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:
Apr. 26, 1977
Filed:
Nov. 13, 1975
Applicant:
Inventors:
Julius Dwight Jones, Wappingers Falls, NY (US);
Dale Milton Junod, Highland, NY (US);
Assignee:
IBM Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ; H03K / ;
U.S. Cl.
CPC ...
3401 / ; 2351 / ; 3401 / ;
Abstract
This specification describes an apparatus for determining if more than one of n lines are up at a given time. The apparatus includes means for encoding the n lines into m lines where n = 2.sup.m. Two encoding signals are generated; one, X.sub.0 X.sub.1 . . . X.sub.m, complement of the other, Z.sub.0 Z.sub.1 . . . Z.sub.m. These two signals are Ex OR'd in accordance with the formula (X.sub.0 Z.sub.0) .sup.. (X.sub.1 Z.sub.1) . . . (X.sub.m Z.sub.m). If more than one line is up, the resultant of the Ex OR operation is one. Otherwise the resultant is zero.