US 2026/0044232 A1 · METHOD, SENSOR CONTROLLER, AND ELECTRONIC APPARATUS

Abstract

A method performed by a sensor controller detects coordinates of a pen including one or more electrodes that transmit a signal. The method includes a first scanning step of performing an operation of detecting a signal transmitted from an electrode in contact with a panel surface at each of three or more first reference positions at which signal levels can be detected, from the signal detected in a sensor electrode group included in a first range, among plural juxtaposed reference positions. The method includes a second scanning step of performing an operation of detecting a signal transmitted from an electrode not in contact with the panel surface at each of three or more second reference positions at which signal levels can be detected, from the signal detected in a sensor electrode group included in a second range greater than the first range, among the plural reference positions.

Claims20

Dependent claims

A method performed by a sensor controller for detecting coordinates of a pen on a panel surface of a touch sensor including a plurality of reference positions arranged along a first direction, the touch sensor including a first group of sensor electrodes respectively located relative to the plurality of reference positions, the first group of sensor electrodes having a first electrode position density per unit of length along the first direction, the method comprising:

a first scanning step of detecting a pen signal transmitted from the pen, by selecting a second group of sensor electrodes out of the first group of sensor electrodes, the second group of sensor electrodes having a second electrode position density per the unit of length along the first direction, wherein the second electrode position density is less than the first electrode position density;
and
a first deriving step of deriving the coordinates of the pen on a basis of signal levels detected at the second group of sensor electrodes selected in the first scanning step.

A sensor controller for detecting coordinates of a pen on a panel surface of a touch sensor including a plurality of reference positions arranged along a first direction, the touch sensor including a first group of sensor electrodes respectively located relative to the plurality of reference positions, the first group of sensor electrodes having a first electrode position density per unit of length along the first direction, the sensor controller comprising circuitry configured to perform:

a first scanning step of detecting a pen signal transmitted from the pen, by selecting a second group of sensor electrodes out of the first group of sensor electrodes, the second group of sensor electrodes having a second electrode position density per the unit of length along the first direction, wherein the second electrode position density is less than the first electrode position density;
and
a first deriving step of deriving the coordinates of the pen on a basis of signal levels detected at the second group of sensor electrodes selected in the first scanning step.

Dependencies are inferred from the claim text.

Method, sensor controller, and electronic apparatus

Life of this patent

Method, sensor controller, and electronic apparatus

Life of this patent

Abstract

Claims20