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).
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Publication number: 20240070461Abstract: 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: ApplicationFiled: November 6, 2023Publication date: February 29, 2024Inventors: CHUN HING CHENG, JULIA BREANNE EVERETT, MICHAEL TODD PURDY, TRAVIS MICHAEL STEVENS, DAVID ALLAN VIBERG, DALE BARRY YEE
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Patent number: 11853887Abstract: 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: GrantFiled: November 9, 2022Date of Patent: December 26, 2023Assignee: Orpyx Medical Technologies Inc.Inventors: Chun Hing Cheng, Julia Breanne Everett, Michael Todd Purdy, Travis Michael Stevens, David Allan Viberg, Dale Barry Yee
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Publication number: 20230085511Abstract: 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: ApplicationFiled: October 17, 2022Publication date: March 16, 2023Applicant: ORPYX MEDICAL TECHNOLOGIES INC.Inventors: CHUN HING CHENG, MICHAEL TODD PURDY, TRAVIS MICHAEL STEVENS
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Publication number: 20230060953Abstract: 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: ApplicationFiled: November 9, 2022Publication date: March 2, 2023Inventors: CHUN HING CHENG, JULIA BREANNE EVERETT, MICHAEL TODD PURDY, TRAVIS MICHAEL STEVENS, DAVID ALLAN VIBERG, DALE BARRY YEE
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Patent number: 11526749Abstract: 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: GrantFiled: August 22, 2018Date of Patent: December 13, 2022Assignee: Orpyx Medical Technologies Inc.Inventors: Chun Hing Cheng, Julia Breanne Everett, Michael Todd Purdy, Travis Michael Stevens, David Allan Viberg, Dale Barry Yee
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Patent number: 11504030Abstract: 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: GrantFiled: June 28, 2018Date of Patent: November 22, 2022Assignee: ORPYX MEDICAL TECHNOLOGIES INC.Inventors: Chun Hing Cheng, Michael Todd Purdy, Travis Michael Stevens
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Publication number: 20210378857Abstract: 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: ApplicationFiled: October 26, 2018Publication date: December 9, 2021Inventors: Chung Hing CHENG, Kam Tim YEUNG
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Publication number: 20200218974Abstract: 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: ApplicationFiled: August 22, 2018Publication date: July 9, 2020Applicant: KINETYX SCIENCES INC.Inventors: CHUN HING CHENG, JULIA BREANNE EVERETT, MICHAEL TODD PURDY, TRAVIS MICHAEL STEVENS, DAVID ALLAN VIBERG, DALE BARRY YEE
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Publication number: 20200178849Abstract: 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: ApplicationFiled: June 28, 2018Publication date: June 11, 2020Applicant: ORPYX MEDICAL TECHNOLOGIES INC.Inventors: CHUN HING CHENG, MICHAEL TODD PURDY, TRAVIS MICHAEL STEVENS
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Patent number: 9818187Abstract: 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: GrantFiled: September 26, 2016Date of Patent: November 14, 2017Assignee: Mayo Foundation for Medical Education and ResearchInventors: Chun Hing Cheng, Joseph Ross Mitchell
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Publication number: 20170103537Abstract: 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: ApplicationFiled: September 26, 2016Publication date: April 13, 2017Inventors: Chun Hing Cheng, Joseph Ross Mitchell
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Publication number: 20170084013Abstract: 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: ApplicationFiled: September 26, 2016Publication date: March 23, 2017Inventors: Chun Hing Cheng, Joseph Ross Mitchell
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Patent number: 9321730Abstract: 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: GrantFiled: August 21, 2007Date of Patent: April 26, 2016Assignee: The Hong Kong Polytechnic UniversityInventors: 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
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Publication number: 20150193671Abstract: 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: ApplicationFiled: November 23, 2012Publication date: July 9, 2015Inventors: Chun Hing Cheng, Joseph Ross Mitchell
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Publication number: 20150125080Abstract: 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: ApplicationFiled: November 21, 2012Publication date: May 7, 2015Inventors: Chun Hing Cheng, Joseph Ross Mitchell
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Patent number: 8911221Abstract: 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: GrantFiled: March 10, 2011Date of Patent: December 16, 2014Assignee: Johnson Electric S.A.Inventors: On Hing Cheng, Jicheng Pan, Chun Lei Zhang
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Patent number: 8344007Abstract: 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: GrantFiled: April 23, 2009Date of Patent: January 1, 2013Assignee: The Hong Kong Polytechnic UniversityInventors: 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
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Publication number: 20110223048Abstract: 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: ApplicationFiled: March 10, 2011Publication date: September 15, 2011Inventors: On Hing CHENG, Jicheng Pan, Chun Lei Zhang
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Publication number: 20100273840Abstract: 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: ApplicationFiled: April 23, 2009Publication date: October 28, 2010Inventors: 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
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Publication number: 20090054482Abstract: 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: ApplicationFiled: August 21, 2007Publication date: February 26, 2009Applicant: The Hong Kong Polytechnic UniversityInventors: 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