Capacitance touch panel module and fabrication method thereof
US-9204539-B2 · Dec 1, 2015 · US
Capacitive sensing
US9531380B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9531380-B2 |
| Application number | US-201213537986-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 29, 2012 |
| Priority date | Mar 2, 2009 |
| Publication date | Dec 27, 2016 |
| Grant date | Dec 27, 2016 |
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- Title
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Abstract
Official abstract text for this publication.
A multi-channel capacitive sensor comprises a sample capacitor having first and second terminals, a first diode having a first terminal coupled to the second terminal of the sample capacitor and a second terminal coupled to a first sense electrode, and a second diode having a first terminal coupled to the second terminal of the sample capacitor and a second terminal coupled to a second sense electrode. The sample capacitor and diodes are coupled to a control circuit. The control circuit is operable to apply a drive signal to the first terminal of the sample capacitor while simultaneously applying a bias signal to the second terminal of one or other of the diodes to prevent the diode from conducting the drive signal.
First claim
Opening claim text (preview).
The invention claimed is: 1. A multi-channel capacitive sensor comprising: a sample capacitor coupled to a first sense electrode and to a second sense electrode, the first sense electrode associated with a first sense capacitor and a first diode and the second sense electrode associated with a second sense capacitor and a second diode, the first sense capacitor being distinct from the second sense capacitor, the sample capacitor configured for use in measuring a capacitance of the…
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Physics · mapped topic
- H03K17/9622Primary
Electricity · mapped topic
Electricity · mapped topic
Physics · mapped topic
Physics · mapped topic
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Frequently asked questions
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- What does patent US9531380B2 cover?
- A multi-channel capacitive sensor comprises a sample capacitor having first and second terminals, a first diode having a first terminal coupled to the second terminal of the sample capacitor and a second terminal coupled to a first sense electrode, and a second diode having a first terminal coupled to the second terminal of the sample capacitor and a second terminal coupled to a second sense el…
- Who is the assignee on this patent?
- Dubery John Stanley, Atmel 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 Dec 27 2016 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).