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:
Dec. 29, 1987
Filed:
Dec. 27, 1983
Applicant:
Inventors:
Assignee:
Tokyo Shibaura Denki Kabushiki Kaisha, Kawasaki, JP;
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
369 33 ; 369 43 ; 360 722 ;
Abstract
A record disc reproducing apparatus determines the magnitude and polarity of the difference between a preselected data address and a current data address and moves a pickup assembly in a direction to reduce that difference until it drops below a prescribed address tolerance. The amount of movement can either be a given distance or some fraction either of the difference between the current and prescribed data addresses, or of the breadth of a program portion.
Katayama, Yoshitaka. (1987). Record disc addressing apparatus (U.S. Patent No. 4716558). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4716558
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