CN2489384Y - Computer keyboard with card reader - Google Patents
Computer keyboard with card reader Download PDFInfo
- Publication number
- CN2489384Y CN2489384Y CN 01232636 CN01232636U CN2489384Y CN 2489384 Y CN2489384 Y CN 2489384Y CN 01232636 CN01232636 CN 01232636 CN 01232636 U CN01232636 U CN 01232636U CN 2489384 Y CN2489384 Y CN 2489384Y
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- CN
- China
- Prior art keywords
- keyboard
- card reader
- circuit
- card
- interface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a computer keyboard with a card reader, comprising a keyboard circuit, a card reader circuit and a power control. Wherein, the keyboard circuit is provided with an USB interface. A card reader faucet is arranged on the keyboard and is connected with the keyboard in circuit. The card reader circuit can be directly connected with a keyboard circuit CPU or be connected with the keyboard circuit CPU through a bus transceiver or a buffer. The utility model expands the functions of a keyboard, provides users with a shortcut of computer operating and integrates the functions of a resistance type hand input tablet for users with a convenient text input mode. Moreover, the utility model is helpful in enhancing the support for IC cards, building a low-cost e-commerce platform, assembling the conversion functions of memory card USB so that users can access files in all memory cards through accessing computer harddisk.
Description
Technical field
The utility model relates to a kind of expansion of computor-keyboard, and especially a kind of computor-keyboard that has card reader belongs to the expansion of computer peripheral equipment function.
Background technology
At present, in IA and the digital device, " storage card " used in a large number, main product has: CompactFlash (C/F), Multimedia Card (MMC), Smart Media Card (SMC), SecurityDisk (SD), IBM Micro-Drive (MD), Memory Stick (MS) etc., though C/F and MD interface compatibility, MMC and SD interface compatibility, most of product is when doing the data exchange with PC, the interface that does not but have unified specification, cause the user must link to each other with computing machine with line miscellaneous when using different product, its transmission speed is limited, also causes user's inconvenience.
In addition, the transmission interface of equipment such as hand-held device or digital camera has: serial ports, parallel port, USB1.1, IEEE1394 etc., transmission speed differs, the transmission mode difference.
Also has the situation that many data mobile storages also exist interface to differ.
On the market independent card reader is only arranged now, wherein part is the All-in-One card reader, and part is single SLOT card reader.
Summary of the invention
The purpose of this utility model one is to provide a kind of computor-keyboard that has card reader, supports the IC-card card-reading function, supports to meet all CPU card and storage cards of IS07816 standard.
The purpose of this utility model two is to provide a kind of computor-keyboard that has card reader, the signaling transfer point that provides various storages to snap into usb protocol, and with the USB mass-memory unit of the storage card standard of transferring into, the various main flow storage cards on the compatible market.
The purpose of this utility model three is to provide a kind of computor-keyboard that has card reader, beyond the various functions of integrated keyboard, supports resistance-type handwriting pad function.
The purpose of this utility model four is to provide a kind of computor-keyboard that has card reader, and the communication interface of every IA and digital product storage card and PC is provided, and promotes the communication speed of every IA and digital product and PC.
The purpose of this utility model is achieved in that
A kind of computor-keyboard that has card reader is characterized in that: comprise keyboard circuit, card reader circuit, power supply control, wherein keyboard circuit design itself has USB interface, card reader jack to be positioned at the keyboard body, links to each other with keyboard circuit on circuit.
The card reader circuit interface is for itself having (CF) card of memory function, and its circuit interface directly is connected with keyboard circuit CPU.Described card reader is connected by USB-DP, DM two pins with keyboard circuit.
CF card, mmc card, SMC card insert in the card reader.
For the storage card with data storage function (CF), the keyboard chip is controlled address strobe, the read-write operation of CF card in the card reader with address wire and is scouted the mode of operation of card, carries out the transmission of parallel data with data line.
