Method and apparatus for accelerating detection of serial bus device speed signals
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United States of America Patent
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Aug 22, 2006
Grant Date -
May 26, 2005
app pub date -
Dec 21, 2004
filing date -
Nov 16, 1999
priority date (Note) -
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Abstract
A method and apparatus for accelerating detection of speed code signals, and in particular S400 signals, for IEEE Standard 1394-1995 serial bus devices. The present invention validates S400 mode immediately after detecting an S400 speed signal, or immediately after detecting an S400 speed signal following a first S200 speed signal. The invention further provides S200 and S100 mode validation according to current implementations. Additionally, the invention does not require RX_DATA_PREFIX as a pre-requisite for signal detection.
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