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:
Jun. 15, 1976
Filed:
Mar. 14, 1974
Applicant:
Inventors:
Roland Malissin, Paris, FR;
Lucien Lainez, Paris, FR;
Assignee:
Thomson-Brandt, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
178 / ; 178 / ; 178 / ; 1791 / ; 1791 / ;
Abstract
A pick-up device particularly suitable for optical read-out of video-frequency discs, comprising a fixed pick-up and a mobile plate, element of which, carrying the recording substrate, is mobile. The transfer of the recording tracks before the pick-up is produced by a rotational movement on the part of the carrier element, in association with a rectilinear displacement d.sub.1 on the part of said carrier element in relation to the fixed pick-up, this displacement being associated with the rotational speed of the carrier element and with the pitch of the recording tracks.