Memory card, data driving method thereof, and memory card system including the same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Sep 15, 2009
Grant Date -
Nov 29, 2007
app pub date -
Feb 1, 2007
filing date -
Feb 1, 2006
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A memory card including a pad, a drive circuit activating the pad in accordance with an input signal, and a controller regulating a drive voltage level and a drive point of an output signal generated from the drive circuit in accordance with a voltage level of the output signal of the drive circuit. The controller may include a delay circuit, generating a second clock signal by delaying a first clock signal provided from an external source and generating a second clock signal from the first clock signal. The controller may further include a detection circuit capturing the voltage level of the output signal of the drive circuit as a first detection voltage in sync with the first clock signal and capturing the voltage level of the output signal of the drive circuit as a second detection voltage in sync with the second dock signal. The controller may additionally include a drive control circuit regulating the drive voltage level and the drive point of the output signal of the drive circuit in response to the first and second detection voltages.
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