Communication system and method utilizing message frames having multiple thresholds for a multi-device vehicle occupant protection system
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United States of America Patent
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Jun 1, 2004
Grant Date -
N/A
app pub date -
Mar 21, 2000
filing date -
Mar 21, 2000
priority date (Note) -
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Abstract
A communication system (10) includes a communication bus (16) through which a power/voltage transmitter (44) conveys electrical energy and messages to a plurality of units (18, 20). The power/voltage transmitter (44) includes components for adjusting voltage of the electrical energy past a first predetermined threshold to provide a first type message frame and modulating the voltage of the electrical energy during the first type message frame to convey a first type message. The power/voltage transmitter (44) also includes components for adjusting the voltage past a second predetermined threshold to provide a second type message frame and modulating the voltage of the electrical energy during the second type message frame to convey a second type message.
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