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:
May. 17, 2011
Filed:
Jul. 25, 2008
Chun-te Wu, Taoyuan County, TW;
Chih-hao Liu, Taichung, TW;
Po-chang Chen, Taipei County, TW;
Chia-hang Ho, Taipei, TW;
Chien-fu Tseng, Yunlin County, TW;
Feng-hsiang Lo, Hsinchu County, TW;
Chun-Te Wu, Taoyuan County, TW;
Chih-Hao Liu, Taichung, TW;
Po-Chang Chen, Taipei County, TW;
Chia-Hang Ho, Taipei, TW;
Chien-Fu Tseng, Yunlin County, TW;
Feng-Hsiang Lo, Hsinchu County, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
A holographic recoding medium is provided, having holographic pages. Each page has reference mark (RM) placement areas at fixed locations for placing RM patterns. The reference marks are used to calibrate data images of data areas each of which is enclosed by at least three RM regions. Hidden information of the medium is stored by an specific encoded pattern based on existence, types and arrangements of the RM marks.