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).
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Publication number: 20230231070Abstract: 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: ApplicationFiled: March 29, 2023Publication date: July 20, 2023Inventors: Kok Keong Richard LUM, Hong Sia TAN
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Patent number: 11621364Abstract: 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: GrantFiled: July 22, 2020Date of Patent: April 4, 2023Assignee: MPICS INNOVATIONS PTE. LTDInventors: Kok Keong Richard Lum, Hong Sia Tan
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Publication number: 20220375327Abstract: 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: ApplicationFiled: June 14, 2022Publication date: November 24, 2022Inventors: Kok Keong Richard LUM, Hong Sia TAN
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Publication number: 20220370670Abstract: 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: ApplicationFiled: May 24, 2021Publication date: November 24, 2022Inventors: Kok Keong Richard LUM, Hong Sia TAN
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Publication number: 20220375325Abstract: 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: ApplicationFiled: July 14, 2021Publication date: November 24, 2022Inventors: Kok Keong Richard LUM, Hong Sia TAN
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Publication number: 20220375324Abstract: 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: ApplicationFiled: May 24, 2021Publication date: November 24, 2022Inventors: Kok Keong Richard LUM, Hong Sia TAN
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Publication number: 20220238977Abstract: 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: ApplicationFiled: January 26, 2022Publication date: July 28, 2022Inventor: Kok Keong Richard LUM
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Publication number: 20220029043Abstract: 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: ApplicationFiled: July 22, 2020Publication date: January 27, 2022Inventors: Kok Keong Richard LUM, Hong Sia TAN
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Publication number: 20190327002Abstract: 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: ApplicationFiled: April 23, 2018Publication date: October 24, 2019Inventors: Huey Chian Foong, Richard Lum, Gek Yong Ng
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Patent number: 10367502Abstract: 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: GrantFiled: April 25, 2017Date of Patent: July 30, 2019Assignee: Avago Technologies International Sales Pte. LimitedInventors: Richard Lum, Thiam Siew Tay, Yuen Yin Chan
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Patent number: 10276490Abstract: 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: GrantFiled: July 20, 2017Date of Patent: April 30, 2019Assignee: AVAGO TECHNOLOGIES INTERNATIONAL SALES PTE. LIMITEDInventors: Richard Lum, Chee Mang Wong, Chunlei Zhan
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Publication number: 20190027436Abstract: 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: ApplicationFiled: July 20, 2017Publication date: January 24, 2019Inventors: Richard Lum, Chee Mang Wong, Chunlei Zhan
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Publication number: 20180309444Abstract: 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: ApplicationFiled: April 25, 2017Publication date: October 25, 2018Inventors: Richard Lum, Thiam Siew Tay, Yuen Yin Chan
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Patent number: 9824965Abstract: 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: GrantFiled: January 5, 2017Date of Patent: November 21, 2017Assignee: AVAGO TECHNOLOGIES GENERAL IP (SINGAPORE) PTE. LTD.Inventors: Qian Tao, Boon Keat Tan, Richard Lum Kok Keong
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Patent number: 9808712Abstract: 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: GrantFiled: August 19, 2016Date of Patent: November 7, 2017Assignee: Microsoft Technology Licensing, LLCInventors: Richard Lum, Wei Guo
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Patent number: 9793203Abstract: 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: GrantFiled: October 2, 2015Date of Patent: October 17, 2017Assignee: AVAGO TECHNOLOGIES GENERAL IP (SINGAPORE) PTE. LTD.Inventors: Qian Tao, Richard Lum Kok Keong, Boon Keat Tan
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Publication number: 20170117217Abstract: 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: ApplicationFiled: January 5, 2017Publication date: April 27, 2017Inventors: Qian Tao, Boon Keat Tan, Richard Lum Kok Keong
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Publication number: 20170098603Abstract: 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: ApplicationFiled: October 2, 2015Publication date: April 6, 2017Inventors: Qian Tao, Richard Lum Kok Keong, Boon Keat Tan
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Patent number: 9576891Abstract: 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: GrantFiled: October 1, 2015Date of Patent: February 21, 2017Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.Inventors: Qian Tao, Richard Lum Kok Keong, Boon Keat Tan
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Publication number: 20170043246Abstract: 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: ApplicationFiled: August 19, 2016Publication date: February 16, 2017Inventors: Richard Lum, Wei Guo