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:
Jul. 11, 2006
Filed:
Sep. 06, 2000
Yasumasa Nakajima, Nagano, JP;
Kazuto Mogami, Nagano, JP;
Yasumasa Nakajima, Nagano, JP;
Kazuto Mogami, Nagano, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
In step S, an electrical signal output from an CCD is converted into a digital signal. In step S, digital data output from an analog-to-digital converter are recorded in RAM. In step S, the data recorded on RAM are subjected to various image correction. In steps Sthrough S, the data corrected in step Sare compressed in accordance with a JPEG compression scheme. In step S, there is determined a location in which characteristic data are to be embedded. In step S, characteristic data are produced from image data. In step S, encrypted data are formed by encrypting characteristic data. In step S, encrypted characteristic data are embedded into image data.