Patents by Inventor KAH KHENG KHOO

KAH KHENG KHOO 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).

  • Method and device for wireless power transfer
    Patent number: 9979222
    Abstract: A method and device for wireless power transfer. The device includes a first sensor, a second sensor, and an electronic controller. The method includes determining, by the electronic controller, whether the first sensor senses a magnetic field. The method further includes determining, by the electronic controller, whether the second sensor senses the magnetic field. The method further includes determining, by the electronic controller, that the portable electronic device is in use when only the first sensor senses the magnetic field. The method further includes determining, by the electronic controller, that the portable electronic device is in storage when both the first and second sensors sense the magnetic field.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: May 22, 2018
    Assignee: MOTOROLA SOLUTIONS, INC.
    Inventors: Wei Lun Oo, Kah Kheng Khoo, Chi T. Tran
  • METHOD AND DEVICE FOR WIRELESS POWER TRANSFER
    Publication number: 20170179750
    Abstract: A method and device for wireless power transfer. The device includes a first sensor, a second sensor, and an electronic controller. The method includes determining, by the electronic controller, whether the first sensor senses a magnetic field. The method further includes determining, by the electronic controller, whether the second sensor senses the magnetic field. The method further includes determining, by the electronic controller, that the portable electronic device is in use when only the first sensor senses the magnetic field. The method further includes determining, by the electronic controller, that the portable electronic device is in storage when both the first and second sensors sense the magnetic field.
    Type: Application
    Filed: December 17, 2015
    Publication date: June 22, 2017
    Inventors: Wei Lun Oo, Kah Kheng Khoo, Chi T. Tran
  • Method and apparatus for self-heating of a battery from below an operating temperature
    Patent number: 9509152
    Abstract: A method and apparatus for a self-heating battery pack uses a battery cells of a first battery cell circuit to power a device. However these battery cells become substantially inoperative below a very cold temperature, so a second battery cell circuit, having a second type of battery cells which can operate at the cold temperature, is used to power a heating element to warm up the first battery cells to a temperature at which they can operate.
    Type: Grant
    Filed: August 7, 2014
    Date of Patent: November 29, 2016
    Assignee: MOTOROLA SOLUTIONS, INC.
    Inventors: Tee Howe Peh, Modh Hisham Muddin Bin Che At, Kah Kheng Khoo, MacWien Krishnamurthi, Poh Huat Low
  • METHOD AND APPARATUS FOR SELF-HEATING OF A BATTERY FROM BELOW AN OPERATING TEMPERATURE
    Publication number: 20160043447
    Abstract: A method and apparatus for a self-heating battery pack uses a battery cells of a first battery cell circuit to power a device. However these battery cells become substantially inoperative below a very cold temperature, so a second battery cell circuit, having a second type of battery cells which can operate at the cold temperature, is used to power a heating element to warm up the first battery cells to a temperature at which they can operate.
    Type: Application
    Filed: August 7, 2014
    Publication date: February 11, 2016
    Inventors: TEE HOWE PEH, MODH HISHAM MUDDIN BIN CHE AT, KAH KHENG KHOO, MACWIEN KRISHNAMURTHI, POH HUAT LOW