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公开(公告)号:US20200371620A1
公开(公告)日:2020-11-26
申请号:US16988908
申请日:2020-08-10
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.
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公开(公告)号:US20190060735A1
公开(公告)日:2019-02-28
申请号:US15689293
申请日:2017-08-29
Applicant: PIXART IMAGING INC.
Inventor: SUNG-HAN WU
Abstract: The disclosure is related to a method and a system for posture correction adapted to one sporting equipment. In the method, a force distribution history responsive to force or pressure data detected by one or more pressure sensors mounted on a surface of the sporting equipment over a period of time is firstly obtained. The pressure value is recorded in the force distribution history once it is detected that a pressure value exceeds a threshold, and the force distribution history is compared with a selected force pattern model so as to obtain a deviation distribution model. The deviation distribution model renders a correction data for the posture correction.
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13.
公开(公告)号:US20220393681A1
公开(公告)日:2022-12-08
申请号:US17891172
申请日:2022-08-19
Applicant: PixArt Imaging Inc.
Inventor: SUNG-HAN WU
IPC: H03K17/96
Abstract: There is provided a touch detection circuit including a charging circuit, a discharging circuit, a counter and a processor. The charging circuit charges a detection capacitor within a charging interval using different currents. The discharging circuit discharges the detection capacitor within a discharging interval using different currents. The counter counts the charging interval and the discharging interval. The processor subtracts a baseline time from a counted charging time and a counted discharging time to cancel the noise interference.
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公开(公告)号:US20200372992A1
公开(公告)日:2020-11-26
申请号:US16993472
申请日:2020-08-14
Applicant: PixArt Imaging Inc.
Inventor: SUNG-HAN WU , YI-HSIEN KO
Abstract: There is provided a smart control system including a host, at least one sensor and an informing device. The host identifies the activity of a specific member according to the detection result of the at least one sensor, and informs the specific member to take medicine on time or avoid eating specific ingredients using the informing device.
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公开(公告)号:US20200348640A1
公开(公告)日:2020-11-05
申请号:US16880179
申请日:2020-05-21
Applicant: PixArt Imaging Inc.
Inventor: SUNG-HAN WU , YI-HSIEN KO
IPC: G05B19/042 , 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.
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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
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.
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17.
公开(公告)号:US20190241191A1
公开(公告)日:2019-08-08
申请号:US16386318
申请日:2019-04-17
Applicant: PIXART IMAGING INC.
Inventor: SUNG-HAN WU
CPC classification number: B60W40/09 , A61B5/18 , A61B5/6893 , B60W30/08 , B60W2040/0872
Abstract: A direction control apparatus with a sensor, a method for determining a driver status using the driving control apparatus, and a system for determining the driver status are provided. The direction control apparatus includes at least a pressure sensor to sense a plurality of pressure values applied to multiple positions of the direction control apparatus. When the pressure values are received by a controller of the apparatus, the driver status can be determined according to a change of pressure values over time, or further a change of the positions where pressure is applied. The system can connect with an autopilot system and an alarm system of a vehicle via the controller. Therefore, the system incorporates an autopilot system and issues an alarm when the driver status is determined to be abnormal.
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公开(公告)号:US20190042029A1
公开(公告)日:2019-02-07
申请号:US16154153
申请日:2018-10-08
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.
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公开(公告)号:US20180259405A1
公开(公告)日:2018-09-13
申请号:US15730396
申请日:2017-10-11
Applicant: PIXART IMAGING INC.
Inventor: SUNG-HAN WU
CPC classification number: G01L1/146 , G01L9/0072 , G01L25/006
Abstract: The present disclosure illustrates a calibration method and circuit for a pressure sensing device. The calibration method, via at least one passive component (e.g., the default capacitor) installed in the pressure sensing device, obtains a calibration gain factor of at least one converter also installed in the pressure sensing device, and when the pressure sensing device is in a regular operating mode, the calibration gain factor can be used to calibrate the output of the converter, so that a sensing signal inputted into the pressure sensing device can be correctly converted to a relevant pressure value.
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