Patents by Inventor Eng Heng Tan

Eng Heng Tan 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).

  • Illuminated rotary control for a communication device
    Patent number: 9249971
    Abstract: A rotary control (120) is illuminated through a controlled illuminated indicator provided by a light guide arc reflector (114) disposed on a control panel (104) along an outer periphery of a rotary control knob (112). The controlled illuminated indicator concurrently indicates status and location of the rotary control knob. The controlled illuminated indictor generates an increased rotational arc of illumination in response to the knob being rotated in a first direction and generates a decreased rotational arc of illumination in response to the knob rotated in a second direction. The rotary control (120) utilizes a helix slider (304) to control upwards and downwards movement of a reflector shield (302) which block and unblocks light rays in response to the knob (112) being rotated.
    Type: Grant
    Filed: December 5, 2011
    Date of Patent: February 2, 2016
    Assignee: Motorola Solutions, Inc.
    Inventors: Wey Chien Heng, Shijie Hua, Eng Heng Tan
  • ILLUMINATED ROTARY CONTROL FOR A COMMUNICATION DEVICE
    Publication number: 20140315510
    Abstract: A rotary control (120) is illuminated through a controlled illuminated indicator provided by a light guide arc reflector (114) disposed on a control panel (104) along an outer periphery of a rotary control knob (112). The controlled illuminated indicator concurrently indicates status and location of the rotary control knob. The controlled illuminated indictor generates an increased rotational arc of illumination in response to the knob being rotated in a first direction and generates a decreased rotational arc of illumination in response to the knob rotated in a second direction. The rotary control (120) utilizes a helix slider (304) to control upwards and downwards movement of a reflector shield (302) which block and unblocks light rays in response to the knob (112) being rotated.
    Type: Application
    Filed: December 5, 2011
    Publication date: October 23, 2014
    Inventors: Wey Chien Heng, Shijie Hua, Eng Heng Tan