公开(公告)号：US20170364161A1

公开(公告)日：2017-12-21

申请号：US15409035

申请日：2017-01-18

Applicant: PIXART IMAGING INC.

Inventor： Chia-Yi LEE

IPC: G06F3/02 ,  G06F3/044 ,  G06F3/0488

CPC classification number: G06F3/0202 ,  G06F3/0416 ,  G06F3/044 ,  G06F2203/04111

Abstract: An input device including a plurality of press buttons and a touch control area is provided. The press buttons provide a key input function, and the touch control area provides a touch input function. Each of the press buttons pushes against an elastic pad which is used as a sensing electrode of the touch input function and as an elastic recovery element of the key input function.

公开(公告)号：US20210072837A1

公开(公告)日：2021-03-11

申请号：US16951123

申请日：2020-11-18

Applicant: PixArt Imaging Inc.

Inventor： Chia-Yi LEE

IPC: G06F3/02

Abstract: An input device including a plurality of press buttons and a touch control area is provided. The press buttons provide a key input function, and the touch control area provides a touch input function. Each of the press buttons pushes against an elastic pad which is used as a sensing electrode of the touch input function and as an elastic recovery element of the key input function.

公开(公告)号：US20200153432A1

公开(公告)日：2020-05-14

申请号：US16744580

申请日：2020-01-16

Applicant: PixArt Imaging Inc.

Inventor： SUNG-HAN WU ,  CHE-CHIA HSU ,  Chia-Yi LEE

IPC: H03K17/96 ,  H03K17/98

Abstract: A capacitive touch system including a drive end, a capacitive touch sensing device and a detection end is provided. The drive end inputs a modulated drive signal into an input channel of the capacitive sensing device, wherein the modulated drive signal includes a plurality of driving frequencies. The detection end detects a detection signal of an output channel of the capacitive sensing device and generates a two-dimensional detection vector corresponding to each of the driving frequencies. The capacitive touch system includes a touch panel or a touch keyboard.