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:
Jan. 22, 2002
Filed:
Sep. 01, 1998
Nobuyoshi Miyahara, Kanagawa, JP;
Yoichi Yagasaki, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
A device and method for processing image data, a transmitting medium, and a recording medium are disclosed. More particularly, in image data processing by which accompanying information is embedded as a watermark into coded image data, a position in a block as a unit of coding the coded image data is detected, a blocked watermark pattern is provided, an area in which an operation relative to a first level value is performed and an area in which an operation relative to a second level value is performed are offered, and a watermark is appended to the coded image data in accordance with the blocked watermark pattern. It is thus possible to easily append a watermark that can be certainly detected.