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. 12, 2006
Filed:
Oct. 14, 2004
Koji Asami, Tokyo, JP;
Kiyoshi Hashiba, Tokyo, JP;
Koji Asami, Tokyo, JP;
Kiyoshi Hashiba, Tokyo, JP;
Advantest Corporation, Tokyo, JP;
Abstract
An analog-to-digital converting method for converting an analog signal into a digital signal is provided, wherein the analog-to-digital converting method includes a measuring step of measuring a frequency characteristic of each of analog-to-digital converters in advance, a sampling step of sampling the analog signal, a Fourier transformation step of performing Fourier transformation on the data sampled by the plurality of analog-to-digital converters and generating a plurality of frequency domain signals, a correcting step of converting each of the frequency domain signals into a signal to be acquired in case that the frequency characteristic of corresponding analog-to-digital converter is ideal, by multiplying each of the frequency domain signals by a correction coefficient determined on the basis of the frequency characteristics of all the analog-to-digital converters, and a synthesizing step of synthesizing each of the frequency domain signals acquired at the correcting step and generating a frequency spectrum of the digital signal.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile