Patents by Inventor Kai Ning Yung

Kai Ning Yung 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).

  • Dielectric loaded elliptical helix antenna
    Patent number: 9722297
    Abstract: An integrated wire elliptical helical antenna with novel cuboids dielectric resonator loading for circularly polarized wave transmission and reception is presented. The antenna is designed to operate in the center frequency of 915 MHz and it is utilized in RFID systems as a base station antenna. The elliptical structure is formed by steel wire and supporting acrylic plastic. The cuboids dielectric resonator is loaded at the inner surface of the proposed antenna.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: August 1, 2017
    Assignee: City University of Hong Kong
    Inventors: Kai Ning Yung, Pak Wai Chan, Hang Wong, Wenquan Che
  • Unidirectional antenna comprising a dipole and a loop
    Patent number: 8410982
    Abstract: A unidirectional wireless antenna with a front-to-back ratio of 20 dB comprises a loop antenna and a dipole antenna interconnected by a metallic element and printed on a printed circuit board. The antenna is small in size but provides good unidirectional transmission.
    Type: Grant
    Filed: October 23, 2008
    Date of Patent: April 2, 2013
    Assignee: City University of Hong Kong
    Inventors: Edward Kai Ning Yung, Pak Wai Chan, Hang Wong
  • DIELECTRIC LOADED ELLIPTICAL HELIX ANTENNA
    Publication number: 20120154251
    Abstract: An integrated wire elliptical helical antenna with novel cuboids dielectric resonator loading for circularly polarized wave transmission and reception is presented. The antenna is designed to operate in the centre frequency of 915 MHz and it is utilized in RFID systems as a base station antenna. The elliptical structure is formed by steel wire and supporting acrylic plastic. The cuboids dielectric resonator is loaded at the inner surface of the proposed antenna.
    Type: Application
    Filed: December 21, 2010
    Publication date: June 21, 2012
    Inventors: Kai Ning Yung, Pak Wai Chan, Hang Wong, Wenquan Che
  • UNIDIRECTIONAL ANTENNA COMPRISING A DIPOLE AND A LOOP
    Publication number: 20100103061
    Abstract: A unidirectional wireless antenna with a front-to-back ratio of 20 dB comprises a loop antenna and a dipole antenna interconnected by a metallic element and printed on a printed circuit board. The antenna is small in size but provides good unidirectional transmission.
    Type: Application
    Filed: October 23, 2008
    Publication date: April 29, 2010
    Applicant: CITY UNIVERSITY OF HONG KONG
    Inventors: Edward Kai Ning YUNG, Pak Wai CHAN, Hang WONG
  • COMPUTER MOUSE
    Publication number: 20090033626
    Abstract: A pad-free radio-frequency mouse includes an ergonomic design such that the mouse is contoured to a user's hand, a Radio-Frequency mouse transmitter, and a USB Radio-Frequency receiver. With the usual mouse pad removed, the cursor on a monitor can be subtly maneuvered by moving one's thumb or fingers over an optical sensor in the mouse. Practically all functions found in existing mice and new functions can be implemented via five or more buttons provided adjacent the optical sensor.
    Type: Application
    Filed: July 31, 2007
    Publication date: February 5, 2009
    Applicant: CITY UNIVERSITY OF HONG KONG
    Inventors: Edward Kai-Ning YUNG, Lee Ming CHENG, Kam Man SHUM, Yin FUNG