CN2526905Y - Storage drive compatible with multiple mobile storage card - Google Patents
Storage drive compatible with multiple mobile storage card Download PDFInfo
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- CN2526905Y CN2526905Y CN 02202492 CN02202492U CN2526905Y CN 2526905 Y CN2526905 Y CN 2526905Y CN 02202492 CN02202492 CN 02202492 CN 02202492 U CN02202492 U CN 02202492U CN 2526905 Y CN2526905 Y CN 2526905Y
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- mobile memory
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- usb interface
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Abstract
A storage driving device which is compatible with a plurality of mobile storage cards, comprises at least a flash memory unit used for data storage, a USB interface unit used for connecting an external USB equipment, a controlling unit used for data connection, reading and writing and connection with communication operation that is used for controlling the USB interface unit, a power unit used for getting power from the USB interface and releasing the power to the storage driving device, a mobile storage card connection unit used for connecting the mobile storage card and the controlling unit and controlling the data reading and writing of the mobile storage card. The utility model of the storage device adopts the flash memory device as a storage medium and meanwhile has the interfaces and USB interfaces which can be compatible with a plurality of mobile storage cards so as to realize data storage and exchange among computers and between the computers and consumer electronic products and process data reading and writing for other storage devices which take the flash memory device as the storage medium, thus realizing the expansion of storage capacity.
Description
Technical field:
The utility model relates to the device of the flash drive of the multiple mobile memory card of a kind of compatibility, the device that particularly a kind ofly be used between the computer, computer and consumer electronics product carries out data storage and exchange and compatible multiple mobile memory card.
Background technology:
Since PC was come out, the external memory storage that it adopts was a disk always.Flexible plastic disc is as a kind of medium of being convenient to carry out exchanges data between different computers, and its memory capacity goes so far as the 1.44M byte of still using now from initial 512K byte (Byte), 1.2M byte.Along with development of computer, a large amount of figures, audio, video data need storage and exchange on PC.By contrast, the flexible plastic disc of 1.44M byte can't be competent at present needs already on memory capacity.Secondly, floppy disk is as a kind of storer of magnetic medium, and the floppy disk that read-write need have the mechanical action cooperation carries out, so its speed is very slow, and energy consumption is very high, and reliability is also relatively poor relatively.
Except using flexible plastic disc, also have some other equipment can be used for the storage of mobile data now, for example: removable hard disk, MO, CD-RW, ZIP dish etc.; But these equipment each have different shortcomings: removable hard disk damages easily, and ZIP dish, MO, CD-RW etc. all need extra driving arrangement support, and volume is bigger, and price is also somewhat expensive.
Along with the appearance of flash memory (Flash) medium, as the medium that a kind of volume is little, in light weight, portable, safe, reliable, cost performance is high, it has represented a kind of main developing direction of memory device.
The Flash memory device mainly comprises various Flash mobile memory cards (for example: compact flash (CompactFlash card), small intelligent medium memory card (SmartMedia card), multimedia card (Multimedia Card), safe digital card (Secure Digital Card), memory stick (MemoryStick) etc.).
The volume of Flash card is small and exquisite, and memory capacity is big, is widely used on the consumer electronics products such as digital camera, MP3 player, digital camera, as the storage medium of consumer electronics product.But the Flash card can not be directly and the computer swap data, need and special software is installed finish exchanges data by the connecting line between consumer electronics product and the computer; Perhaps, come and the computer swap data by special card reader.Usually with the data exchange interface of USB (universal serial bus) (Universal Serial Bus, be called for short USB) interface as itself and computer equipment, it has the deck of one or more Flash cards to existing card reader, can read and write corresponding Flash card; Its shortcoming is: it does not have built-in Flash device, and only actually is an interface, can not directly use as memory device; And this card reader can not compatible all Flash cards.
The structure of Flash movable storage device is USB interface+FLASH memory device normally, is called the mobile electron hard disk.The mobile electron hard disk has portable, reliable, the advantage such as capacity is big of Flash, need not driver, can be directly USB interface and computer swap data by computer.But its shortcoming is: in a single day the mobile electron hard disk is produced, and its memory capacity just can not be expanded; Can not read and write the Flash card that is all the Flash memory device.
Summary of the invention:
Fundamental purpose of the present utility model is to provide the storing driver device of the multiple mobile memory card of a kind of compatibility, the memory storage that with the flush memory device is storage medium has the interface and the USB interface of compatible multiple mobile memory card simultaneously, can realize between the computer easily, carry out data storage and exchange between computer and the consumer electronics product.
Another purpose of the present utility model is to provide the storing driver device of the multiple mobile memory card of a kind of compatibility, makes that this memory storage can be that the memory storage of storage medium carries out read-write operation with the flush memory device to other, realizes expansion of storage capacity.
