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:
Apr. 09, 1996
Filed:
Dec. 20, 1994
Michael G Fairchild, Webster, NY (US);
Gzim Derti, Dansville, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
A method for detecting and processing ATIP information extracted from a prerecorded wobbled groove formed in a compact disk is disclosed. The prerecorded wobbled groove has a plurality of blocks of information. The method includes extracting an FM signal from the wobbled groove and providing a high frequency phase-lock loop which responds to the extracted FM signal to produce a high frequency clock. The method further includes converting such FM signal into biphase data by sampling and latching the FM ATIP signal from the wobbled groove; and digitally comparing a predetermined count value to a count value derived from the high frequency clock and the FM signal. It further includes extracting a clock signal from a digital phase-lock loop responsive to the biphase data; and providing an ATIP decoder which in response to the biphase data, biphase clock, and high frequency clock signal provides sync detection and address information.