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:
Apr. 07, 1998
Filed:
Feb. 08, 1996
Applicant:
Inventor:
Frederick Rockwell Chamberlain, IV, Vista, CA (US);
Assignee:
Eastman Kodak Company, Rochester, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K / ;
U.S. Cl.
CPC ...
235449 ; 235462 ; 235493 ;
Abstract
A medium having an information pattern encoded as changes in two values of a medium characteristic, including start and end key patterns which have characteristic value changes spaced a fixed distance apart, and including intermediate characteristic value changes, which, with the key patterns, encode information. Two sensors are spaced from each other the fixed distance for sensing the medium characteristic value changes as the medium and the sensors are moved relatively to each other, and for producing signals representative thereof. Circuitry for processing the signals from the sensors to produce an information signal is provided.