CN101620686A - Data card supporting USB interface and identification method thereof - Google Patents

Data card supporting USB interface and identification method thereof Download PDF

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Publication number
CN101620686A
CN101620686A CN200810039972A CN200810039972A CN101620686A CN 101620686 A CN101620686 A CN 101620686A CN 200810039972 A CN200810039972 A CN 200810039972A CN 200810039972 A CN200810039972 A CN 200810039972A CN 101620686 A CN101620686 A CN 101620686A
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CN
China
Prior art keywords
interface
data card
chip
cpu chip
usb 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.)
Pending
Application number
CN200810039972A
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Chinese (zh)
Inventor
张龚林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Simcom Ltd
Original Assignee
Shanghai Simcom Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shanghai Simcom Ltd filed Critical Shanghai Simcom Ltd
Priority to CN200810039972A priority Critical patent/CN101620686A/en
Publication of CN101620686A publication Critical patent/CN101620686A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a data card supporting USB interface and an identification method thereof. The data card comprises a CPU chip which supports a serial interface, a USB interface connected with the CPU chip, a memory which is connected with the CPU chip and used for storing data necessary for a user, an interface conversion chip connected with the CPU chip, a PCMICA interface or an EXPRESS interface which is converted into a serial interface supported by the CPU chip through the interface conversion chip, and a low dropout linear regulator which supplies power to the CPU chip and the interface conversion ship. The data card supporting the USB interface effectively makes up the defect of the data card only having a PCMICA or EXPRESS interface mode, thereby extending the applications of the data card.

Description

Support the data card and the recognition methods thereof of USB interface
Technical field
The present invention relates to a kind of data card, particularly relate to a kind of data card and recognition methods thereof of supporting USB interface and pcmcia interface or EXPRESS interface.
Background technology
Along with popularizing of notebook computer, have PCMCIA (Personal Computer Memory CardInternational Association, Personal Computer Memory Card Internatio) and the also corresponding increase of data card sales volume of EXPRESS (fast) interface, the data card of various functions is seen everywhere on the electronic market, comprises the data card that is applied to WIFI network, GPS location, GPRS or EDGE wireless Internet access etc.
Use the advantage of the data card of PCMCIA or EXPRESS interface mode to be: data card is installed in notebook inside, does not take additional space, can realize the integrated of notebook and data card.
But meanwhile, the data card of PCMCIA or EXPRESS interface mode has following shortcoming:
1, extended capability is poor: generally have only a PCMICA or EXPRESS data card interface on the notebook computer, if the existing on hand GPS card of client has GPRS and EDGE wireless network card again, then can only use a card.
2, upgrade cost height: can not be compatible between PCMICA card and the EXPRESS card.Trendy notebook computer often usefulness be the EXPRESS interface, the PCMICA card of Gou Maiing can't utilize again before, can increase the cost of client upgrading like this.
3, application surface is narrow: pcmcia card or EXPRESS card generally can only be used on the notebook computer, and this interface generally is not provided on the desktop computer computer.
Summary of the invention
The technical problem to be solved in the present invention is, upgrade cost height poor for the data card extended capability that overcomes PCMCIA in the prior art or EXPRESS interface mode and the narrow defective of application surface, a kind of data card and recognition methods thereof of supporting USB interface is provided, this data card is supported USB interface and pcmcia interface or EXPRESS interface simultaneously, remedy the shortcoming of the data card that has only PCMICA or EXPRESS interface mode effectively, can increase the application scenario of data card.
The present invention solves above-mentioned technical matters by following technical proposals: a kind of data card of supporting USB interface, and its characteristics are that it comprises: a cpu chip, it supports serial line interface; One USB interface, it is connected with this cpu chip; One storer, it is connected with this cpu chip and stores the required data of user; One interface conversion chip, it is connected with this cpu chip; One PCMICA interface or EXPRESS interface, it is converted to the serial line interface that this cpu chip is supported by this interface conversion chip; One low pressure difference linearity voltage stabilizing chip, it gives this cpu chip and interface conversion chip power supply.
Wherein, this cpu chip, interface conversion chip, low pressure difference linearity voltage stabilizing chip and memory package are one.
Wherein, this storer is the combination of a flash memories or a static store or a flash memories and a static store.
Another technical scheme of the present invention is the method that a kind of electronic equipment sets above-mentioned data card, and its characteristics are that this recognition methods may further comprise the steps: step S 1: insert data card; Step S 2: this data card operation; Step S 3: this electronic equipment detects interface type, if PCMICA interface or EXPRESS interface then enter step S 6Step S 4: whether if not PCMICA interface or EXPRESS interface, then continuing to detect is USB interface; If USB interface then enters step S 6If not USB interface, then enter step S 5Step S 5: press the interface type error handling processing; Step S 6: enter the normal data communication pattern, carry out data transmission; Step S 7If: completing steps S 6After, then finish the identification of this data card.
Positive progressive effect of the present invention is:
Data card of the present invention utilizes USB interface to be widely used, the characteristics that extendability is strong, promptly inherit the data card and the incorporate advantage of notebook computer of PCMICA or EXPRESS interface mode, also remedied the shortcoming of the data card that has only PCMICA or EXPRESS interface mode effectively, can increase the application scenario of data card, the user can use the PCMCIA/EXPRESS interface, can use USB interface again, and a computer can be hung different data cards simultaneously simultaneously.This data card is widely used, and realizes that simply cost is low.
Description of drawings
Fig. 1 is the structure principle chart of one embodiment of the invention.
Fig. 2 is the structure principle chart of another embodiment of the present invention.
Fig. 3 is the recognition methods process flow diagram of one embodiment of the invention.
Embodiment
Provide preferred embodiment of the present invention below in conjunction with accompanying drawing, to describe technical scheme of the present invention in detail.
Embodiment 1
Fig. 1 is the structure principle chart of one embodiment of the invention.As shown in Figure 1, data card of the present invention comprises that one supports CPU (central processing unit) chip 11 of serial line interface, one usb 1 that is connected with this cpu chip 11 2, an interface conversion chip 13, a low pressure difference linearity voltage stabilizing chip (LDO) 14 and a storer 15, wherein this interface conversion chip 13 is connected with PCMICA interface 16, realizes that the PCMICA interface is to MICROWIRE, the USB of cpu chip 11 supports, the conversion of serial line interfaces such as SPI, UART; This low pressure difference linear voltage regulator also is connected with interface conversion chip 13, usb 12 and PCMICA interface 16, with after outside electronic equipment is connected, powers for interface conversion chip 13 and cpu chip 11 by usb 12 or PCMICA interface 16; This storer 15 is the combination of a flash memories (Flash Memory) or a static store (Static RAM) or flash memories and static store, and this storer 15 is used for storing the required data of user.Wherein, cpu chip 11, interface conversion chip 13, low pressure difference linearity voltage stabilizing chip (LDO) 14 and storer 15 can be packaged as a whole.When the user uses data card of the present invention, only need PCMICA interface or USB interface corresponding on data card and the electronic equipment are connected, thereby realized the data transmission of data card and electronic equipment, remedied the shortcoming of the data card that has only PCMICA or EXPRESS interface mode effectively, can increase the application scenario of data card, such as being applied on the desktop computer computer.
Embodiment 2
Fig. 2 is the structure principle chart of another embodiment of the present invention, as shown in Figure 2, structure and the principle of work of embodiment 2 are substantially the same manner as Example 1, its main difference part is: EXPRESS interface 17 has been replaced the PCMICA interface 16 among the embodiment 1, and its concrete structure and principle of work no longer describe in detail here.
Fig. 3 is the recognition methods process flow diagram of one embodiment of the invention, as shown in Figure 3, supposes that an electronic equipment uses data card of the present invention, and this electronic equipment is equipped with an interface recognizer, and its concrete recognition methods may further comprise the steps:
Step 101: insert data card;
Step 102: this data card operation;
Step 103: electronic equipment detects interface type, if PCMICA interface or EXPRESS interface then enter step 106;
Step 104: if not PCMICA interface or EXPRESS interface, whether be USB interface, if USB interface then enters step 106 if then continuing to detect; If not USB interface, then enter step 105;
Step 105: press the interface type error handling processing;
Step 106: enter the normal data communication pattern, carry out data transmission;
Step 107:, then finish the identification of this data card if behind the completing steps 106.
Though more than described the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, under the prerequisite that does not deviate from principle of the present invention and essence, can make numerous variations or modification to these embodiments.Therefore, protection scope of the present invention is limited by appended claims.

