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:
Mar. 28, 2000
Filed:
Aug. 13, 1997
Applicant:
Inventors:
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A04Q / ; A04Q / ;
U.S. Cl.
CPC ...
34082531 ; 34082534 ; 34082569 ; 34082572 ; 70256 ; 70262 ;
Abstract
A remote-control-operated locking/unlocking system includes a key which transmits a locking/unlocking signal by remote control. A locking/unlocking unit is provided with a controller for controlling a locking/unlocking operation based on a locking/unlocking signal transmitted from the key. The controller has a suitability determining section for determining the suitability of a locking/unlocking signal transmitted from the key, and an information section for providing information indicating that the use of the key is unsuitable.