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:
May. 22, 1984
Filed:
May. 14, 1981
Duane Solimeno, Newington, CT (US);
Sammy K Brown, Midland, TX (US);
Peter L Koeppen, Houston, TX (US);
Gerald Rogers, Sugarland, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
An electronic apparatus with processing capability dedicated to the display function. This apparatus includes a keyboard for inputting data into the processor system and a display for presentation of the output data from the processor system. The electronic digital processor system includes a memory, an arithmetic and logic unit and two central processing units that operate independently and simultaneously. The keyboard input is connected to one central processing unit and the display is connected to the second central processing unit. The algorithm in the first central processing unit is dedicated to obtaining inputs from the keyboard and performing certain operations defined by the function of the apparatus. The algorithm contained in the second central processing unit is dedicated to the display of output data contained in a RAM in the digital processor system. Since both central processing units operate simultaneously and independently, they both use the same locations in RAM. This characteristic provides for the continuous updating of the display by the second central processing unit at the same time the function output data is being formulated by the first central processing unit.