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:
Dec. 24, 2002
Filed:
Mar. 15, 2000
Applicant:
Inventors:
Noboru Sugie, Chofu, JP;
Akihiro Niimura, Sunnyvale, CA (US);
Assignee:
Mitsumi Electric Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 7/00 ;
U.S. Cl.
CPC ...
G11B 7/00 ;
Abstract
An optical disk device has a motor that rotates an optical disk, motor control means for making constant a rotational speed of the motor, and write control means for changing a write frequency of information written to the optical disk such that writing of the information onto the optical disk is made at a substantially constant recording density, irrespective of a track on which the information is recorded.
Sugie, Noboru. (2002). Optical disk drive and write speed control method (U.S. Patent No. 6498773). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6498773
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile