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公开(公告)号：US10757358B1
公开(公告)日：2020-08-25
申请号：US16431788
申请日：2019-06-05
Applicant: PRIMESENSOR TECHNOLOGY INC. , PixArt Imaging Inc.
Inventor： Chih-Huan Wu , Wen-Cheng Yen
Abstract: There is provided a photographing device having two output interfaces that respectively used to output a first image frame and a second image frame. The first image frame is provided to a processor of the photographing device to perform the feature extraction and tag the second image frame accordingly. The tagged second image frame is for the image recording of an external back end.
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2.发明申请公开(公告)号：US20200244931A1
公开(公告)日：2020-07-30
申请号：US16261569
申请日：2019-01-30
Applicant: PRIMESENSOR TECHNOLOGY INC.
Inventor： Wen-Han Yao , Chih-Huan Wu
Abstract: A motion detection method utilized for a motion sensor includes: capturing a monitoring image; entering a recording mode when one intensity change value between the monitoring image and a pre-stored background image is higher than a first threshold and a trigger signal is received from an auxiliary sensor; and entering the recording mode when the intensity change value is higher than a second threshold before the trigger signal is received; wherein the second threshold is higher than the first threshold.
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3.发明授权公开(公告)号：US10805579B2
公开(公告)日：2020-10-13
申请号：US16261569
申请日：2019-01-30
Applicant: PRIMESENSOR TECHNOLOGY INC.
Inventor： Wen-Han Yao , Chih-Huan Wu
Abstract: A motion detection method utilized for a motion sensor includes: capturing a monitoring image; entering a recording mode when one intensity change value between the monitoring image and a pre-stored background image is higher than a first threshold and a trigger signal is received from an auxiliary sensor; and entering the recording mode when the intensity change value is higher than a second threshold before the trigger signal is received; wherein the second threshold is higher than the first threshold.
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公开(公告)号：US10750099B2
公开(公告)日：2020-08-18
申请号：US16163525
申请日：2018-10-17
Applicant: PRIMESENSOR TECHNOLOGY INC.
Inventor： Wen-Han Yao , Chih-Huan Wu
Abstract: An image sensing method, comprising: (a) controlling an image sensor to apply a first frame rate to sense a first frame during a first frame period; (b) determining exposure variation in the first frame period; and (c) during one of the first frame period and a second frame period following the first frame period, switching the image sensor to apply a second frame rate different from the first frame rate to sense at least one third frame, when the step (b) determines the exposure variation exceeds a threshold level. A related image sensing system is also disclosed. Via such image sensing method, the frame switch delay of a conventional frame switch can be reduced.
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公开(公告)号：US20200128190A1
公开(公告)日：2020-04-23
申请号：US16163525
申请日：2018-10-17
Applicant: PRIMESENSOR TECHNOLOGY INC.
Inventor： Wen-Han Yao , Chih-Huan Wu
Abstract: An image sensing method, comprising: (a) controlling an image sensor to apply a first frame rate to sense a first frame during a first frame period; (b) determining exposure variation in the first frame period; and (c) during one of the first frame period and a second frame period following the first frame period, switching the image sensor to apply a second frame rate different from the first frame rate to sense at least one third frame, when the step (b) determines the exposure variation exceeds a threshold level. A related image sensing system is also disclosed. Via such image sensing method, the frame switch delay of a conventional frame switch can be reduced.
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Patent Agency Ranking
公开(公告)号：US11546540B2
公开(公告)日：2023-01-03
申请号：US17672028
申请日：2022-02-15
Applicant: PixArt Imaging Inc.
Inventor： Ren-Chieh Liu , Chih-Huan Wu , Yi-Hsien Ko , Han-Chi Liu
IPC: H04N5/3745 , H01L27/146 , H04N5/355 , H04N5/374
Abstract: There is provided a pixel circuit for performing analog operation including a photodiode, a first temporal circuit, a second temporal circuit and an operation circuit. Within a first interval, the photodiode detects first light energy to be stored in the first temporal circuit. Within a second interval, the photodiode detects second light energy to be stored in the second temporal circuit. Within an operation interval, the first temporal circuit outputs a first detection signal having a first pulse width according to the first light energy and outputs a second detection signal having a second pulse width according to the second light energy for being calculated by the operation circuit.
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公开(公告)号：US11212484B2
公开(公告)日：2021-12-28
申请号：US16924285
申请日：2020-07-09
Applicant: PixArt Imaging Inc.
Inventor： Chih-Huan Wu , Wen-Cheng Yen
Abstract: There is provided a photographing device having two output interfaces that respectively used to output a first image frame and a second image frame. The first image frame is provided to a processor of the photographing device to perform the feature extraction and tag the second image frame accordingly. The tagged second image frame is for the image recording of an external back end.
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公开(公告)号：US20210344881A1
公开(公告)日：2021-11-04
申请号：US17376127
申请日：2021-07-14
Applicant: PixArt Imaging Inc.
Inventor： Chih-Huan Wu , Wen-Han Yao
IPC: H04N7/18 , G08B13/196 , G06T7/246
Abstract: A method of an image sensor circuit includes: providing an event camera comprising at least one pixel unit; using the event camera to sense at least one current pixel value of the at least one pixel unit to detect whether at least one pixel value changes; when the at least one pixel value changes, using the event camera to trigger the digital processing circuit when the digital processing circuit is in a power saving mode and transmit information of the at least one pixel value to the digital processing circuit.
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公开(公告)号：US12207024B2
公开(公告)日：2025-01-21
申请号：US18111610
申请日：2023-02-20
Applicant: PixArt Imaging Inc.
Inventor： Chih-Huan Wu , Wen-Han Yao
IPC: H04N7/18 , G06T7/246 , G08B13/196
Abstract: A method of an image sensor circuit includes: providing an event camera comprising at least one pixel unit; using the event camera to sense at least one current pixel value of the at least one pixel unit to detect whether at least one pixel value changes; when the at least one pixel value changes, using the event camera to trigger the digital processing circuit when the digital processing circuit is in a power saving mode and transmit information of the at least one pixel value to the digital processing circuit.
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公开(公告)号：US12058467B2
公开(公告)日：2024-08-06
申请号：US18244296
申请日：2023-09-11
Applicant: PixArt Imaging Inc.
Inventor： Ren-Chieh Liu , Chih-Huan Wu , Yi-Hsien Ko , Han-Chi Liu
IPC: H04N25/772 , H01L27/146
CPC classification number: H04N25/772 , H01L27/14643
Abstract: There is provided a pixel circuit for performing analog operation including a photodiode, a first temporal circuit, a second temporal circuit and an operation circuit. Within a first interval, the photodiode detects first light energy to be stored in the first temporal circuit. Within a second interval, the photodiode detects second light energy to be stored in the second temporal circuit. Within an operation interval, the first temporal circuit outputs a first detection signal having a first pulse width according to the first light energy and outputs a second detection signal having a second pulse width according to the second light energy for being calculated by the operation circuit.
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