公开(公告)号：US10416801B2

公开(公告)日：2019-09-17

申请号：US14248100

申请日：2014-04-08

Applicant: Martin J. Simmons ,  Thomas Myers

Inventor： Martin J. Simmons ,  Thomas Myers

IPC: G06F3/044 ,  G06F3/041

Abstract: In certain embodiments, an apparatus includes controller circuitry and a touch sensor that includes first electrodes. The controller circuitry is configured to measure first capacitance values during a first time period, each first capacitance value associated with a respective first electrode. The controller circuitry is also configured to determine a first hand-usage value based at least on a distribution of the first capacitance values. The controller circuitry is also configured to estimate a hand-usage state based at least on the first hand-usage value. The hand-usage state indicates one of the following hand configurations: right-handed interaction with the touch sensor, left-handed interaction with the touch sensor, or two-handed interaction with the touch sensor.

公开(公告)号：US10409428B2

公开(公告)日：2019-09-10

申请号：US14978286

申请日：2015-12-22

Applicant: Atmel Corporation

Inventor： Thomas Bell

IPC: G06F3/041 ,  G06F3/044 ,  G06F3/0354

Abstract: In certain embodiments, a method includes determining a position of a touch input in a touch-sensitive area of a touch sensor. The touch sensor includes a first number of electrodes having a first orientation and a second number of electrodes having a second orientation. The second orientation being different from the first orientation. The method also includes selecting a first set of the first number of electrodes corresponding to at least a portion of an area of the touch input within the touch-sensitive area; and applying a first pre-determined voltage to the selected first set of the first number of electrodes based at least in part on the area of the touch input being larger than a pre-determined area.

公开(公告)号：US10394402B2

公开(公告)日：2019-08-27

申请号：US15785143

申请日：2017-10-16

Applicant: ATMEL CORPORATION

Inventor： Esat Yilmaz

IPC: G06F3/044

Abstract: In one embodiment, a touch position-sensing panel includes a sensing area. The sensing area includes a substrate and a plurality of first electrodes in a first layer. A first electrode of the plurality of first electrodes includes a first center region and a second electrode of the plurality of first electrodes comprises a second center region. The second electrode of the plurality of first electrodes does not include material of the first electrode of the plurality of first electrodes. A width of the second center region is less than a width of the first center region. The sensing area also includes a plurality of second electrodes in a second layer. The sensing area further includes a plurality of capacitive nodes formed by a capacitive coupling of the plurality of first electrodes in the first layer and the plurality of second electrodes in the second layer.

公开(公告)号：US10318050B2

公开(公告)日：2019-06-11

申请号：US15355383

申请日：2016-11-18

Applicant: Atmel Corporation

Inventor： Grahame Reynolds ,  Hammad Syed

IPC: G06F3/041 ,  G06F3/044 ,  G02F1/1333

Abstract: In certain embodiments, a method includes performing a first positive integration by sensing a first rising edge of a charging signal of a touch sensor during a first synchronization period, performing a first negative integration by sensing a first falling edge of the charging signal during a second synchronization period, and performing a first phase shift by skipping integration during a third synchronization period. The method further includes performing a second positive integration by sensing a second rising edge of the charging signal during a fourth synchronization period, performing a second negative integration by sensing a second falling edge of the charging signal during a fifth synchronization period, and performing a second phase shift by skipping integration during a sixth synchronization period. The first integrations are associated with a first sample measurement and the second integrations are associated with a second sample measurement.

公开(公告)号：US10234974B2

公开(公告)日：2019-03-19

申请号：US15617387

申请日：2017-06-08

Applicant: ATMEL CORPORATION

Inventor： Steinar Myren ,  Rune Watn

IPC: G09G1/00 ,  G06F3/041 ,  G06F3/044 ,  G09G3/20

Abstract: In certain embodiments, an apparatus includes a display stack and a controller. The display stack includes a display and a ground layer for generating an image for the display. The ground layer includes a plurality of columns. Each column of the plurality of columns includes a plurality of nodes. The controller provides voltages to a first plurality of nodes, respectively, of a first column of the plurality of columns of the ground layer such that a sum of the respective voltages of the first plurality of nodes of the first column is substantially zero. The controller also measures, to determine whether a touch event occurred, respective values at a second plurality of nodes of a second column of the plurality of columns. The respective values at the second plurality of nodes indicate an amount of charge transferred from the first plurality of nodes to the second plurality of nodes.

