-
公开(公告)号：US20170300168A1
公开(公告)日：2017-10-19
申请号：US15635010
申请日：2017-06-27
Applicant: PixArt Imaging Inc.
Inventor： Sung-Han WU
Abstract: There is provided a capacitive touch device including a touch panel and a control chip. The touch panel includes detection electrodes configured to form self-capacitance and mutual-capacitance. The control chip includes an emulation circuit and a subtraction circuit. The emulation circuit is configured to output a reference signal. The subtraction circuit is coupled to the emulation circuit and the detection electrode, subtracts the reference signal outputted by the emulation circuit from a detected signal outputted by the detection electrodes to output a differential detected signal, and identifies a touch event according to the differential detected signal to reduce the power consumption for touch detection.
-
2.发明申请CAPACITIVE TOUCH DEVICE WITH HIGH SENSITIVITY AND OPERATING METHOD THEREOF 审中-公开具有高灵敏度的电容触摸装置及其操作方法公开(公告)号：US20160282991A1
公开(公告)日：2016-09-29
申请号：US15080718
申请日：2016-03-25
Applicant: PIXART IMAGING INC.
Inventor： Sung-Han WU
CPC classification number: G06F3/044 , G06F3/0416
Abstract: There is provided a capacitive touch device including a touch panel and a control chip. The touch panel includes a detection electrode configured to form a self-capacitor. The control chip includes an emulation circuit and a subtraction circuit. The emulation circuit is configured to output a reference signal. The subtraction circuit is coupled to the emulation circuit and the detection electrode, subtracts the reference signal outputted by the emulation circuit from a detected signal outputted by the detection electrode to output a differential detected signal, and identifies a touch event according to an amplified differential detected signal so as to improve the touch sensitivity.
Abstract translation: 提供了包括触摸面板和控制芯片的电容式触摸装置。 触摸面板包括被配置为形成自身电容器的检测电极。 控制芯片包括仿真电路和减法电路。 仿真电路被配置为输出参考信号。 减法电路耦合到仿真电路和检测电极，从由检测电极输出的检测信号中减去由仿真电路输出的参考信号，以输出差分检测信号，并根据检测到的放大微分识别触摸事件 信号，以提高触摸灵敏度。
-
Patent Agency Ranking
公开(公告)号：US20180164924A1
公开(公告)日：2018-06-14
申请号：US15893114
申请日：2018-02-09
Applicant: PixArt Imaging Inc.
Inventor： Sung-Han WU , Yu-Han CHEN , Ming-Hung TSAI , Meng-Lin YU , Hsin-Chia CHEN
CPC classification number: G06F3/044 , G06F3/0418
Abstract: There is provided a capacitive touch device including a touch panel, a detection circuit and a processing unit. The touch panel includes a plurality of drive electrodes and a plurality of receiving electrodes configured to form a coupling electric field with an external touch panel, and the receiving electrodes are respectively configured to output a detection signal. The detection circuit is coupled to one of the receiving electrodes and configured to modulate the detection signal with two signals to generate two detection components. The processing unit is configured to obtain a phase value according to the two detection components to accordingly decode transmission data.
-
4.发明申请公开(公告)号：US20170262092A1
公开(公告)日：2017-09-14
申请号：US15355266
申请日：2016-11-18
Applicant: PIXART IMAGING INC.
Inventor： Sung-Han WU
IPC: G06F3/044
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.
-
公开(公告)号：US20210152387A1
公开(公告)日：2021-05-20
申请号：US16683946
申请日：2019-11-14
Applicant: PIXART IMAGING INC.
Inventor： Sung-Han WU , Yi-Hsien KO
IPC: H04L12/28
Abstract: There is provided a smart home control system including a host, at least one sensor, a plurality of controlled devices and an informing device. The host identifies entering and leaving of family members according to detection results of the at least one sensor, and controls on/off of the controlled devices or informs a specific family member by the informing device to execute agenda according to a member ID of a family member who is identified to enter or leave the house.
-
公开(公告)号：US20210014075A1
公开(公告)日：2021-01-14
申请号：US17030374
申请日：2020-09-24
Applicant: PixArt Imaging Inc.
Inventor： Sung-Han WU , Yi-Hsien KO
IPC: H04L12/28
Abstract: There is provided a smart home control system including a host, at least one sensor, a plurality of controlled devices and an informing device. The host identifies entering and leaving of family members according to detection results of the at least one sensor, and controls on/off of the controlled devices or informs a specific family member by the informing device to execute agenda according to a member ID of a family member who is identified to enter or leave the house. When identifying that one agendum is unable or forgotten to be executed by the specific family member, the host further rearranges the agendum.
-
公开(公告)号：US20160282996A1
公开(公告)日：2016-09-29
申请号：US15176687
申请日：2016-06-08
Applicant: PixArt Imaging Inc.
Inventor： Sung-Han WU , Yu-Han CHEN , Ming-Hung TSAI , Meng-Lin YU , Hsin-Chia CHEN
CPC classification number: G06F3/044 , G06F3/0418
Abstract: There is provided a capacitive touch device including a touch panel, a detection circuit and a processing unit. The touch panel includes a plurality of drive electrodes and a plurality of receiving electrodes configured to form a coupling electric field with an external touch panel, and the receiving electrodes are respectively configured to output a detection signal. The detection circuit is coupled to one of the receiving electrodes and configured to modulate the detection signal with two signals to generate two detection components. The processing unit is configured to obtain a phase value according to the two detection components to accordingly decode transmission data.
-
-
-
-
-
-
Search Results
7
records
(took 0.015 seconds)
