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:
Jul. 11, 2000
Filed:
Jan. 09, 1998
Hisao Katoh, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
An optical disc device is provided with a channel phase-locked loop (channel PLL) for generating a read clock signal and a wobble phase-locked loop (wobble PLL) for generating a write clock signal. A frequency divider divides the frequency of the write clock signal from the wobble PLL by a predetermined number n so as to generate a pseudo channel data. A selector selects the pseudo channel data and then furnishes the selected pseudo channel data to the channel PLL when the optical disc device handles a not-yet-recorded area between two adjacent header areas on an optical disc where no data is recorded. The channel PLL locks itself with the pseudo channel data from the selector.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile