Patents by Inventor Han Yao

Han Yao 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).

  • Publication number: 20220051011
    Abstract: Disclosed are systems and methods for extracting content based on image analysis. A method may include receiving content including at least an image depicting a coupon; converting the received content into a larger image including the image depicting the coupon; determining, utilizing one or more neural networks, the image depicting the coupon within the larger image, wherein determining the image depicting the coupon comprises: segmenting a foreground bounding box including the image depicting the coupon from background image portions of the image; cropping the larger image based on the bounding box, wherein the cropped image consists of the image depicting the coupon; determining text included in the cropped image; and extracting information included in the coupon based on the determined text.
    Type: Application
    Filed: October 28, 2021
    Publication date: February 17, 2022
    Inventors: Umang PATEL, Sridharan PALANIAPPAN, Rofaida ABDELAAL, Chun-Han YAO
  • Publication number: 20210385401
    Abstract: There is provided a pixel circuit including a first circuit and a second circuit. The first circuit is used to output a first voltage associated with exposure intensity. The second circuit is used to output a second voltage associated with exposure time interval. The processor multiples the first voltage to a ratio between a reference voltage and the second voltage to obtain an actual light intensity, wherein the reference voltage is a voltage value outputted by the second circuit of a dummy pixel.
    Type: Application
    Filed: October 13, 2020
    Publication date: December 9, 2021
    Inventor: Wen-Han YAO
  • Patent number: 11188746
    Abstract: Disclosed are systems and methods for extracting content based on image analysis. A method may include receiving content including at least an image depicting a coupon; converting the received content into a larger image including the image depicting the coupon; determining, utilizing one or more neural networks, the image depicting the coupon within the larger image, wherein determining the image depicting the coupon comprises: segmenting a foreground bounding box including the image depicting the coupon from background image portions of the image; cropping the larger image based on the bounding box, wherein the cropped image consists of the image depicting the coupon; determining text included in the cropped image; and extracting information included in the coupon based on the determined text.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: November 30, 2021
    Assignee: Verizon Media Inc.
    Inventors: Umang Patel, Sridharan Palaniappan, Rofaida Abdelaal, Chun-Han Yao
  • Publication number: 20210344881
    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.
    Type: Application
    Filed: July 14, 2021
    Publication date: November 4, 2021
    Applicant: PixArt Imaging Inc.
    Inventors: Chih-Huan Wu, Wen-Han Yao
  • Publication number: 20210329193
    Abstract: A motion detection method applied into an image sensor device includes: providing a plurality of regions of interest (ROIs) on at least one monitoring image; for each region of interest (ROI): detecting whether at least one motion event occurs within the each ROI; and determining a priority level of the each ROI according to at least one feature information of the at least one motion event; and determining an alarm schedule of the ROIs for a user according to a plurality of priority levels of the RIOs.
    Type: Application
    Filed: May 20, 2021
    Publication date: October 21, 2021
    Inventors: Chih-Huan Wu, Yi-Hsien Ko, Wen-Han Yao
  • Publication number: 20210266449
    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.
    Type: Application
    Filed: May 13, 2021
    Publication date: August 26, 2021
    Inventor: Wen-Han YAO
  • Patent number: 11039081
    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.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: June 15, 2021
    Assignee: PIXART IMAGING INC.
    Inventor: Wen-Han Yao
  • Publication number: 20210144343
    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.
    Type: Application
    Filed: January 18, 2021
    Publication date: May 13, 2021
    Inventors: Wen-Cheng Yen, Wen-Han Yao
  • Patent number: 10944941
    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.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: March 9, 2021
    Assignee: PixArt Imaging Inc.
    Inventors: Wen-Cheng Yen, Wen-Han Yao
  • Publication number: 20210021752
    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.
    Type: Application
    Filed: July 17, 2019
    Publication date: January 21, 2021
    Inventor: Wen-Han YAO
  • Publication number: 20200404223
    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.
    Type: Application
    Filed: September 2, 2020
    Publication date: December 24, 2020
    Inventors: Wen-Han Yao, Chih-Huan Wu
  • Patent number: 10805579
    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.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: October 13, 2020
    Assignee: PRIMESENSOR TECHNOLOGY INC.
    Inventors: Wen-Han Yao, Chih-Huan Wu
  • Patent number: 10792242
    Abstract: A method for reducing skin sagging and/or improving skin brightness is provided. The method comprises administering to a subject in need an effective amount of gum tragacanth composition, wherein the gum tragacanth composition comprises gum tragacanth and a pharmaceutically acceptable carrier and is topically administered to the skin at least once a day to achieve the effects of maintaining skin tightness and moisture and improving skin brightness.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: October 6, 2020
    Assignee: TCI CO., LTD.
    Inventors: Yung-Hsiang Lin, Tsai-Han Yao
  • Publication number: 20200284575
    Abstract: There is provided an imaging system including a camera and a control host. The camera identifies ambient light intensity and performs trigger event detection in a low power mode. When the camera detects a trigger event in the low power mode, the control host is woken up. The camera also determines an exposure mode according the ambient light intensity and informs the exposure mode to the control host such that an operating mode of the control host after being woken up matches the exposure mode of the camera.
    Type: Application
    Filed: May 22, 2020
    Publication date: September 10, 2020
    Inventors: WEN-HAN YAO, WEN-CHENG YEN, HAN-CHANG LIN
  • Patent number: 10750099
    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.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: August 18, 2020
    Assignee: PRIMESENSOR TECHNOLOGY INC.
    Inventors: Wen-Han Yao, Chih-Huan Wu
  • Publication number: 20200244931
    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.
    Type: Application
    Filed: January 30, 2019
    Publication date: July 30, 2020
    Inventors: Wen-Han Yao, Chih-Huan Wu
  • Publication number: 20200228760
    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.
    Type: Application
    Filed: March 30, 2020
    Publication date: July 16, 2020
    Inventors: Wen-Cheng Yen, Wen-Han Yao
  • Patent number: 10645351
    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.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: May 5, 2020
    Assignee: PRIMESENSOR TECHNOLOGY INC.
    Inventors: Wen-Cheng Yen, Wen-Han Yao
  • Publication number: 20200128190
    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.
    Type: Application
    Filed: October 17, 2018
    Publication date: April 23, 2020
    Inventors: Wen-Han Yao, Chih-Huan Wu
  • Patent number: 10499019
    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.
    Type: Grant
    Filed: December 26, 2017
    Date of Patent: December 3, 2019
    Assignee: PRIMESENSOR TECHNOLOGY INC.
    Inventors: Hsueh-Te Chao, Wen-Han Yao