Remote control apparatus providing leader pulse followed by data pulses
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United States of America Patent
Stats
-
Aug 15, 1989
Grant Date -
N/A
app pub date -
Feb 9, 1987
filing date -
May 16, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A communication apparatus is used in a radio control apparatus for remotely controlling the locking and unlocking of the doors or trunk of a vehicle and other uses. In this communication apparatus, a leader pulse having a predetermined duration is transmitted from the transmitter to the receiver prior to transmission of data. The receiver is intermittently operated for a period shorter than the duration of the leader pulse by periodic operating pulses issued for connecting its circuits to a battery power source, and detects the transmission of a leader pulse in order to hold the receiver in the operating condition for a predetermined period sufficient to receive the following data pulses.
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