System and method for host-augmented touch processing
AssigneeQUALCOMM Incorporated
InventorsRaghukul Tilak, Suhail Jalil, Louis Dominic Oliveira, Fariborz Pourbigharaz
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Abstract
Systems and methods for host-augmented touch-sensing are disclosed. The energy-efficiency of a touch sensitive device may be improved by dynamically adjusting the scanning sensitivity of the touch sensor based on host-augmented environmental information such as temperature, pressure, position, orientation, humidity, force, or battery charging mode.
Claims22
A touch-sensitive system for an electronic device, comprising:
- a touch-sensitive surface;
- an environmental sensor;
- and
- a control module configured to:
- determine a charging mode of the electronic device while a battery of the electronic device is charged, the charging mode being a mode by which the battery is charged;
- continuously acquire data regarding an environmental condition from the environmental sensor;
- and
- reconfigure a sensing infrastructure of the electronic device by dynamically adjusting a scan rate, a scan region, a position update rate, and a touch sensor excitation signal of the touch sensitive surface based on (i) the sensed changes in the environmental condition and (ii) the charging mode of the electronic device to improve a signal-to-noise ratio of the touch-sensitive system.
A method for improving the energy efficiency of a touch-sensing system for an electronic device, comprising:
- determining a charging mode of the electronic device while a battery of the electronic device is charged, the charging mode being a mode by which the battery is charged;
- sensing one or more environmental conditions with an environmental sensor of the touch-sensing device;
- analyzing information provided by the environmental sensor;
- corroborating a touch sensing function using the information provided by the environmental sensor;
- and
- reconfigure a sensing infrastructure of the electronic device by dynamically adjusting a scan rate, a scan region, a position update rate, and a touch sensor excitation signal of a touch sensitive surface of the touch-sensing device based on (i) the sensed one or more environmental conditions and (ii) the charging mode of the electronic device to improve a signal-to-noise ratio of the touch-sensing device.
A non-transitory computer-readable medium comprising instructions that, when executed, causes a processor to perform the method of:
- sensing one or more environmental conditions with an environmental sensor of an electronic device;
- determining a charging mode of the electronic device while a battery of the electronic device is charged, the charging mode being a mode by which the battery is charged;
- characterizing a frequency of electromagnetic noise generated by the charging mode;
- and
- reconfiguring a sensing infrastructure of the electronic device by dynamically adjusting a scan rate, a scan region, a position update rate, and a touch sensor excitation signal of a touch sensitive surface of the electronic device based on (i) the sensed environmental condition and (ii) the characterized electromagnetic noise frequency to improve a signal-to-noise ratio of the electronic device.
An apparatus for energy efficient touch processing, comprising:
- a touch sensitive surface of an electronic device;
- means for determining a charging mode of the apparatus while a battery of the apparatus is charged, the charging mode being a mode by which the battery is charged;
- means for sensing one or more environmental conditions of the touch-sensitive surface;
- means for analyzing information provided by an environmental sensor;
- means for corroborating a touch sensing function using the information provided by the environmental sensor;
- and
- means for reconfiguring a sensing infrastructure of the electronic device by dynamically adjusting a scan rate, a scan region, a position update rate, and a touch sensor excitation signal of the touch sensitive surface based on (i) the sensed one or more environmental conditions and (ii) the charging mode of the electronic device to improve a signal-to-noise ratio of the touch sensitive surface of the electronic device.
Dependencies are inferred from the claim text.