公开(公告)号：US10180763B2

公开(公告)日：2019-01-15

申请号：US15966169

申请日：2018-04-30

Applicant: Atmel Corporation

Inventor： Terje Saether ,  Carl Olof Fredrik Jonsson

IPC: G06F3/045 ,  G06F3/044 ,  G06F3/041

Abstract: A method includes driving, by a first driver circuit, a current through an electrode and detecting, by a sensing system, a touch based on a change in capacitance at the electrode. The first driver circuit includes a first operational transconductance amplifier and a first current mirror. A second current mirror is coupled to the sensing system. A first switch is coupled to the first current mirror. A second switch is coupled to the first current mirror and the first operational transconductance amplifier. A third switch is coupled to the first operational transconductance amplifier and the second current mirror. A fourth switch is coupled to the second current mirror. A fifth switch is coupled to the first operational transconductance amplifier. A sixth switch is coupled to the first operational transconductance amplifier. A seventh switch is coupled to the first operational transconductance amplifier, the first current mirror, and the second current mirror.

公开(公告)号：US10162464B2

公开(公告)日：2018-12-25

申请号：US15888501

申请日：2018-02-05

Applicant: Atmel Corporation

Inventor： Samuel Brunet ,  Grahame Reynolds ,  Hammad Syed

IPC: G06F3/041 ,  G06F3/044

Abstract: In certain embodiments, a touch sensor controller estimates an area of a display screen that a display controller will update at a first time and estimates an area of a touch sensor that the touch sensor controller is expected to scan at the first time. The touch sensor controller further identifies an expected interference based on a comparison between the update of the estimated area of the display screen by the display controller at the first time and the scan of the estimated area of the touch sensor by the touch sensor controller at the first time. Based on the expected interference, the touch sensor controller suspends, for a first time period, the scan of the estimated area of the touch sensor for touch events based on the expected interference. The touch sensor controller resumes the scan after the first time period.

公开(公告)号：US10146382B2

公开(公告)日：2018-12-04

申请号：US15185659

申请日：2016-06-17

Applicant: Atmel Corporation

Inventor： Harald Philipp

IPC: G06F3/044 ,  G06F3/041

Abstract: An assembly has an array of first electrodes distributed across an active area of the touchscreen assembly such that the density of first electrodes increases in a first direction across the touchscreen. An array of second electrodes is distributed across an active area of the touchscreen assembly such that the density of second electrodes decreases in the first direction across the touchscreen.

公开(公告)号：US10133369B2

公开(公告)日：2018-11-20

申请号：US14968585

申请日：2015-12-14

Applicant: Wacom Co., Ltd.

Inventor： Thomas Bell

IPC: G06F3/0354 ,  G06F3/044

Abstract: In one embodiment, a method includes determining, by a processor of a stylus, a tilt direction of the stylus based on respective first signal strengths at a plurality of receivers. The tilt direction comprises a direction of the stylus along an axis of a touch-sensing device. The method further includes generating, by the processor of the stylus, a response signal comprising information indicative of the tilt direction of the stylus.

公开(公告)号：US10120489B2

公开(公告)日：2018-11-06

申请号：US15209388

申请日：2016-07-13

Applicant: Atmel Corporation

Inventor： David Brent Guard ,  Steven P. Emm ,  James Lyle

IPC: G06F3/041 ,  G06F3/044

Abstract: In one embodiment, a touch sensor includes a substrate and a mesh of conductive material formed on the substrate and configured to extend across a display. The mesh includes first lines of conductive material that are substantially parallel to each other. The first lines extend across at least a portion of the display at a first angle relative to a first axis. The first lines are separated from each other along the first axis by a sequence of separation distances having corresponding magnitudes, where magnitudes of more than one separation distance from among the sequence of separation distances are based on a phasor step θ and a phasor magnitude of at least one phasor.