The purpose of this utility model is achieved in that
The storing driver device of the multiple mobile memory card of a kind of compatibility comprises at least: the flash cell that is used to store data; Be used to connect the usb interface unit of external USB equipment; Be used to connect flash cell and read and write data, and connect the control module that the control usb interface unit carries out communication operation; Be used for obtaining power supply from USB interface, and to the power supply unit of this storing driver device power supply; The mobile memory card linkage unit that is used for mobile memory card is connected with control module and mobile memory card is read and write by control module.
Described storing driver device also is provided with the read-write control circuit that is used to prevent the mistake deleted data, and this read-write control circuit is connected with the mobile memory card linkage unit with control module, provides mistake to delete control signal.
Described control module comprises at least: central processing unit and USB interface control module; This central processing unit is connected with usb interface unit by the USB interface control module, and by USB interface control module and usb interface unit and external USB device talk; This central processing unit also is connected with the mobile memory card linkage unit with address signal by its data-signal, and by the read-write of this mobile memory card linkage unit control to mobile memory card.
Described mobile memory card comprises at least: CompactFlash, SmartMedia, MultimediaCard, Secure Digital Card, Memory Stick.
Described mobile memory card linkage unit is provided with one or more, is used to connect the mobile storage card connector of CompactFlash or SmartMedia or Multimedia Card or Secure Digital Card or Memory Stick card.
Described external USB equipment is computing machine or the computer peripheral with USB interface.
The device of the flash drive of the compatible multiple mobile memory card that the utility model provides, with the flush memory device is the memory storage of storage medium, the interface and the USB interface that have compatible multiple mobile memory card simultaneously can realize between the computer easily, carry out data storage and exchange between computer and the consumer electronics product; And make that this memory storage can be that the memory storage of storage medium carries out read-write operation with the flush memory device to other, has realized expansion of storage capacity.
Below in conjunction with drawings and Examples the utility model is described in further detail:
Description of drawings:
Fig. 1 is a logical organization synoptic diagram of the present utility model;
Fig. 2 is USB interface and the governor circuit schematic diagram of the utility model one embodiment;
Fig. 3 is the interface circuit of the compatible multiple mobile memory card of the utility model one embodiment;
Fig. 4 is the flash cell control circuit schematic diagram of the utility model one embodiment;
Fig. 5 is the flash cell circuit theory diagrams of the utility model one embodiment.
Embodiment:
Referring to Fig. 1, the utility model comprises: be used to store data, and the flash cell that constitutes by flash chip, mobile storage card connector, power module, USB interface control module, central processing unit, read-write control circuit, USB slot etc.
Read-write control circuit can be made up of write-protect switch and the circuit that is attached thereto; Write-protect switch adopts the single-pole double-throw (SPDT) toggle switch, and its output is connected with an input/output signal line of control module; By stirring the slide block of stirring on the write-protect switch, can realize the two states that circuit connects from hardware; This two states is corresponding to " read-only " or " read-write " state of storer, and this state sends to by the control module collection and by USB interface and (for example: computing machine) is attached thereto the external USB equipment that connects.
Power module can be made of DC/DC conversion and mu balanced circuit, and the power pins that its power input is connected on the USB interface obtains+5V voltage, provides supply of electrical energy by DC/DC conversion and mu balanced circuit to whole device then.
The mobile memory card linkage unit is provided with the mobile storage card connector that can connect the mobile memory card that comprises CompactFlash, SmartMedia, Multimedia Card, Secure Digital Card, Memory Stick; Generally, the SM card uses an independent connector, CompactFlash card and the shared same connector of IBM MicroDrive (or using different connectors respectively), mmc card and the shared same connector of SD card (or using different connectors respectively), the MS card uses an independent connector.
Control module comprises at least: central processing unit and USB interface control module; This central processing unit is connected with usb interface unit by the USB interface control module, and by USB interface control module and usb interface unit and external USB device talk.
Central processing unit also is connected with the mobile memory card linkage unit with address signal by its data-signal, and by the read-write of this mobile memory card linkage unit control to mobile memory card.
Referring to Fig. 2,3, USB interface among the embodiment of the present utility model and governor circuit are provided with main control unit U1 and USB interface J12, and data transfer signal USB+, the USB-on this USB interface J12 is connected respectively to usb signal output terminal DMINUS, the DPLUS of main control unit U1; Main control unit U1 data-signal FDD00-FDD23 and address signal FDA0-FDA4 are connected respectively on mobile storage card connection slot J1, the J2, when the corresponding mobile storage card inserted this mobile storage card connection slot J1, J2, each data-signal of mobile memory card and address signal then were connected to main control unit U1 by this slot J1, J2.Main control unit U1 sends address signal and data-signal by this data-signal FDD00-FDD23 and address signal FDA0-FDA4 to the corresponding mobile storage card.Each read-write control signal FIORD0, FIORD1 of main control unit U1, FIOWR0, FIOWR1 also are connected with the corresponding signal of this mobile storage card connection slot J1, J2 simultaneously, are used for sending read-write to this mobile storage card connection slot J1, J2.
