CN2854695Y - Mobile storage device with storage and card reading function - Google Patents
Mobile storage device with storage and card reading function Download PDFInfo
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- CN2854695Y CN2854695Y CN 200520109130 CN200520109130U CN2854695Y CN 2854695 Y CN2854695 Y CN 2854695Y CN 200520109130 CN200520109130 CN 200520109130 CN 200520109130 U CN200520109130 U CN 200520109130U CN 2854695 Y CN2854695 Y CN 2854695Y
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Abstract
The invention discloses a mobile storage device provided with storage and card reading function, which can meet various user requirements and optimize usage.The mobile storage device comprises a mass storage unit; a memory card supporter; a controller portion connected to said mass storage unit and said memory card supporter and used for controlling the reading and storage of data;a detection circuit for detecting whether the memory card is inserted into the memory card supporter and sequentially outputting switch signals;a circuit switching portion for switching between said mass storage unit, said memory card supporter and external data transmission channels in response to said switch signals;a host interface for establishing a data channel therefrom to a host. The utility model realizes high-capacity and portable storage with USB interface, and enables, in automatic switching mode, USB card reading function.
Description
Technical field
The utility model relates to data storage technology, particularly relates to the flash memory device with storage and functions of card reader, belongs to the mobile data field of storage.
Background technology
In recent years, along with extensively popularizing of computer utility, data storage and exchange become more and more frequent, various device all will carry out the lot of data exchange, traditional data storage technology can not comprehensively be satisfied the demand, and therefore, the mobile storage technology produces thereupon and obtained unprecedented popularization.Emerge in an endless stream especially based on USB interface technology flash memory device, popularize the widest USB flash drive that mainly contains, MP3 portable hard drive or the like is mainly used in computing machine.Also occur various storage card that possesses standard alone such as CF (Compact Flash Card), MMC (Multi Media Card), SD (Secure Digital) etc. in addition, be mainly used in embedded digital product.As main storage medium, advantage is characteristics such as volume is little, and shock resistance is strong with semiconductor FALSH for USB flash drive and various storage card: shortcoming is that above 1G memory capacity, price is relatively very high.As storage medium, advantage is that capacity is big to portable hard drive, with characteristics such as the capacity price are lower with disk sheet; Shortcoming is, volume is big, and shock resistance is poor, and steady operation need additionally add power supply in addition, and is heavier, is not portable therefore.
Because above-mentioned flash memory device respectively has relative merits, now, so that a lot of existing USB flash drive of user, storage card (also may comprise card reader) is arranged again, also have portable hard drive.The user not only pays a no small expense for it, and every kind of memory storage does not have association mutually simultaneously.Deposit or all existence inconvenience greatly of mutual use.In addition, increase with the mobile storage data volume, the restriction of USB flash drive capacity in addition, the user is faced with continuous replacing larger capacity USB flash drive situation, and the shock resistance of portable hard drive is poor, and volume is big, heavier relatively, and be not to be easy to carry about with one, although also have simple memory card reader to support nearly more than ten kind of storage card read-write capability, most of users can be fully utilized.If a kind of technology and the above problem of the effective and reasonable solution of device energy can be arranged, can bring bigger facility to the user undoubtedly, and realize satisfying user's multiple function needs by this kind technology and method, can optimize the flash memory device that the user uses again.That will well promote the development of mobile storage industry undoubtedly, does not retrieve the pertinent literature that can effectively solve above-mentioned technical deficiency at present as yet.
The utility model content
At the deficiencies in the prior art, the technical problems to be solved in the utility model is flash memory device and the method that has proposed to have storage and functions of card reader.The utility model is under the prerequisite of summing up present mobile storage main body developing direction, particularly under the condition of micro harddisk development of new techniques, make full use of advantage that micro harddisk possesses USB flash drive and portable hard drive and abandoned simultaneously the characteristics of both deficiencies again, realize the portable storage of high capacity of USB interface, realized the function of USB interface card reader simultaneously by the working method that automaticallyes switch.
