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. 08, 1980
Filed:
May. 24, 1978
Applicant:
Inventor:
Robert S Hopkins, Jr, Marlton, NJ (US);
Assignee:
RCA Corporation, New York, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
340723 ; 340744 ; 340742 ; 340793 ; 340728 ;
Abstract
A 2-level quantized video signal, composed of background level and character-pattern delineating level time intervals in which transitions between levels only occur at an end of one or more elemental timing periods, is modified to a 3-level quantized video-signal in which the difference between the character-pattern delineating and background levels is increased for at least one of the first and last entire elemental timing periods of the duration of each occurring character-pattern delineating level interval.
Hopkins, Jr, Robert. (1980). Circuit for displaying characters on limited bandwidth, raster scanned (U.S. Patent No. 4212008). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4212008
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile