System and method for host-augmented touch processing
First Claim
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1. 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.
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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.
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Citations
22 Claims
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1. A touch-sensitive system for an electronic device, comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for improving the energy efficiency of a touch-sensing system for an electronic device, comprising:
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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. - View Dependent Claims (10, 11, 12, 13)
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14. A non-transitory computer-readable medium comprising instructions that, when executed, causes a processor to perform the method of:
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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. - View Dependent Claims (15, 16)
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17. An apparatus for energy efficient touch processing, comprising:
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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. - View Dependent Claims (18, 19, 20, 21, 22)
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Specification