Patents by Inventor Richard Lum

Richard Lum 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: 20230231070
    Abstract: An isolation system and isolation device are disclosed. An illustrative isolation device is disclosed to include a transmitter circuit to generate a first current in accordance with a first signal, a first elongated conducting element to generate a magnetic field when the first current flows through the first elongated conducting element, a second elongated conducting element adjacent to the first elongated conducting element so as to receive the magnetic field. The second elongated conducting element is configured to generate an induced current when the magnetic field is received. The receiver circuit is configured to receive the induced current as an input, and configured to generate a reproduced first signal as an output of the receiver circuit.
    Type: Application
    Filed: March 29, 2023
    Publication date: July 20, 2023
    Inventors: Kok Keong Richard LUM, Hong Sia TAN
  • Patent number: 11621364
    Abstract: An isolation system and isolation device are disclosed. An illustrative isolation device is disclosed to include a transmitter circuit, a detector circuit, a first wire bond, and a second wire bond. The detector circuit is configured to generate a first current in accordance with a first signal. The first wire bond is configured to receive the first current from the transmitter circuit to generate a magnetic flux. The second wire bond is configured to receive the magnetic flux. An induced current in the second wire bond is then detected in the detector circuit. The detector circuit is configured to generate a reproduced first signal, as an output of the detector circuit.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: April 4, 2023
    Assignee: MPICS INNOVATIONS PTE. LTD
    Inventors: Kok Keong Richard Lum, Hong Sia Tan
  • Publication number: 20220375327
    Abstract: Devices and methods for detecting a disinfecting state are described. An example of a sensor device is disclosed to include: a housing; a radiation sensitive material disposed on one or more portions of an external surface of the housing; a sensor configured to measure intensity information associated with ultraviolet (UV) radiation of a first frequency band; a controller configured to record the intensity information, temporal information associated with measuring the intensity information, or both; and a transceiver device configured to transmit and receive radio frequency (RF) signals.
    Type: Application
    Filed: June 14, 2022
    Publication date: November 24, 2022
    Inventors: Kok Keong Richard LUM, Hong Sia TAN
  • Publication number: 20220370670
    Abstract: Disinfecting systems, methods, and devices are described. An example of a disinfecting system is disclosed to include: a radiation source configured to emit a disinfecting radiation; a source wireless communication device coupled to the radiation source; a plurality of receiver wireless communication devices; and a plurality of disinfecting radiation sensors configured to detect the disinfecting radiation, wherein each of the plurality of disinfecting radiation sensors is configured to record an intensity level information of the disinfecting radiation and configured to transmit the intensity level information through one of the plurality of receiver wireless communication devices to a center controller.
    Type: Application
    Filed: May 24, 2021
    Publication date: November 24, 2022
    Inventors: Kok Keong Richard LUM, Hong Sia TAN
  • Publication number: 20220375325
    Abstract: Devices and methods for detecting a disinfecting state are described. An example of a sensor device is disclosed to include: a housing; a radiation sensitive material disposed on one or more portions of an external surface of the housing; a sensor configured to measure intensity information associated with ultraviolet (UV) radiation of a first frequency band; a controller configured to record the intensity information, temporal information associated with measuring the intensity information, or both; and a transceiver device configured to transmit and receive radio frequency (RF) signals.
    Type: Application
    Filed: July 14, 2021
    Publication date: November 24, 2022
    Inventors: Kok Keong Richard LUM, Hong Sia TAN
  • Publication number: 20220375324
    Abstract: Devices and methods for detecting a disinfecting state are described. An example of a sensor device is disclosed to include: a housing; a radiation sensitive material disposed on one or more portions of an external surface of the housing; a sensor configured to measure intensity information associated with ultraviolet (UV) radiation of a first frequency band; a controller configured to record the intensity information, temporal information associated with measuring the intensity information, or both; and a transceiver device configured to transmit and receive radio frequency (RF) signals.
    Type: Application
    Filed: May 24, 2021
    Publication date: November 24, 2022
    Inventors: Kok Keong Richard LUM, Hong Sia TAN
  • Publication number: 20220238977
    Abstract: An isolator, circuit, and isolation method are disclosed. An illustrative capacitive isolator is disclosed to include an input side that receives an electrical input signal, an output side that outputs an electrical output signal, and an isolation barrier that electrically isolates the input side from the output side. The input side is further disclosed to include an array of input capacitors, where each capacitor in the array of input capacitors receives an input pulse based on the electrical input signal, where each capacitor in the array of input capacitors receives the input pulse offset from input pulses received at others of the capacitors in the array of input capacitors thereby extending a pulse duration of the electrical input signal.
