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).

  • Patent number: 11931282
    Abstract: The present disclosure provides a bracewear for spinal correction and a system for posture training. The system for posture training involves both active and passive corrective forces by using the bracewear and a biofeedback system to address the spinal correction, which can eliminate the adversity of conventional hard braces and reduce the psychological and physiological barriers to treatment.
    Type: Grant
    Filed: October 15, 2020
    Date of Patent: March 19, 2024
    Assignee: The Hong Kong Polytechnic University
    Inventors: Yiu-Wan Joanne Yip, Yin Ling Sit, Ting Hin Mak, Kit Lun Yick, Tsz Hei Cheung, Sui Pui Ng, Kenny Yat Hong Kwan, Mei Chun Cheung, Ming Fai Chan
  • Patent number: 11922689
    Abstract: 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: Grant
    Filed: February 19, 2021
    Date of Patent: March 5, 2024
    Assignee: MOTOROLA SOLUTIONS, INC.
    Inventors: Chong Hin Chee, Wei Lun Chan, Vincent Van Der Walt, Stuart James Boutell
  • Publication number: 20230404845
    Abstract: 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: Application
    Filed: June 17, 2022
    Publication date: December 21, 2023
    Inventors: TIEN-SZU HSU, SHU-JIN CHEN, YI-PING CHUNG, JIA-RUI XU, GENG-LIN LIU, CHUNG-LUN CHAN
  • Publication number: 20230405405
    Abstract: 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: Application
    Filed: June 17, 2022
    Publication date: December 21, 2023
    Inventors: TIEN-SZU HSU, SHU-JIN CHEN, YI-PING CHUNG, JIA-RUI XU, GENG-LIN LIU, CHUNG-LUN CHAN
  • Patent number: 11501731
    Abstract: 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: Grant
    Filed: April 8, 2020
    Date of Patent: November 15, 2022
    Assignee: MOTOROLA SOLUTIONS, INC.
    Inventors: Chong Hin Chee, Chong Keat Chua, Bijun Leong, Wei Lun Chan
  • Patent number: 11495006
    Abstract: 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: Grant
    Filed: May 3, 2020
    Date of Patent: November 8, 2022
    Assignee: Realtek Semiconductor Corp.
    Inventors: Chao-Hsun Yang, Shang-Lun Chan, Shih-Tse Chen, Chien-Hao Chen
  • Patent number: 11493036
    Abstract: 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: Grant
    Filed: May 19, 2020
    Date of Patent: November 8, 2022
    Assignee: Stackpole International Engineered Products, Ltd.
    Inventors: Paul Morton, Matthew Tyler Hughes, Theresa Kam Lun Chan, Michael Benjamin Sy
  • Publication number: 20220269887
    Abstract: 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: Application
    Filed: February 19, 2021
    Publication date: August 25, 2022
    Inventors: CHONG HIN CHEE, WEI LUN CHAN, VINCENT VAN DER WALT, STUART JAMES BOUTELL
  • Patent number: 11270442
    Abstract: 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: Grant
    Filed: January 16, 2020
    Date of Patent: March 8, 2022
    Assignee: Realtek Semiconductor Corp.
    Inventors: Chao-Hsun Yang, Shang-Lun Chan, Chun-Chang Wu, Shih-Tse Chen
  • Patent number: 11200681
    Abstract: 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: Grant
    Filed: January 16, 2020
    Date of Patent: December 14, 2021
    Assignee: Realtek Semiconductor Corp.
    Inventors: Shang-Lun Chan, Chao-Hsun Yang, Chun-Chang Wu, Shih-Tse Chen
  • Publication number: 20210352206
    Abstract: 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: Application
    Filed: May 8, 2020
    Publication date: November 11, 2021
    Inventors: Kei Lun Chan, David John Fergusson, Ian Sheng Lor, John Marsden, Marcin Wojciech Dudar, Mark Creedon Palfreeman, Peter Aidan O'Kelly, Steven Mark Walsh
  • Publication number: 20210319765
    Abstract: 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: Application
    Filed: April 8, 2020
    Publication date: October 14, 2021
    Inventors: CHONG HIN CHEE, CHONG KEAT CHUA, BIJUN LEONG, WEI LUN CHAN
  • Patent number: 11095924
    Abstract: 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: Grant
    Filed: May 28, 2020
    Date of Patent: August 17, 2021
    Assignee: MOTOROLA SOLUTIONS, INC.
    Inventors: Chong Hin Chee, Wei Lun Chan, Bijun Leong, Chong Keat Chua
  • Patent number: 11076139
    Abstract: 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: Grant
    Filed: July 3, 2019
    Date of Patent: July 27, 2021
    Assignee: REALTEK SEMICONDUCTOR CORPORATION
    Inventors: Yang-Ting Chou, Tsung-Hsuan Li, Shang-Lun Chan, Shih-Tse Chen
  • Publication number: 20210182588
    Abstract: 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: Application
    Filed: May 3, 2020
    Publication date: June 17, 2021
    Inventors: Chao-Hsun Yang, Shang-Lun Chan, Shih-Tse Chen, Chien-Hao Chen
  • Patent number: 10990653
    Abstract: 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: Grant
    Filed: August 21, 2019
    Date of Patent: April 27, 2021
    Assignee: MOTOROLA SOLUTIONS, INC.
    Inventors: Guo Dong Gan, Swee Yee Soo, Moheinvarman Subramaniam, Wei Lun Chan
  • Patent number: 10964029
    Abstract: 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: Grant
    Filed: October 15, 2019
    Date of Patent: March 30, 2021
    Assignee: Realtek Semiconductor Corp.
    Inventors: Shang-Lun Chan, Tsung-Hsuan Li, Chao-Hsun Yang, Shih-Tse Chen
  • Publication number: 20210074001
    Abstract: 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: Application
    Filed: January 16, 2020
    Publication date: March 11, 2021
    Inventors: Shang-Lun Chan, Chao-Hsun Yang, Chun-Chang Wu, Shih-Tse Chen
  • Publication number: 20210074002
    Abstract: 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: Application
    Filed: January 16, 2020
    Publication date: March 11, 2021
    Inventors: Chao-Hsun Yang, Shang-Lun Chan, Chun-Chang Wu, Shih-Tse Chen
  • Publication number: 20210056178
    Abstract: 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: Application
    Filed: August 21, 2019
    Publication date: February 25, 2021
    Inventors: GUO DONG GAN, SWEE YEE SOO, MOHEINVARMAN SUBRAMANIAM, WEI LUN CHAN