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.

Date of Patent:
Jul. 08, 1980

Filed:

Mar. 07, 1978
Applicant:
Inventors:

Kenneth A Huelsman, Carlsbad, CA (US);

Allen A Harano, Oceanside, CA (US);

Assignee:

Hughes Aircraft Company, Culver City, CA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ; H04N / ;
U.S. Cl.
CPC ...
364515 ; 358112 ; 358166 ; 358167 ;
Abstract

A digital scan converter is provided with a programmable transfer function for video display of picture elements (pixels) using a main random access memory for storing a pixel array to be read out periodically for display, and to be selectively read out while scanning for updating with a value derived from an auxiliary random access memory addressed by the composite of an old pixel value to be updated and the new pixel value. Each memory location of the auxiliary memory stores a value derived from a table defining the transfer function desired for the entire range of new and old pixel values. An alternate transfer function is stored in a second block of the memory and selectively called out by a prefix set to a 1 or 0 in the most significant bit position of the composite address word.


Find Patent Forward Citations

Huelsman, Kenneth. (1980). Digital scan converter with programmable transfer function (U.S. Patent No. 4212072). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4212072

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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