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:
Aug. 21, 1979
Filed:
Mar. 19, 1976
Richard A Hathaway, Saratoga, CA (US);
Ampex Corporation, Redwood City, CA (US);
Abstract
A magnetic head supported for scanning along tracks of a magnetic medium is mounted on a piezoelectric bender element for movement laterally relative to the tracks as they are scanned. As the head scans a track, the relative position between the track to be reproduced and the head is sensed to determine the tracking position of the heads. A bias control signal is generated by a servo circuit and applied to energize the piezoelectric bender element to position the head relative to the track to maintain the head in the desired tracking position as it scans the magnetic medium.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile