公开(公告)号：US20230365102A1

公开(公告)日：2023-11-16

申请号：US18357841

申请日：2023-07-24

Applicant: DENSO CORPORATION

Inventor： Hiroya YAMAMOTO ,  Ryusuke ISHIKAWA ,  Kohei NIMURA

IPC: B60R25/24 ,  G07C9/00

CPC classification number: B60R25/24 ,  G07C9/00309 ,  B60R2325/101 ,  G07C2009/00793 ,  G07C2009/00984 ,  G07C2209/08

Abstract: An electronic key system installed in a vehicle includes: a first wireless communication controller performing transmission of a predetermined radio signal, as a verification signal, via a first wireless communication to confirm presence or absence of each of a first portable device and a second portable device each of which is usable as an electronic key of the vehicle; a second wireless communication controller periodically performing transmission/reception of the radio signal via second wireless communication to and from each of the first portable device and the second portable device upon transmitting/receiving the verification signal; and an integrity controller integrally controlling an operation of each of the first wireless communication controller and the second wireless communication controller.