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. 09, 1977
Filed:
Aug. 04, 1975
Applicant:
Inventor:
Francis C Foote, Rocky River, OH (US);
Assignee:
Addressograph Multigraph Corporation, Cleveland, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K / ; G06K / ; G06K / ;
U.S. Cl.
CPC ...
235 / ; 235 / ; 235 / ;
Abstract
A device is provided for reading optical and magnetic data and providing signals representative thereof, said device including means for establishing a predetermined time or spacial reference between the optical and magnetic data sets. In one embodiment the optical and magnetic read heads are mounted in parallel alignment with the path of document travel to reduce timing errors due to skewing. In a second embodiment the heads are mounted side-by-side such that timing errors due to speed variations and thermal expansions are reduced.