Interactive touch system and light source device
US-2015309664-A1 · Oct 29, 2015 · US
Focus-based touch and hover detection
US9477348B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9477348-B2 |
| Application number | US-201113088152-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 15, 2011 |
| Priority date | Apr 15, 2011 |
| Publication date | Oct 25, 2016 |
| Grant date | Oct 25, 2016 |
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Abstract
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Embodiments of the present invention disclose a system and method for focus-based touch detection. According to one embodiment, a reference pattern is formed on a surface and an imaging device is configured to detect the reference pattern and the presence of an object within proximity of a contact area of the surface. Furthermore, focus information associated with the reference pattern and/or object is used to determine if the detected object is touching or hovering said contact area.
First claim
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What is claimed is: 1. A system for providing focus-based touch detection in a computing system, the system comprising: a surface having a reference pattern formed thereon; an imaging device including a field of view capable of simultaneous capture of an image of the reference pattern and an object positioned within proximity of a designated contact area associated with the surface; a processing unit to compare a focus-depth of the reference pattern a focus-depth of the object…
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- G06F3/0425Primary
Physics · mapped topic
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- What does patent US9477348B2 cover?
- Embodiments of the present invention disclose a system and method for focus-based touch detection. According to one embodiment, a reference pattern is formed on a surface and an imaging device is configured to detect the reference pattern and the presence of an object within proximity of a contact area of the surface. Furthermore, focus information associated with the reference pattern and/or o…
- Who is the assignee on this patent?
- Sobel Irwin E, Tan Kar-Han, Hewlett Packard Development Co Lp
- What technology area does this patent fall under?
- Primary CPC classification G06F3/0425. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Oct 25 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).