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:
Mar. 25, 2014
Filed:
Oct. 18, 2010
Takuya Osaki, Sakura, JP;
Yuichiro Yamaguchi, Sakura, JP;
Yuki Noguchi, Sakura, JP;
Koji Sakiyama, Sakura, JP;
Takuya Osaki, Sakura, JP;
Yuichiro Yamaguchi, Sakura, JP;
Yuki Noguchi, Sakura, JP;
Koji Sakiyama, Sakura, JP;
Fujikura Ltd., Tokyo, JP;
Abstract
A headrest position adjustment device includes a capacitance sensor unit, and a drive motor unit. The capacitance sensor unit includes a plurality of electrode groups each configured by a plurality of sensing electrodes. The total electrode area of each of the electrode groups is switchable by a switching unit of a circuit unit between at least a total electrode area A and a total electrode area A+B. The total electrode area A is selected when the distance d between a head and a headrest is short, and the total electrode area A+B is selected when the distance is long. In this way, the sensitivity is changed depending on how long or how short the distance is. An estimated center position of the head is calculated based on capacitance values obtained, and thereby the position of the headrest is adjusted.