CN2476849Y

CN2476849Y - Outconnected-type USB 2.0 interface flash storage card reader

Info

Publication number: CN2476849Y
Application number: CN 01224037
Authority: CN
Inventors: 谢荣原; 陈彦安; 张嘉麟; 蔡桢和
Original assignee: Datafab Systems Inc
Current assignee: Datafab Systems Inc
Priority date: 2001-05-21
Filing date: 2001-05-21
Publication date: 2002-02-13
Anticipated expiration: 2011-05-21

Abstract

The utility model discloses a card reader of an external USB 2.0 interface flash memory card applying to the computer USB specification, mainly comprising: a cartridge shell, a USB 2.0 connector(or connecting line) and a data transmission circuit in the cartridge shell. One end of the cartridge is provided with a flash bank socket, and such an external bank as the solid flash memory cards(including hard disk cards) etc. can be inserted into the cartridge shell. The data in the memory cards(including hard disk cards) undergo a transmission of high-speed read or read-in with the data in computer through the data transmission circuit in the shell. The external flash bank inserted in the shell can be exited the bank socket easily, and can be inserted in a USB interface of a host through the USB 2.0 connector terminal.

Description

Circumscribed USB2.0 interface flash memory cards card reader

The utility model is a circumscribed USB2.0 interface flash memory cards card reader, particularly a kind of slotting casket body that is provided with USB2.0 joint or USB2.0 connecting line grafting computer USB port, its slot interface can be inserted the solid-state flash memory cards external connection of storage card such as (FLASH CARDS) of one or more different sizes in shell, to carry out the transfer function of external flash body read-write, so that have the computer of USB2.0 specification transport property, can carry out the connection of external connection of storage card and then reach the quick data transmission of high speed USB 2.0 specifications.The utility model also can be connected in the host computer of traditional USB1.1 or USB1.0 specification and the transmission speed of carrying out USB1.1/1.0 transmits data.

Because computer peripheral device is more and more diversified, add that the computer early stage of development each tame manufacturer respectively orders each transmission standard, make the slotting of host computer and every peripheral equipment with being connected, a lot of different grafting specifications have appearred, very chaotic in the use, from the most universal previous COM1, COM2, PARALLEL/PRINTER port etc., arrive the transfer connectors such as SCSI of multiple PIN number now, increased the trouble of the external peripheral equipment grafting of user computer, especially development so far, the connection-peg of the different transmission standards of minority, more broken the tacit agreement of distinct device connection-peg standard specification, often cause the situation of user's wrong plug peripheral equipment Port, computer is installed and used, can't convenient popularized consumption masses.

In addition, various hardware peripheral equipments must be under the operating system of computer, pour into the driving software of corresponding specification one by one, and carefully set the conflict address, just can make computer drive the peripheral equipment that has connected smoothly, if when at the beginning computer equipment being installed, Port with regard to the wrong plug peripheral equipment, behind the driving software that pours into and set corresponding effect, also can't make the peripheral equipment action, people tend to think to be unresolved address collision problem, and ignored the most basic joint wrong plug problem, and more make computer install debug and be difficult for, can't guarantee successful installation at once, and along with the idea of plug and play spreads to operation software or hardware, numerous computer dealers are by there being the unified idea that connects specification, adjust the multiple peripheral equipment single kind of Port of all pegging graft, and just can connect correctly, need not worry wrong plug, its driver can easily be grasped by the operation software standard of plug and play.

