Electronic key apparatus for vehicle

Details Electronic key apparatus for vehicle Electronic key apparatus for vehicle

2005-10-25

2010-10-12

Patel, Ajit (Department: 2617)

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

C455S569200, C701S001000, C701S002000

Reexamination Certificate

active

07813773

ABSTRACT:
An electronic key apparatus for vehicle includes a vehicle mounted device, and a portable device. The vehicle mounted device operates a controller upon authenticating an ID code of the portable device by communication with the portable device, and includes a first sending/receiving unit, a first memory that stores ID codes to authenticate portable devices, a first CPU that sends a request signal to the portable device, and receives and decodes whether an answer signal matches the ID code, and a driving unit that outputs a control signal. The portable devices includes a second sending/receiving unit, a second memory that stores a unique ID code, and a second CPU that encrypts the unique ID code and sends an answer signal. The vehicle mounted device includes a disablement unit that temporarily suspends use of an ID code, and does not communicate with the portable device with the suspended ID code.

REFERENCES:
patent: 6008722 (1999-12-01), Hirozawa et al.
patent: 7167084 (2007-01-01), Proefke et al.
patent: 7415271 (2008-08-01), Nicolini
patent: 2004/0199631 (2004-10-01), Natsume et al.
patent: 2005/0270138 (2005-12-01), Ikeda
patent: 199 60 260 (2001-07-01), None
patent: 3191607 (2001-05-01), None
patent: 2002-227479 (2002-08-01), None
patent: 2003-148019 (2003-05-01), None
patent: 3589188 (2004-08-01), None

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