Claims (4)

1, a kind of data card of supporting USB interface is characterized in that it comprises:
One cpu chip, it supports serial line interface;
One USB interface, it is connected with this cpu chip;
One storer, it is connected with this cpu chip and stores the required data of user;
One interface conversion chip, it is connected with this cpu chip;
One PCMICA interface or EXPRESS interface, it is converted to the serial line interface that this cpu chip is supported by this interface conversion chip;
One low pressure difference linearity voltage stabilizing chip, it gives this cpu chip and interface conversion chip power supply.
2, the data card of support USB interface as claimed in claim 1 is characterized in that, this cpu chip, interface conversion chip, low pressure difference linearity voltage stabilizing chip and memory package are one.
3, the data card of support USB interface as claimed in claim 1 is characterized in that, this storer is the combination of a flash memories or a static store or a flash memories and a static store.
4, a kind of electronic equipment is characterized in that the method that data card as claimed in claim 1 sets, and this recognition methods may further comprise the steps:
Step S 1: insert data card;
Step S 2: this data card operation;
Step S 3: this electronic equipment detects interface type, if PCMICA interface or EXPRESS interface then enter step S 6
Step S 4: whether if not PCMICA interface or EXPRESS interface, then continuing to detect is USB interface; If USB interface then enters step S 6If not USB interface, then enter step S 5
Step S 5: press the interface type error handling processing;
Step S 6: enter the normal data communication pattern, carry out data transmission;
Step S 7If: completing steps S 6After, then finish the identification of this data card.
CN200810039972A 2008-07-01 2008-07-01 Data card supporting USB interface and identification method thereof Pending CN101620686A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200810039972A CN101620686A (en) 2008-07-01 2008-07-01 Data card supporting USB interface and identification method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200810039972A CN101620686A (en) 2008-07-01 2008-07-01 Data card supporting USB interface and identification method thereof

Publications (1)

Publication Number Publication Date
CN101620686A true CN101620686A (en) 2010-01-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN200810039972A Pending CN101620686A (en) 2008-07-01 2008-07-01 Data card supporting USB interface and identification method thereof

Country Status (1)

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CN (1) CN101620686A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013013578A1 (en) * 2011-07-27 2013-01-31 华为终端有限公司 Method for updating data card, personal computer and data card

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013013578A1 (en) * 2011-07-27 2013-01-31 华为终端有限公司 Method for updating data card, personal computer and data card
US9170801B2 (en) 2011-07-27 2015-10-27 Huawei Device Co., Ltd. Data card updating method, personal computer, and data card

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Application publication date: 20100106