公开(公告)号：US10353502B2

公开(公告)日：2019-07-16

申请号：US16222361

申请日：2018-12-17

Applicant: ATMEL CORPORATION

Inventor： Steinar Myren ,  Rune Watn

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

Abstract: An apparatus includes a display stack and a controller. The display stack includes a display and a ground layer. 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 of a first column of the plurality of columns of the ground layer such that a sum of the voltages of the first plurality of nodes of the first column is less than or equal to two millivolts. The controller also measures values at a second plurality of nodes of a second column of the plurality of columns. The values at the second plurality of nodes indicates an amount of charge transferred from the first plurality of nodes to the second plurality of nodes.

公开(公告)号：US20180203546A1

公开(公告)日：2018-07-19

申请号：US15921004

申请日：2018-03-14

Applicant: Atmel Corporation

Inventor： Trond Pedersen ,  Steinar Myren ,  Vemund Bakken ,  Rune Watn

IPC: G06F3/044 ,  G06F3/041

Abstract: In one embodiment, a method includes receiving one or more sense signals from a touch sensor of a device, comparing a value associated with the one or more sense signals to a first threshold, and determining, based on comparing the value to the first threshold, whether an object has come within a pre-determined proximity of a first pre-determined location at a surface of the device. The method further includes comparing the value associated with the one or more sense signals to a second threshold and determining, based on comparing the value to the second threshold, whether the object has come within a pre-determined proximity of a second pre-determined location at the surface of the device.

公开(公告)号：US20190138142A1

公开(公告)日：2019-05-09

申请号：US16222361

申请日：2018-12-17

Applicant: ATMEL CORPORATION

Inventor： Steinar Myren ,  Rune Watn

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

CPC classification number: G06F3/0412 ,  G06F3/0416 ,  G06F3/044 ,  G09G3/2092 ,  G09G2310/0254 ,  G09G2320/0266

Abstract: An apparatus includes a display stack and a controller. The display stack includes a display and a ground layer. 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 of a first column of the plurality of columns of the ground layer such that a sum of the voltages of the first plurality of nodes of the first column is less than or equal to two millivolts. The controller also measures values at a second plurality of nodes of a second column of the plurality of columns. The values at the second plurality of nodes indicates an amount of charge transferred from the first plurality of nodes to the second plurality of nodes.

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：US20170364185A1

公开(公告)日：2017-12-21

申请号：US15617387

申请日：2017-06-08

Applicant: ATMEL CORPORATION

Inventor： Steinar Myren ,  Rune Watn

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

CPC classification number: G06F3/0412 ,  G06F3/0416 ,  G06F3/044 ,  G09G3/2092 ,  G09G2310/0254 ,  G09G2320/0266

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.