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:
Nov. 22, 2005
Filed:
Apr. 16, 1999
Takashi Kondoh, Chofu, JP;
Masaki Higurashi, Hino, JP;
Yasuhiro Komiya, Hino, JP;
Hidetoshi Yamada, Tokyo, JP;
Takashi Kondoh, Chofu, JP;
Masaki Higurashi, Hino, JP;
Yasuhiro Komiya, Hino, JP;
Hidetoshi Yamada, Tokyo, JP;
Olympus Optical Co., Ltd., Tokyo, JP;
Abstract
A digital evidential camera system is for detecting the alteration of image data obtained by photographing an object. The system comprises the camera and an alteration detection unit. The camera includes an image pickup unit for picking up an image of the object and an encryption processing unit for generating the alteration detection data using an encryption key built therein from the image data obtained by the image pickup unit. The alteration detection unit decrypts the alteration detection data using a decryption key corresponding to the encryption key, and detects whether the image data is altered based on the result of decryption.