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:
Jul. 13, 1982
Filed:
Sep. 25, 1980
Applicant:
Inventor:
Horst H Biedermann, Augsburg, DE;
Assignee:
NCR Corporation, Dayton, OH (US);
Primary Examiner:
Int. Cl.
CPC ...
B41J / ;
U.S. Cl.
CPC ...
400124 ; 400 74 ; 400711 ;
Abstract
An optical sensor is provided for each print wire of a print head and includes two glass fibers to carry light from a light-emitting diode to the surface of a record medium and to carry the reflected light to a photodiode. Each printed dot is detected and the sensor output is compared with a delayed or stored print signal which is applied to the drivers for the print wires.
Biedermann, Horst. (1982). Optical sensing of wire matrix printers (U.S. Patent No. 4339208). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4339208
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile