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. 08, 1992
Filed:
Nov. 01, 1991
Applicant:
Inventor:
Hiroyasu Muto, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M / ; H03M / ;
U.S. Cl.
CPC ...
341118 ; 341155 ;
Abstract
The offset from the ideal value for the bias voltage to be added to the input signal to the A/D converter and the offset from the ideal value of the average voltage in the analog signal are detected. The detected offset is substracted from the output data of the A/D converter. Alternately, the bias voltage may be changed by the detected offset so that the average voltage of the input signal to the A/D converter is equal to the ideal value.