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:
Dec. 14, 1976
Filed:
Mar. 19, 1975
Applicant:
Inventor:
Charles Norris Judice, Lincroft, NJ (US);
Assignee:
Bell Telephone Laboratories, Incorporated, Murray Hill, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ; G08B / ;
U.S. Cl.
CPC ...
178 / ; 3151 / ; 3403 / ;
Abstract
Bi-level display systems capable of presenting gray-scale images are adapted for brightness and contrast control by circuitry which varies the means and deviation of the threshold values assigned to the cells of the display panel.
Judice, Charles. (1976). Bi-level display systems (U.S. Patent No. 3997719). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/3997719
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile