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:
May. 06, 2003
Filed:
Oct. 05, 2000
Yukihisa Nakajo, Hamamatsu, JP;
Yamaha Corporation, Hamamatsu, JP;
Abstract
In an optical disc recording method conducted by irradiating an optical beam for recording onto an optical disc to form pits on the lands thereof, when a recording speed is lower than a predetermined recording speed, the sampling/holding operation of a light receiving signal for detecting a wobble signal is performed during a power-off period of a recording signal. On the other hand, when the recording speed is higher than the predetermined recording speed, the sampling/holding operation is performed during a power-on period of the recording signal. Therefore, a wobble signal can be detected at all times at good C/N ratio independently of the speed recording.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile