公开(公告)号：US10955973B2

公开(公告)日：2021-03-23

申请号：US13864058

申请日：2013-04-16

Applicant: Atmel Corporation

Inventor： Gregory Brillant ,  Steinar Myren ,  Terje Saether

IPC: G06F3/044 ,  G06F3/041

Abstract: In one embodiment, a method includes outputting a first current associated with a first electrode track of a self-capacitance touch sensor. The method also includes outputting a second current associated with a second electrode track of the self-capacitance touch sensor. The method also includes measuring a voltage associated with a difference between the first and second currents and determining a position of an object relative to the self-capacitance touch sensor based on the voltage.

公开(公告)号：US10338666B2

公开(公告)日：2019-07-02

申请号：US16112520

申请日：2018-08-24

Applicant: ATMEL CORPORATION

Inventor： Gregory Brillant ,  Trond Jarle Pedersen

IPC: G06F1/3234 ,  G06F3/041 ,  G06F1/3215 ,  G06F3/044

Abstract: In one embodiment, a system includes a touch sensor, measurement circuits, and a monitoring circuit. The monitoring circuit is coupled to each measurement circuit. The monitoring circuit is configured to perform operations in a first power mode. The operations include receiving signals from the measurement circuits and generating an output signal that is proportional to a sum of the signals received from the measurement circuits. A value of the generated output signal indicates whether activity has occurred on the touch sensor.

公开(公告)号：US10061375B2

公开(公告)日：2018-08-28

申请号：US15226606

申请日：2016-08-02

Applicant: Atmel Corporation

Inventor： Gregory Brillant ,  Trond Jarle Pedersen

IPC: G06F1/32 ,  G06F3/041 ,  G06F3/044

CPC classification number: G06F1/3262 ,  G06F1/3215 ,  G06F3/0416 ,  G06F3/044 ,  Y02D50/20

Abstract: In one embodiment, a system includes a touch sensor, measurement circuits, and a monitoring circuit. The measurement circuits are respectively coupled to electrodes of the touch sensor. Each measurement circuit includes a first component, a second component, and a third component. The first component of each measurement circuit is activated in a first power mode and the second and third components of each measurement circuit are deactivated in the first power mode. The monitoring circuit is coupled to the measurement circuits and includes a first component, a second component, and a third component. The monitoring circuit is configured to perform operations in the first power mode. The operations include receiving signals from the measurement circuits and generating an output signal that is proportional to a sum of the signals received from the measurement circuits. A value of the generated output signal indicates whether activity has occurred on the touch sensor.

公开(公告)号：US20180364789A1

公开(公告)日：2018-12-20

申请号：US16112520

申请日：2018-08-24

Applicant: ATMEL CORPORATION

Inventor： Gregory Brillant ,  Trond Jarle Pedersen

IPC: G06F1/32 ,  G06F3/044 ,  G06F3/041

CPC classification number: G06F1/3262 ,  G06F1/3215 ,  G06F3/0416 ,  G06F3/044 ,  Y02D50/20

Abstract: In one embodiment, a system includes a touch sensor, measurement circuits, and a monitoring circuit. The monitoring circuit is coupled to each measurement circuit. The monitoring circuit is configured to perform operations in a first power mode. The operations include receiving signals from the measurement circuits and generating an output signal that is proportional to a sum of the signals received from the measurement circuits. A value of the generated output signal indicates whether activity has occurred on the touch sensor.

公开(公告)号：US20180039319A1

公开(公告)日：2018-02-08

申请号：US15226606

申请日：2016-08-02

Applicant: Atmel Corporation

Inventor： Gregory Brillant ,  Trond Jarle Pedersen

IPC: G06F1/32 ,  G06F3/044 ,  G06F3/041

CPC classification number: G06F1/3262 ,  G06F1/3215 ,  G06F3/0416 ,  G06F3/044

Abstract: In one embodiment, a system includes a touch sensor, measurement circuits, and a monitoring circuit. The measurement circuits are respectively coupled to electrodes of the touch sensor. Each measurement circuit includes a first component, a second component, and a third component. The first component of each measurement circuit is activated in a first power mode and the second and third components of each measurement circuit are deactivated in the first power mode. The monitoring circuit is coupled to the measurement circuits and includes a first component, a second component, and a third component. The monitoring circuit is configured to perform operations in the first power mode. The operations include receiving signals from the measurement circuits and generating an output signal that is proportional to a sum of the signals received from the measurement circuits. A value of the generated output signal indicates whether activity has occurred on the touch sensor.