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:
Feb. 21, 2006
Filed:
Jul. 18, 2000
Kazuhiro Yanase, Tokyo, JP;
Kazuhiro Yanase, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
In a position authentication system and electronic equipment used for the same, image data photographed by a digital cameraare written into storage device, and at the same time GPS electric waveis received by GPS receiverto generate latitude/longitude information. The GPS receiverencrypts the latitude/longitude information, and transmits this information as position information to center system. The storage devicestores copy-guarded place-specifying data transmitted from the center system. The center systemdecodes the position informationinput from the digital camera, and specifies the place on the basis of the latitude/longitude information thus obtained to generate place-specifying data. The place-specifying data thus generated are subjected to copy guard-processing and then transmitted to the digital camera. Accordingly, it is guaranteed that the image data stored in the storage devicewas photographed at the place indicated by the place-specifying data and the image data was not photographed at another place.