Patents by Inventor Lun Chan
Lun Chan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 12354354Abstract: A process of collaboration between different agencies for classifying an event captured in a video stream. In operation, a video stream captured by a camera operated by a public-safety agency is analyzed using a first video analytics engine trained using a first set of video analytics data associated with the public-safety agency and an abnormal event with respect to a person or object captured in the video stream is detected. When it is determined that the video stream is captured at a location that is proximity to an operating environment of a non-public-safety agency, a query is transmitted to a second video analytics engine trained using a second set of video analytics data associated with the non-public-safety agency. The abnormal event is reclassified as a normal event when a response from the second video analytics engine indicates that the abnormal event is normal within the operating environment of the non-public-safety agency.Type: GrantFiled: March 19, 2024Date of Patent: July 8, 2025Assignee: MOTOROLA SOLUTIONS, INC.Inventors: Wooi Ping Teoh, Wei Lun Chan, Tejeash Duraimanickam, Chun Wen Ooi
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Publication number: 20240416335Abstract: Multichannel pipettes, electroporation systems utilizing the multichannel pipettes and methods for electroporating a cell. The electroporation system includes a multichannel pipette, a pipette tip(s), a pipette docking assembly, and a pulse generator. The pipette docking assembly includes a pipette station, a pipette station guard, and a reservoir.Type: ApplicationFiled: June 10, 2024Publication date: December 19, 2024Inventors: Wui Khen Kevin LIAW, Kuan Moon Boo, Huei Steven YEO, Wern Yuh FOO, Joshua Mathew MEAD, Justina Linkai BONG, Mikko MAKINEN, Mio Xiu Lu LING, Way Xuang LEE, Wen Lun CHAN, Yunxiang LIU
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Patent number: 11922689Abstract: A process of augmenting images of incident scenes with object descriptions retrieved from an audio stream. In operation, an electronic computing device detects an object of interest in an image captured corresponding to an incident scene and identifies an audio stream linked to an incident identifier of an incident that occurred at the incident scene. The electronic computing device then determines whether the audio stream contains an audio description of the detected object of interest. When it is determined that the audio stream contains the audio description of the detected object of interest, the electronic computing device generates a visual or audio prompt corresponding to the audio description of the detected object of interest and plays back the visual or audio prompt via a corresponding display or audio-output component communicatively coupled to the electronic computing device.Type: GrantFiled: February 19, 2021Date of Patent: March 5, 2024Assignee: MOTOROLA SOLUTIONS, INC.Inventors: Chong Hin Chee, Wei Lun Chan, Vincent Van Der Walt, Stuart James Boutell
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Publication number: 20230404845Abstract: A foam stick includes a tube body, a core, and two covers. The tube body has an accommodating groove with two open ends. The core is disposed in the accommodating groove of the tube body. The two covers are disposed at both ends of the tube body to close the accommodating groove. The foam stick is composed of the tube body, the core and the covers, so the material utilization rate is high. Through the combination of the tube body, the core and the covers, the foam stick has different characteristics and can be used as rollers or floats.Type: ApplicationFiled: June 17, 2022Publication date: December 21, 2023Inventors: TIEN-SZU HSU, SHU-JIN CHEN, YI-PING CHUNG, JIA-RUI XU, GENG-LIN LIU, CHUNG-LUN CHAN
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Publication number: 20230405405Abstract: A balance pad includes a base. A plurality of first pillars and a peripheral wall are uprightly disposed on the base. The peripheral wall surrounds the first pillars so that the first pillars are located within the peripheral wall. Thereby, the first pillars reduce the stability of the balance pad to increase the difficulty of doing balance exercise. The peripheral wall surrounds the first pillars, so that the first pillars can abut against the peripheral wall to avoid excessive inclination of the first pillars to cause injury to a user.Type: ApplicationFiled: June 17, 2022Publication date: December 21, 2023Inventors: TIEN-SZU HSU, SHU-JIN CHEN, YI-PING CHUNG, JIA-RUI XU, GENG-LIN LIU, CHUNG-LUN CHAN
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Patent number: 11501731Abstract: A process for operating an electronic computing device to assign video streams to watcher devices. The electronic computing device detects objects of interest within a field-of-view of a camera as a function of incident context information. The electronic computing device obtains video display characteristics associated with watcher devices and further determines, based on respective positions of the objects of interest within the field-of-view, a plurality of sub-regions each enclosing at least one of the detected objects of interest and having one or more video attributes. The electronic computing device then assigns, based on the video display characteristics associated with the watcher devices and the video attributes of the sub-regions, each of the sub-regions to a respectively selected one of the watcher devices. The video streams respectively captured corresponding to each of the assigned sub-regions of interest are then transmitted to the respectively selected one of the watcher devices.Type: GrantFiled: April 8, 2020Date of Patent: November 15, 2022Assignee: MOTOROLA SOLUTIONS, INC.Inventors: Chong Hin Chee, Chong Keat Chua, Bijun Leong, Wei Lun Chan
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Patent number: 11493036Abstract: A variable displacement vane pump is described. The pump includes a control chamber provided between a housing and a control slide. A pressure-controlled relief valve is in fluid communication with the outlet path and moves to block or unblock a relief port based on output pressure of the lubricant. A feedback channel fluidly connects the control chamber to an inlet path of the pump. The feedback channel further connects to a control port that is connected to a main control valve. The relief valve and control valve are distinct and not fluidly connected. The relief valve moves once the pressure in the outlet path exceeds a predetermined amount, opening the relief port, and thus delivers a portion of the output lubricant to the control chamber via the relief port, thereby pressurizing the control chamber and reducing eccentricity of the pump by displacing the control slide.Type: GrantFiled: May 19, 2020Date of Patent: November 8, 2022Assignee: Stackpole International Engineered Products, Ltd.Inventors: Paul Morton, Matthew Tyler Hughes, Theresa Kam Lun Chan, Michael Benjamin Sy
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Patent number: 11495006Abstract: An object detection method and an associated electronic device are provided, wherein the object detection method includes: utilizing an image processing circuit to determine whether motion occurs in an image to generate a determination result; selectively utilizing a specific bounding box to identify a target object to generate an identification result according to the determination result, wherein the specific bounding box represents a location of the target object in a previous image; and selectively updating information of the specific bounding box according to the identification result.Type: GrantFiled: May 3, 2020Date of Patent: November 8, 2022Assignee: Realtek Semiconductor Corp.Inventors: Chao-Hsun Yang, Shang-Lun Chan, Shih-Tse Chen, Chien-Hao Chen
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Publication number: 20220269887Abstract: A process of augmenting images of incident scenes with object descriptions retrieved from an audio stream. In operation, an electronic computing device detects an object of interest in an image captured corresponding to an incident scene and identifies an audio stream linked to an incident identifier of an incident that occurred at the incident scene. The electronic computing device then determines whether the audio stream contains an audio description of the detected object of interest. When it is determined that the audio stream contains the audio description of the detected object of interest, the electronic computing device generates a visual or audio prompt corresponding to the audio description of the detected object of interest and plays back the visual or audio prompt via a corresponding display or audio-output component communicatively coupled to the electronic computing device.Type: ApplicationFiled: February 19, 2021Publication date: August 25, 2022Inventors: CHONG HIN CHEE, WEI LUN CHAN, VINCENT VAN DER WALT, STUART JAMES BOUTELL
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Patent number: 11270442Abstract: A motion image integration method includes acquiring a raw image, detecting a first motion region image and a second motion region image by using a motion detector according to the raw image, merging the first motion region image with the second motion region image for generating a motion object image according to a relative position between the first motion region image and the second motion region image, and cropping the raw image to generate a sub-image corresponding to the motion object image according to the motion object image. A range of the motion object image is greater than or equal to a total range of the first motion region image and the second motion region image. Shapes of the first motion region image, the second motion region image, and the motion object image are polygonal shapes.Type: GrantFiled: January 16, 2020Date of Patent: March 8, 2022Assignee: Realtek Semiconductor Corp.Inventors: Chao-Hsun Yang, Shang-Lun Chan, Chun-Chang Wu, Shih-Tse Chen
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Patent number: 11200681Abstract: A motion detection method includes acquiring a raw image, detecting a motion object image according to the raw image by using a motion detector, cropping the raw image to generate a sub-image according to the motion object image, and inputting the sub-image to a processor for determining if a motion object of the sub-image matches with a detection category. The processor includes a neural network. The shape of the sub-image is a polygonal shape.Type: GrantFiled: January 16, 2020Date of Patent: December 14, 2021Assignee: Realtek Semiconductor Corp.Inventors: Shang-Lun Chan, Chao-Hsun Yang, Chun-Chang Wu, Shih-Tse Chen
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Publication number: 20210352206Abstract: A method for configuring a field of view of a digital media frame. The method comprises analysing a digital image to identify at least one first portion of the digital image having a first predetermined characteristic. Determining an optimum location within the field of view. Positioning the identified at least one first portion of the digital image within the optimum location.Type: ApplicationFiled: May 8, 2020Publication date: November 11, 2021Inventors: Kei Lun Chan, David John Fergusson, Ian Sheng Lor, John Marsden, Marcin Wojciech Dudar, Mark Creedon Palfreeman, Peter Aidan O'Kelly, Steven Mark Walsh
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Publication number: 20210319765Abstract: A process for operating an electronic computing device to assign video streams to watcher devices. The electronic computing device detects objects of interest within a field-of-view of a camera as a function of incident context information. The electronic computing device obtains video display characteristics associated with watcher devices and further determines, based on respective positions of the objects of interest within the field-of-view, a plurality of sub-regions each enclosing at least one of the detected objects of interest and having one or more video attributes. The electronic computing device then assigns, based on the video display characteristics associated with the watcher devices and the video attributes of the sub-regions, each of the sub-regions to a respectively selected one of the watcher devices. The video streams respectively captured corresponding to each of the assigned sub-regions of interest are then transmitted to the respectively selected one of the watcher devices.Type: ApplicationFiled: April 8, 2020Publication date: October 14, 2021Inventors: CHONG HIN CHEE, CHONG KEAT CHUA, BIJUN LEONG, WEI LUN CHAN
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Patent number: 11095924Abstract: A process for providing a time-compressed preview of a pre-buffered video during a push-to-video (PTV) communication session. A video communication device detects a PTV activation command and analyzes a pre-buffered video to detect objects of interest. The video communication device then establishes a PTV communication session with a second video communication device to transmit a time-compressed preview of the pre-buffered video in which some of the video segments in which the objects of interest appear are configured for accelerated playback at the second video communication device. The video communication device transmits a live PTV stream for synchronous playback at the second video communication device only after the transmission of the time-compressed preview of the pre-buffered video is completed.Type: GrantFiled: May 28, 2020Date of Patent: August 17, 2021Assignee: MOTOROLA SOLUTIONS, INC.Inventors: Chong Hin Chee, Wei Lun Chan, Bijun Leong, Chong Keat Chua
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Patent number: 11076139Abstract: Disclosed are a color reconstruction device and method capable of accurately recovering the missing color of a target pixel. The device includes: a direction-characteristic estimation circuit calculating a horizontal-variation characteristic and a vertical-variation characteristic according to a first color of a target pixel and the values of pixels within a reference range, in which the target pixel is in the reference range and a current value of the target pixel is a first color value; an edge-texture decision circuit determining which of N predetermined relations matches the relation between the horizontal-variation characteristic and the vertical-variation characteristic and thereby determining the directional characteristic of the target pixel, in which the N is not less than four; and a color recovery circuit calculating a second and a third color values of the target pixel according to the directional characteristic and the values of the pixels within the reference range.Type: GrantFiled: July 3, 2019Date of Patent: July 27, 2021Assignee: REALTEK SEMICONDUCTOR CORPORATIONInventors: Yang-Ting Chou, Tsung-Hsuan Li, Shang-Lun Chan, Shih-Tse Chen
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Publication number: 20210182588Abstract: An object detection method and an associated electronic device are provided, wherein the object detection method includes: utilizing an image processing circuit to determine whether motion occurs in an image to generate a determination result; selectively utilizing a specific bounding box to identify a target object to generate an identification result according to the determination result, wherein the specific bounding box represents a location of the target object in a previous image; and selectively updating information of the specific bounding box according to the identification result.Type: ApplicationFiled: May 3, 2020Publication date: June 17, 2021Inventors: Chao-Hsun Yang, Shang-Lun Chan, Shih-Tse Chen, Chien-Hao Chen
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Patent number: 10990653Abstract: A user's device will periodically send short PTT bursts to an application talkgroup and wait for an acknowledgement (ACK). The acknowledgement will allow the software application to execute the application as part of the site license. If the site license is used up (i.e., a maximum number of simultaneous users has been reached), then a negative acknowledgment (NACK) will be sent to the device, and the software will deny the user access to the software.Type: GrantFiled: August 21, 2019Date of Patent: April 27, 2021Assignee: MOTOROLA SOLUTIONS, INC.Inventors: Guo Dong Gan, Swee Yee Soo, Moheinvarman Subramaniam, Wei Lun Chan
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Patent number: 10964029Abstract: A method of updating background model for an image processing device is disclosed. The method includes receiving at least a background image, counting a number of occurrences of a color of each pixel of the background image according to a color information of each pixel of the at least a background image, to establish a background model including a statistical color information about the color and the number of occurrences of the color, receiving a current image, and determining whether to update the number of occurrences of the color in the background model corresponding to a color of each pixel of the current image according to a color information of each pixel of the current image and a result of comparing a random number with a threshold.Type: GrantFiled: October 15, 2019Date of Patent: March 30, 2021Assignee: Realtek Semiconductor Corp.Inventors: Shang-Lun Chan, Tsung-Hsuan Li, Chao-Hsun Yang, Shih-Tse Chen
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Publication number: 20210074002Abstract: A motion image integration method includes acquiring a raw image, detecting a first motion region image and a second motion region image by using a motion detector according to the raw image, merging the first motion region image with the second motion region image for generating a motion object image according to a relative position between the first motion region image and the second motion region image, and cropping the raw image to generate a sub-image corresponding to the motion object image according to the motion object image. A range of the motion object image is greater than or equal to a total range of the first motion region image and the second motion region image. Shapes of the first motion region image, the second motion region image, and the motion object image are polygonal shapes.Type: ApplicationFiled: January 16, 2020Publication date: March 11, 2021Inventors: Chao-Hsun Yang, Shang-Lun Chan, Chun-Chang Wu, Shih-Tse Chen
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Publication number: 20210074001Abstract: A motion detection method includes acquiring a raw image, detecting a motion object image according to the raw image by using a motion detector, cropping the raw image to generate a sub-image according to the motion object image, and inputting the sub-image to a processor for determining if a motion object of the sub-image matches with a detection category. The processor includes a neural network. The shape of the sub-image is a polygonal shape.Type: ApplicationFiled: January 16, 2020Publication date: March 11, 2021Inventors: Shang-Lun Chan, Chao-Hsun Yang, Chun-Chang Wu, Shih-Tse Chen