For the storage card (MMC) of serial data transmission form, adopt data buffer to carry out metadata cache.The card reader circuit interface is the serial data transmission card, meets keyboard circuit CPU by bus transceiver.
For the storage card (SMC) of parallel data transformat, adopt data latches to latch.The card reader circuit interface is a parallel data transmission card interface, meets keyboard circuit CPU by buffer.
Described card reader jack can be located at the side of keyboard body.
Described card reader jack is more than one.
Technique effect of the present utility model is as follows:
Expanded the function of keyboard, the shortcut of user's operating computer is provided, integrate resistance-type handwriting pad function, the literal input mode of providing convenience for the user, enhancing is to the support of IC-card, construct e-commerce platform cheaply, made up the translation function of storage card USB, the user can visit the file of various storage cards the inside with the mode of access computer hard disk.
In addition, modular design for module integrated in the future, made special chip possibility is provided to reduce cost.
Description of drawings
Fig. 1 the utility model card reader location drawing;
Fig. 2 the utility model The general frame;
Fig. 3 the utility model circuit theory diagrams one;
Fig. 4 the utility model circuit theory diagrams two;
Fig. 5 the utility model circuit theory diagrams three;
Fig. 6 the utility model circuit theory diagrams four;
Fig. 7 the utility model circuit theory diagrams five.
Among the figure,
U1--AT24C08 EEPROM is used for PID, the VID of storage equipment
The first of U2--AU94173 master IC realizes the C/R function, and carries out data transmission with U3.
U3--W27C512 EPROM is used for carrying out with C/R the transmission of data.
The second portion of U4--AU94173 master IC is realized keyboard, HUB and handwriting functions
U5--2526-2BM overcurrent protection IC provides power supply for bottom two HUB, and the Auto-Sensing electric current.When electric current is excessive, the HUB power supply can be cut off automatically.
The third part of U6-AU94173 master IC realizes the five in one memory card function.
U7, U8-74LVX245, the 8bit bus transceiver is used for receiving and sending data, carries out the transmitted in both directions of parallel data.
U9--74VHC125 BUFFER impact damper is used for carrying out the control of latching of data.
The same U9 of U10--74HC126
The J1--USB interface links to each other with the USB line with the USB mouth of mainboard.
J2--handwriting pad interface, four pin sockets, external writing pad electro-conductive glass.
J3, J4--HUB interface can external low power consumption equipment.
J5--CF, MD deck
The J6--SMC deck
J7--MMC, SD deck
JP1, JP2--wire jumper contact pin
JP3--SCARD socket C/F card
JP4, JP5--keyboard socket
Embodiment
At the periphery of existing standard USB keyboard 1, offer slot 2, storage card 3 can insert in the slot 2 of keyboard 1, as Fig. 1.Slot 2 can be located at front, side of keyboard 1 etc.
The utility model is a kind of computor-keyboard that has card reader, comprise USB HUB master chip and card reader, power supply control etc., wherein USB HUB master chip is keyboard, handwriting pad, general input/output function pin, HUB function, card reader five in one chip, two USB interface can be provided itself, in this circuit, card reader takies one of them USB interface, another reservation.
In storage card, because C/F and MD interface compatibility, MMC and SD interface compatibility are so be equivalent to only three kinds of decks of needs design.
At first, utilize a pin of storage card to detect the insertion state.This detection pin is respectively MMC CHK, SMC CD, CF CD.
When not inserting storage card, this pin is a high level.
When having detected the storage card insertion, this pin is a low level.This moment is reading of data from card, the line data of going forward side by side transmission.
Concrete principle of work is as follows:
For the CF card: see Fig. 4, because the CF card itself has the function of data storage, therefore, U6 is with three address wire CF-A0, and A1, A2 control the address strobe of J5, use CF-#RE, ST9-#WE controls the read-write operation of CF card, and the mode of operation of scouting the CF card with the CF-R/B pin is READY or BUSY, finally carries out the transmission of parallel data with 8 data line ST9-D0---D7.
