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Apparatus and method for establishing data transmission mode by recognition of inserting card

一种数据传送、模式的技术，应用在协同作业的装置、电数字数据处理、字符和模式识别等方向，能够解决主机可靠性不确定、不能识别取出的信息等问题

Inactive Publication Date: 2006-07-05
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, in case the card is removed from the slot while accessing (mainly reading / writing) the card, the information that the card is removed from the slot cannot be recognized on a host computer
Therefore, the reliability of the host's control is uncertain

Method used

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  • Apparatus and method for establishing data transmission mode by recognition of inserting card
  • Apparatus and method for establishing data transmission mode by recognition of inserting card
  • Apparatus and method for establishing data transmission mode by recognition of inserting card

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Experimental program
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Embodiment Construction

[0027] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

[0028] figure 1 Diagram of a conventional memory card control system. see figure 1 , the memory card control system includes a host (card driver) 11 , a controller 12 and a plurality of memory cards 1301 , 1302 and 1303 .

[0029] According to the standard specifications of memory cards, up to 30 memory cards can be inserted. The clock signal can vary up to a maximum frequency of 20MHz, and the block size of transmitted data can be freely controlled. One of the plurality of memory cards 1301, 1302, and 1303 is selected in accordance with a command of the host 11, ie, a card driver installed in the host 11 as an operating system (OS), to transmit and receive data to be transmitted.

[0030] figure 2 The pinouts of a conventional memory card and a conventional controller are illustrated. see figure 2 , the pins of the multimedia card 22 and th...

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PUM

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Abstract

An apparatus and method for identifying whether a memory card is inserted and for constituting data for identifying the memory card using hardware are provided. The apparatus establishes a data transfer mode through identifying the insertion of a card and includes a card insertion identifier, a card assignment information receiver, and a data transfer mode establisher. The card insertion identifier identifies whether a card is inserted. The card assignment information receiver receives predetermined card assignment information from a card driver if the card insertion identifier identifies that the card is inserted. The data transfer mode establisher establishes the data transfer mode for the card based on the card assignment information. The apparatus further includes a data transfer mode releaser that if the card insertion identifier identifies in the data transfer mode that the card is no longer inserted, informs the card driver that the card is not inserted to release the data transfer mode.

Description

[0001] This application claims priority from Korean Patent Application No. 2002-44504 ​​filed with the Korean Intellectual Property Office on June 27, 2002, the disclosure of which is hereby incorporated by reference in its entirety. technical field [0002] The present invention relates to an apparatus and method for identifying whether a memory card is inserted using hardware and for configuring data for identifying the memory card. Background technique [0003] With the widespread use of digital communication devices or electronic devices for processing video data and music data, various types of memory cards storing digital data are issued. Memory cards mainly use flash memory, and SmartMedia of Toshiba Corporation of Japan, MemoryStick of Sony Corporation of Japan, CompactFlash of Sandisk Corporation of the United States, MultiMedia Card and Secure Digital Card jointly developed by Sandisk Corporation of the United States and Gimens Corporation of Germany are standardize...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F13/14G06K9/62G06K17/00G06F13/00G06K7/00
CPCG06K7/10297G06K7/0008G06F13/00
Inventor 姜信旭
Owner SAMSUNG ELECTRONICS CO LTD
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