CN2689494Y - Mobile data memory and its receptacle - Google Patents
Mobile data memory and its receptacle Download PDFInfo
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- CN2689494Y CN2689494Y CN 200420005754 CN200420005754U CN2689494Y CN 2689494 Y CN2689494 Y CN 2689494Y CN 200420005754 CN200420005754 CN 200420005754 CN 200420005754 U CN200420005754 U CN 200420005754U CN 2689494 Y CN2689494 Y CN 2689494Y
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- interface
- data storage
- mobile data
- storage device
- circuit plate
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Abstract
The utility model discloses a mobile data storage device which comprises a casing, a first interface which adopts a first interface protocol and a storage circuit board which is arranged in the casing. The mobile data storage device also comprises a second interface which adopts a second interface protocol. The first interface and the second interface are electrically connected with the storage circuit board, and the first interface and the second interface extend from the both sides of the casing. The storage circuit board is communicated with an external device through the first interface and the second interface. The utility model can realize the functions of the flexible and convenient data storage, the date interaction and the date share.
Description
Technical field
The utility model relates to field of data storage, especially relates to a kind of mobile data storage device and deck.
Background technology
Development along with information technology, mobile storage to data has become more and more important, at present, the mobile data storage device can be divided into magnetic memory, photomagnetic memory and semiconductor memory three major types such as (Flash Memory) according to the kind of storage medium.
Magnetic memory comprises floppy disk and ZIP dish.Wherein, the capacity of floppy disk little (being generally 1.44M now), speed is slow, only is applicable to simple backup of small files and exchanges data.Though and the ZIP dish has bigger capacity, volume that it is bigger and more expensive price are very limited its scope of application.
The shortcoming of photomagnetic memory is that the speed of write data is slow and inconvenient, and the data of situation often revise to(for) needs is extremely impracticable.In addition, it needs extra driving arrangement support, and volume is bigger.
Therefore, semiconductor memory is developed rapidly, and it mainly comprises: adopt flash memory disk, the intelligence of USB interface to deposit the data storage card of card etc. and self defined interface and standard.Existing data storage card comprises CF (Compact Flash Card), SM (Smart Media Card), MMC (Multi Media Card), SD (Secure Digital), Memory Stick (memory stick) and Micro Drive (micro hard disk) etc.
Because every kind of semiconductor memory all has self specific data-interface, size, agreement, the scope of application is relative with function single, has limitation; And then make between the different equipment data sharing and become very complicated alternately.
For example, adopt the product data storage of standard USB interface to be mainly used in desktop computer, notebook computer etc.; And the data storage card of self defined interface and standard is applied to the embedded electronic product more, as digital camera, PDA etc.Prior art has to adopt card reader in order to carry out data sharing between computer and other electronic products, and carries out the conversion of data format when realizing exchanges data, thereby increases cost, expend time in, and influences read or write speed.
In addition, some embedded electronic product (as mobile phone, MP3 player etc.) adopts the internal USB interface to connect the mobile data storage device and realizes the mobile data storage, owing to defer to agreement of the same race with computer, therefore when data interaction, need not to carry out the conversion of data format.But because the embedded electronic product is generally battery supply set, its internal USB interface adopts the supply power mode of 3.3V, and the USB interface that existing mobile data storage device adopts is the USB interface of complete standard, is used for obtaining the 5V power supply from computer.Therefore, parameter such as the interface voltage of the existing mobile data storage device that can be applicable to computer and power consumption and do not meet the application demand of these embedded electronic products.
Summary of the invention
The technical problem that the utility model solves is to provide a kind of mobile data storage device, can realize flexible storage, mutual and sharing functionality between computer and electronic product.
Another technical problem that the utility model solves is to provide a kind of mobile data storage deck.
For this reason, the technical scheme of the utility model technical solution problem is: a kind of mobile data storage device is provided, comprises housing, first interface that adopts first interface protocol and the memory circuit plate that is positioned at enclosure interior; It is characterized in that: also comprise second interface that adopts second interface protocol; Described first interface and second interface are electrically connected the memory circuit plate and extend from the both sides of housing; Described memory circuit plate is communicated with external equipment by first interface, second interface.
Wherein, described first interface comprises USBDP interface and/or USB interface.
Wherein, described second interface comprises SD, MMC, IDE, SCSI, SM, CF, MS, MD and/or x-D interface.
Wherein, described second interface is the MMC interface, D+, the D-signal of the RCV of described MMC interface and DATA signal pins multiplexing USB.
Wherein, described memory circuit plate comprises Main Control Unit and memory storage unit, and described Main Control Unit links to each other with memory storage unit, first interface and second interface.
