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. 21, 2021
Filed:
Sep. 22, 2020
Asahi Kasei Microdevices Corporation, Tokyo, JP;
Shota Konno, Tokyo, JP;
Asahi Kasei Microdevices Corporation, Tokyo, JP;
Abstract
A successive approximation analog-digital (AD) converter and method performed by the converter are provided. The successive approximation AD converter comprises a digital-analog (DA) converter; a comparator which determines a magnitude relation between an input signal and an output signal of the DA converter; and a successive approximation register which generates a first digital signal based on a determination result. The method comprises: switching an operation selection signal from a first logic to a second logic; performing a logical operation so that a digital signal input to the DA converter has a larger value or a smaller value than the first digital signal, when the operation selection signal has transited to the second logic, based on a portion of the determined first digital signal until transition; and inputting the first digital signal to the DA converter when the operation selection signal is the first logic.