Always-on sensor device for human touch
First Claim
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1. A device, comprising:
- always-on circuitry configured to implement a first stage comprising first operations including;
detecting touch of a specific area of a touch-screen display device, wherein the detecting is performed by a capacitor sensor, a pressure sensor, a force sensor or an accelerometer;
predicting that the touch is associated with a human finger based on a touch criterion; and
in response to the predicting,generating a control signal configured to cause a system circuitry to wake-up from a power-off mode or a sleep mode; and
sending the control signal to the system circuitry; and
the system circuitry configured to implement a second stage in response to the control signal, the second stage comprising second operations including;
analyzing biometric data of a human body associated with the human finger, and wherein the predicting further comprises determining that a first frequency response of a mass that causes the touch corresponds to a second frequency response of the human finger and determining that the specific area overlaps with a number of pixels of the touch-screen display device within a defined range.
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Abstract
Always-on or nearly always-on sensing of human touch at a device is provided. The sensing is split into a low-power detection stage and a full-power analysis stage, where the detection stage is implemented continually or nearly continually and causes system circuitry to perform analysis of the human touch after the low-power detection stage has confirmed the human touch. The sensing permits avoiding the reliance on physical actuation of a trigger prior to analysis of human touch.
61 Citations
21 Claims
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1. A device, comprising:
always-on circuitry configured to implement a first stage comprising first operations including; detecting touch of a specific area of a touch-screen display device, wherein the detecting is performed by a capacitor sensor, a pressure sensor, a force sensor or an accelerometer; predicting that the touch is associated with a human finger based on a touch criterion; and in response to the predicting, generating a control signal configured to cause a system circuitry to wake-up from a power-off mode or a sleep mode; and sending the control signal to the system circuitry; and
the system circuitry configured to implement a second stage in response to the control signal, the second stage comprising second operations including;analyzing biometric data of a human body associated with the human finger, and wherein the predicting further comprises determining that a first frequency response of a mass that causes the touch corresponds to a second frequency response of the human finger and determining that the specific area overlaps with a number of pixels of the touch-screen display device within a defined range. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method, comprising:
first stage operations including; detecting, by an always-on circuitry, touch of a specific area of a touch-screen display device, wherein the detecting is performed by static capacitive sensing of the touch, dynamic capacitive sensing of the touch, optical imaging of the touch or ultrasonic imaging of the touch; determining, by the always-on circuitry, that there is a probability greater than a defined threshold value that the touch is associated with a human finger; and
in response to the determining,generating, by the always-on circuitry, a control signal configured to cause a processor to wake-up from a power-off mode or a sleep mode; and sending, by the always-on circuitry, the control signal to the processor; and performing second stage operations in response to the control signal, the second stage operations including; analyzing, by a system circuitry, biometric data of a human body associated with the human finder, and wherein the determining further comprises determining that a first frequency response of a mass that causes the touch corresponds to a second frequency response of the human finger and determining that the specific area overlaps with a number of pixels of the touch-screen display device within a defined range. - View Dependent Claims (16, 17, 18, 19, 20)
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21. A non-transitory machine-readable storage device having executable instructions that, in response to execution, cause a device to perform operations comprising:
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first stage operations including; detecting touch of a specific area of a touch-screen display device, wherein the detecting is performed by optical imaging of the touch or ultrasonic imaging of the touch; determining that there is a probability greater than a defined threshold value that the touch is associated with a human finger; and in response to the determining, generating a control signal configured to cause a processor to wake-up from a power-off mode or a sleep mode; and sending the control signal to the processor; and performing second stage operations in response to the control signal, the second stage operations including; analyzing biometric data of a human body associated with the human finger, and wherein the determining further comprises determining that a first frequency response of a mass that causes the touch corresponds to a second frequency response of the human finger and determining that the specific area overlaps with a number of pixels of the touch-screen display device within a defined range.
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Specification