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Patent Searching and Data


Title:
ON-VEHICLE EQUIPMENT REMOTE CONTROL DEVICE
Document Type and Number:
Japanese Patent JP2007216869
Kind Code:
A
Abstract:

To provide an on-vehicle equipment remote control device which achieves compatibility of radio noise countermeasure and a good power source power utilization factor at low cost.

The on-vehicle equipment remote control device has an operation control means for transmitting/receiving a signal between an on-vehicle transmission antenna and a portable machine and controlling the operation state of the on-vehicle equipment when code checking of a return signal returned from the portable machine is performed. The device is also provided with: an antenna drive control means provided with a wave form switching control means 604 for selecting and leading any one of a sine wave signal generated by a sine wave generation means 603 and a rectangular wave signal Vp generated by a rectangular wave generation means; and a transmission circuit part 17a inputted with the sine wave signal or the rectangular wave signal selected by the wave form switching control means and outputting a transmission antenna drive output Vo of a wave form corresponding to the inputted wave form as a drive means for driving the transmission antennas 11a-12d. The transmission antenna is driven by switching to sine wave driving or rectangular wave driving according to the use circumstance.

COPYRIGHT: (C)2007,JPO&INPIT


Inventors:
YAMAMOTO HIROAKI
Application Number:
JP2006040885A
Publication Date:
August 30, 2007
Filing Date:
February 17, 2006
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
E05B49/00; B60R25/01; B60R25/021; B60R25/04; B60R25/10; B60R25/24; B60R25/40; H04B1/04; H04B7/26; H04Q9/00; H04W4/04; H04W84/10
Attorney, Agent or Firm:
大岩 増雄
児玉 俊英
竹中 岑生
村上 啓吾