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:
Jan. 17, 2006
Filed:
Aug. 06, 2004
Chun Wei Lin, Changhua, TW;
Chun Wei Lin, Changhua, TW;
Spirox Corporation, Hsinchu, TW;
Abstract
A built-in-self-test apparatus for an analog-to-digital converter includes a digital-to-analog converter, a low-pass filter, a histogram analyzer and a software engine. The digital-to-analog converter is intended to generate a first signal. The low-pass filter is intended to smoothen the first signal so that an analog-to-digital converter can perform sampling on the smoothened first signal by a second signal, wherein the bit number of the second signal is greater than or equal to that of the first signal, and the frequency of the second signal is a multiple of that of the first signal. The histogram analyzer is electrically connected to the output end of the analog-to-digital converter. The software engine is electrically connected to the output end of the histogram analyzer so as to display the characteristics of the analog-to-digital converter.