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:
Oct. 26, 1999
Filed:
Nov. 12, 1997
Tohru Kadono, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
A disc reproducing device for detecting the position of a reproducing head along the radius of a disc for transferring the head to a targeted radial position on a disc. Since the radial position on the disc in which the optical pickup is positioned can be known prior to actuation of a variety of spindle servo functions, there is no necessity of reading out an address. As compared to a conventional device in which an optical pickup is transferred based on the address reproduced from the disc, access control can be realized more speedily. There is also no necessity of providing a imit switch for detecting the inner peripheral position.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile