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. 18, 2001
Filed:
Feb. 22, 2000
Shyang-Tai Su, Folsom, CA (US);
Donald R Weiss, Ft Collins, CO (US);
Hewlett Packard Company, Palo Alto, CA (US);
Abstract
A circuit for signalling if any like ordered bits A,and B,in first and second binary words differ comprises a comparator for each pair of like ordered bits and a common terminal. Each comparator includes first and second FETs arranged so: (a) the first and second levels of A,are coupled to the common terminal via the first FET in response to B,having the first value, (b) the first and second levels of B,are coupled to the common terminal via the second FET in response to A,having the first value, (c) the first FET decouples A,from the common terminal and tends to cause the common terminal to be at the second level in response to B,having the second value, (d) the second FET decouples B,from the common terminal and tends to cause the common terminal to be at the second level in response to A,having the second value, and (e) the common terminal is at the second level only in response to A,[object Object]