Therefore, aspect one of the present utility model, proposed a kind of flash memory device, having comprised: mass storage unit; The storage card deck; The controller part is connected with described storage card deck with described mass storage unit, is used to carry out data write and storage; Testing circuit is used for detecting described storage card deck and whether is inserted with storage card, thus the output switching signal; The circuit switching part is used for according to described switching signal, and the switching with the data transmission channel of outside of described mass storage unit and storage card deck is provided; Host interface, be used to set up and main frame between data channel.
With respect to prior art, the beneficial effects of the utility model are: at first, the flash memory device that the utlity model has storage and functions of card reader adopts micro harddisk as storage medium, substitutes the FLASH storage medium, and volume is less, weight is lighter, be easy to carry, realize high capacity (capacity reaches 5G), more abundant usage space is provided, satisfy the requirement of following high data volume, and realize high cost performance.Secondly, the utility model adopts automatic switch-over circuit, and the working method by automaticallying switch, and the support computing machine reads cards such as MMC/SD, realizes the data transfer of digital equipment data to computing machine.
Description of drawings
Fig. 1 is the circuit block diagram that the utlity model has the flash memory device of storage and functions of card reader;
Fig. 2 is the process flow diagram that the utlity model has the mobile memory method of storage and functions of card reader;
Fig. 3 is the block scheme that the utlity model has flash memory device first embodiment of storage and functions of card reader;
Fig. 4 is the synoptic diagram that Fig. 3 has flash memory device first embodiment of storage and functions of card reader;
Fig. 5 is the circuit diagram that Fig. 3 has a kind of testing circuit of the storage and the flash memory device of functions of card reader;
Fig. 6 is the circuit diagram that Fig. 3 has the another kind of testing circuit of the storage and the flash memory device of functions of card reader.
Fig. 7 is the flash memory device workflow diagram that Fig. 3 has storage and functions of card reader.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described in detail.
Fig. 1 is the circuit block diagram that the utlity model has the flash memory device of storage and functions of card reader.In the utility model, adopt Automatic Detection and Control to realize the characteristics that miniature portable mass memory and functions of card reader independently use as required, thereby guarantee the interface transmission speed.As shown in Figure 1, the flash memory device with storage and functions of card reader of the present utility model comprises controller part 1, circuit switching part 2, host interface 3, testing circuit 4, mass storage unit 6, storage card deck 5.
Fig. 2 shows the process flow diagram with mobile memory method of storage and functions of card reader of the present utility model.
At first the step of Zhi Hanging is S1, and memory storage of the present utility model inserts external host, powers on and carries out initialization.At step S2, whether the detection of stored card exists, and to confirm the proper operation mode, finishes the testing mode.At step S3,, realize the foundation of main frame with data channel between the utility model memory storage according to selecting signal circuit switching part 2 to switch to mass memory mode or storage mode.At step S4, main frame can carry out the mutual of control information and external unit information, finishes information interaction.Behind the step S4, enter data interaction waiting step S5, if do not have data interaction then wait always, up to main frame reading and writing data requirement again, main frame will carry out data write and storage to memory storage of the present utility model, behind the completing steps S5, enter step S6, return step S2, and carry out the circulation of above-mentioned steps.
Fig. 3 shows the block scheme with flash memory device first embodiment of storage and functions of card reader of the present utility model.
Of the present utility model have the controller part 1 that comprises in the storage and the flash memory device of functions of card reader and be made up of circuit chip OTI2118 and circuit chip OTI2153; Circuit switching part 2 mainly is made up of AMC3526 and WJD midget relay; Host interface 3 adopts the USB interface of standard; Testing circuit 4 is by Photoelectric Detection or adopt the button commutation circuit to realize; Mass storage unit 6 adopts 1 cun micro harddisk; Storage card deck 5 adopts the two-in-one deck of SD/MMC.
Circuit chip OTI2118 is the controller of a kind of USB2.0 of support agreement, ATA agreement, CF interface protocol, can be good at realizing exchanges data and the storage of USB interface, thereby make flash memory device of the present utility model have the characteristic of mass memory to mass storage unit.
