Data transmission method and apparatus
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United States of America Patent
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Sep 5, 2006
Grant Date -
Sep 12, 2002
app pub date -
Sep 28, 2001
filing date -
Apr 10, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Apparatus and method for transmitting data messages between a plurality of stations interconnected by a bus line is disclosed, in which each message includes a frame portion and a data portion. The frame portion represents content and priority information of the data message, and the data portion represents data to be transmitted. At least one station transmits a data message having the frame portion transmitted at a first data transmission rate, and the data portion transmitted at a second data transmission rate which is not less than the first data transmission rate. The first and/or second data transmission rate is adjustable in dependence on a signal quality determined for transmission of a data message.
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