Patents by Inventor Keyong Jiang

Keyong Jiang 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).

  • Publication number: 20130257673
    Abstract: A mobile communication coverage distribution system in corridor is used for mobile communication signal coverage in corridor environment. The system includes a radio frequency (RF) cable arranged along longitudinal direction of the corridor and intended for signal transmission and having a plurality of spaced access nodes; a signal source for transmitting signal to from the RF cable or receiving signal to from the RF cable; a number of coupled radiation units corresponding to each access node and used to realize signal coverage in a limited range near the access node, said signal being transmitted across the RF cable. The mobile communication coverage distribution system in corridor according to the invention has simple structure, low cost, is convenient in construction and has reliable performance.
    Type: Application
    Filed: October 28, 2011
    Publication date: October 3, 2013
    Applicant: Comba Telecom System (China) Ltd
    Inventors: Qinyuan Wang, Shanqiu Sun, Keyong Jiang, Peitao Liu, Junxiang Li, Binlong Bu
  • Patent number: 7522118
    Abstract: A wideband -shaped monopole dipole includes a first dipole unit, a second dipole unit, a feed device, a parallel-wire and two double-leads set between two cantilevers of the first dipole unit and the second dipole unit. The parallel-wire connects the first dipole unit with the second dipole unit in a parallel connection. The feed device includes a feed pad and a coaxial cable. The double-leads between the cantilevers of the first and second dipole units extend to form two parallel plates acting as a first balancer and a second balancer to balance impedance components of the first and second dipole units. A feed point of the feed device is disposed on a center portion of the parallel-wire. The feed pad is provided on one line of the parallel-wire. Outer and inner conductors of the coaxial cable are respectively coupled to the feed pad and the other line of the parallel-wire.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: April 21, 2009
    Assignee: Comba Telecom Technology (Guangzhou) Ltd.
    Inventors: Binlong Bu, Shanqiu Sun, Keyong Jiang, Chunhai Feng, Hongshan Chen