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:
Jun. 12, 2007
Filed:
Oct. 08, 2004
Applicants:
Akira Shinada, Tokyo, JP;
Kenji Matsumura, Tokyo, JP;
Inventors:
Akira Shinada, Tokyo, JP;
Kenji Matsumura, Tokyo, JP;
Assignee:
Sony Corporation, , JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08B 13/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
In the present invention, any change of devices in possession by a user who gets on or gets off, for example, a vehicle is detected by comparing the devices detected by wireless communication at the time of getting on or getting off, thereby enabling the easy and sure prevention of any personal belongings of the passenger from being lost or left without constantly monitoring them. The property management apparatus sums up in time series the detection results by the plurality of property detection apparatuses for notifying the user the place of where the user loses the property.