Wherein, described memory storage unit employing Flash Memory, FRAM, MRAM, DRAM, SDRAM, EEPROM, SRAM, EPROM or Millipede are as storage medium.
Wherein, described memory circuit plate has the indication oblique angle that puts in order of the second interface signal pin and the oblique angle that an auxiliary buffer length is provided for first interface.
Wherein, described housing is provided with the location division.
The utility model also provides a kind of mobile data storage deck, described deck coupling comprises deck bottom pin contact flat spring that cooperates second interface and the pin contact flat spring that cooperates first interface as each described mobile data storage device of claim 1 to 8.
With respect to prior art, the beneficial effects of the utility model are: at first, the memory circuit plate of the utility model mobile data storage device is electrically connected first interface and second interface of deferring to first interface protocol and second interface protocol respectively, makes can share the memory storage unit between the external equipment that adopts different agreement.Promptly after the mobile data storage device inserts external equipment, the memory circuit plate can be deferred to different agreements according to the interface features of external equipment and independently realize operation to the memory storage unit, in addition, the memory storage body is according to document storage mode, directly do not concern with the interface transmission means, thereby reach sharing the memory storage unit.Therefore, under the situation that adopts the utility model mobile data storage device, defer to interconnecting devicies such as no longer needing card reader between the external equipment of different agreement, also need not to change the external equipment design Storage, can realize data storage function freely and flexible carry out data interaction and share.Secondly, for the electronic product (as mobile phone, MP3 etc.) of computer that adopts standard USB interface and the self-defined USB interface of employing, first interface can adopt the USBDP interfacing of duplicate supply, perhaps at the second interface duplex USB interface signal, thereby realize flexible data interaction and sharing functionality between computer and the electronic product.
Description of drawings
Fig. 1 is the stereogram of the utility model mobile data storage device;
Fig. 2 is the structural representation of the utility model mobile data storage device;
Fig. 3 is the memory circuit plate schematic diagram of the utility model mobile data storage device first embodiment;
Fig. 4 is the upper shell schematic diagram of the utility model mobile data storage device first embodiment;
Fig. 5 is the lower house schematic diagram of the utility model mobile data storage device first embodiment;
Fig. 6 is the memory circuit plate schematic diagram of the utility model mobile data storage device second embodiment;
Fig. 7 is the upper shell schematic diagram of the utility model mobile data storage device second embodiment;
Fig. 8 is the stereogram of the utility model mobile data storage deck;
Fig. 9 is the pin shell fragment schematic diagram of the utility model mobile storage data deck.
Embodiment
The utility model mobile data storage device is used to realize the external equipment Mobile Storage Function MSF of (figure does not show), make can be flexible between the external equipment that adopts different interface type carry out data interaction and share.
Please refer to Fig. 1, described mobile data storage device 100 comprises housing 110, first interface 120, second interface 130 and the memory circuit plate 140 (referring to Fig. 2) that is positioned at housing 110 inside; Described first interface 120 and second interface 130 are electrically connected memory circuit plate 140 and extend from the both sides of housing 110, adopt first interface protocol and second interface protocol to set up the data channel of described device 100 and external equipment respectively; Described memory circuit plate 140 is according to the data access that realizes external equipment from the instruction of first interface 120 and second interface 130.
See also Fig. 2, described memory circuit plate 140 comprises Main Control Unit 141, memory storage unit 142.
The control core that described Main Control Unit 141 is mobile data storage devices 200, make to adopt the external equipment of different agreement can independent shared memory storage unit 142, need not the conversion of two kinds of agreements thereby the data interaction between the different external equipments is easy to carry out.Described Main Control Unit 141 links to each other with memory storage unit 142, first interface 120 and second interface 130, be used to control memory storage unit 142, first interface 120 and second interface 130, communicate with external equipment and memory storage unit 142 is carried out read-write operation.
Described Main Control Unit 141 comprises first interface controller 1411, second interface controller 1412 and memory storage controller 1413, is respectively applied for control first interface 120, second interface 130 and memory storage unit 142.Described first interface controller 1411, second interface controller 1412 and memory storage controller 1413 can adopt discrete device, also can be with wherein any two functions or three functions become one.
Described memory storage unit 142 can adopt Flash Memory, FRAM, MRAM, DRAM, SDRAM, EEPROM, SRAM, EPROM or Millipede as storage medium, is used to store data.The preferential FLASH that adopts the big capacity enable nand gate that Samsung produces, FLASH product that also can other companies.
For the ease of to further understanding of the present utility model, be that example is described with the mobile data storage device that has USB interface and MMC interface simultaneously below.
See also Fig. 3, described memory circuit plate 140 is electrically connected first interface 120 and second interface 130.Wherein, first interface 120 is USBDP (duplicate supply USB) interfaces, has 6 signal pins, and the definition of each signal pins sees Table 1.
