Detection method used in adaptor capable of inserting various kinds of memory cards
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United States of America Patent
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Apr 20, 2004
Grant Date -
Jul 24, 2003
app pub date -
Jan 18, 2002
filing date -
Jan 18, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention relates to a detection method used in a memory card adaptor and, more particularly, to a detection method used in an adaptor capable of inserting various kinds of memory cards. The present invention comprises mainly the steps of: a control device on an adaptor issuing an identification command to detect a memory card responsive to the identification command, and the control device issuing again a reset command to detect a reset-type memory card if there is no corresponding response; the control device continually awaiting a response signal if there is still no corresponding response; the control device entering a read/write mode corresponding to the memory card if a corresponding response is obtained after issuing the command; and the control device awaiting a read/write command of said master device. The present invention can effectively enhance detection and identification efficiency without the need of adding a hardware switching device.
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