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. 08, 2001
Filed:
Jul. 16, 1999
Applicant:
Inventor:
Yoshio Nishida, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03M 1/38 ;
U.S. Cl.
CPC ...
H03M 1/38 ;
Abstract
An A/D converter for converging an input analogue signal to a digital signal includes a reference voltage generator, a comparator and an encoder. The comparator comparing a plurality of reference voltages with the input analogue signal includes a first switch to which the analogue signal is input, an array of second switches connected between the reference voltages and a charge capacitor, and a comparator having an input connected to the charge capacitor and an output connected to the input of the comparator, and an encoder for encoding an output signal of the comparator.