Title:
REMOTE CONTROLLER FOR AUTOMOBILE
Document Type and Number:
Japanese Patent JPS62267807
Kind Code:
A
Abstract:
PURPOSE:To use a radio reception antenna, etc., as that of a remote controller for automobile and also to reduce the power consumption of both a transmitter and a receiver, by setting the carrier wave of the transmitter at a frequency level higher than a radio broadcast frequency band of a telephone transmission/reception frequency band and turning on and off the working voltage of a carrier wave oscillating circuit to transmit the impulsive carrier waves at the pulse interval set in response to codes. CONSTITUTION:The carrier wave of a transmitter 1 is set at a frequency higher than a radio broadcast frequency band or a telephone transmission/reception frequency band. The signals received from the transmitter 1 can be separated into the radio broadcast signals, etc. according to different frequency bands and a radio reception antenna 6, etc., can be used also as the reception antenna of a remote controller for automobile. While the working voltage of a carrier wave oscillation circuit is turned on and off and then turned on impulsively at the intervals set in response to codes for transmission. Therefore the working time of the transmitter 1 is shortened together with reduction of the power consumption. Furthermore a receiver 8 is set in a short time working state in terms of a cycle and then kept in a working state for a prescribed time after detection of signals received from the transmitter 1. Therefore the working time of the receiver 8 is short in at the time of waiting together with reduction of the power consumption.
Inventors:
SATO KAZUO
Application Number:
JP11214386A
Publication Date:
November 20, 1987
Filing Date:
May 16, 1986
Export Citation:
Assignee:
ALPS ELECTRIC CO LTD
International Classes:
G08C19/28; B60J5/00; B60J5/04; B60R16/02; B60R16/023; E05B49/00; G01C21/34; G05B24/02; G07C9/00; G08C19/24; G08G1/0969; G09B29/00; G09B29/10; H04B1/16; H04B1/18; H04B1/40; H04M11/00; H04Q9/00; (IPC1-7): B60J5/04; E05B49/00; G05B24/02; G08C19/28; H04B1/16; H04B1/18; H04B1/40; H04Q9/00
Attorney, Agent or Firm:
Tetsuo Moriyama
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