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:
Sep. 29, 1981
Filed:
Apr. 21, 1980
Applicant:
Inventors:
Philip M Heyman, Robbinsville, NJ (US);
David P Bortfeld, Kendall Park, NJ (US);
Assignee:
RCA Corporation, New York, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06K / ;
U.S. Cl.
CPC ...
235454 ; 235419 ; 235464 ;
Abstract
An apparatus and method for reading an identifying label on an information record where the label consists of alternating regions of the record surface having different surface effects. The apparatus comprises a light source, collimating optics, focusing optics to focus a portion of the light beam scattered from the record surface on a multi-element light detector whose elements are successively read out to form a serial electrical signal representative of the label, and electrical means for reading out the detected light signal. The apparatus has sufficient sensitivity and accuracy to read out a black-on-black label.