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:
Nov. 28, 1995
Filed:
Sep. 13, 1994
Shigeaki Wachi, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
In a circuit and method for moving an optical pickup to a set target track on an optical disc, namely performing a track seek operation wherein, the address of a current track is detected with address information obtained from a playback signal from the optical disc, a reference value which is generated that chronologically changes while the optical pickup is being moved from the address of the current track to the address of the target track, an actuator for moving the optical pickup in the radial direction of the optical disc being driven so as to perform the seek operation at a high speed without requiring a speed sensor for sensing the speed of the moving optical pickup.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile