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公开(公告)号：US20190394415A1
公开(公告)日：2019-12-26
申请号：US16018015
申请日：2018-06-25
Applicant: PrimeSensor Technology Inc.
Inventor： Shiue-Shin Liu
Abstract: The present invention discloses an image sensor circuit and a ramp signal generator thereof. The image sensor circuit includes: an active pixel sensor (APS) array which includes plural pixel circuits arranged in an array of columns and rows; plural slope analog-to-digital converter (ADC), wherein each of the slope ADC is coupled to the corresponding column, and generates a digital sampling signal according to a ramp signal together with a pixel signal including a reset signal and a image signal which are generated by the pixel circuit located in the selected row and in the column corresponding to the slope ADC; and the ramp signal generator, which generates the ramp signal, wherein the ramp signal generator includes an active integrator, and the active integrator generates the ramp signal by charging an integration capacitor with a gain current.
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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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公开(公告)号：US20190199976A1
公开(公告)日：2019-06-27
申请号：US15854697
申请日：2017-12-26
Applicant: PRIMESENSOR TECHNOLOGY INC.
Inventor： Hsueh-Te Chao , Wen-Han Yao
CPC classification number: H04N7/188 , G01J5/0025 , G01J5/10 , H04N5/23245 , H04N7/185
Abstract: A motion detection device is matched with a passive detector utilized to detect an object and to accordingly generate a triggering signal. The motion detection device includes an image capturing unit and an operating processor. The operating processor is electrically connected with the image capturing unit, the operating processor is adapted to switch the image capturing unit from a sleep mode to a wakeup mode for motion detection while being triggered by the triggering signal, and further to optionally actuate an external host in accordance with an analysis result of the motion detection. A motion detection method applied to the motion detection device includes receiving the triggering signal, switching the image capturing unit to the wakeup mode for capturing the first monitoring image, analyzing the first monitoring image to determine existence of the object, and actuating the external host in accordance with an analysis result of the first monitoring image.
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公开(公告)号：US20210021752A1
公开(公告)日：2021-01-21
申请号：US16513712
申请日：2019-07-17
Applicant: PRIMESENSOR TECHNOLOGY INC.
Inventor： Wen-Han YAO
IPC: H04N5/235
Abstract: There is provided an image sensor for exposing a plurality of pixel rows within a frame period using a rolling shutter. The image sensor includes a processor for calculating bright-dark distribution patterns of image frames. The processor further adjusts the frame period to be substantially identical to a predetermined period by changing a total number of exposed line times within the frame period when a difference between the bright-dark distribution patterns of two image frames is larger than a predetermined threshold.
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5.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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Patent Agency Ranking
公开(公告)号：US20200228760A1
公开(公告)日：2020-07-16
申请号：US16833677
申请日：2020-03-30
Applicant: PRIMESENSOR TECHNOLOGY INC.
Inventor： Wen-Cheng Yen , Wen-Han Yao
IPC: H04N7/18 , G08B13/196 , G06T7/246
Abstract: A smart motion detection device with a determining method includes a memory, a processor, and a sensor array coupled to the memory and the processor. An image captured by the sensor array is processed by the processor. The sensor array is adapted to pre-store the image into the memory when the processor is operated in the sleep mode, and the pre-stored image is transmitted to the processor when the processor is operated in the wakeup mode. The sensor array includes a comparator adapted to generate an alarm signal for switching the processor from the sleep mode to the wakeup mode in accordance with a comparison result of the pre-stored image. The determining method includes the processor analyzing images captured by the sensor array when the sensor array is activated to capture the images, and the processor analyzing images pre-stored inside the memory when the sensor array is not activated.
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公开(公告)号：US20190199977A1
公开(公告)日：2019-06-27
申请号：US16018025
申请日：2018-06-25
Applicant: PRIMESENSOR TECHNOLOGY INC.
Inventor： Wen-Cheng Yen , Wen-Han Yao
IPC: H04N7/18 , G06T7/246 , G08B13/196
CPC classification number: H04N7/188 , G06T7/248 , G06T2207/30232 , G08B13/19604
Abstract: A smart motion detection device with a determining method includes a memory, a processor, and a sensor array coupled to the memory and the processor. An image captured by the sensor array is processed by the processor. The sensor array is adapted to pre-store the image into the memory when the processor is operated in the sleep mode, and the pre-stored image is transmitted to the processor when the processor is operated in the wakeup mode. The sensor array includes a comparator adapted to generate an alarm signal for switching the processor from the sleep mode to the wakeup mode in accordance with a comparison result of the pre-stored image. The determining method includes the processor analyzing images captured by the sensor array when the sensor array is activated to capture the images, and the processor analyzing images pre-stored inside the memory when the sensor array is not activated.
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公开(公告)号：US20210027590A1
公开(公告)日：2021-01-28
申请号：US16521535
申请日：2019-07-24
Applicant: PixArt Imaging Inc. , PRIMESENSOR TECHNOLOGY INC.
Inventor： Han-Chang Lin , Shiue-Shin Liu , Shuen-Yin Bai
Abstract: A smart motion detection device includes an image sensor, an infrared sensor and a processor. The image sensor captures a monitoring image. The infrared sensor detects a thermal motion condition and provides an alarm signal accordingly. The processor executes an image recording mode of the image sensor only according to the alarm signal when an image quality of the monitoring image is unacceptable.
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9.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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