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.

Date of Patent:
Oct. 22, 2013

Filed:

Feb. 26, 2007
Applicant:

Makoto Saotome, Kawasaki, JP;

Inventor:

Makoto Saotome, Kawasaki, JP;

Assignee:

Fujitsu Limited, Kawasaki, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08C 19/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A lock system that unlocks a lock with an unlock signal, prevents malfunction of locking or unlocking, and reduces power consumption of a receiving unit side that receives the unlock signal. The lock system avoids radio wave interference of the unlock signal and prevents malfunction of locking or unlocking by providing irregularity in a transmission timing of the unlock signal to a device that unlocks a lock with the unlock signal. In regard to a reception of the unlock signal, the lock system sets a receiving window by setting a reception-ON time and a reception-OFF time, and by stopping an operation of the receiving unit except during the reception-ON time, reduction of power consumption can be achieved.


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