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41.发明申请Distance-measuring device with increased signal-to-noise ratio and method thereof 有权具有增加的信噪比的距离测量装置及其方法公开(公告)号：US20130335726A1
公开(公告)日：2013-12-19
申请号：US13974011
申请日：2013-08-22
Applicant: PixArt Imaging Inc.
Inventor： En-Feng Hsu , Yen-Min Chang
IPC: G01C3/08
Abstract: A method of increasing signal-to-noise ratio of a distance-measuring device includes a light-emitting component emitting a detecting light to a measured object during an emitting period for generating a reflected light, a delay period after the light-emitting component emitting the detecting light, a light-sensing component sensing the energy of the reflected light to generate a light-sensing signal, and obtaining a measured distance between the distance-measuring device and the measured object according to the energy of the detecting light and the light-sensing signal. Since the measured distance is longer than a predetermined shortest measured distance, the method can accordingly calculate a proper delay period for ensuring that the reflected light reaches the light-sensing component after the delay period. In this way, the light-sensing component does not sense the background light during the delay period, so that the signal-to-noise ratio of the light-sensing signal is improved.
Abstract translation: 一种提高距离测量装置的信噪比的方法包括在用于产生反射光的发光周期期间向测量对象发射检测光的发光部件，发光部件发射后的延迟时间 检测光，检测反射光的能量以产生光感测信号的光感测部件，以及根据检测光和光的能量获得距离测量装置和被测量物体之间的测量距离 传感信号。 由于测量距离长于预定的最短测量距离，因此该方法可以相应地计算适当的延迟周期，以确保在延迟周期之后反射光到达光感测部件。 以这种方式，在延迟时段期间，感光元件不会感测到背景光，从而提高了光感测信号的信噪比。
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公开(公告)号：US20130293867A1
公开(公告)日：2013-11-07
申请号：US13939197
申请日：2013-07-11
Applicant: PixArt Imaging Inc.
Inventor： En-Feng Hsu , Chi-Chieh Liao , Chih-Hung Lu , Tsung-Yi Su
IPC: G01C3/08
Abstract: A distance-measuring device is utilized for measuring a measured distance between a measured object and the distance-measuring device. The distance-measuring device reduces the effect of a background light and a flicking light by removing the part corresponding to the background light and the flicking light from light-sensed signals generated by an image sensor of the distance-measuring device. In addition, the distance-measuring device calculates a calibrating parameter for calibrating an assemble-error angle of the distance-measuring device, according to an imaging location of a reflective light obtained by measuring a calibrating object with a predetermined distance. In this way, the distance-measuring device can correctly calculate out the measured distance.
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公开(公告)号：US11715429B2
公开(公告)日：2023-08-01
申请号：US17699380
申请日：2022-03-21
Applicant: PixArt Imaging Inc.
Inventor： En-Feng Hsu , Meng-Huan Hsieh
CPC classification number: G09G3/3406 , G09G3/3648 , G09G2320/0626 , G09G2330/021 , G09G2360/144
Abstract: There is provided a portable electronic device including a backlight module, an ambient light sensor, a proximity sensor and a processing unit. The backlight module illuminates with backlight brightness. The ambient light sensor is configured to detect ambient light intensity. The proximity sensor is configured to detect an object. The processing unit is configured to activate the proximity sensor when the ambient light intensity detected by the ambient light sensor is lower than a predetermined value or decreases more than a predetermined range, and to maintain or reduce the backlight brightness according to a detection result of the proximity sensor. There is further provided an automatic detection method.
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公开(公告)号：US11632502B2
公开(公告)日：2023-04-18
申请号：US17471260
申请日：2021-09-10
Applicant: PIXART IMAGING INC.
Inventor： En-Feng Hsu
IPC: H04N5/235
Abstract: There is provided an optical sensor that acquires a first image frame corresponding to a first flicker period and acquires a second image frame corresponding to a second flicker period. The optical sensor adds the first image frame to the second image frame to generate a sum of image frames for the motion detection. Or, the optical sensor respectively adds pixel data of every two pixels in neighboring rows of the first image frame and the second image frame to generate a low-resolution image frame for the motion detection.
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公开(公告)号：US11455044B2
公开(公告)日：2022-09-27
申请号：US16909298
申请日：2020-06-23
Applicant: PixArt Imaging Inc.
Inventor： Sen-Huang Huang , Ming-Tsan Kao , En-Feng Hsu , Yu-Hao Huang , Nien-Tse Chen
Abstract: The present invention provides a motion detecting system, which includes a light source module, a plurality of image sensors and a control unit. The light source module illuminates at least one object. The image sensors respectively detect the object under the light emitted by the light source module to generate a plurality of detection results. The control unit is coupled to the image sensors, and generates a control command according to the detection results.
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Patent Agency Ranking
公开(公告)号：US11418729B2
公开(公告)日：2022-08-16
申请号：US17197355
申请日：2021-03-10
Applicant: PixArt Imaging Inc.
Inventor： Jung-Tai Lin , En-Feng Hsu
Abstract: An image sensor including a pixel matrix and an opaque layer is provided. The pixel matrix includes a plurality of unblocked pixels, a plurality of first pixels and a plurality of second pixels. The opaque layer covers upon a first region, which is a part of each first pixel, and upon a second region, which is a part of each second pixel, but does not cover upon the unblocked pixels, wherein the first region and the second region are symmetrically arranged in a first direction, and uncovered regions of the first pixels and the second pixels are arranged to be larger at a pixel edge than at a pixel center.
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公开(公告)号：US20210295622A1
公开(公告)日：2021-09-23
申请号：US17342898
申请日：2021-06-09
Applicant: PixArt Imaging Inc.
Inventor： En-Feng Hsu , Ming-Tsan Kao
Abstract: An event detecting device operates in a driving mode or a parking mode. In the driving mode, the event detecting device performs high quality video recording using an image-capturing circuit. In the parking mode, the event detecting device periodically activates the image-capturing circuit for event detection and starts to perform low quality video recording after detecting a specific event.
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公开(公告)号：USRE48624E1
公开(公告)日：2021-07-06
申请号：US15586759
申请日：2017-05-04
Applicant: PixArt Imaging Inc.
Inventor： En-Feng Hsu , Ming-Tsan Kao
Abstract: An event data recorder (EDR) is configured to operate in a driving mode and a parking mode. In the driving mode, the EDR is configured to perform high quality video recording using an image-capturing circuit. In the parking mode, the EDR is configured to periodically activate the image-capturing circuit for event detection and start to perform low quality video recording after detecting a specific event.
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公开(公告)号：US10979656B2
公开(公告)日：2021-04-13
申请号：US16801359
申请日：2020-02-26
Applicant: PixArt Imaging Inc.
Inventor： Jung-Tai Lin , En-Feng Hsu
Abstract: An imaging device including a condenser lens and an image sensor is provided. The image sensor is configured to sense light penetrating the condenser lens and includes a pixel matrix, an opaque layer, a plurality of microlenses and an infrared filter layer. The pixel matrix includes a plurality of infrared pixels, a plurality of first pixels and a plurality of second pixels. The opaque layer covers upon a first region of the first pixels and a second region of the second pixels, wherein the first region and the second region are mirror-symmetrically arranged in a first direction. The plurality of microlenses is arranged upon the pixel matrix. The infrared filter layer covers upon the infrared pixels.
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公开(公告)号：US10747326B2
公开(公告)日：2020-08-18
申请号：US14097442
申请日：2013-12-05
Applicant: PIXART IMAGING INC.
Inventor： Sen-Huang Huang , Ming-Tsan Kao , En-Feng Hsu , Yu-Hao Huang , Nien-Tse Chen
IPC: G06F3/01 , G06K9/00 , H04N5/247 , G06F3/0346
Abstract: The present invention provides a motion detecting system, which includes a light source module, a plurality of image sensors and a control unit. The light source module illuminates at least one object. The image sensors respectively detect the object under the light emitted by the light source module to generate a plurality of detection results. The control unit is coupled to the image sensors, and generates a control command according to the detection results.
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