Circuit chip OTI2153 is the controller of a kind of USB2.0 agreement, SD agreement, MMC agreement, can directly carry out data write to SD card, mmc card, realize data interaction operation and the storage of USB interface, thereby make flash memory device of the present utility model have the characteristic of card reader to storage card.
AMC3526 is controlled optional two-way power supply pio chip, in different mode of operations, provides wherein one road power supply output respectively.
WJD midget relay volume is little, adopts the switching mode of dpdt double-pole double-throw (DPDT) to realize switching to the USB interface signal, with and set up the signalling channel of different working modes.
1 cun micro harddisk is a kind of small hard disk, and volume is 36 * 42 * 5.5mm, and capacity is 5GB, can carry out mass memory, file read-write speed is fast, and its overall power is lower than 200mA, so that only adopt the USB interface power supply to get final product, needn't use as traditional portable hard drive must additional power source.
The two-in-one deck of SD/MMC is supported the SD card of standard and the insertion of mmc card, has adopted PUSH TOPUASH structure, and the user only need push away storage card again when extracting storage card after, storage card can eject automatically, is user-friendly to.
Examine Fig. 4 and be the schematic appearance of flash memory device shown in Figure 3.
Comprise on the flash memory device structure of the present utility model: rotatable USB joint 40, rotary part insertion end 41, micro harddisk 42, micro harddisk pilot lamp 43, storage card pilot lamp 44, SD/MMC deck 45, circuit part and shell 46.Rotatable USB joint 40 can freely insert rotary part insertion end 41, is easy to carry.Micro harddisk pilot lamp 43 and storage card pilot lamp 44 are used to indicate current state of working.
Fig. 5 and Fig. 6 are respectively the circuit diagrams of a kind of and another kind of testing circuit of flash memory device of the present utility model shown in Figure 3.The testing circuit part mainly finishes detection and the output control signal offers commutation circuit.
A kind of testing circuit adopts the principle of work of photoelectricity correlation, entire circuit needs four elements, wherein infrared transmitting tube and infrared receiving tube are placed in the top and the bottom of SD/MMC deck respectively, when storage card inserts, infrared receiving tube can not receive infrared signal, be in closed condition, change detection signal S is a low level, expression works in the card reader pattern, after extracting storage card, infrared receiving tube can receive infrared signal, is in opening state, change detection signal S is a high level, and expression works in the mass memory pattern.
Another testing circuit adopts the press down of button and the principle of work of press up, and entire circuit needs two elements, and when button was press up, change detection signal S was a low level, and expression works in the card reader pattern; When button was press down, change detection signal S was a high level, and expression works in the mass memory pattern.
Fig. 7 is the workflow diagram of flash memory device of the present utility model shown in Figure 3.
When flash memory device of the present utility model inserts the computing machine USB interface, at first power on, and carry out initialization, whether there is storage card to carry out the switching selection of mode of operation by detecting the SD/MMC draw-in groove, when being the card reader pattern, main frame can carry out data write and storage to the storage card that insert the outside, turns back to the waiting status of storing card data after operation is finished again, in order to next time to the operation of storage card; When being the magnanimity pattern, main frame can directly be read micro harddisk and carry out data write and storage operation, and operation turns back to the waiting status of micro harddisk data after finishing again, in order to next time to the operation of micro harddisk.Whether insertion equipment is determined mode of operation by the detection of stored card to have the storage and the flash memory device overall workflow of functions of card reader, the read-write storage operation of the line data of going forward side by side.The user can realize that also the switching of mode of operation realizes that mass memory uses or reading and writing memory card uses by the mode of button.
