Patents by Inventor Khai Jin Choo

Khai Jin Choo 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 apparatus for intrinsically safe circuit board arrangement for portable electronic devices
    Patent number: 9980381
    Abstract: A method and circuit board arrangement for an intrinsically safe portable device includes two or more circuit boards having a frame structure that forms a contiguous boundary around a space between the circuit boards. In the space there are circuit components mounted on both circuit boards, and a connector that connect the two circuit boards. An encapsulant material fills the space bounded by the frame structure between the circuit boards to exclude airborne material from coming into contact with the encapsulated circuit components.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: May 22, 2018
    Assignee: MOTOROLA SOLUTIONS, INC.
    Inventors: Seng Huan Chuah, Friedrich Josef Bollmann, Khai Jin Choo, Weng Kong Hor, Sih Hau Tan
  • METHOD AND APPARATUS FOR INTRINSICALLY SAFE CIRCUIT BOARD ARRANGEMENT FOR PORTABLE ELECTRONIC DEVICES
    Publication number: 20160174377
    Abstract: A method and circuit board arrangement for an intrinsically safe portable device includes two or more circuit boards having a frame structure that forms a contiguous boundary around a space between the circuit boards. In the space there are circuit components mounted on both circuit boards, and a connector that connect the two circuit boards. An encapsulant material fills the space bounded by the frame structure between the circuit boards to exclude airborne material from coming into contact with the encapsulated circuit components.
    Type: Application
    Filed: December 16, 2014
    Publication date: June 16, 2016
    Inventors: SENG HUAN CHUAH, FRIEDRICH JOSEF BOLLMANN, KHAI JIN CHOO, WENG KONG HOR, SIH HAU TAN
  • Method and apparatus for displaying an image on a communication device
    Patent number: 8382294
    Abstract: A method and apparatus for displaying an image on a communication device are provided. The communication device is formed of a housing (305) having a plurality of surfaces and includes an electronically controlled display (310) coupled to one of the surfaces. The housing further includes a reflecting device (345) for reflecting an image from the display (310) onto another, non-electronic, display (320) located on another surface of the housing. The image is thus viewable on both surfaces of the housing.
    Type: Grant
    Filed: April 30, 2010
    Date of Patent: February 26, 2013
    Assignee: Motorola Solutions, Inc.
    Inventors: Shijie Hua, Khai Jin Choo, Seng Huan Chuah, Wey Chien Heng, Boon Hoong Ooi, Shook Gunn Tan
  • METHOD AND APPARATUS FOR DISPLAYING AN IMAGE ON A COMMUNICATION DEVICE
    Publication number: 20110267257
    Abstract: A method and apparatus for displaying an image on a communication device are provided. The communication device is formed of a housing (305) having a plurality of surfaces and includes an electronically controlled display (310) coupled to one of the surfaces. The housing further includes a reflecting device (345) for reflecting an image from the display (310) onto another, non-electronic, display (320) located on another surface of the housing. The image is thus viewable on both surfaces of the housing.
    Type: Application
    Filed: April 30, 2010
    Publication date: November 3, 2011
    Applicant: MOTOROLA, INC.
    Inventors: Shijie Hua, Khai Jin Choo, Seng Huan Chuah, Wey Chien Heng, Boon Hoong Ooi, Shook Gunn Tan