Referring to Fig. 2, Fig. 4, Fig. 5, the data-signal FDD00-FDD07 of main control unit U1 and address signal FDA3-FDA4, read-write control signal FIORD1, FIOWR1 etc. are connected to signal latch unit U6, U9 respectively; Latch output signal FLASHD0-FLASHD7, the FLASH_CLE of this signal latch unit U6, U9, FLASH_ALE etc. are connected to flash cell U2, and main control unit U1 is by the read-write operation of this signal controlling to flash cell U2.
Connect by above-mentioned difference, the utility model has realized with the flush memory device being the memory storage of storage medium, the interface and the USB interface that have compatible multiple mobile memory card simultaneously can realize between the computer easily, carry out data storage and exchange between computer and the consumer electronics product; And make that this memory storage can be that the memory storage of storage medium carries out read-write operation with the flush memory device to other, has realized expansion of storage capacity.
Claims (6)
1, the storing driver device of the multiple mobile memory card of a kind of compatibility comprises: the flash cell that is used to store data at least; Be used to connect the usb interface unit of external USB equipment; Be used to connect flash cell and read and write data, and connect the control module that the control usb interface unit carries out communication operation; Be used for obtaining power supply from USB interface, and to the power supply unit of this storing driver device power supply; It is characterized in that: it also comprises the mobile memory card linkage unit that is used for mobile memory card is connected with control module and mobile memory card is read and write by control module.
2, the storing driver device of the multiple mobile memory card of compatibility according to claim 1, it is characterized in that: described storing driver device also is provided with the read-write control circuit that is used to prevent the mistake deleted data, this read-write control circuit is connected with the mobile memory card linkage unit with control module, provides mistake to delete control signal.
3, the storing driver device of the multiple mobile memory card of compatibility according to claim 1, it is characterized in that: described control module comprises at least: central processing unit and USB interface control module; This central processing unit is connected with usb interface unit by the USB interface control module, and by USB interface control module and usb interface unit and external USB device talk; This central processing unit also is connected with the mobile memory card linkage unit with address signal by its data-signal, and by the read-write of this mobile memory card linkage unit control to mobile memory card.
4, according to the storing driver device of claim 1 or the multiple mobile memory card of 3 described compatibilities, it is characterized in that: described mobile memory card comprises at least: CompactFlash, SmartMedia, MultimediaCard, Secure Digital Card, Memory Stick.
5, according to the storing driver device of claim 1 or the multiple mobile memory card of 3 described compatibilities, it is characterized in that: described mobile memory card linkage unit is provided with one or more, is used to connect the mobile storage card connector of CompactFlash or SmartMedia or Multimedia Card or Secure Digital Card or Memory Stick card.
6, the storing driver device of the multiple mobile memory card of compatibility according to claim 1 is characterized in that: described external USB equipment is computing machine or the computer peripheral with USB interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02202492 CN2526905Y (en) | 2002-01-30 | 2002-01-30 | Storage drive compatible with multiple mobile storage card |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02202492 CN2526905Y (en) | 2002-01-30 | 2002-01-30 | Storage drive compatible with multiple mobile storage card |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2526905Y true CN2526905Y (en) | 2002-12-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02202492 Expired - Fee Related CN2526905Y (en) | 2002-01-30 | 2002-01-30 | Storage drive compatible with multiple mobile storage card |
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| Country | Link |
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| CN (1) | CN2526905Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1331068C (en) * | 2005-02-04 | 2007-08-08 | 威盛电子股份有限公司 | Method and its device for driving flash memory |
| CN100409163C (en) * | 2003-05-28 | 2008-08-06 | 株式会社瑞萨科技 | Data processing device and mobile device |
| CN116955241A (en) * | 2023-09-21 | 2023-10-27 | 杭州智灵瞳人工智能有限公司 | Memory chip compatible with multiple types of memory media |
-
2002
- 2002-01-30 CN CN 02202492 patent/CN2526905Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100409163C (en) * | 2003-05-28 | 2008-08-06 | 株式会社瑞萨科技 | Data processing device and mobile device |
| CN1331068C (en) * | 2005-02-04 | 2007-08-08 | 威盛电子股份有限公司 | Method and its device for driving flash memory |
| CN116955241A (en) * | 2023-09-21 | 2023-10-27 | 杭州智灵瞳人工智能有限公司 | Memory chip compatible with multiple types of memory media |
| CN116955241B (en) * | 2023-09-21 | 2024-01-05 | 杭州智灵瞳人工智能有限公司 | Memory chip compatible with multiple types of memory media |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |