Patents by Inventor Tim Chan
Tim 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).
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Publication number: 20240312217Abstract: An object tracking system for use in traffic flow analytics and a traffic flow analytic method. The system comprises: an image processing module arranged to receiving a sequence of images capturing at least one object moving along a predetermined path in an area; an object detection module arranged to detect the at least one object including identifying a predetermined category of the detected object; and an object tracking module arranged to track the at least one object travelling from an entrance to an exit of the predetermined path based on coordinates of the object in the sequence of images being detected.Type: ApplicationFiled: March 16, 2023Publication date: September 19, 2024Inventors: Chun Hung CHENG, Kwong Tim CHAN, Cheuk Wai KUNG
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Publication number: 20240314526Abstract: The invention provides a drainage network monitoring system. The system comprises a sensing module for detecting one or more conditions at a location in the drainage network; a processing module for processing data received from the sensing module; a wireless communications module for communicating the processed data substantially in real-time to one or more wireless devices including a wireless notification device configured to issue notification information to users, wherein the wireless communications module utilizes a narrow bandwidth, low power wireless communications protocol to communicate processed data to the wireless notification device, and wherein the sensing module has a standalone power supply.Type: ApplicationFiled: March 15, 2023Publication date: September 19, 2024Inventors: Chun Hung CHENG, Ho LAM, Shiu Kee LUK, Kwong Tim CHAN, Hoi Shun TAM
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Publication number: 20240254188Abstract: Provided herein are chimeric antigen receptors (CARs) for cancer therapy, and more particularly, CARs containing a scFv from a CD33 monoclonal antibody. Provided are immune effector cells containing such CARs, and methods of treating proliferative disorders such as acute myeloid leukemia (AML), and relapsed or refractory AML.Type: ApplicationFiled: September 6, 2023Publication date: August 1, 2024Applicant: PRECIGEN, INC.Inventors: Rutul SHAH, Tim CHAN, Peter EMTAGE, Ramya YARLAGADDA
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Patent number: 12025770Abstract: A system (100) for monitoring stability of trees (10) in an area includes a server (101), one or more sensor modules (102, 202) being attached to each of the trees (10) in a network of trees, configured for obtaining tilt angle data pertaining to inclination of at least a portion of the tree (10), and relaying the tilt angle data to the server (101), a weather observing device (103, 203) connected to the server (101), for obtaining localized environmental variables representing a local weather condition in the area, and a monitoring platform (20) connected with the server (101), configured for storing and processing the data. The system is configured for monitoring, based on the data and the environmental variables, the tilt angle data of each of the trees (10), and identifying one or more abnormalities of one or more of the trees (10), and indicating through the monitoring platform (20) the one or more abnormalities.Type: GrantFiled: March 31, 2022Date of Patent: July 2, 2024Assignee: Logistics and Supply Chain MultiTech R&D Centre LimitedInventors: Kwong Yeung Simon Wong, Ho Lam, Wing Pong Ngai, Shiu Kee Luk, Chun Hung Cheng, Kwong Tim Chan
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Patent number: 11787848Abstract: Provided herein are chimeric antigen receptors (CARs) for cancer therapy, and more particularly, CARs containing a scFv from a CD33 monoclonal antibody. Provided are immune effector cells containing such CARs, and methods of treating proliferative disorders such as acute myeloid leukemia (AML), and relapsed or refractory AML.Type: GrantFiled: June 7, 2017Date of Patent: October 17, 2023Assignee: PRECIGEN, INC.Inventors: Rutul Shah, Tim Chan, Peter Emtage, Ramya Yarlagadda
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Publication number: 20230314656Abstract: A system (100) for monitoring stability of trees (10) in an area includes a server (101), one or more sensor modules (102, 202) being attached to each of the trees (10) in a network of trees, configured for obtaining tilt angle data pertaining to inclination of at least a portion of the tree (10), and relaying the tilt angle data to the server (101), a weather observing device (103, 203) connected to the server (101), for obtaining localized environmental variables representing a local weather condition in the area, and a monitoring platform (20) connected with the server (101), configured for storing and processing the data. The system is configured for monitoring, based on the data and the environmental variables, the tilt angle data of each of the trees (10), and identifying one or more abnormalities of one or more of the trees (10), and indicating through the monitoring platform (20) the one or more abnormalities.Type: ApplicationFiled: March 31, 2022Publication date: October 5, 2023Inventors: Kwong Yeung Simon Wong, Ho Lam, Wing Pong Ngai, Shiu Kee Luk, Chun Hung Cheng, Kwong Tim Chan
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Publication number: 20220313861Abstract: A method for reducing malodour includes the step of providing a solid composition including one or more cucurbiturils and derivatives and/or analogues thereof suspended in and/or bound by a thermoplastic and/or a thermosetting polymer medium, wherein the source of the malodour is external.Type: ApplicationFiled: August 5, 2020Publication date: October 6, 2022Applicant: AQDOT LIMITEDInventors: Andrew HOWE, Benjamin Thomas CHEESMAN, Tim Chan SEEM, Michael PEDDER, Nicolas ESSELIN, Roger COULSTON, Johannes Gerardus DE ROOIJ
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Patent number: 11410513Abstract: A video-based security system for providing video security to cargo transport vehicle. The security system includes a camera support configured at the exterior of a cargo storage area; a camera system attached to the camera support for covering a top plane, front plane, left plane, right plane, and back plane of a cargo area; and a main unit connecting to the camera system for logging incident records.Type: GrantFiled: March 19, 2020Date of Patent: August 9, 2022Assignee: Logistics and Supply Chain Multitech R&D Centre LimitedInventors: Kwong Yeung Simon Wong, To Bun Ng, Kwong Tim Chan
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Patent number: 11245391Abstract: Described herein are multiple designs for an improved analog switch for use in transmitting high voltage signals without using high voltage power supplies for the switch. The analog switches are able to pass and block input signals in the approximate range of ?100 V to +100 V. The use of translinear loops and a bootstrap configuration results in a constant on-resistance of the symmetrical switches and matches the conductance of each analog switch to the transconductance of an NMOS transistor, which can be easily stabilized with a constant gm biasing scheme. In certain embodiments, a shunt termination (T-switch) configuration is used for better off-isolation, and each of the symmetrical switches has its own translinear loop and thus flexibility of on-resistance and termination voltage.Type: GrantFiled: July 20, 2020Date of Patent: February 8, 2022Assignee: MICROCHIP TECHNOLOGY INC.Inventors: Isaac Ko, Ka Wai Ho, Wan Tim Chan, Jimes Lei
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Publication number: 20210367500Abstract: Disclosed herein is a method. An output voltage level is sensed. Determining if a power source delivers power to a system. If the output voltage is higher than a designed voltage threshold (Vh), then the power source will stop delivery of power to a circuit. If the output voltage is lower than another voltage threshold (Vl), the power source transfers power to the system until the output voltage reaches the designed voltage threshold (Vh).Type: ApplicationFiled: May 19, 2020Publication date: November 25, 2021Inventors: Ka Wai Ho, Wan Tim Chan, Ngai Wa Wong, Chiu Sing Celement Tse
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Publication number: 20210295664Abstract: A video-based security system for providing video security to cargo transport vehicle. The security system includes a camera support configured at the exterior of a cargo storage area; a camera system attached to the camera support for covering a top plane, front plane, left plane, right plane, and back plane of a cargo area; and a main unit connecting to the camera system for logging incident records.Type: ApplicationFiled: March 19, 2020Publication date: September 23, 2021Inventors: Kwong Yeung Simon Wong, To Bun Ng, Kwong Tim Chan
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Publication number: 20210175796Abstract: Disclosed herein is a fast voltage stabilizer wherein an actual voltage across a targeted electronic element is sensed. The actual voltage is compared with a reference voltage. A control signal is generated, wherein in response to the control signal, an external current path is provided to maintain current flow and stabilize the actual voltage through charging or discharging an input capacitor and a supply filtering capacitor. Under an arbitrary supply voltage variation, a fast dynamic response to regulate the voltage across the targeted electronic element is provided no matter what the operating mode of the entire electrical circuit is, including but not limited by constant current mode, constant output resistant mode and constant power mode.Type: ApplicationFiled: December 6, 2019Publication date: June 10, 2021Inventors: Ka Wai Ho, Chung Pui Tung, Po Wa Chow, Wing To Fan, Wan Tim Chan, Ke Wei Wang, Shu Hung Henry Chung, Chiu Sing Celement Tse
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Publication number: 20210051287Abstract: Imaging circuitry may include circuits for implementing current or voltage mode feature extraction in the analog domain. The imaging circuitry may include pixels configured to generate pixel values. The pixel values may then be weighted using adjustable weighting circuits to generate corresponding weighted pixel values. The adjustable weighting circuits may be selectively coupled to the floating diffusion node in each pixel. The weighted pixels values may then be combined to obtain an output neuron voltage for at least one layer in a neural network. Performing feature extraction in the analog domain for each layer of results in the neural network saves power and area by avoiding the need to move data around to conventional digital memories.Type: ApplicationFiled: March 24, 2020Publication date: February 18, 2021Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLCInventors: Roger PANICACCI, Tim CHAN
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Publication number: 20200350901Abstract: Described herein are multiple designs for an improved analog switch for use in transmitting high voltage signals without using high voltage power supplies for the switch. The analog switches are able to pass and block input signals in the approximate range of ?100 V to +100 V. The use of translinear loops and a bootstrap configuration results in a constant on-resistance of the symmetrical switches and matches the conductance of each analog switch to the transconductance of an NMOS transistor, which can be easily stabilized with a constant gm biasing scheme. In certain embodiments, a shunt termination (T-switch) configuration is used for better off-isolation, and each of the symmetrical switches has its own translinear loop and thus flexibility of on-resistance and termination voltage.Type: ApplicationFiled: July 20, 2020Publication date: November 5, 2020Inventors: Isaac Ko, KA WAI HO, WAN TIM CHAN, JIMES LEI
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Patent number: 10756719Abstract: Described herein are multiple designs for an improved analog switch for use in transmitting high voltage signals without using high voltage power supplies for the switch. The analog switches are able to pass and block input signals in the approximate range of ?100V to +100V. The use of translinear loops and a bootstrap configuration results in a constant on-resistance of the symmetrical switches and matches the conductance of each analog switch to the transconductance of an NMOS transistor, which can be easily stabilized with a constant gm biasing scheme. In certain embodiments, a shunt termination (T-switch) configuration is used for better off-isolation, and each of the symmetrical switches has its own translinear loop and thus flexibility of on-resistance and termination voltage.Type: GrantFiled: October 21, 2015Date of Patent: August 25, 2020Assignee: MICROCHIP TECHNOLOGY INC.Inventors: Isaac Ko, Ka Wai Ho, Wan Tim Chan, Jimes Lei
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Patent number: 10637358Abstract: A current control circuit having a current regulation element, a first control circuit, and a second control circuit. The first control circuit is arranged to regulate, based on a reference current, a current flowing with respect to the current regulation element. The second control circuit is arranged to regulate, based on a reference voltage, a voltage across the current regulation element.Type: GrantFiled: December 18, 2017Date of Patent: April 28, 2020Assignee: Mosway Semiconductor LimitedInventors: Ka Wai Ho, Chung Pui Tung, Po Wa Chow, Wing To Fan, Wan Tim Chan, Shu Hung Henry Chung, Chiu Sing Tse
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Patent number: 10469043Abstract: An ultrasound probe buffer is provided. The ultrasound probe buffer may include a high impedance amplifier having a common-source core stage with series-series local feedback. The high impedance amplifier may include a first MOSFET and a second MOSFET, wherein a source terminal of the first MOSFET is coupled to a source terminal of the second MOSFET.Type: GrantFiled: March 17, 2017Date of Patent: November 5, 2019Assignee: Microchip Technology IncorporatedInventors: Isaac Ko, Ka Wai Ho, Wan Tim Chan
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Patent number: 10468869Abstract: An analog transmit/receive switch and voltage detection circuit that do not require depletion mode devices are provided. The switch may be configured to operate in a receive mode and a protection mode. The voltage detection circuit may be coupled to the switch and may be configured to measure a potential difference between two terminals of the switch. The switch and the voltage detection circuit may not include any depletion mode devices.Type: GrantFiled: March 17, 2017Date of Patent: November 5, 2019Assignee: Microchip Technology IncorporatedInventors: Isaac Ko, Ka Wai Ho, Wan Tim Chan
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Publication number: 20190190389Abstract: A current control circuit having a current regulation element, a first control circuit, and a second control circuit. The first control circuit is arranged to regulate, based on a reference current, a current flowing with respect to the current regulation element. The second control circuit is arranged to regulate, based on a reference voltage, a voltage across the current regulation element.Type: ApplicationFiled: December 18, 2017Publication date: June 20, 2019Inventors: Ka Wai HO, Chung Pui TUNG, Po Wa CHOW, Wing To FAN, Wan Tim CHAN, Shu Hung Henry CHUNG, Chiu Sing TSE
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Patent number: 10171072Abstract: An improved analog switch for use in an ultrasound elastography probe is disclosed. The improved analog switch results in less heat dissipation compared to prior art analog switches.Type: GrantFiled: September 14, 2016Date of Patent: January 1, 2019Assignee: MICROCHIP TECHNOLOGY INC.Inventors: Isaac Ko, Ka Wai Ho, Wan Tim Chan