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:
Feb. 16, 2021
Filed:
Oct. 29, 2019
Semiconductor Components Industries, Llc, Phoenix, AZ (US);
Takayasu Otagaki, Ota, JP;
Kazuyoshi Ishikawa, Kumagaya, JP;
SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC, Phoenix, AZ (US);
Abstract
Various embodiments of the present technology may comprise methods and apparatus for increased sensitivity of a capacitive proximity sensor. The method and apparatus may comprise a sense electrode and a drive electrode configured to create at least one inflection point corresponding to an increase or decrease in rate of change of capacitance within one or more sensing regions of the electrical field of the capacitive sensor. In alternative embodiments, the sense electrode may be configured to create multiple zones that may be used to indicate a desired signal such an upcoming replacement period and a replace now period.