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:
Mar. 08, 1994
Filed:
Feb. 10, 1992
Applicant:
Inventor:
Sydney Urshan, Los Angeles, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K / ; G06K / ;
U.S. Cl.
CPC ...
235454 ; 235487 ; 235436 ;
Abstract
A digital data recording and playback system which includes an optical recording and playback head for recording and reproducing digital data onto and from a stationary optical storage card. The head contains a multiplicity of miniature laser cells mounted in rows and columns and directed to a surface of the stationary optical storage card. The head may be operated in any one of three modes, namely a record mode in which data is recorded on the card; a playback mode in which data recorded on the card is reproduced; and an erase mode in which data recorded on the card is completely or partially erased.