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:
Nov. 11, 1997
Filed:
Dec. 11, 1995
Nobuya Uda, Itami-shi, JP;
Mitsubishi Electric Semiconductor Software Co., Ltd., Hyogo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
An analog-to-digital converter includes a comparator for comparing a voltage output by a digital-to-analog converter with an input analog voltage at each bit of an n-bit word. The input analog voltage and the analog output voltage of the digital-to-analog converter are alternatingly used as the reference in the comparison, i.e., for every other bit of the n bits. A one-bit result-of-comparison signal indicative of the result of the comparison is output for each of the n bits. Only alternating result-of-comparison signals are inverted and the inverted and non-inverted result-of-comparison signals are stored in a successive approximation register as the converted digital signal and are supplied to the digital-to-analog converter for use in the comparison.