公开(公告)号：US11526195B2

公开(公告)日：2022-12-13

申请号：US17680243

申请日：2022-02-24

Applicant: PixArt Imaging Inc.

Inventor： Ming-Hung Tsai ,  Tse-Chung Su ,  Ren-Hau Gu ,  Tzung-Min Su

IPC: G06F1/16 ,  G06F3/041 ,  G06F3/044

Abstract: An electronic device with a function of detecting a touch state, comprising: at least one first electrode, configured to generate a first capacitance reflecting a distance between the first electrode and an object; at least one second electrode, configured to generate a second capacitance reflecting a distance between the second electrode and the object, and wherein a first distance between the first electrode and the object is smaller than a second distance between the second electrode and the object when the electronic is in a wearing state; a capacitance calculating circuit, configured to calculate the first capacitance and the second capacitance; and a processing circuit, configured to determine if the electronic device is in the wearing state based on a capacitance difference between the first capacitance and the second capacitance. Via such structure, the touch state of the electronic device can be precisely acquired.

公开(公告)号：US20220378376A1

公开(公告)日：2022-12-01

申请号：US17331616

申请日：2021-05-26

Applicant: PixArt Imaging Inc.

Inventor： Ren-Hau Gu

IPC: A61B5/00

Abstract: A wearable electronic device, comprising: a substrate: a first motion sensing region, comprising at least one first electrode on the substrate; a second motion sensing region, comprising at least one second electrode, wherein a shielding layer is provided on the second electrode, and the second electrode is between the shielding layer and the substrate, wherein a user causes more capacitance variation to the first electrodes and causes less capacitance variation to the second electrodes when the user wears the smart watch; a capacitance calculating circuit, coupled to the first electrode, configured to calculate a capacitance variation generated by the first electrode or the second electrode; and a motion determination circuit, configured to determine a motion of the wearable electronic device according to the capacitance variation of the first electrode or the capacitance variation of the second electrode.

公开(公告)号：US11194896B2

公开(公告)日：2021-12-07

申请号：US17113247

申请日：2020-12-07

Applicant: PixArt Imaging Inc.

Inventor： Yi-Hsien Ko ,  Ren-Hau Gu

IPC: G06F21/32 ,  H04W12/30 ,  G06F1/16

Abstract: A wearable device including a skin sensor and a processor is provided. The processor is configured to receive an authentication data for authenticating a user when a wearing state of the wearable device is adjacent to a skin surface of the user, share an authenticated state in response to a request from an electronic device when the authentication data matches a pre-stored data and the skin sensor determines that the wearable device does not leave the skin surface after the authentication data is received, and stop sharing the authenticated state when the skin sensor determines that the wearable device leaves the skin surface during the sharing.

公开(公告)号：US11157607B2

公开(公告)日：2021-10-26

申请号：US17021336

申请日：2020-09-15

Applicant: PixArt Imaging Inc.

Inventor： Ren-Hau Gu

IPC: G06F21/32 ,  G06F1/16 ,  H04W12/30

Abstract: A wearable device including a skin sensor and a processor is provided. The processor is configured to receive an authentication data for authenticating a user when a wearing state of the wearable device is adjacent to a skin surface of the user, execute a predetermined function in response to a request when the authentication data matches a pre-stored data and the skin sensor determines that the wearable device does not leave the skin surface after the authentication data is received, and reject or ignore the request when the skin sensor determines that the wearable device leaves the skin surface before the predetermined function is executed. The processor further calculates blood pressures according to PPG signals detected by a PPG sensor of the skin sensor.

公开(公告)号：US10849560B2

公开(公告)日：2020-12-01

申请号：US16385676

申请日：2019-04-16

Applicant: PixArt Imaging Inc.

Inventor： Ren-Hau Gu ,  Chih-Hsin Lin ,  Yung-Chang Lin ,  Chien-Lung Liao

IPC: A61B5/00 ,  A61B5/024 ,  A61B5/1455

Abstract: There is provided a physiological detection system including a physiological detection device and a host. The physiological detection device is configured to transmit a physiological data series to the host according to a local oscillation frequency. The host is configured to calculate a physiological value according to the physiological data series and determine a correction parameter according to a receiving data parameter and a reference data parameter, wherein the correction parameter is configured to correct the physiological value, process the physiological data series or adjust the local oscillation frequency of the physiological detection device.

公开(公告)号：US10335046B2

公开(公告)日：2019-07-02

申请号：US14847143

申请日：2015-09-08

Applicant: PIXART IMAGING INC.

Inventor： Sen-Huang Huang ,  Ren-Hau Gu

IPC: A61B5/02 ,  A61B5/024 ,  A61B5/00

Abstract: A physiological detection system including an image sensor, a converting unit, a retrieving unit and a processing unit is provided. The image sensor includes a plurality of pixels respectively configured to output a PPG signal. The converting unit is configured to convert a plurality of PPG signals of a plurality of pixels regions to a plurality of frequency domain signals. The retrieving unit is configured to respectively retrieve a spectral energy of the frequency domain signals corresponding to each of the pixel regions. The processing unit is configured to construct a 3D energy distribution according to the spectral energies.

公开(公告)号：US20190015049A1

公开(公告)日：2019-01-17

申请号：US16120531

申请日：2018-09-04

Applicant: PixArt Imaging Inc.

Inventor： Chih-Yuan Chuang ,  Cheng-Nan Tsai ,  Ming-Tsan Kao ,  Ren-Hau Gu ,  Yen-Min Chang

IPC: A61B5/00 ,  A61B5/024 ,  A61B5/1455

Abstract: A biometric detection module including a light source module, a detection region and a control module is provided. The light source module is configured to emit green light, red light and IR light in a time division manner to illuminate a skin surface. The detection region is configured to detect penetration light emitted from the light source module for illuminating the skin surface and passing through body tissues to correspondingly generate a green light signal, a red light signal and an IR light signal. The control module is configured to determine a filtering parameter according to the green light signal to accordingly filter the red light signal and the IR light signal, and calculate a biometric characteristic according to at least one of the green light signal, a filtered red light signal and a filtered IR light signal.

公开(公告)号：US10148864B2

公开(公告)日：2018-12-04

申请号：US15374499

申请日：2016-12-09

Applicant: PIXART IMAGING INC.

Inventor： Guo-Zhen Wang ,  Ren-Hau Gu ,  En-Feng Hsu

IPC: H04N5/232 ,  G06K9/00 ,  G02B7/36 ,  G06K7/14 ,  G06K7/10 ,  G02B7/28 ,  H04N5/369 ,  H04N13/232 ,  H04N13/229 ,  G02B3/00 ,  H04N13/00 ,  H04N13/257 ,  H04N13/218

Abstract: An imaging device including a pixel matrix and a processor is provided. The pixel matrix includes a plurality of phase detection pixels and a plurality of regular pixels. The processor performs autofocusing according to pixel data of the phase detection pixels, and determines an operating resolution of the regular pixels according to autofocused pixel data of the phase detection pixels, wherein the phase detection pixels are always-on pixels and the regular pixels are selectively turned on after the autofocusing is accomplished.

公开(公告)号：US09727160B2

公开(公告)日：2017-08-08

申请号：US13632381

申请日：2012-10-01

Applicant: PixArt Imaging Inc.

Inventor： Ren-Hau Gu ,  Yu-Hao Huang ,  Hsin-Chia Chen ,  Yen-Min Chang

IPC: G06F3/041 ,  G06F3/042 ,  G06F3/0354

CPC classification number: G06F3/0416 ,  G06F3/03547 ,  G06F3/0421

Abstract: There is provided a displacement detection device including a light source, an image sensor and a processing unit. The light source provides light to a finger with a light source parameter. The image sensor receives reflected light from the finger, outputs valid images when the light source is being turned on and outputs dark images when the light source is being turned off. The processing unit determines a contact status according to one of the dark images and one of the valid images, and calculates a displacement according to two of the valid images to accordingly adjust the light source parameter.

公开(公告)号：US09578253B2

公开(公告)日：2017-02-21

申请号：US13959225

申请日：2013-08-05

Applicant: PIXART IMAGING INC.

Inventor： Chun-Wei Chen ,  Ren-Hau Gu ,  Ching-Lin Chung

IPC: H04N5/235 ,  G06F3/033 ,  G06F3/03

CPC classification number: G06F3/0308 ,  G06F3/0304 ,  H04N5/2353 ,  H04N5/2354

Abstract: The optical processing apparatus includes a light source unit, a processing unit, and an image sensing unit, wherein the processing unit is electrically connected to the light source unit and the image sensing unit. The light source unit provides a beam of light. The processing unit defines a frame rate, defines a plurality of time instants within a time interval, and sets the light source unit to a luminance value at each of the time instants. A length of the time interval is shorter than the reciprocal of the frame rate. The luminance values are different and are within a range. The image sensing unit captures an image by an exposure time length at each of the time instants, wherein the exposure time lengths are the same.

Abstract translation: 光学处理装置包括光源单元，处理单元和图像感测单元，其中处理单元电连接到光源单元和图像感测单元。 光源单元提供光束。 处理单元定义帧速率，在时间间隔内定义多个时刻，并将光源单元设置为每个时刻的亮度值。 时间间隔的长度短于帧速率的倒数。 亮度值不同，在一定范围内。 图像感测单元在每个时刻的曝光时间长度捕获图像，其中曝光时间长度相同。