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:
Feb. 05, 1985
Filed:
Jul. 02, 1980
Tetsuo Akiyama, Saitama, JP;
Universal Pioneer Corporation, Tokyo, JP;
Abstract
A method and apparatus for operating a data recording medium reproducing device in which a pick-up device reads address data from a recording medium such as a video disc. The read off data is compared with a supply desired address data to form a signal which represents whether the present position is inside, outside, or coincident with the desired position. A sequence controller operates in response to the output of the comparison to drive coarse and fine adjustment devices which position the pick-up device successively until the desired position or a position within the vicinity of desired position is reached.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile