公开(公告)号：US20190102034A1

公开(公告)日：2019-04-04

申请号：US15974953

申请日：2018-05-09

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： SANG-PIL NAM ,  KYUNG-HOON LEE ,  MICHAEL CHOI

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

Abstract: A touch detection device and a method of detecting a touch employ: a current-to-voltage converter configured to convert a reception signal received from a touch panel into a sensing signal, and further configured to be periodically reset for a first time period in response to a reset signal; a digital-to-analog converter configured to convert an analog signal based on the sensing signal into a first digital output signal, and a controller configured to generate a second digital output signal based on the first digital output signal by performing data interpolation on a first portion of the first digital output signal corresponding to the first time period.

公开(公告)号：US20150212643A1

公开(公告)日：2015-07-30

申请号：US14604948

申请日：2015-01-26

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： JIN-CHUL LEE ,  KI-DUK KIM ,  HO-JIN PARK ,  YOON-KYUNG CHOI ,  MICHAEL CHOI ,  CHOONG-HOON LEE ,  SANG-HYUB KANG ,  KYUNG-HOON LEE

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0416 ,  G06F3/044

Abstract: A touch sensing device includes a touch panel and a receiving unit. The touch panel generates first to third receiving signals corresponding to a touch occurring at the touch sensing device. The receiving unit is connected to the touch panel through first to third receiving lines to receive the first to third receiving signals through the first to third receiving lines, respectively. The receiving unit includes a differential signal generator for excluding a first common signal common to the first and second receiving signals from each of the first and second receiving signals to generate first differential signals when a first touch sensing operation is performed. The differential signal generator excludes a second common signal common to the second and third receiving signals from each of the second and third receiving signals to generate second differential signals when a second touch sensing operation is performed.

Abstract translation: 触摸感测装置包括触摸面板和接收单元。 触摸面板产生对应于在触摸感测装置处发生的触摸的第一至第三接收信号。 接收单元通过第一至第三接收线路连接到触摸面板，以分别通过第一至第三接收线路接收第一至第三接收信号。 接收单元包括差分信号发生器，用于从第一和第二接收信号中的每一个排除第一和第二接收信号共同的第一公共信号，以在执行第一触摸感测操作时产生第一差分信号。 差分信号发生器从第二和第三接收信号中的每一个排除第二和第三接收信号共同的第二公共信号，以在执行第二触摸感测操作时产生第二差分信号。