Initializing a capacitive sensing switch for a wireless device

US9130571B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9130571-B2
Application numberUS-77646707-A
CountryUS
Kind codeB2
Filing dateJul 11, 2007
Priority dateJul 11, 2007
Publication dateSep 8, 2015
Grant dateSep 8, 2015

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Abstract

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An apparatus, system, and method that initialize a capacitive sensing switch and detects a pushed button are described. The apparatus comprises a keypad, a logic component, an initialization threshold, a measured capacitive value, and a processor. The keypad comprises at least one capacitive sensing switch. The logic component is configured to determine a capacitive sensing range for each capacitive sensing switch, wherein the range corresponds to the difference between the maximum and minimum capacitance. Each capacitive sensing switch is initialized when the capacitive sensing range exceeds the initialization threshold. The measured capacitive value measures the capacitive value for each switch and a corresponding push-button threshold determines whether the button has been pushed. The processor is configured to process computer instructions that correspond to each switch when the capacitive sensing range exceeds the initialization threshold and when the measured capacitive value for each capacitive sensing switch exceeds the push-button threshold.

First claim

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What is claimed is: 1. An apparatus for initializing a capacitive sensing switch and detecting a pushed button, the apparatus comprising: a keypad associated with a wireless device, wherein the keypad comprises a plurality of capacitive sensing switches; a logic component determines a capacitive sensing range for each capacitive sensing switch of the plurality of capacitive sensing switches, wherein the capacitive sensing range corresponds to a difference between a maximum capa…

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What does patent US9130571B2 cover?
An apparatus, system, and method that initialize a capacitive sensing switch and detects a pushed button are described. The apparatus comprises a keypad, a logic component, an initialization threshold, a measured capacitive value, and a processor. The keypad comprises at least one capacitive sensing switch. The logic component is configured to determine a capacitive sensing range for each capac…
Who is the assignee on this patent?
Thoma Jeffrey M, Kyocera Corp
What technology area does this patent fall under?
Primary CPC classification H03K17/9622. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Sep 08 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).