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. 05, 1996
Filed:
Sep. 11, 1995
Applicant:
Inventors:
Assignee:
Victor Company of Japan, Ltd., Yokohama, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
3692754 ; 369 58 ; 369 54 ; 369 47 ; 369 4426 ;
Abstract
An optical disc has a sequence of pits which extends along a track. The pit sequence represents a recorded signal divided into data blocks. The pit sequence includes a normal pit train and an unusual pit train. The normal pit train is symmetrical with respect to a center of the track. The unusual pit train is different from the normal pit train in at least one of shape and pit arrangement. The unusual pit train is at a position having a predetermined relation with the data blocks.
Ozaki, Kazuhisa. (1996). Optical disc, device for checking optical disc, and device for recording (U.S. Patent No. 5572507). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5572507
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile