Remote control device for vehicle
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United States of America Patent
Stats
-
Feb 19, 2008
Grant Date -
Sep 29, 2005
app pub date -
Dec 8, 2004
filing date -
Dec 11, 2003
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A door lock drive controller, after outputting a drive signal to a drive circuit of a door lock actuator based on a signal from a remote control terminal, outputs an answer back signal in the form of pulses to a lamp drive circuit to light a hazard lamp. In a buzzer drive controller, pulses are converted to waveforms with changing voltage values at a waveform converter. A repetitive pulse with frequencies that changes is generated by a frequency generator based on the waveform-converted pulses and, in accordance therewith, a buzzer is driven by an output unit. A whistle-like tone can be obtained by causing the frequency of the repetitive pulse to change in the direction of increase.
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