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:
Jul. 16, 2019
Filed:
Feb. 23, 2017
Applicant:
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/044 (2006.01);
U.S. Cl.
CPC ...
G06F 3/044 (2013.01); G06F 2203/04108 (2013.01);
Abstract
An operation switch includes: an electrostatic capacitance sensor that generates a sensing signal in response to approach or contact of an object; and a controller that determines whether or not the object is a human body in accordance with the sensing signal. The controller determines that the object is not a human body, when (A) a magnitude of the sensing signal is larger than a first threshold at a first time point, (B) a rate of change in the magnitude of the sensing signal in a first period is larger than a first rate, and (C) the magnitude of the sensing signal does not fall below a second threshold in a second period subsequent to the first period.