It should be noted last that: above embodiment only is illustrative rather than definitive thereof the technical solution of the utility model, although the utility model is had been described in detail with reference to the foregoing description, those of ordinary skill in the art is to be understood that: still can make amendment or be equal to replacement the utility model, and not breaking away from any modification or partial replacement of spirit and scope of the present utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (9)
1, have the flash memory device of storage and functions of card reader, comprising:
Mass storage unit;
The storage card deck;
It is characterized in that described flash memory device also comprises:
The controller part is connected with described storage card deck with described mass storage unit, is used to carry out data write and storage;
Testing circuit is used for detecting described storage card deck and whether is inserted with storage card, thus the output switching signal;
The circuit switching part is used for according to described switching signal, and the switching with the data transmission channel of outside of described mass storage unit and storage card deck is provided;
Host interface, be used to set up and main frame between data channel.
2, the flash memory device with storage and functions of card reader as claimed in claim 1 is characterized in that described controller partly comprises:
First controller is supported mass storage protocol and control, directly is connected with described mass storage unit; And
Second controller is supported the storage card agreement, directly is connected with described storage card deck.
3, the flash memory device with storage and functions of card reader as claimed in claim 2 is characterized in that, described storage card deck is supported PUSH TO PUSH and All-in-One function.
4, the flash memory device with storage and functions of card reader as claimed in claim 2 is characterized in that described mass storage unit comprises micro hard disk.
5, as claimed in claim 2 have the storage and a flash memory device of functions of card reader, it is characterized in that, described storage card comprise CF, SM, MMC, SD, MS and xD card one of at least.
6, the flash memory device with storage and functions of card reader as claimed in claim 2 is characterized in that described circuit switching part also comprises:
Power module is supported the output of one road power supply input two-way power supply, power supply is offered first controller or second controller.
7, the flash memory device with storage and functions of card reader as claimed in claim 1 is characterized in that described host interface is a USB interface.
8, as claimed in claim 1 have the storage and a flash memory device of functions of card reader, it is characterized in that, described testing circuit comprises the top that is placed in the storage card deck respectively and the infrared transmitting tube and the infrared receiving tube of bottom.
9, the flash memory device with storage and functions of card reader as claimed in claim 1 is characterized in that described testing circuit is made of single button.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520109130 CN2854695Y (en) | 2005-06-22 | 2005-06-22 | Mobile storage device with storage and card reading function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520109130 CN2854695Y (en) | 2005-06-22 | 2005-06-22 | Mobile storage device with storage and card reading function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2854695Y true CN2854695Y (en) | 2007-01-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520109130 Expired - Fee Related CN2854695Y (en) | 2005-06-22 | 2005-06-22 | Mobile storage device with storage and card reading function |
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| CN (1) | CN2854695Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101251831B (en) * | 2008-04-16 | 2010-10-13 | 普天信息技术研究院有限公司 | Mobile memory supporting master-salve equipment interchange and method of master-salve equipment interchange |
| WO2012040982A1 (en) * | 2010-09-28 | 2012-04-05 | 中兴通讯股份有限公司 | Secondary development method and development system of hand-held reader |
| TWI401571B (en) * | 2009-07-10 | 2013-07-11 | Universal Scient Ind Shanghai | An external power supply device and the method thereof |
| CN103971748A (en) * | 2013-02-05 | 2014-08-06 | 厦门雅迅网络股份有限公司 | Memory card detection circuit and method |
-
2005
- 2005-06-22 CN CN 200520109130 patent/CN2854695Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101251831B (en) * | 2008-04-16 | 2010-10-13 | 普天信息技术研究院有限公司 | Mobile memory supporting master-salve equipment interchange and method of master-salve equipment interchange |
| TWI401571B (en) * | 2009-07-10 | 2013-07-11 | Universal Scient Ind Shanghai | An external power supply device and the method thereof |
| WO2012040982A1 (en) * | 2010-09-28 | 2012-04-05 | 中兴通讯股份有限公司 | Secondary development method and development system of hand-held reader |
| CN103971748A (en) * | 2013-02-05 | 2014-08-06 | 厦门雅迅网络股份有限公司 | Memory card detection circuit and method |
| CN103971748B (en) * | 2013-02-05 | 2018-08-24 | 厦门雅迅网络股份有限公司 | A kind of memory card detection circuitry and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070103 Termination date: 20140622 |
|
| EXPY | Termination of patent right or utility model |