The definition of the table 1 first interface signal pin
| Pin number | Title | Describe | |
| 1 | 3.3V | 3.3 | |
| 2 | VCC | The 5V power supply | |
| 3 | U- | Data-signal U- | |
| 4 | U+ | Data- | |
| 5 | | Ground | |
| 6 | 3.3V | 3.3V power supply |
As shown in Table 1, the USBDP interface can form by increase by two 3.3V signal pins on the basis of standard USB interface, considers to keep the interface size of prior USB own, increases the width of the suitable a slice 5V signal pins of width that two 3.3V signal pins sizes add up.Described first interface 120 can compatible computer standard USB interface, can be applied to Embedded USB Device by the 3.3V signal pins of two increases simultaneously.
It is the basis that described second interface 130 adopts the MMC interface size of standard and interface definition, defers to the MMC standard and the electrical specification of interface of standard, makes the utility model mobile data storage device 100 can be applied to adopt the external equipment of standard MMC interface.Its signal pins definition is as shown in table 2.
The definition of the table 2 second interface signal pin
| Pin number | Title | Describe | |
| 1 | RCV | Keep | |
| 2 | CMD | The | |
| 3 | | Ground | |
| 4 | VDD | | |
| 5 | CLK | The | |
| 6 | | Ground | |
| 7 | DATA | Data input, output |
See also table 3, among another embodiment of the present utility model, described second interface 130 can also carry out following improvement: with the D+ of USB, D-signal multiplexing in the RCV and the DATA signal pins of MMC interface, make the USB interface that can utilize the MMC interface duplex when being applied to Embedded USB Device realize, power supply is directly realized with the low power supply of MMC interface.
The definition of the table 3 second interface signal pin
| Pin number | Title | Describe | |
| 1 | RCV/D+ | Keep pin/ | |
| 2 | CMD | The | |
| 3 | | Ground | |
| 4 | VDD | | |
| 5 | CLK | The | |
| 6 | | Ground | |
| 7 | DATA/D- | The input of MMC data, output/usb data D- |
Described memory circuit plate 140 has oblique angle 143, and its size is to define according to mmc card is canonical sized, is used to indicate putting in order of 7 signal pins of MMC interface; Described memory circuit plate 140 also has the both sides symmetry and forms the oblique angle 144 of certain angle, is used to first interface 120 that an auxiliary buffer length is provided.Because first interface 120 can insert the USB interface of computer under many circumstances, and the facility in order to use, the front panel of many computer housings also is provided with the front panel USB interface, and USB interface usually is embedded in front panel, housing space of extra formation, if not as oblique angle 144, first interface 120 then probably can occur can not be inserted in the front panel USB interface fully, influences user's use.
Seeing also Fig. 4 and Fig. 5, is the structural representation of the utility model housing.Described housing 110 comprises upper shell 111 and lower house 112, forms the spatial accommodation of accommodating memory circuit plate 140 at upper shell 111 and lower house 112.
See also Fig. 4, the shape of described upper shell 111 and memory circuit plate 140 are complementary, and comprise outer rim 113 and the through hole 114 and 115 that is opened in both sides; Described outer rim 113 has certain thickness, is convenient to form spatial accommodation with lower house 112; Described through hole 114 is offered with reference to mmc card is canonical sized, and its number is 7, is used to make second interface 130 on the memory circuit plate 140 effectively to expose out after overall package is intact and forms complete MMC interface; The number of described through hole 115 is 1, is used to make first interface 120 on the memory circuit plate 140 effectively to expose out after overall package is intact and forms complete USBDP interface.
Certainly, upper shell 111 also can not be provided with outer rim, and this moment, lower house 112 had enough degree of depth to form spatial accommodation.
See also Fig. 5, the shape of described lower house 112 and upper shell 111 are roughly the same, and difference is that lower house 112 do not offer through hole, but are provided with location division 116.Described location division 116 can be hole clipping or projection, is used for realizing whole positioning function when described mobile data storage device 110 inserts corresponding deck, is understandable that its position can define according to selected deck.Certainly, described location division 116 also can be formed jointly by upper and lower casing 111 and 112, and its principle is similar, and this does not give unnecessary details.
Seeing also Fig. 6 and Fig. 7, is another embodiment of the utility model mobile data storage device.The structure of the device 100 of the structure of described mobile data storage device and first embodiment is roughly the same, difference is: described second interface 130 is SD interfaces, the SD interface size of employing standard and interface definition are the basis, defer to the SD standard and the electrical specification of interface of standard, make the utility model mobile data storage device can be applied to adopt the external equipment of standard SD/MMC interface.Its signal pins definition is as shown in table 4.
