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:
Sep. 11, 1984
Filed:
Mar. 19, 1982
Gary W Boone, Houston, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A variable function system utilizes a fixed program memory array such as a programmed read only memory in which a number of programs are stored depending upon the desired functions of the system. The system also includes a program counter, an instruction register, control decoders, jump-condition circuits, a clock generator, a timing generator, key input logic, data storage array, an arithmetic logic unit, an output decoder, and a digit scanner which scans both the keyboard and display outputs. The read only memory may be programmed so that the system provides a variety of functions. A preferred embodiment of the invention is capable of being fabricated as a monolithic integrated semiconductor system utilizing contemporary metal-insulator semiconductor techniques.