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:
May. 16, 1995
Filed:
Sep. 01, 1993
Applicant:
Inventors:
Edison Fong, Sunnyvale, CA (US);
Bill C Wong, Milpitas, CA (US);
Assignee:
National Semiconductor Corporation, Santa Clara, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
327 65 ; 327 63 ; 327 89 ;
Abstract
The comparison circuitry of a comparator is isolated from noise on the power supply and ground by utilizing transistors operating in the forward-active region to isolate the comparison circuitry. The comparison circuitry is further isolated from random noise spikes by utilizing delay and switching circuitry to control the duration of the comparison.