The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 29, 2007
Filed:
Feb. 12, 2003
Jean-marc Belmond, St Jean le Blanc, FR;
Frederic Burkat, Bouzy-la-Forêt, FR;
Sylvain Chonavel, Sully sur Loire, FR;
Yi Hwa Chu, Ouzouer sur Loire, FR;
Pascal DE Vries, Sandillon, FR;
Jean-Marc Belmond, St Jean le Blanc, FR;
Frederic Burkat, Bouzy-la-Forêt, FR;
Sylvain Chonavel, Sully sur Loire, FR;
Yi Hwa Chu, Ouzouer sur Loire, FR;
Pascal De Vries, Sandillon, FR;
ArvinMeritor Light Vehicle Systems - France, Sully-sur-Loire, FR;
Abstract
A system for unlocking a key cylinderless automobile vehicle door includes a portable object having an identifier and a circuit for interrogating the object. The circuit powers the object and interrogates the object when it is outside the vehicle. The interrogating circuit supplies a signal authorizing unlocking of the door as a function of the identifier. A standby power supply, which is separate from the main power supply of the vehicle, also powers the circuit and the object. As a result, the vehicle door does not require a key cylinder while still ensuring unlocking even if the main power supply of the vehicle fails.