage media.

5, portable memory device as claimed in claim 3 is characterized in that: this processing components also has a buffer storage that is connected with this digital signal processor.

6, portable memory device as claimed in claim 1 is characterized in that: this reading assembly also has a transmit port controller that is connected between this transmit port and this media conversion controller, can control this transmit port and carry out transfer of data.

7, portable memory device as claimed in claim 1 is characterized in that: this transmit port is a USB transmit port.

8, portable memory device as claimed in claim 1 is characterized in that: this transmit port is an IEEE 1394 transmit pories.

9, portable memory device as claimed in claim 1, it is characterized in that: when the user only insert this storage card and this optical storage media one of them the time, this tupe can be set at this target Storage Media that this DID is desired to deposit in this Storage Media of being inserted automatically.