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. 30, 2001
Filed:
May. 29, 1998
Gijsbert J. Van Den Enden, Eindhoven, NL;
Kornelis A. Schouhamer Immink, Eindhoven, NL;
U.S. Philips Corporation, New York, NY (US);
Abstract
An optical record carrier comprises a recording layer for recording information in a pattern of optically detectable marks in substantially parallel tracks. The tracks comprise alternating first and second servo tracks. The servo tracks have a track modulation different from the information pattern and indicative of position information. The position information in the first servo tracks, is encoded into m first words of channel bits and the position information in the second servo track, is encoded into n second words of channel bits where m and n are integers, and substantially all first and second words are different.