Control methods for a force sensor system
AssigneeCirrus Logic, Inc.
InventorsPablo Peso Parada, Hamid Sepehr
Life of this patent
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Abstract
A method of controlling a force sensor system to define at least one button implemented by at least one force sensor, the method comprising: receiving a force sensor input; determining a gradient of the force sensor input; and controlling the force sensor system based on the determined gradient.
Claims19
A method of controlling a force sensor system to define at least one button implemented by at least one force sensor, the method comprising:
- receiving a force sensor input;
- determining a gradient of the force sensor input;
- and
- controlling the force sensor system based on the determined gradient;
- wherein the method comprises:
- comparing the determined gradient to a first re-calibration threshold and a second re-calibration threshold, wherein the first re-calibration threshold has a negative value and the second re-calibration threshold is set at a level higher than, or more positive than, that of the first re-calibration threshold;
- and
- triggering a re-calibration of the force sensor system if the determined gradient crosses the first re-calibration threshold and the second re-calibration threshold, in that order.
A force sensor system such as a host device, comprising:
- at least one force sensor;
- and
- a controller connected to the at least one force sensor and configured to carry out a method of controlling the force sensor system to define at least one button implemented by the at least one force sensor, the method comprising:
- receiving a force sensor input;
- determining a gradient of the force sensor input;
- and
- controlling the force sensor system based on the determined gradient;
- wherein the method comprises:
- comparing the determined gradient to a first re-calibration threshold and a second re-calibration threshold, wherein the first re-calibration threshold has a negative value and the second re-calibration threshold is set at a level higher than, or more positive than, that of the first re-calibration threshold;
- and
- triggering a re-calibration of the force sensor system if the determined gradient crosses the first re-calibration threshold and the second re-calibration threshold, in that order.
A method of controlling a force sensor system to define at least one button implemented by at least one force sensor, the method comprising:
- receiving a force sensor input;
- determining a gradient of the force sensor input;
- and
- controlling the force sensor system based on the determined gradient,
- wherein the control comprises comparing the determined gradient to a falling gradient threshold, and detecting a release event of the at least one button when the gradient falls below the falling gradient threshold,
- wherein the falling gradient threshold is a negative gradient threshold or has a negative value.
A force sensor system such as a host device, comprising:
- at least one force sensor;
- and
- a controller connected to the at least one force sensor and configured to carry out a method of controlling the force sensor system to define at least one button implemented by the at least one force sensor, the method comprising:
- receiving a force sensor input;
- determining a gradient of the force sensor input;
- and
- controlling the force sensor system based on the determined gradient;
- wherein the control comprises comparing the determined gradient to a falling gradient threshold, and detecting a release event of the at least one button when the gradient falls below the falling gradient threshold;
- wherein the falling gradient threshold is a negative gradient threshold or has a negative value.
Dependencies are inferred from the claim text.