Patents by Inventor Wei Chung Wang

Wei Chung Wang 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: 11049249
    Abstract: A method, an apparatus and a system for cell detection are provided. In the apparatus, a hyperspectrum module is used to capture information across electromagnetic spectrums from an image, a stereo camera module is used to capture three-dimensional image information, and the hyperspectrum module and the stereo camera module form a trinocular micro spectrometer. A microscopic optical module is provided for the two modules to form hyperspectrum and three-dimensional image information from a cell and its split cells via a lens. In the method, a series of continuous images are obtained within a time period. An observation image array with a plurality of observation image zones are provided to retrieve coordinates of a plurality of feature points at different times. Finally, a holistic cellular activity can be obtained by analyzing continuous hyperspectrum and 3D image information from the images over time.
    Type: Grant
    Filed: November 14, 2019
    Date of Patent: June 29, 2021
    Assignees: PROVIDENCE UNIVERSITY, NATIONAL TSING HUA UNIVERSITY
    Inventors: Wei-Chung Wang, Yung-Hsiang Chen, Chuan-Yi Tang, Ching-Huan Kuo
  • Patent number: 11009882
    Abstract: The disclosure is related to a method and a system for obstacle detection adapted to a self-guiding machine. The method is performed in the system including a controller for driving the system, a light emitter, a light sensor, an image processor and a central processor. The light emitter and the light sensor are set apart at a distance. When the light emitter emits an indicator light being projected onto a path the self-guiding machine travels toward, the light sensor senses the indicator light. An image containing the indicator light is generated. After analyzing the image, at least one feature of the indicator light being sensed can be obtained and used to obtain a spatial relationship between the self-guiding machine and an obstacle. The spatial relationship allows the system to determine if the self-guiding machine will collide with a wall or fall from a cliff.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: May 18, 2021
    Assignee: PIXART IMAGING INC.
    Inventors: Kai-Shun Chen, Wei-Chung Wang
  • Patent number: 10955308
    Abstract: A pressure measuring method, applied to a pressure measuring apparatus, comprising: measuring a first pressure sensing value when the pressure measuring apparatus operates at a first scan frequency and receives a first pressure; and measuring a second pressure sensing value when the pressure measuring apparatus operates a second scan frequency and receives the first pressure. The first pressure sensing value and the second pressure sensing value are different, and a change between the first pressure sensing value and the second pressure sensing value is according to a change between the first scan frequency and the second scan frequency. The first scan frequency and the second scan frequency are different. The pressure measuring method can further comprise a calibrating mechanism to compensate the sensed pressure. By this way, the pressure sensing value can be calibrated, to solve the issue that the pressure sensing values are affected by scan frequencies.
    Type: Grant
    Filed: January 20, 2020
    Date of Patent: March 23, 2021
    Assignee: Pix Art Imaging Inc.
    Inventors: Yu-Han Chen, Chih-Wei Huang, Chi-Chieh Liao, Wei-Chung Wang
  • Patent number: 10876873
    Abstract: An optical flow sensing method includes: using an image sensor to capture images; using a directional-invariant filter device upon at least one first block of the first image to process values of pixels of the at least one first block of the first image, to generate a first filtered block image; using the first directional-invariant filter device upon at least one first block of the second image to process values of pixels of the at least one first block of the second image, to generate a second filtered block image; comparing the filtered block images to calculate a correlation result; and estimating a motion vector according to a plurality of correlation results.
    Type: Grant
    Filed: February 11, 2020
    Date of Patent: December 29, 2020
    Assignee: PixArt Imaging Inc.
    Inventors: Hsin-Chia Chen, Sen-Huang Huang, Wei-Chung Wang, Chao-Chien Huang, Ting-Yang Chang, Chun-Wei Chen
  • Publication number: 20200357506
    Abstract: Provided are a medical image analyzing system and a method thereof, which mainly crop a plurality of image patches from a processed image including a segmentation label corresponding to a location of an organ, train a deep learning model with the image patches to obtain prediction values, and plot a receiver operating characteristic curve to determine a threshold which determines whether the image patches are cancerous, thereby effectively improving the detection rate of cancer.
    Type: Application
    Filed: May 7, 2020
    Publication date: November 12, 2020
    Inventors: Wei-Chih Liao, Wei-Chung Wang, Kao-Lang Liu, Po-Ting Chen, Ting-Hui Wu, Holger Roth
  • Publication number: 20200241550
    Abstract: There is provided a cleaning robot including a first light source module and a second light source module respectively project a first light section and a second light section, which are vertical light sections, in front of a moving direction, wherein the first light section and the second light section cross with each other at a predetermined distance in front of the cleaning robot so as to eliminate a detection dead zone between the first light source module and the second light source module in front of the cleaning robot to avoid collision with an object during operation.
    Type: Application
    Filed: January 28, 2019
    Publication date: July 30, 2020
    Inventors: Shih-Chin LIN, Wei-Chung WANG, Guo-Zhen WANG
  • Publication number: 20200182672
    Abstract: An optical flow sensing method includes: using an image sensor to capture images; using a directional-invariant filter device upon at least one first block of the first image to process values of pixels of the at least one first block of the first image, to generate a first filtered block image; using the first directional-invariant filter device upon at least one first block of the second image to process values of pixels of the at least one first block of the second image, to generate a second filtered block image; comparing the filtered block images to calculate a correlation result; and estimating a motion vector according to a plurality of correlation results.
    Type: Application
    Filed: February 11, 2020
    Publication date: June 11, 2020
    Inventors: Hsin-Chia Chen, Sen-Huang Huang, Wei-Chung Wang, Chao-Chien Huang, Ting-Yang Chang, Chun-Wei Chen
  • Publication number: 20200167924
    Abstract: A method, an apparatus and a system for cell detection are provided. In the apparatus, a hyperspectrum module is used to capture information across electromagnetic spectrums from an image, a stereo camera module is used to capture three-dimensional image information, and the hyperspectrum module and the stereo camera module form a trinocular micro spectrometer. A microscopic optical module is provided for the two modules to form hyperspectrum and three-dimensional image information from a cell and its split cells via a lens. In the method, a series of continuous images are obtained within a time period. An observation image array with a plurality of observation image zones are provided to retrieve coordinates of a plurality of feature points at different times. Finally, a holistic cellular activity can be obtained by analyzing continuous hyperspectrum and 3D image information from the images over time.
    Type: Application
    Filed: November 14, 2019
    Publication date: May 28, 2020
    Inventors: WEI-CHUNG WANG, YUNG-HSIANG CHEN, CHUAN-YI TANG, CHING-HUAN KUO
  • Publication number: 20200149988
    Abstract: A pressure measuring method, applied to a pressure measuring apparatus, comprising: measuring a first pressure sensing value when the pressure measuring apparatus operates at a first scan frequency and receives a first pressure; and measuring a second pressure sensing value when the pressure measuring apparatus operates a second scan frequency and receives the first pressure. The first pressure sensing value and the second pressure sensing value are different, and a change between the first pressure sensing value and the second pressure sensing value is according to a change between the first scan frequency and the second scan frequency. The first scan frequency and the second scan frequency are different. The pressure measuring method can further comprise a calibrating mechanism to compensate the sensed pressure. By this way, the pressure sensing value can be calibrated, to solve the issue that the pressure sensing values are affected by scan frequencies.
    Type: Application
    Filed: January 20, 2020
    Publication date: May 14, 2020
    Inventors: Yu-Han Chen, Chih-Wei Huang, Chi-Chieh Liao, Wei-Chung Wang
  • Publication number: 20200117228
    Abstract: A joystick has a related control method to provide displayed object control function. The joystick includes a body, an image sensor and a processor. The body has a deformable bottom surface whereon a pattern is disposed. The image sensor is disposed under the body and adapted to capture a frame about the pattern. The processor is electrically connected with the image sensor and adapted to generate a displayed object control signal according to pattern variation within the frame.
    Type: Application
    Filed: December 9, 2019
    Publication date: April 16, 2020
    Inventors: Wei-Chung Wang, Hsin-Chia Chen, Hui-Hsuan Chen, Chao-Chien Huang, Chu-Hung Nien
  • Patent number: 10612951
    Abstract: An optical flow sensing method includes: using an image sensor to capture images; using a directional-invariant filter device upon at least one first block of the first image to process values of pixels of the at least one first block of the first image, to generate a first filtered block image; using the first directional-invariant filter device upon at least one first block of the second image to process values of pixels of the at least one first block of the second image, to generate a second filtered block image; comparing the filtered block images to calculate a correlation result; and estimating a motion vector according to a plurality of correlation results.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: April 7, 2020
    Assignee: PixArt Imaging Inc.
    Inventors: Hsin-Chia Chen, Sen-Huang Huang, Wei-Chung Wang, Chao-Chien Huang, Ting-Yang Chang, Chun-Wei Chen
  • Patent number: 10598786
    Abstract: An object state determining apparatus comprising: a first light source, configured to generate first light in a first direction, wherein first reflected light is generated while the first light is emitted to an object; a second light source, configured to generate second light in a second direction, wherein second reflected light is generated while the second light is emitted to the object; at least one light sensor, configured to sense a first light amount of the first reflected light and a second light amount of the second reflected light; and a determining unit, configured to determine a state of the object based on the first light amount and the second light amount. The object state determining apparatus can be easily fixed to an object to be detected and can efficiently detect the state of the object.
    Type: Grant
    Filed: June 25, 2017
    Date of Patent: March 24, 2020
    Assignee: PixArt Imaging Inc.
    Inventors: Wei-Chung Wang, Hui-Hsuan Chen
  • Patent number: 10578507
    Abstract: A pressure measuring method, applied to a pressure measuring apparatus, comprising: measuring a first pressure sensing value of the pressure measuring apparatus, which corresponds to a first pressure in a test mode; measuring a second pressure sensing value of the pressure measuring apparatus, which corresponds to a second pressure in the test mode; generating a first corresponding function according to the first pressure, the second pressure, the first pressure sensing value and the second pressure sensing value; sensing a third pressure sensing value via the pressure measuring apparatus in a normal mode; and generating a third pressure according to the third pressure sensing value via the first corresponding function; wherein the pressure measuring apparatus operates at a first scan frequency. By this way, the pressure sensing value can be calibrated, to solve the issue that the pressure sensing values are affected by scan frequencies.
    Type: Grant
    Filed: April 9, 2017
    Date of Patent: March 3, 2020
    Assignee: PixArt Imaging Inc.
    Inventors: Yu-Han Chen, Chih-Wei Huang, Chi-Chieh Liao, Wei-Chung Wang
  • Patent number: 10545528
    Abstract: A joystick has a related control method to provide displayed object control function. The joystick includes a body, an image sensor and a processor. The body has a deformable bottom surface whereon a pattern is disposed. The image sensor is disposed under the body and adapted to capture a plurality of frames about the pattern. The processor is electrically connected with the image sensor and adapted to generate a displayed object control signal according to pattern variation within the plurality of frames.
    Type: Grant
    Filed: June 18, 2019
    Date of Patent: January 28, 2020
    Assignee: PixArt Imaging Inc.
    Inventors: Wei-Chung Wang, Hsin-Chia Chen, Hui-Hsuan Chen, Chao-Chien Huang, Chu-Hung Nien
  • Publication number: 20190302828
    Abstract: A joystick has a related control method to provide displayed object control function. The joystick includes a body, an image sensor and a processor. The body has a deformable bottom surface whereon a pattern is disposed. The image sensor is disposed under the body and adapted to capture a plurality of frames about the pattern. The processor is electrically connected with the image sensor and adapted to generate a displayed object control signal according to pattern variation within the plurality of frames.
    Type: Application
    Filed: June 18, 2019
    Publication date: October 3, 2019
    Inventors: Wei-Chung Wang, Hsin-Chia Chen, Hui-Hsuan Chen, Chao-Chien Huang, Chu-Hung Nien
  • Patent number: 10372155
    Abstract: A joystick has a related control method to provide displayed object control function. The joystick includes a body, an image sensor and a processor. The body has a deformable bottom surface whereon a pattern is disposed. The image sensor is disposed under the body and adapted to capture a plurality of frames about the pattern. The processor is electrically connected with the image sensor and adapted to generate a displayed object control signal according to pattern variation within the plurality of frames.
    Type: Grant
    Filed: August 20, 2017
    Date of Patent: August 6, 2019
    Assignee: PixArt Imaging Inc.
    Inventors: Wei-Chung Wang, Hsin-Chia Chen, Hui-Hsuan Chen, Chao-Chien Huang, Chu-Hung Nien
  • Publication number: 20190220025
    Abstract: The disclosure is related to a method and a system for obstacle detection adapted to a self-guiding machine. The method is performed in the system including a controller for driving the system, a light emitter, a light sensor, an image processor and a central processor. The light emitter and the light sensor are set apart at a distance. When the light emitter emits an indicator light being projected onto a path the self-guiding machine travels toward, the light sensor senses the indicator light. An image containing the indicator light is generated. After analyzing the image, at least one feature of the indicator light being sensed can be obtained and used to obtain a spatial relationship between the self-guiding machine and an obstacle. The spatial relationship allows the system to determine if the self-guiding machine will collide with a wall or fall from a cliff.
    Type: Application
    Filed: January 12, 2018
    Publication date: July 18, 2019
    Inventors: KAI-SHUN CHEN, WEI-CHUNG WANG
  • Publication number: 20190056759
    Abstract: A joystick has a related control method to provide displayed object control function. The joystick includes a body, an image sensor and a processor. The body has a deformable bottom surface whereon a pattern is disposed. The image sensor is disposed under the body and adapted to capture a plurality of frames about the pattern. The processor is electrically connected with the image sensor and adapted to generate a displayed object control signal according to pattern variation within the plurality of frames.
    Type: Application
    Filed: August 20, 2017
    Publication date: February 21, 2019
    Inventors: Wei-Chung Wang, Hsin-Chia Chen, Hui-Hsuan Chen, Chao-Chien Huang, Chu-Hung Nien
  • Publication number: 20180372871
    Abstract: An object state determining apparatus comprising: a first light source, configured to generate first light in a first direction, wherein first reflected light is generated while the first light is emitted to an object; a second light source, configured to generate second light in a second direction, wherein second reflected light is generated while the second light is emitted to the object; at least one light sensor, configured to sense a first light amount of the first reflected light and a second light amount of the second reflected light; and a determining unit, configured to determine a state of the object based on the first light amount and the second light amount. The object state determining apparatus can be easily fixed to an object to be detected and can efficiently detect the state of the object.
    Type: Application
    Filed: June 25, 2017
    Publication date: December 27, 2018
    Inventors: Wei-Chung Wang, Hui-Hsuan Chen
  • Patent number: D923625
    Type: Grant
    Filed: November 20, 2019
    Date of Patent: June 29, 2021
    Assignee: Amazon Technologies, Inc.
    Inventors: James Siminoff, Mark D. Siminoff, Wen-Yo Lu, Christopher Loew, Jia Li, Wei-Chung Wang, Gregory Berlin, Andrew Louis Russell, Curtis Rowe