Therefore Compaq is also just arranged, DEC, IBM, Intel, USB (universal serial bar) the specification appearance of the USB that company formed such as Microsoft tissue institute, wish to utilize making of USB interface to be used for replacing traditional interface, make the comparatively not familiar consumer of PC, also can plug and play, use PC easily, yet this USB interface is USB1.0 and USB1.1 specification, only be applicable to slow, medium velocity (1Mbit～12Mbit) as keyboard, the peripheral equipment of mouse etc. uses, therefore the stocking system that needs high-speed transfer, with regard to the high-level efficiency serial bar (IEEE1394) that must use this USB2.0 specification or be formulated with [U.S.'s Institute of Electrical and Electronics Engineers (IEEE)], just can reach the effect of high-speed transfer, 1394 transmitting bandwidths now are up to 400Mbit/Sec, and the USB2.0 transmitting bandwidth is up to 480Mbit/Sec, along with the PC peripheral equipment is handled, the speed requirement of data transmission is more and more faster, 1394 and the USB2.0 specification can be in fashion gradually, but 1394 interface specifications of ground zero now only are confined on APPLE and the limited label computer and 1394 will develop toward the direction of digitized video.It is very appropriate using the interface of USB2.0 specification, the flash memory cards card reader of using on the market is parallel port or USB1.0/1.1 interface at present, its speed is the highest only can to reach 1.5MB/Sec, (12Mbit/Sec), and the interface of USB2.0 can be up to 60MB/Sec (480Mbit/Sec), this is about 40 times of USB1.0/1.1 interface, and the raising of its speed is considerable, and it is at a tremendous pace in the raising of various numerals and its capacity and transmission speed with the use of wide model to add flash memory cards.The card reader of USB2.0 specification can progressively be occupied main status, market in foreseeable future, and What is more, and the USB2.0 specification card reader of these research and development can directly be used on the computer of at present very general USB1.0 or USB1.1 specification.Only its speed only can be transmitted with transmission speed and the computer of USB1.0/1.1, and the characteristic functions of this dual specification will make the utility model be accepted fast by market.

The transfer rate of following flash memory cards will be carried to 10MB/Sec, even the scope of 20MB/Sec, USB1.1/1.0 is that the capacity of the bottleneck (because of USB1.1/1.0 only can be up to the 1.5MB/Sec that is limited on specification) of whole connection and flash memory cards can reach 512MB and more than the 1GB, it is comparatively suitable that a large amount of data like this must use USB2.0 or 1394 interfaces to transmit, the 1GB data is wanted more than 667 seconds at least by USB1.1/1.0, that is just can finish more than 11 minutes.And USB2.0 can finish in 17 seconds, and so raising of transmission speed will be accepted fast for market.

Therefore, because high efficiency USB2.0 specification does not have pair computer to set up the extension facility of external connection of storage card yet, this creator is actively creation research, through some hard production process, generation of the present utility model is arranged finally.

Therefore, the utility model purpose is promptly providing circumscribed USB2.0 interface flash memory cards (FLASH CARDS) card reader of a kind of suitable computer USB 2.0 and USB1.1/1.0 specification, it is pegged graft for a kind of USB2.0 of being provided with connecting line or connector can directly insert the slotting casket body at computer USB port, its interface can insert solid-state flash memory cards (FLASH CARDS and hard disk card) to inserting in the casket shell, to carry out the transfer function of external connection of storage card read-write, get so that have the computer of USB specification transport property, carry out the connection transmission of external flash memory cards, it is quicker to allow external data read, set up the bridge of implementing following high-speed transfer, this is the purpose of this utility model.

For realizing the purpose of this utility model, a kind of circumscribed USB2.0 interface flash memory cards card reader of suitable computer USB specification, it is characterized in that: mainly by one insert the casket shell, and a USB2.0 connecting line constituted, should insert casket shell one end and offer the flash memory cards interface, arrive in the slotting casket shell to insert various solid-state flash memory cards external connection of storage card such as (FLASH CARDS), and can be via the USB port of USB2.0 interface grafting host computer.

The utility model is further characterized in that with the connected mode of host computer and is the direct function of USB port to realize being connected that is plugged into host computer by the USB joint on the pcb board that is welded in the slotting casket shell; With the host computer connected mode be separable USB2.0 connecting line; Its connected mode is served as reasons and is fixed in the USB connection terminal of inserting the connecting line in the casket shell and is connected with host computer USB port; Flash memory cards is COMPACTFLASH CARD (precision flash memory cards and a CF hard disk card); The flash memory cards specification is SSFDC (solid-state quickflashing disk drive card has another name called the SMARTMEDIA card); Its flash memory cards specification that is suitable for of flash memory cards card reader is PCMCIA (PCMCIA flash card reader and a PCMCIA hard disk card machine); Its flash memory cards specification that is suitable for of flash memory cards card reader is MMC (a MulitMedia Card multimedia card); Its flash memory cards specification that is suitable for of flash card reader is Secure Digital (a S.D. safe digital card); Its flash memory cards specification that is suitable for of flash memory cards card reader is MemoryStick (a Memory Stick flash Card Reader); Its flash memory cards specification that is suitable for of flash memory cards card reader is UDISK (a postal delivery card flash memory cards); In the flash memory cards interface, be provided with dual slot or many slots, can the peg graft specification of various different flash memory cards of this dual slot or many slots.

Constitute thus, the utility model gets so that have the computer of USB2.0 specification high speed transport property, can carry out exceeding 40 times quick data transmission through the external flash body in USB2.0 port thus than traditional USB1.1/1.0, this creation can be made the flash memory cards card reader of similar function according to the specification of different flash memory cards, and its flash memory cards specification that is suitable for can be SSFDC (solid-state quickflashing magnetic disc card has another name called SMARTMEDIA), PCMCIA (the PCMCIA flash memory cards contains hard disk card), COMPACTFLASH (CF: the precision flash memory cards contains hard disk card), MMC (MULTIMEDIACARD: multimedia card), S.D. (Secure Digital: safe digital card), the memory stick flash memory cards) and UDISK (postal delivery card flash memory cards) Memory Stick (MemoryStick:.

Description of drawings:

Fig. 1 is the utility model circumscribed USB2.0 interface flash memory cards card reader, and its USB2.0 line is inserted casket body inside for bundle is connected to;

Fig. 2 is the utility model circumscribed USB2.0 interface flash memory cards card reader, and its wiring direction is that standard USB2.0 line can separate with slotting casket body;

Fig. 3 is the utility model circumscribed USB2.0 interface flash memory cards card reader, and its connected mode is that the card reader body directly inserts host computer USB port, does not reveal connecting line;

Fig. 4 is the utility model circumscribed USB2.0 interface flash memory cards card reader, and its connected mode is that the USB2.0 joint directly is welded on the circuit diagram of inserting on the casket body pcb board;

Fig. 5 is the use calcspar of the utility model circumscribed USB2.0 interface flash memory cards card reader;

Fig. 6 is another enforcement illustration of circuit of the utility model circumscribed USB2.0 interface flash memory cards card reader.

From the above as can be known, the description of the flash memory cards card reader preferred embodiment of the suitable computer USB specification of this kind of the present utility model.

Figure 1 shows that the utility model work is suitable for the circumscribed flash memory cards card reader overall perspective view of computer USB 2.0 or 1.1/1.0 specification, shown in this figure, can see that in appearance one inserts casket shell 1 and stretches out a USB2.0 connecting line 2 of this slotting casket shell 1 end, should insert casket shell 1 one ends and offer flash memory cards interface 10, to insert flash memory cards (FLASH CARDS, contain hard disk card) etc. various external connection of storage card to inserting in the casket shell 1, and this USB2.0 connecting line 2 is provided with USB splicing ear 20, can insert the USB port toward host computer.Fig. 2 is the utility model circumscribed USB2.0 interface flash memory cards card reader, and its mode of connection is that standard USB2.0 line can separate with slotting casket body.Fig. 3 can directly insert host computer USB port for the utility model circumscribed USB2.0 interface flash khaki card reader, and connect without connecting line, Fig. 4 is directly welded in circuit diagram on the PC plate for its USB2.0 connector 4 of the utility model circumscribed USB2.0 interface flash memory cards card reader, be provided with USB2.0 controller 30, tandem EEPROM 70 on the PC circuit again, and-voltage adjuster 60.

Its effect is shown in Fig. 5 effect calcspar, be provided with USB2.0 controller 30 in it, these device 30 1 terminations are subjected to and control for example SSFDC (solid-state quickflashing magnetic disc card) of circumscribed flash memory cards 40[, PCMCIA, FLASH (PCMCIA interface flash memory cards contains hard disk card), COMPACTFLASH (CF precision flash memory cards contains hard disk card), Multimedia Card (MMC multimedia flash memory cards), SD (Secure Digital safe digital card), the data transmission of Memory Stick (Memory Stick flash memory cards) and Udisk (the fast storage card of postal delivery card), (this port 50 can refer to the USB port of aforementioned electric brain server to pass to USB2.0 Port 50, or himself connects the USB splicing ear 20 at computer USB port)], and there is a tandem EEPROM 70 to connect USB2.0 controllers 30, and with of the voltage change of a voltage adjuster 60 modulation USB2.0 Ports 50 to institute's palpus between the circumscribed flash memory cards 40.

The utility model also can cooperate circuit diagram shown in Figure 6 to implement, and a CF connector 80, a power supply MOSFET one switch 90 are set in circuit, makes its allomeric function more complete.

From the above as can be known, suitable computer USB 2.0 of this kind of the present utility model and USB1.1 have the circumscribed flash memory cards card reader of USB1.0 specification, really have and make computer with traditional USB and the quick transport property of new-type USB2.0 specification, can carry out the connection transmission of external flash memory cards, the specification of its flash memory cards can be SSFDC (solid-state quickflashing magnetic disc card), PCMCIA, FLASH (PCMCIA interface flash memory cards contains hard disk card), COMPACTFLASH (CF precision flash memory cards contains hard disk card), Multimedia Card (MMC multimedia flash memory cards), SD (Secure Digital safe digital card), Memory Stick (Memory Stick flash memory cards) and Udisk (the fast storage card of postal delivery card), the high-speed transfer effect of the utility model tool USB2.0 specification and be not seen in public use, the regulation that meets Patent Law, earnestly ask the gift quasi patent, real be moral just.

Need explanation, the above is the utility model preferred embodiment, if comply with the change that conception of the present utility model is done, the function of its generation, when not exceeding instructions yet and illustrating contained spiritual, all should in scope of the present utility model, close and give Chen Ming.

Claims

1, a kind of circumscribed USB2.0 interface flash memory cards card reader of suitable computer USB specification, it is characterized in that: mainly by one insert the casket shell, and a USB2.0 connecting line constituted, should insert casket shell one end and offer the flash memory cards interface, arrive in the slotting casket shell to insert external connection of storage card such as various solid-state flash memory cards, and can be via the USB port of USB2.0 interface grafting host computer.

2, the circumscribed USB2.0 interface flash memory cards card reader of suitable computer USB specification as claimed in claim 1 is characterized in that: be the direct function of USB port to realize being connected that is plugged into host computer by the USB joint on the pcb board that is welded in the slotting casket shell with the connected mode of host computer.

3, the circumscribed USB2.0 interface flash memory cards card reader of suitable computer USB specification as claimed in claim 1 is characterized in that: and the host computer connected mode is separable USB2.0 connecting line.

4, the circumscribed USB2.0 interface flash memory cards card reader of suitable computer USB specification as claimed in claim 1 is characterized in that: connected mode is served as reasons and is fixed in the USB connection terminal of inserting the connecting line in the casket shell and is connected with host computer USB port.

5, the circumscribed USB2.0 interface flash memory cards card reader of suitable computer USB specification as claimed in claim 1, it is characterized in that: flash memory cards is precision flash memory cards and CF hard disk card.

6, the circumscribed USB2.0 interface flash memory cards card reader of suitable computer USB specification as claimed in claim 1, it is characterized in that: the flash memory cards specification is solid-state quickflashing disk drive card.

7, the circumscribed USB2.0 interface flash memory cards card reader of suitable computer USB specification as claimed in claim 1 is characterized in that: its flash memory cards specification that is suitable for of flash memory cards card reader is PCMCIA flash card reader and PCMCIA hard disk card machine.

8, the circumscribed USB2.0 interface flash memory cards card reader of suitable computer USB specification as claimed in claim 1 is characterized in that: its flash memory cards specification that is suitable for of flash memory cards card reader is a multimedia card.

9, the circumscribed USB2.0 interface flash memory cards card reader of suitable computer USB specification as claimed in claim 1 is characterized in that: its flash memory cards specification that is suitable for of flash card reader is a safe digital card.

10, the circumscribed USB2.0 interface flash memory cards card reader of suitable computer USB specification as claimed in claim 1 is characterized in that: its flash memory cards specification that is suitable for of flash memory cards card reader is the flash Card Reader.

11, the circumscribed USB2.0 interface flash memory cards card reader of suitable computer USB specification as claimed in claim 1 is characterized in that: its flash memory cards specification that is suitable for of flash memory cards card reader is postal delivery card flash memory cards.

12, the circumscribed USB2.0 interface flash memory cards card reader of suitable computer USB specification as claimed in claim 1, it is characterized in that: in the flash memory cards interface, be provided with dual slot or many slots, can the peg graft specification of various different flash memory cards of this dual slot or many slots.