Low power touch detection
First Claim
1. A method for touch detection in a low-power state comprising:
- acquiring a touch image including measurements from a plurality of touch nodes of a touch-sensitive surface;
processing the touch image to identify whether the touch image includes one or more qualifying edge touches; and
in accordance with identifying a first qualifying edge touch;
identifying a first portion of the touch image corresponding to the first qualifying edge touch; and
processing a second portion of the touch image excluding the first portion of the touch image to identify a touch input for the touch image without segmenting the second portion of the touch image.
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Accused Products
Abstract
Low-power touch detection can be beneficial for an electronic device to maintain touch detection and enable response to certain touch inputs in a low-power state (e.g., a sleep state), while consuming less power than touch detection during an awake state. For example, sensing touch during the sleep state can allow the electronic device to wake (e.g., transition from the sleep state to the awake state) in response to detecting a certain touch input (e.g., a tap or other touch input) on its touch screen while in the sleep state. Examples of the disclosure provide various ways for the electronic device to further reduce power consumption in the low-power state by simplifying the processing requirements for touch input to the touch-sensitive surface.
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Citations
36 Claims
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1. A method for touch detection in a low-power state comprising:
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acquiring a touch image including measurements from a plurality of touch nodes of a touch-sensitive surface; processing the touch image to identify whether the touch image includes one or more qualifying edge touches; and in accordance with identifying a first qualifying edge touch; identifying a first portion of the touch image corresponding to the first qualifying edge touch; and processing a second portion of the touch image excluding the first portion of the touch image to identify a touch input for the touch image without segmenting the second portion of the touch image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An electronic device comprising:
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a touch-sensitive surface; and one or more processors coupled to the touch-sensitive surface configured for; acquiring a touch image including measurements from a plurality of touch nodes of the touch-sensitive surface; processing the touch image to identify whether the touch image includes one or more qualifying edge touches; and in accordance with identifying a first qualifying edge touch; identifying a first portion of the touch image corresponding to the first qualifying edge touch; and processing a second portion of the touch image excluding the first portion of the touch image to identify a touch input for the touch image without segmenting the second portion of the touch image. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A non-transitory computer readable storage medium storing instructions, which when executed by one or more processors, cause the one or more processors to perform a method, the method comprising:
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acquiring a touch image including measurements from a plurality of touch nodes of a touch-sensitive surface; processing the touch image to identify whether the touch image includes one or more qualifying edge touches; and in accordance with identifying a first qualifying edge touch; identifying a first portion of the touch image corresponding to the first qualifying edge touch; and processing a second portion of the touch image excluding the first portion of the touch image to identify a touch input for the touch image without segmenting the second portion of the touch image. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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Specification