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. 11, 1981
Filed:
May. 14, 1979
Donald J Curry, Los Altos, CA (US);
Gordon R Knight, Cupertino, CA (US);
Daniel C Kowalski, Portola Valley, CA (US);
Xerox Corporation, Stamford, CT (US);
Abstract
The output beam of a read laser for an optical memory is diffracted to provide a plurality of read beams of substantially equal intensity for simultaneously scanning all of the data tracks of a selected data channel with a different one of the read beams, whereby each of the read beams is optically modulated in accordance with the data recorded on a respective one of the data tracks. The optically modulated read beams are applied to respective detectors, whereby the data recorded on the different data tracks is simultaneously converted into corresponding video electrical signals. Those signals are, in turn, output selectively or in parallel.