The definition of the table 4 second interface signal pin
| Pin number | Title | Describe | |
| 1 | DATA | Data input, | |
| 2 | CMD | The | |
| 3 | | Ground | |
| 4 | VDD | | |
| 5 | CLK | The | |
| 6 | | Ground | |
| 7 | DATA | Data input, output | |
| 8 | DATA | Data input, | |
| 9 | DATA | Data input, output |
Corresponding therewith, also the adjusting of the through hole 114 that upper shell 111 is offered is used to make second interface 130 on the memory circuit plate 140 effectively to expose out after overall package is intact and forms complete SD interface.
The utility model mobile data storage device can be common between the computer and other electronic products that adopts USB interface and other self defined interfaces such as SD, MMC, realizes flexible storage and exchange.
In addition, the utility model also provides a kind of mobile data storage deck, and described deck can be arranged at external equipment, uses the utility model mobile data storage device to carry out storage and mutual thereby be convenient to external equipment more.
See also Fig. 8 and Fig. 9, it is basic size that described mobile data storage deck 300 adopts the MMC/SD deck of standard, comprise the MMC/SD deck bottom pin contact flat spring 320 of the standard that cooperates second interface 130 and the pin contact flat spring 310 of first interface 120 that cooperates the mobile data storage device, described deck 300 has the function of the MMC/SD card of insertion standard also can insert the utility model mobile data storage device simultaneously.
Certainly, mobile data storage device of the present invention can also have some variations, as according to actual needs, the number of interface is not limited to two, described second interface also not necessarily is confined to the SD/MMC interface unit, can adopt any appropriate interface mode, as IDE, SCSI, SM, CF, MS, MD and/or x-D interface.
The above only is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (9)
1, a kind of mobile data storage device comprises housing, first interface that adopts first interface protocol and the memory circuit plate that is positioned at enclosure interior; It is characterized in that: also comprise second interface that adopts second interface protocol; Described first interface and second interface are electrically connected the memory circuit plate and extend from the both sides of housing; Described memory circuit plate is communicated with external equipment by first interface, second interface.
2, mobile data storage device as claimed in claim 1 is characterized in that: described first interface comprises USBDP interface and/or USB interface.
3, mobile data storage device as claimed in claim 1 is characterized in that: described second interface comprises SD, MMC, IDE, SCSI, SM, CF, MS, MD and/or x-D interface.
4, mobile data storage device as claimed in claim 1 is characterized in that: described second interface is the MMC interface, D+, the D-signal of the RCV of described MMC interface and DATA signal pins multiplexing USB.
5, as each described mobile data storage device of claim 1 to 4, it is characterized in that: described memory circuit plate comprises Main Control Unit and memory storage unit, and described Main Control Unit links to each other with memory storage unit, first interface and second interface.
6, mobile data storage device as claimed in claim 5 is characterized in that: described memory storage unit adopts Flash Memory, FRAM, MRAM, DRAM, SDRAM, EEPROM, SRAM, EPROM or Millipede as storage medium.
7, mobile data storage device as claimed in claim 1 is characterized in that: described memory circuit plate has the indication oblique angle that puts in order of the second interface signal pin and the oblique angle that an auxiliary buffer length is provided for first interface.
8, mobile data storage device as claimed in claim 1, it is characterized in that: described housing is provided with the location division.
9, a kind of mobile data storage deck is characterized in that: described deck coupling comprises deck bottom pin contact flat spring that cooperates second interface and the pin contact flat spring that cooperates first interface as each described mobile data storage device of claim 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420005754 CN2689494Y (en) | 2004-03-04 | 2004-03-04 | Mobile data memory and its receptacle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420005754 CN2689494Y (en) | 2004-03-04 | 2004-03-04 | Mobile data memory and its receptacle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2689494Y true CN2689494Y (en) | 2005-03-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420005754 Expired - Lifetime CN2689494Y (en) | 2004-03-04 | 2004-03-04 | Mobile data memory and its receptacle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2689494Y (en) |
-
2004
- 2004-03-04 CN CN 200420005754 patent/CN2689494Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C32 | Full or partial invalidation of patent right | ||
| IP01 | Partial invalidation of patent right |
Decision date of declaring invalidation: 20061225 Decision number of declaring invalidation: 9341 Case number: W507963 Conclusion of examination: Part 200420005754.8 of the patent for utility model was declared invalid. Decision date: 20061225 Denomination of utility model: Mobile data memory and its receptacle Granted publication date: 20050330 Patentee: Lenovo (Beijing) Co., Ltd. Review decision number: 9341 |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140304 Granted publication date: 20050330 |