Patents by Inventor On Hing CHENG

On Hing CHENG 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: 20240070461
    Abstract: A method and system for activity classification. A pressure sensor receives input data resulting from physical activity of a subject performing an activity. The input data includes pressure data from at least one pressure sensor, and may include other data acquired through other types of sensors. A deep learning neural network is applied to the input data for identifying the activity. The neural network is trained with reference to training data from a training database. The training data may include empirical data from a database of previous data of corresponding activities, synthesized data prepared from the empirical data or simulated data. The training data may include data from physical activity of the subject being monitored by the system. Different aspects of the neural network may be trained with reference to the training data, and some aspects may be locked or opened depending on the application and the circumstances.
    Type: Application
    Filed: November 6, 2023
    Publication date: February 29, 2024
    Inventors: CHUN HING CHENG, JULIA BREANNE EVERETT, MICHAEL TODD PURDY, TRAVIS MICHAEL STEVENS, DAVID ALLAN VIBERG, DALE BARRY YEE
  • Patent number: 11853887
    Abstract: A method and system for activity classification. A pressure sensor receives input data resulting from physical activity of a subject performing an activity. The input data includes pressure data from at least one pressure sensor, and may include other data acquired through other types of sensors. A deep learning neural network is applied to the input data for identifying the activity. The neural network is trained with reference to training data from a training database. The training data may include empirical data from a database of previous data of corresponding activities, synthesized data prepared from the empirical data or simulated data. The training data may include data from physical activity of the subject being monitored by the system. Different aspects of the neural network may be trained with reference to the training data, and some aspects may be locked or opened depending on the application and the circumstances.
    Type: Grant
    Filed: November 9, 2022
    Date of Patent: December 26, 2023
    Assignee: Orpyx Medical Technologies Inc.
    Inventors: Chun Hing Cheng, Julia Breanne Everett, Michael Todd Purdy, Travis Michael Stevens, David Allan Viberg, Dale Barry Yee
  • Publication number: 20230085511
    Abstract: A method and system for heterogeneous event detection. Sensor data is obtained and divided into discrete data windows. Each data window is defined by and corresponds to a time period of the sensor data. A time-frequency representation over the time period is calculated for each data window. A filter mask is calculated based on the data window corresponding to the time-frequency representation. The filter mask is applied for reverting the time-frequency representation to a time representation, resulting in filtered data. Features, such as extrema or other inflection points, are identified in the filtered data. The features define events, and transforming the time-frequency representation back into the time domain emphasizes differences between more and less prominent frequencies, facilitating identification of heterogeneous events. The method and system may be applied to body movements of people or animals, automaton movement, audio signals, light intensity, or any suitable time-dependent variable.
    Type: Application
    Filed: October 17, 2022
    Publication date: March 16, 2023
    Applicant: ORPYX MEDICAL TECHNOLOGIES INC.
    Inventors: CHUN HING CHENG, MICHAEL TODD PURDY, TRAVIS MICHAEL STEVENS
  • Publication number: 20230060953
    Abstract: A method and system for activity classification. A pressure sensor receives input data resulting from physical activity of a subject performing an activity. The input data includes pressure data from at least one pressure sensor, and may include other data acquired through other types of sensors. A deep learning neural network is applied to the input data for identifying the activity. The neural network is trained with reference to training data from a training database. The training data may include empirical data from a database of previous data of corresponding activities, synthesized data prepared from the empirical data or simulated data. The training data may include data from physical activity of the subject being monitored by the system. Different aspects of the neural network may be trained with reference to the training data, and some aspects may be locked or opened depending on the application and the circumstances.
    Type: Application
    Filed: November 9, 2022
    Publication date: March 2, 2023
    Inventors: CHUN HING CHENG, JULIA BREANNE EVERETT, MICHAEL TODD PURDY, TRAVIS MICHAEL STEVENS, DAVID ALLAN VIBERG, DALE BARRY YEE
  • Patent number: 11526749
    Abstract: A method and system for activity classification. A pressure sensor receives input data resulting from physical activity of a subject performing an activity. The input data includes pressure data from at least one pressure sensor, and may include other data acquired through other types of sensors. A deep learning neural network is applied to the input data for identifying the activity. The neural network is trained with reference to training data from a training database. The training data may include empirical data from a database of previous data of corresponding activities, synthesized data prepared from the empirical data or simulated data. The training data may include data from physical activity of the subject being monitored by the system. Different aspects of the neural network may be trained with reference to the training data, and some aspects may be locked or opened depending on the application and the circumstances.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: December 13, 2022
    Assignee: Orpyx Medical Technologies Inc.
    Inventors: Chun Hing Cheng, Julia Breanne Everett, Michael Todd Purdy, Travis Michael Stevens, David Allan Viberg, Dale Barry Yee
  • Patent number: 11504030
    Abstract: A method and system for heterogeneous event detection. Sensor data is obtained and divided into discrete data windows. Each data window is defined by and corresponds to a time period of the sensor data. A time-frequency representation over the time period is calculated for each data window. A filter mask is calculated based on the data window corresponding to the time-frequency representation. The filter mask is applied for reverting the time-frequency representation to a time representation, resulting in filtered data. Features, such as extrema or other inflection points, are identified in the filtered data. The features define events, and transforming the time-frequency representation back into the time domain emphasizes differences between more and less prominent frequencies, facilitating identification of heterogeneous events. The method and system may be applied to body movements of people or animals, automaton movement, audio signals, light intensity, or any suitable time-dependent variable.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: November 22, 2022
    Assignee: ORPYX MEDICAL TECHNOLOGIES INC.
    Inventors: Chun Hing Cheng, Michael Todd Purdy, Travis Michael Stevens
  • Publication number: 20210378857
    Abstract: A flow stopper preventing the backflow of urine comprises a urinary catheter connector, a flow stopping valve, and a urinary bag connector. The flow stopping valve is a membrane material. A flow channel runs through the front and rear ends of the flow stopping valve. The flow channel is provided with a front-end inlet and a rear-end outlet. The front-end inlet is in communication with a valve port of the urinary catheter connector. The rear-end outlet is a flat slit. A channel of the urinary bag connector is provided with a front-end port and a rear-end port connected to a tube of a urinary bag. The flow stopping valve is arranged within the channel. Moreover, the rear-end outlet of the flow channel faces the rear-end port of the channel. The flow stopper can prevent the backflow of the urine and prevent a patient from being infected.
    Type: Application
    Filed: October 26, 2018
    Publication date: December 9, 2021
    Inventors: Chung Hing CHENG, Kam Tim YEUNG
  • Publication number: 20200218974
    Abstract: A method and system for activity classification. A pressure sensor receives input data resulting from physical activity of a subject performing an activity. The input data includes pressure data from at least one pressure sensor, and may include other data acquired through other types of sensors. A deep learning neural network is applied to the input data for identifying the activity. The neural network is trained with reference to training data from a training database. The training data may include empirical data from a database of previous data of corresponding activities, synthesized data prepared from the empirical data or simulated data. The training data may include data from physical activity of the subject being monitored by the system. Different aspects of the neural network may be trained with reference to the training data, and some aspects may be locked or opened depending on the application and the circumstances.
    Type: Application
    Filed: August 22, 2018
    Publication date: July 9, 2020
    Applicant: KINETYX SCIENCES INC.
    Inventors: CHUN HING CHENG, JULIA BREANNE EVERETT, MICHAEL TODD PURDY, TRAVIS MICHAEL STEVENS, DAVID ALLAN VIBERG, DALE BARRY YEE
  • Publication number: 20200178849
    Abstract: A method and system for heterogeneous event detection. Sensor data is obtained and divided into discrete data windows. Each data window is defined by and corresponds to a time period of the sensor data. A time-frequency representation over the time period is calculated for each data window. A filter mask is calculated based on the data window corresponding to the time-frequency representation. The filter mask is applied for reverting the time-frequency representation to a time representation, resulting in filtered data. Features, such as extrema or other inflection points, are identified in the filtered data. The features define events, and transforming the time-frequency representation back into the time domain emphasizes differences between more and less prominent frequencies, facilitating identification of heterogeneous events. The method and system may be applied to body movements of people or animals, automaton movement, audio signals, light intensity, or any suitable time-dependent variable.
    Type: Application
    Filed: June 28, 2018
    Publication date: June 11, 2020
    Applicant: ORPYX MEDICAL TECHNOLOGIES INC.
    Inventors: CHUN HING CHENG, MICHAEL TODD PURDY, TRAVIS MICHAEL STEVENS
  • Patent number: 9818187
    Abstract: An image processing device and methods for performing Rotationally Invariant S-transform (RIST) for an image are provided herein. An example method of determining the RIST magnitude at a pixel is provided herein. Further, an example method of determining RIST magnitudes and statistics in a region of interest is provided herein.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: November 14, 2017
    Assignee: Mayo Foundation for Medical Education and Research
    Inventors: Chun Hing Cheng, Joseph Ross Mitchell
  • Publication number: 20170103537
    Abstract: An image processing device and methods for performing an S-transform (ST) are provided herein. An example method of generating a compressed form of values of a one-dimensional ST for a time series and generating an approximate form of ST is provided herein. Additionally, an example method of determining local spectrum at a pixel is provided herein. Further, an example method of determining ST magnitudes and statistics in a region of interest (ROI) is provided herein.
    Type: Application
    Filed: September 26, 2016
    Publication date: April 13, 2017
    Inventors: Chun Hing Cheng, Joseph Ross Mitchell
  • Publication number: 20170084013
    Abstract: An image processing device and methods for performing Rotationally Invariant S-transform (RIST) for an image are provided herein. An example method of determining the RIST magnitude at a pixel is provided herein. Further, an example method of determining RIST magnitudes and statistics in a region of interest is provided herein.
    Type: Application
    Filed: September 26, 2016
    Publication date: March 23, 2017
    Inventors: Chun Hing Cheng, Joseph Ross Mitchell
  • Patent number: 9321730
    Abstract: The present invention relates methods of preparing quinoline derivative compounds, and administering such compounds in the treatment of solid and non-solid tumors, notably on liver cancer.
    Type: Grant
    Filed: August 21, 2007
    Date of Patent: April 26, 2016
    Assignee: The Hong Kong Polytechnic University
    Inventors: Albert Sun-chi Chan, Johnny Cheuk-on Tang, Kim-hung Lam, Chung-hin Chui, Stanton Hon-lung Kok, Sau Hing Chan, Filly Cheung, Roberto Gambari, Chor Hing Cheng
  • Publication number: 20150193671
    Abstract: An image processing device and methods for performing Rotationally Invariant Stransform (RIST) for an image are provided herein. An example method of determining the RIST magnitude at a pixel is provided herein. Further, an example method of determining RIST magnitudes and statistics in a region of interest is provided herein.
    Type: Application
    Filed: November 23, 2012
    Publication date: July 9, 2015
    Inventors: Chun Hing Cheng, Joseph Ross Mitchell
  • Publication number: 20150125080
    Abstract: An image processing device and methods for performing an S-transform (ST) are provided herein. An example method of generating a compressed form of values of a one-dimensional ST for a time series and generating an approximate form of ST is provided herein. Additionally, an example method of determining local spectrum at a pixel is provided herein. Further, an example method of determining ST magnitudes and statistics in a region of interest (ROI) is provided herein.
    Type: Application
    Filed: November 21, 2012
    Publication date: May 7, 2015
    Inventors: Chun Hing Cheng, Joseph Ross Mitchell
  • Patent number: 8911221
    Abstract: A blower assembly for a leaf blower has a case, a motor, an impeller driven by the motor, and an axial fan driven by the motor. The axial fan and the impeller are connected to opposite ends of the motor. The case has an air inlet, an air outlet and an air channel communicating the air inlet with the air outlet. The impeller is disposed inside the air channel to move air through the air channel from the air inlet to the air outlet. The axial fan is arranged to generate an axial flow of air towards the motor to cool the motor.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: December 16, 2014
    Assignee: Johnson Electric S.A.
    Inventors: On Hing Cheng, Jicheng Pan, Chun Lei Zhang
  • Patent number: 8344007
    Abstract: A cantharimide compound may include the backbone of formula (1). R1, R2, R3, and R4 may be independently selected from the group consisting of H, C(O)OR5, C(O)R6, C(O)NR7R8, NR9C(O)R10, N—R11R12, O—R13, S—R14, P(O)(OR15)(OR16), As(O)(OR17)(OR18), SO2R19, SO3R20, and B(OR21). X1 to X4 may be independently selected from the group consisting of nitrogen and carbon, such that X1 to X4 are not all hydrogen. Y1, Y2 and R5 to R21 may be independently selected from the group consisting of hydrogen, C1-12-alkyl, -aryl, heteroaryl, and a bioactive polymer.
    Type: Grant
    Filed: April 23, 2009
    Date of Patent: January 1, 2013
    Assignee: The Hong Kong Polytechnic University
    Inventors: Johnny Cheuk-on Tang, Albert Sun-chi Chan, Kim-hung Lam, Chung-hin Chui, Stanton Hon Lung Kok, Marcus Chun Wah Yuen, Sau Hing Chan, Chor Hing Cheng, Filly Cheung
  • Publication number: 20110223048
    Abstract: A blower assembly for a leaf blower has a case, a motor, an impeller driven by the motor, and an axial fan driven by the motor. The axial fan and the impeller are connected to opposite ends of the motor. The case has an air inlet, an air outlet and an air channel communicating the air inlet with the air outlet. The impeller is disposed inside the air channel to move air through the air channel from the air inlet to the air outlet. The axial fan is arranged to generate an axial flow of air towards the motor to cool the motor.
    Type: Application
    Filed: March 10, 2011
    Publication date: September 15, 2011
    Inventors: On Hing CHENG, Jicheng Pan, Chun Lei Zhang
  • Publication number: 20100273840
    Abstract: A cantharimide compound may include the backbone of formula (1). R1, R2, R3, and R4 may be independently selected from the group consisting of H, C(O)OR5, C(O)R6, C(O)NR7R8, NR9C(O)R10, N—R11R12, O—R13, S—R14, P(O)(OR15)(OR16), As(O)(OR17)(OR18), SO2R19, SO3R20, and B(OR21). X1 to X4 may be independently selected from the group consisting of nitrogen and carbon, such that X1 to X4 are not all hydrogen. Y1, Y2 and R5 to R21 may be independently selected from the group consisting of hydrogen, C1-12-alkyl, -aryl, heteroaryl, and a bioactive polymer.
    Type: Application
    Filed: April 23, 2009
    Publication date: October 28, 2010
    Inventors: Johnny Cheuk-on Tang, Albert Sun-chi Chan, Kim-hung Lam, Chung-hin Chui, Stanton Hon Lung Kok, Marcus Chun Wah Yuen, Sau Hing Chan, Chor Hing Cheng, Filly Cheung
  • Publication number: 20090054482
    Abstract: The present invention relates methods of preparing quinoline derivative compounds, and administering such compounds in the treatment of solid and non-solid tumors, notably on liver cancer.
    Type: Application
    Filed: August 21, 2007
    Publication date: February 26, 2009
    Applicant: The Hong Kong Polytechnic University
    Inventors: Albert Sun-chi Chan, Johnny Cheuk-on Tang, Kim-hung Lam, Chung-hin Chui, Stanton Hon-lung Kok, Sau Hing Chan, Filly Cheung, Roberto Gambari, Chor Hing Cheng