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:
Feb. 09, 2001
Applicants:
Satoe Okayasu, Ohmiya, JP;
Takashi Shinoda, Nagareyama, JP;
Hiroshi Asakai, Hadano, JP;
Inventors:
Assignee:
Hitachi, Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L009/00 ;
U.S. Cl.
CPC ...
Abstract
A browserof a mark user clientobtains Web pagefrom a mark provider serverand displays it. Then control is transferred to a mark reference programwhen a mark is detected, and the program extracts digital watermark information from a mark image. This digital watermark information comprises referred data, and an action definition that includes an action class and an index of the referred data as a parameter. The mark reference programrefers to this action definition, refers to required data through the index included in the action definition, and then performs processing defined by the action class.