Touch sensing unit and display device including the same
US-12164734-B2 · Dec 10, 2024 · US
Simultaneous sensing arrangement
US8928617B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8928617-B2 |
| Application number | US-201314019264-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 5, 2013 |
| Priority date | Jan 3, 2007 |
| Publication date | Jan 6, 2015 |
| Grant date | Jan 6, 2015 |
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Abstract
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Multi-touch touch-sensing devices and methods are described herein. The touch sensing devices can include multiple sense points, each located at a crossing of a drive line and a sense line. In some embodiments, multiple drive lines may be simultaneously or nearly simultaneously stimulated with drive signals having unique characteristics, such as phase or frequency. A sense signal can occur on each sense line that can be related to the drive signals by an amount of touch present at sense points corresponding to the stimulated drive lines and the sense line. By using processing techniques based on the unique drive signals, an amount of touch corresponding to each sense point can be extracted from the sense signal. The touch sensing methods and devices can be incorporated into interfaces for a variety of electronic devices such as a desktop, tablet, notebook, and handheld computers, personal digital assistants, media players, and mobile telephones.
First claim
Opening claim text (preview).
What is claimed is: 1. A method of driving a touch sensitive surface, the touch sensitive surface comprising a plurality of sensing points, each sensing point being associated with at least one of a plurality of drive lines and at least one of a plurality of sense lines, the method comprising: simultaneously stimulating two or more drive lines of the plurality of drive lines during a plurality of time periods such that a net DC component of the two or more drive lines being stimul…
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- G06F3/044Primary
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
- G06F3/04166Primary
Physics · mapped topic
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- What does patent US8928617B2 cover?
- Multi-touch touch-sensing devices and methods are described herein. The touch sensing devices can include multiple sense points, each located at a crossing of a drive line and a sense line. In some embodiments, multiple drive lines may be simultaneously or nearly simultaneously stimulated with drive signals having unique characteristics, such as phase or frequency. A sense signal can occur on e…
- Who is the assignee on this patent?
- Apple Inc
- What technology area does this patent fall under?
- Primary CPC classification G06F3/044. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Jan 06 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).