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. 11, 1986
Filed:
Apr. 01, 1983
Donald C Boothroyd, Phoenix, AZ (US);
Robert W Norman, Jr, Glendale, AZ (US);
Honeywell Information Systems Inc., Phoenix, AZ (US);
Abstract
The present invention relates to digital logic circuitry for detecting a predetermined character of a data string for operand data stored in a temporary storage memory or while the data is being loaded into the temporary storage memory, wherein the data string length and the starting location of temporary storage memory in which the data string is to be stored is variable. A first comparator element compares a write address pointer to a start address pointer and an adder generates a sign pointer which indicates an address of temporary storage memory of the predetermined character. A second comparator element utilizes the pointers and the resultant outputs of the first comparator and the adder to indicate the end of the data string.