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US 11,994,761 B2Granted
Ground feature in a capacitive touch system
AssigneeCirque Corporation
InventorsJon Bertrand, Paul Glad, Douglas Steck
Life of this patent
Estimating the term…
Abstract
An apparatus may include a touch sensor where the touch sensor has a first set of electrodes and a second set of electrodes that are electrically isolated from the first set of electrodes, a shield layer positioned adjacent to the touch sensor where the shield layer has a first section and a second section where the first section of the shield layer has a different electrical characteristic than the second section of the shield layer, and a ground feature incorporated into the touch sensor.
Claims19
An apparatus, comprising:
- a touch sensor;
- the touch sensor having a first set of electrodes and a second set of electrodes that are electrically isolated from the first set of electrodes;
- a shield layer positioned adjacent to the touch sensor;
- the shield layer has a first section and a second section where the first section of the shield layer includes multiple openings defined in the thickness of the first section and the second section of the shield layer has a different electrical characteristic than the first section;
- and
- a ground feature incorporated into the touch sensor;
- a first region of the touch sensor is adjacent to an antenna configured to direct a radio frequency signal through the first region of the touch sensor;
- wherein the first region of the touch sensor aligns with the first section of the shield layer;
- wherein the ground feature is a ring that surrounds at least the first region of the touch sensor.
6 more elements
An apparatus, comprising:
- a touch sensor;
- a shield layer positioned adjacent to the touch sensor;
- the shield layer has a first section and a second section where the first section of the shield layer has a different electrical characteristic than the second section of the shield layer;
- and
- a ground feature incorporated into the touch sensor;
- wherein at least a portion of the ground feature divides a first region of the touch sensor from a second region of the touch sensor, wherein the first region of the touch sensor aligns with the first section of the shield layer and the second region of the touch sensor aligns with the second region of the shield layer;
- wherein the first region of the touch sensor is adjacent to an antenna configured to direct a radio frequency signal through the first region of the touch sensor.
4 more elements
An apparatus, comprising:
- a touch sensor;
- a shield layer positioned adjacent to the touch sensor;
- the shield layer has a first section and a second section where the first section of the shield layer includes multiple openings defined in the thickness of the first section and the second section of the shield layer has a solid continuous area;
- and
- a ground feature incorporated into the touch sensor;
- wherein at least a portion of the ground feature divides a first region of the touch sensor from a second region of the touch sensor, wherein the first region of the touch sensor aligns with the first section of the shield layer and the second region of the touch sensor aligns with the second region of the shield layer;
- the ground feature is a ring that surrounds the second region of the touch sensor.
4 more elements
Dependencies are inferred from the claim text.