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. 22, 1997
Filed:
Sep. 13, 1994
Applicant:
Inventors:
Assignee:
SGS-Thomson Microelectonics, S.r.l., Agrate Brianza, IT;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
327 79 ; 327 65 ; 327 76 ;
Abstract
A zero-crossing circuit and method, in which the sign of inputs to a comparator is reversed after each zero crossing of the input signal. This means that delay introduced by the comparator does not affect the duty cycle of the output signal, so precision synchronization remains possible.