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.

Date of Patent:
Jan. 14, 2025

Filed:

Apr. 20, 2023
Applicant:

Alps Alpine Co., Ltd., Tokyo, JP;

Inventors:

Hiroki Sato, Miyagi-ken, JP;

Yasuhiko Sato, Miyagi-ken, JP;

Hideki Yamazaki, Tokyo, JP;

Katsuaki Morishita, Miyagi-ken, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 5/01 (2006.01); G01R 15/20 (2006.01); G01R 19/00 (2006.01);
U.S. Cl.
CPC ...
H03K 5/01 (2013.01); G01R 15/205 (2013.01); G01R 19/0092 (2013.01);
Abstract

In a first correction process, a correction value T(0) is set as a median value between minimum and maximum correction values Tmin(0) and Tmax(0). A provisional adjustment value B=T(0)+Bini is input to the circuit section. A signal value output from the circuit section in accordance with the provisional adjustment value B is obtained by an A/D converter, and the magnitude relationship between the signal value and a target value is determined. When the signal value is smaller than the target value, a value that is smaller than the correction value T(0) by an error tolerance is set as a new minimum correction value Tmin(1). The median value between the minimum correction value Tmin(1) and the maximum correction value Tmax(1)=Tmax(0) is set as a next correction value T(1). In the next correction process, the provisional adjustment value B=T(1)+Bini is input to the circuit section.


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