Acoustic position tracking system
US-9201522-B2 · Dec 1, 2015 · US
Acoustic touch apparatus and methods using touch sensitive lamb waves
US9507464B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9507464-B2 |
| Application number | US-201313873007-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 29, 2013 |
| Priority date | Mar 15, 2013 |
| Publication date | Nov 29, 2016 |
| Grant date | Nov 29, 2016 |
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Abstract
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Systems and related methods providing for touch sensors using high sensitivity Lamb waves are disclosed herein. A touch apparatus may include a substrate having a front surface and a back surface, where the touch region is on the front surface. The touch apparatus may be configured to propagate surface acoustic waves on at least a portion of the back surface and high sensitivity lamb waves, such as near-longitudinal-resonance Lamb waves, in at least a portion of the touch region of the substrate. The touch system may further include circuitry configured to determine a location of a touch on the front surface based on received attenuations in the high sensitivity Lamb waves. Some embodiments may provide for bezel-less touch sensor designs and anti-dispersion techniques that enhance touch sensor reliability.
First claim
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That which is claimed: 1. A touch apparatus, comprising: a substrate having a front surface with a touch region and a back surface, the touch apparatus configured to propagate surface acoustic waves on at least a portion of the back surface and near-longitudinal-resonance Lamb waves converted from the surface acoustic waves in at least a portion of the touch region of the substrate, wherein: the near-longitudinal-resonance Lamb waves propagate through the touch region with a phas…
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- G06F3/0436Primary
Physics · mapped topic
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- What does patent US9507464B2 cover?
- Systems and related methods providing for touch sensors using high sensitivity Lamb waves are disclosed herein. A touch apparatus may include a substrate having a front surface and a back surface, where the touch region is on the front surface. The touch apparatus may be configured to propagate surface acoustic waves on at least a portion of the back surface and high sensitivity lamb waves, suc…
- Who is the assignee on this patent?
- Elo Touch Solutions Inc
- What technology area does this patent fall under?
- Primary CPC classification G06F3/0436. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Nov 29 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).