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:
Mar. 14, 1978
Filed:
Oct. 27, 1976
Applicant:
Inventor:
Charles P Grant, Jr, deceased, late of Dallas, TX (US);
Assignee:
Texas Instruments Incorporated, Dallas, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
364900 ;
Abstract
An electronic calculator or microprocessor system of the type preferably having keyboard input and a visual display is provided with a semiconductor chip having an arithmetic unit, a memory register and a dual speed shift register, the dual speed shift register being responsive to control signals generated on the chip for controlling the memory register to selectively read out a first or second number of digits of data stored therein to an input of the arithmetic unit.