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A card reader for operating smart SD card and ordinary SD card and its working method

A card reader, intelligent technology, applied in the field of card readers operating smart SD cards and ordinary SD cards, can solve problems such as inability to operate card readers

Active Publication Date: 2017-06-06
FEITIAN TECHNOLOGIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The inventor found that in the prior art, the smart SD card can only be used in smart phones or digital products, and cannot be operated by card readers

Method used

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  • A card reader for operating smart SD card and ordinary SD card and its working method
  • A card reader for operating smart SD card and ordinary SD card and its working method
  • A card reader for operating smart SD card and ordinary SD card and its working method

Examples

Experimental program
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Embodiment 1

[0279] Such as Figure 1 to Figure 3 As shown, the present embodiment 1 provides a working method for operating a smart SD card and a card reader of an ordinary SD card, which specifically includes:

[0280] Step 101: the card reader is initialized;

[0281] In this embodiment, the initialization includes that the card reader resets the interrupt flag, clears the first number of readings, the second number of readings, the third number of readings, and the fourth number of readings. Zero, reset the fifth reading times, clear the sixth reading times, initially set the card slot status to no card, and set the card ID to the smart SD card ID;

[0282] Step 102: the card reader reads the data in the specified address and uses it as backup data;

[0283] Step 103: The card reader sends a binding command to the card, reads the data returned by the card from the specified address, and judges whether the read data is the same as the binding command, if yes, execute step 104; otherwis...

Embodiment 2

[0447] Such as Figure 4 to Figure 5 As shown, the present embodiment 2 provides a working method for operating a smart SD card and a card reader of an ordinary SD card, specifically including:

[0448] Step 201: the card reader is initialized;

[0449] In this embodiment, the initialization includes that the card reader resets the interrupt flag, clears the first number of readings, the second number of readings, the third number of readings, and the fourth number of readings. Zero, clear the fifth reading times, clear the sixth reading times, and initially set the card slot status to no card;

[0450] Step 202: The card reader defines the configuration information of the CCID and the configuration information of the SCSI interface, enables the USB connection, and sends the configuration information of the CCID and the configuration information of the SCSI interface when receiving an instruction to obtain interface configuration information issued by the host computer to th...

Embodiment 3

[0597] This embodiment provides a card reader for operating smart SD cards and ordinary SD cards, such as Figure 6 shown, including:

[0598] The initialization module 301 is used for initializing, and the card identification is set as the smart SD card identification, the card slot state is set as no card, the first reading times are cleared, the second reading times are cleared, and the third reading times are cleared. Clear the reading times, clear the fourth reading times, clear the fifth reading times, and clear the sixth reading times;

[0599] A reading module 302, configured to read data in a specified address, and use the read data as backup data, and trigger the first processing module 303;

[0600] The first processing module 303 is configured to send a binding instruction to the card, read the data returned by the card from the specified address, and trigger the first judging module 304;

[0601] The first judging module 304 is used to judge whether the data ret...

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Abstract

The invention discloses a card reader operating intelligent SD cards and ordinary SD cards and a working method of the card reader, and belongs to the field of communications. The method includes the steps that the card reader sends a binding instruction to a card, data in an assigned address are read, and if the read data are the same with the binding instruction, a card mark is set to be an ordinary SD card mark; a set interrupt mark is detected, the card reader obtains data in a USB storage when the set interrupt mark is a USB receive data mark, the instruction type of the obtained data is judged, if the data are an intelligent SD card communication instruction, the card reader communicates with the card, and if the data are a storage channel instruction, corresponding operations are carried out according to the card mark and the storage channel instruction. By the adoption of the method, the card reader can carry out data read-write operation on ordinary SD cards and can also issue an instruction to operate intelligent SD cards.

Description

technical field [0001] The invention relates to the communication field, in particular to a card reader for operating smart SD cards and common SD cards and a working method thereof. Background technique [0002] At present, with the development of science and technology, smart phones and digital products are widely used. As a memory card based on semiconductor flash memory technology, SD card has large capacity, high performance, security, read and write speed up to 2M / s, etc. It has become the most widely used memory card in smart phones and digital products. SD cards are divided into two types: smart SD cards and ordinary SD cards. Among them, the smart SD card has a smart chip, which integrates two functions of communicating with the device and storing data; the ordinary SD card only has the function of storing data; [0003] The inventors found that in the prior art, the smart SD card can only be used in smart phones or digital products, and cannot be operated by a car...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K17/00
Inventor 陆舟于华章
Owner FEITIAN TECHNOLOGIES