Display device
US-2024272501-A1 · Aug 15, 2024 · US
Method and apparatus for improved input sensing using a display processor reference signal
US8970546B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8970546-B2 |
| Application number | US-201213602049-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 31, 2012 |
| Priority date | Aug 31, 2012 |
| Publication date | Mar 3, 2015 |
| Grant date | Mar 3, 2015 |
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Abstract
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Embodiments of the invention generally provide a method and apparatus that is configured to reduce the effects of interference that is undesirably provided to a transmitter signal that is delivered from a transmitter signal generating device to a sensor processor to determine if an input object is disposed within a touch sensing region of a touch sensing device. In one embodiment, the sensor processor includes a receiver channel that has circuitry that is configured to separately receive a transmitter signal delivered from a display processor and a sensor processor reference signal that is based on a display processor reference signal to reliably sense the presence of an object. Embodiments of the invention described herein thus provide an improved apparatus and method for reliably sensing the presence of an object by a touch sensing device.
First claim
Opening claim text (preview).
The invention claimed is: 1. An input device, comprising: a plurality of transmitter electrodes comprising a plurality of common electrodes configured to operate in a first mode for capacitive sensing and configured to operate in a second mode for updating a display device; a plurality of receiver electrodes; a display processor coupled to the plurality of transmitter electrodes and configured to drive at least one of the transmitter electrodes with a transmitter signal for ca…
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Physics · mapped topic
Physics · mapped topic
- G06F3/0418Primary
Physics · mapped topic
- G06F3/0412Primary
Physics · mapped topic
- G06F3/04184Primary
Physics · mapped topic
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Frequently asked questions
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- What does patent US8970546B2 cover?
- Embodiments of the invention generally provide a method and apparatus that is configured to reduce the effects of interference that is undesirably provided to a transmitter signal that is delivered from a transmitter signal generating device to a sensor processor to determine if an input object is disposed within a touch sensing region of a touch sensing device. In one embodiment, the sensor pr…
- Who is the assignee on this patent?
- Schwartz Adam, Reynolds Joseph Kurth, Synaptics Inc
- What technology area does this patent fall under?
- Primary CPC classification G06F3/0418. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Mar 03 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).