Workflow: the CF card inserts among the J5, arrives U6 then.
For mmc card: see Fig. 5, its data transmission format is a serial data transmission, by MMC-CLK receive clock signal, accepts data-signal with the MMC-DAT pin.Because the difference of its transmission mode, signal and data can not directly be accepted by U6, have therefore used U9 and U10 to carry out metadata cache.
Workflow: mmc card inserts among the J6, arrives U6 then by U7, U8.
For SMC card: its transformat is the parallel data transmission, utilize U7, U8 to carry out and U6 between the latching and transmit of control signal and parallel data signal, as the control signal transceiver, U8 is as data collector at this for U7, and the conducting of its signal is controlled by the ST9-DATA-DIR that comes from U6.When this signal did not trigger, data can be latched, and when this signal triggering, data transmission were gone out, and its data transfer mode is two-way.
Workflow: SMC card inserts among the J7, by U9, U10 to U6.
Claims (6)
1, a kind of computor-keyboard that has card reader is characterized in that: comprise keyboard circuit, card reader circuit, power supply control, wherein keyboard circuit design itself has USB interface, card reader jack to be positioned at the keyboard body, links to each other with keyboard circuit on circuit.
2, the computor-keyboard that has card reader as claimed in claim 1 is characterized in that: the card reader circuit interface is for itself having (CF) card of memory function, and its circuit interface directly is connected with keyboard circuit CPU.
3, the computor-keyboard that has card reader as claimed in claim 1 is characterized in that: the card reader circuit interface is the serial data transmission card, meets keyboard circuit CPU by bus transceiver.
4, the computor-keyboard that has card reader as claimed in claim 1 is characterized in that: the card reader circuit interface is a parallel data transmission card interface, meets keyboard circuit CPU by buffer.
5, the computor-keyboard that has card reader as claimed in claim 1, it is characterized in that: described card reader jack can be located at the side of keyboard body.
6, as claim 1 or the 5 described computor-keyboards that have card reader, it is characterized in that: described card reader jack is more than one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01232636 CN2489384Y (en) | 2001-07-31 | 2001-07-31 | Computer keyboard with card reader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01232636 CN2489384Y (en) | 2001-07-31 | 2001-07-31 | Computer keyboard with card reader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2489384Y true CN2489384Y (en) | 2002-05-01 |
Family
ID=33646659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01232636 Expired - Lifetime CN2489384Y (en) | 2001-07-31 | 2001-07-31 | Computer keyboard with card reader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2489384Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005041481A1 (en) * | 2003-10-29 | 2005-05-06 | Hui Lin | A method of internet clearance security certification and ic card certification hardware |
| WO2005041480A1 (en) * | 2003-10-29 | 2005-05-06 | Hui Lin | A method of mail server landing security certification and ic card certification hardware |
| WO2005083552A1 (en) * | 2004-02-24 | 2005-09-09 | Liangming Cao | Computer keyboard with the function of electronic massage |
-
2001
- 2001-07-31 CN CN 01232636 patent/CN2489384Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005041481A1 (en) * | 2003-10-29 | 2005-05-06 | Hui Lin | A method of internet clearance security certification and ic card certification hardware |
| WO2005041480A1 (en) * | 2003-10-29 | 2005-05-06 | Hui Lin | A method of mail server landing security certification and ic card certification hardware |
| WO2005083552A1 (en) * | 2004-02-24 | 2005-09-09 | Liangming Cao | Computer keyboard with the function of electronic massage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: TAIJUN TECHNOLOGY(SHENZHEN) LTD. Free format text: FORMER OWNER: TAIJUN INDUSTRIAL CO., LTD. Effective date: 20050422 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20050422 Address after: 518106, No. 23, third industrial zone, down village, Gongming Town, Shenzhen, Guangdong, Baoan District Patentee after: Taiguen Technology (Shenzhen) Co., Ltd. Address before: Taiwan city of Zhongli Province Patentee before: Taijun Industry Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20110731 Granted publication date: 20020501 |