Automatic vehicle door locking/unlocking apparatus

Details Automatic vehicle door locking/unlocking apparatus Automatic vehicle door locking/unlocking apparatus

2005-08-02

2005-08-02

Hofsass, Jeffery (Department: 2636)

Communications: electrical

Land vehicle alarms or indicators

Of burglary or unauthorized use

C340S870030, C340S005610, C340S426360, C340S426280, C307S009100, C307S010100

Reexamination Certificate

active

06924735

ABSTRACT:
An apparatus automatically locks the doors of a vehicle based on mutual communications between a portable unit and a vehicle-side control unit. After the doors are closed and locked after all the passengers get off the vehicle, the user of a portable unit unlocks the doors in order to allow a person without the portable unit to fetch something left in the vehicle. After the person opens a door, takes whatever he or she needs, and closes the door, the doors are automatically locked. When a door sensor is operated to unlock the doors, and one of the doors is opened, a memory means stores information indicating that the portable unit is present in a predetermined range outside of the vehicle. If the memory means stores information that the doors are unlocked, then the doors are automatically locked.

REFERENCES:
patent: 4811013 (1989-03-01), Akutsu
patent: 4973958 (1990-11-01), Hirano et al.
patent: 5835022 (1998-11-01), Amano
patent: 6476517 (2002-11-01), Okada
patent: 6542071 (2003-04-01), Ohtsubo et al.
patent: 6801134 (2004-10-01), Juzswik
patent: 6853296 (2005-02-01), Chandebois
patent: 3-55633 (1991-08-01), None
patent: 2001145017 (2001-05-01), None

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