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:
Jun. 17, 1986
Filed:
Apr. 25, 1983
Applicant:
Inventors:
Kenneth S Morley, West Valley City, UT (US);
Gregory B Wiedenman, Sandy, UT (US);
James K White, Sandy, UT (US);
Assignee:
Sperry Corporation, New York, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ; G06F / ;
U.S. Cl.
CPC ...
364900 ; 364521 ; 340799 ; 340800 ; 340801 ;
Abstract
A video display control circuit, for an intelligent terminal, includes a large cost efficient Random-Access Memory (RAM). A portion of the RAM memory is utilized as a high speed character generator instead of employing a dedicated Read Only Memory (ROM). Novel timing and memory control circuits are provided which permit characters to be generated witout any delay or change of real character timing. The characters in RAM may be modified or changed which is not possible with dedicated Read Only Memories.