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. 17, 2002
Filed:
Mar. 24, 2000
Masayuki Kawabata, Tokyo, JP;
Advantest Corporation, Tokyo, JP;
Abstract
Analog-to-digital (A-D) converting apparatus ( ) for calibrating a time error includes: an analog signal input portion ( ); a plurality of analog-to-digital converters ( ); a sampling clock signal generator ( ) which supplies either a synchronous sampling clock signal or an alternate sampling clock signal; an averaging processing unit ( ) which performs the averaging process on a digital signal output from the A-D converters, based on the synchronous sampling clock signal; and an interleave processing unit ( ) which interleaves a digital signal output from the sampling operated A-D converters, based on the alternate sampling clock signal. The A-D converting apparatus includes an error calculation unit ( ) for calculating the time error, and an error calibration value calculating unit ( ) and an error calibrating unit ( ) which performs calibration operation. Method of calibrating an error caused between a plurality of the A-D converters.