Keyless entry system and vehicle-mounted device

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9919680
SERIAL NO

15442328

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A vehicle-mounted device includes a control unit that generates a request signal, a transmission unit that sequentially transmits a request signal generated by the control unit from a plurality of respective transmission antennas, a reception unit that receives a response signal to the request signal, and a storage unit that stores a history of information included in a response signal received by the reception unit, and, in a case where the response signal is newly received by the reception unit, the control unit determines whether or not a vehicle is caused to perform a predetermined operation on the basis of the information included in the response signal and the history of the information included in the response signal stored in the storage unit.

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Patent Owner(s)

  • ALPS ELECTRIC CO., LTD.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Miyazawa, Akira Miyagi-ken, JP 57 327

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