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:
Nov. 09, 1999
Filed:
Dec. 12, 1997
Applicant:
Inventors:
Akihiko Toda, Hamamatsu, JP;
Masao Noro, Hamamatsu, JP;
Assignee:
Yamaha Corporation, Hamamatsu, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
327 86 ; 327 77 ; 327307 ;
Abstract
An information-discriminating circuit has a biasing device that superposes bias voltage on an input signal, and a comparator that discriminates information by comparing an output signal from the biasing device with a threshold value. The difference between the bias voltage and the threshold value is continuously adjusted such that a noise margin is varied according to the amplitude of the input signal.