    Type: Application
    Filed: January 26, 2022
    Publication date: July 28, 2022
    Inventor: Kok Keong Richard LUM
  • Publication number: 20220029043
    Abstract: An isolation system and isolation device are disclosed. An illustrative isolation device is disclosed to include a transmitter circuit, a detector circuit, a first wire bond, and a second wire bond. The detector circuit is configured to generate a first current in accordance with a first signal. The first wire bond is configured to receive the first current from the transmitter circuit to generate a magnetic flux. The second wire bond is configured to receive the magnetic flux. An induced current in the second wire bond is then detected in the detector circuit. The detector circuit is configured to generate a reproduced first signal, as an output of the detector circuit.
    Type: Application
    Filed: July 22, 2020
    Publication date: January 27, 2022
    Inventors: Kok Keong Richard LUM, Hong Sia TAN
  • Publication number: 20190327002
    Abstract: An example of an isolation sensor package is disclosed to include a first Integrated Circuit (IC) chip and a second IC chip. The first IC chip may include an input interface circuit that receives an input signal from a first input signal terminal and a second input signal terminal, where the input signal ranges between a first positive voltage and a first negative voltage. The first IC chip may further include a negative voltage generator that generates a second negative voltage, a level shifter that receives an output of the input interface circuit and generates a modified signal having a voltage level between a ground voltage provided to the ground terminal and a second positive voltage that is present at a voltage supply terminal. The first IC chip may further produce a signal based on the modified signal generated by the level shifter.
    Type: Application
    Filed: April 23, 2018
    Publication date: October 24, 2019
    Inventors: Huey Chian Foong, Richard Lum, Gek Yong Ng
  • Patent number: 10367502
    Abstract: An isolation system and isolation device are disclosed. An illustrative isolation device is disclosed to include first circuitry having at least a first emitter and a first detector, second circuitry having at least a dual-purpose component, an isolation material configured to electrically isolate the first circuitry from the second circuitry, and switching circuitry adapted to connect the dual-purpose component to emit a first signal for detection by the first detector in a first configuration, and to receive a second signal from the first emitter in a second configuration.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: July 30, 2019
    Assignee: Avago Technologies International Sales Pte. Limited
    Inventors: Richard Lum, Thiam Siew Tay, Yuen Yin Chan
  • Patent number: 10276490
    Abstract: An isolation device includes a first integrated circuit in electrical communication with first circuitry. The first integrated circuit includes a first light emitter portion to emit a first optical signal based on first electrical signals received at the first integrated circuit from the first circuitry. The isolation device includes a second integrated circuit in electrical communication with second circuitry. The second integrated circuit includes a first light-sensitive area to convert the first optical signal into second electrical signals for communication to the second circuitry. The isolation device includes an isolation material between the first integrated circuit and the second integrated circuit to electrically isolate the first integrated circuit from the second integrated circuit and to pass the first optical signal from the first light emitter portion to the first light-sensitive area.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: April 30, 2019
    Assignee: AVAGO TECHNOLOGIES INTERNATIONAL SALES PTE. LIMITED
    Inventors: Richard Lum, Chee Mang Wong, Chunlei Zhan
  • Publication number: 20190027436
    Abstract: An isolation device includes a first integrated circuit in electrical communication with first circuitry. The first integrated circuit includes a first light emitter portion to emit a first optical signal based on first electrical signals received at the first integrated circuit from the first circuitry. The isolation device includes a second integrated circuit in electrical communication with second circuitry. The second integrated circuit includes a first light-sensitive area to convert the first optical signal into second electrical signals for communication to the second circuitry. The isolation device includes an isolation material between the first integrated circuit and the second integrated circuit to electrically isolate the first integrated circuit from the second integrated circuit and to pass the first optical signal from the first light emitter portion to the first light-sensitive area.
    Type: Application
    Filed: July 20, 2017
    Publication date: January 24, 2019
    Inventors: Richard Lum, Chee Mang Wong, Chunlei Zhan
  • Publication number: 20180309444
    Abstract: An isolation system and isolation device are disclosed. An illustrative isolation device is disclosed to include first circuitry having at least a first emitter and a first detector, second circuitry having at least a dual-purpose component, an isolation material configured to electrically isolate the first circuitry from the second circuitry, and switching circuitry adapted to connect the dual-purpose component to emit a first signal for detection by the first detector in a first configuration, and to receive a second signal from the first emitter in a second configuration.
    Type: Application
    Filed: April 25, 2017
    Publication date: October 25, 2018
    Inventors: Richard Lum, Thiam Siew Tay, Yuen Yin Chan
  • Patent number: 9824965
    Abstract: An isolation device for isolating a first signal of a first circuit from a second circuit disclosed. The isolation device may have a substrate and a plurality of metal layers disposed on the substrate. The plurality of metal layers have a topmost metal layer disposed furthest away from the substrate and a first interconnect metal layer formed nearest to the substrate. The first interconnect metal layer is disposed at a first distance away from the substrate, whereas the topmost metal layer is disposed at an isolation distance away from a first adjacent metal layer formed nearest to the topmost metal layer. A portion of the topmost metal layer forms a first plate. The first plate is configured to transmit the first signal from the first circuit to a second plate that is connected to the second circuit, but electrically isolated from the first plate.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: November 21, 2017
    Assignee: AVAGO TECHNOLOGIES GENERAL IP (SINGAPORE) PTE. LTD.
    Inventors: Qian Tao, Boon Keat Tan, Richard Lum Kok Keong
  • Patent number: 9808712
    Abstract: A system communicates with a device in both a wired mode and a wireless mode, and is able to switch between these two modes without permanent disruption to an ongoing use. The system is configured to receive an indication of a condition that suggests switching from the wireless mode of operation to a wired mode of operation, to display a notification for the device to switch, and to transition from the wireless mode of operation to the wired mode of operation.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: November 7, 2017
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Richard Lum, Wei Guo
  • Patent number: 9793203
    Abstract: An isolation device for isolating a first signal of a first circuit from a second circuit disclosed. The isolation device may have a substrate and a plurality of metal layers disposed on the substrate. The isolation device comprises a first plate that is electrically coupled to the first circuit, and a second plate that is electrically coupled to the second circuit. The first plate is configured to transmit the first signal from to a second plate that is electrically isolated from the first plate. The first plate and the second plate is surrounded by an isolation material. The isolation device further comprises at least one trench that extend at least partially through the isolation material in a direction that is substantially perpendicular to the first plate and the second plate. The at least one trench may circumscribe one of the first plate and the second plate.
    Type: Grant
    Filed: October 2, 2015
    Date of Patent: October 17, 2017
    Assignee: AVAGO TECHNOLOGIES GENERAL IP (SINGAPORE) PTE. LTD.
    Inventors: Qian Tao, Richard Lum Kok Keong, Boon Keat Tan
  • Publication number: 20170117217
    Abstract: An isolation device for isolating a first signal of a first circuit from a second circuit disclosed. The isolation device may have a substrate and a plurality of metal layers disposed on the substrate. The plurality of metal layers have a topmost metal layer disposed furthest away from the substrate and a first interconnect metal layer formed nearest to the substrate. The first interconnect metal layer is disposed at a first distance away from the substrate, whereas the topmost metal layer is disposed at an isolation distance away from a first adjacent metal layer formed nearest to the topmost metal layer. A portion of the topmost metal layer forms a first plate. The first plate is configured to transmit the first signal from the first circuit to a second plate that is connected to the second circuit, but electrically isolated from the first plate.
    Type: Application
    Filed: January 5, 2017
    Publication date: April 27, 2017
    Inventors: Qian Tao, Boon Keat Tan, Richard Lum Kok Keong
  • Publication number: 20170098603
    Abstract: An isolation device for isolating a first signal of a first circuit from a second circuit disclosed. The isolation device may have a substrate and a plurality of metal layers disposed on the substrate. The isolation device comprises a first plate that is electrically coupled to the first circuit, and a second plate that is electrically coupled to the second circuit. The first plate is configured to transmit the first signal from to a second plate that is electrically isolated from the first plate. The first plate and the second plate is surrounded by an isolation material. The isolation device further comprises at least one trench that extend at least partially through the isolation material in a direction that is substantially perpendicular to the first plate and the second plate. The at least one trench may circumscribe one of the first plate and the second plate.
    Type: Application
    Filed: October 2, 2015
    Publication date: April 6, 2017
    Inventors: Qian Tao, Richard Lum Kok Keong, Boon Keat Tan
  • Patent number: 9576891
    Abstract: An isolation device for isolating a first signal of a first circuit from a second circuit disclosed. The isolation device may have a substrate and a plurality of metal layers disposed on the substrate. The plurality of metal layers have a topmost metal layer disposed furthest away from the substrate and a first interconnect metal layer formed nearest to the substrate. The first interconnect metal layer is disposed at a first distance away from the substrate, whereas the topmost metal layer is disposed at an isolation distance away from a first adjacent metal layer formed nearest to the topmost metal layer. A portion of the topmost metal layer forms a first plate. The first plate is configured to transmit the first signal from the first circuit to a second plate that is connected to the second circuit, but electrically isolated from the first plate.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: February 21, 2017
    Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.
    Inventors: Qian Tao, Richard Lum Kok Keong, Boon Keat Tan
  • Publication number: 20170043246
    Abstract: A system communicates with a device in both a wired mode and a wireless mode, and is able to switch between these two modes without permanent disruption to an ongoing use. The system is configured to receive an indication of a condition that suggests switching from the wireless mode of operation to a wired mode of operation, to display a notification for the device to switch, and to transition from the wireless mode of operation to the wired mode of operation.
    Type: Application
    Filed: August 19, 2016
    Publication date: February 16, 2017
    Inventors: Richard Lum, Wei Guo