Trailer communications system
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United States of America Patent
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-
May 18, 1999
Grant Date -
N/A
app pub date -
Nov 25, 1996
filing date -
Nov 25, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A trailer communications system (36) is provided. The system (36) includes a trailer transducer unit (22) for location on a trailer (12). A vehicle transducer unit (24) can be located on a vehicle (26, 28, 30) or a stationary object (32). The trailer transducer unit (22) and the vehicle transducer unit (24) may communicate information in the form of acoustic signals broadcast at an ultrasonic frequency in response to a predetermined event.
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