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. 14, 1998
Filed:
Feb. 03, 1997
Applicant:
Inventors:
Fumihiko Yokogawa, Tsurugashima, JP;
Hideki Hayashi, Tsurugashima, JP;
Assignee:
Pioneer Electronic Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
3692753 ; 3692754 ; 369 13 ;
Abstract
An optical disk having a recording format for a sampled servo system and including a servo field which is preformatted, including synchronous marks for synchronizing detection, and a data field for recording data on each track. The length of the synchronous mark is defined to render the detection of the synchronous pattern possible by making it easily distinguishable from the maximum inversion interval in the data even if the optical disk is of the constant-linear-velocity (CLV) type.
Yokogawa, Fumihiko. (1998). Spindle servo circuit in an apparatus for playing an optical disk having (U.S. Patent No. 5740152). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5740152
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile