Patents by Inventor Ji-myung Jung

Ji-myung Jung 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).

  • Patent number: 10050341
    Abstract: The present disclosure in some embodiments provides an antenna line device installed in each antenna apparatus of a multiple antenna system, including a control part for controlling according to control signal from a base station body, and at least two of a DC ping part, RF ping part and domain detection part. The DC ping part is configured to include an electrical element installed in an operating power transfer path to cause a voltage drop, and to detect an operating power level before or after the voltage drop caused by the electrical element under the control of the control part. The RF ping part is configured to check a connection of feeder lines to corresponding antenna arrays by detecting signals inputted through the feeder lines under the control of the control part. The domain detection part includes a switch configured to be installed in a control data transfer path and to be turned on/off for identifying an antenna apparatus that covers each coverage sector.
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: August 14, 2018
    Assignee: KMW INC.
    Inventors: Myoung-sik Lee, Jong-han Kim, Ji-myung Jung, Dong-hun Lee
  • Patent number: 9866367
    Abstract: The present disclosure relates to a combiner utilized in a multi-band base station system and including a plurality of first ports assigned different frequency bands and a second port in connection with a common feeder cable, including DC signal lines each branching from each first port and the second port, control signal lines each branching from each first port and the second port, switching modules on each of the DC signal lines, modems provided on each control signal line to modulate or demodulate an input control signal, and a control unit configured to control switching of each switching module according to an operation type of the combiner. The operation type includes a first type being responsive to signal inputs through at least some of the plurality of first ports and a second type being responsive to a signal input through the second port.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: January 9, 2018
    Assignee: KMW INC.
    Inventors: Jong-han Kim, Kang-ryoung Lee, Ji-myung Jung
  • Publication number: 20170257207
    Abstract: The present disclosure relates to a combiner utilized in a multi-band base station system and including a plurality of first ports assigned different frequency bands and a second port in connection with a common feeder cable, including DC signal lines each branching from each first port and the second port, control signal lines each branching from each first port and the second port, switching modules on each of the DC signal lines, modems provided on each control signal line to modulate or demodulate an input control signal, and a control unit configured to control switching of each switching module according to an operation type of the combiner. The operation type includes a first type being responsive to signal inputs through at least some of the plurality of first ports and a second type being responsive to a signal input through the second port.
    Type: Application
    Filed: May 23, 2017
    Publication date: September 7, 2017
    Inventors: Jong-han KIM, Kang-ryoung LEE, Ji-myung JUNG
  • Publication number: 20170040682
    Abstract: The present disclosure in some embodiments provides an antenna line device installed in each antenna apparatus of a multiple antenna system, including a control part for controlling according to control signal from a base station body, and at least two of a DC ping part, RF ping part and domain detection part. The DC ping part is configured to include an electrical element installed in an operating power transfer path to cause a voltage drop, and to detect an operating power level before or after the voltage drop caused by the electrical element under the control of the control part. The RF ping part is configured to check a connection of feeder lines to corresponding antenna arrays by detecting signals inputted through the feeder lines under the control of the control part. The domain detection part includes a switch configured to be installed in a control data transfer path and to be turned on/off for identifying an antenna apparatus that covers each coverage sector.
    Type: Application
    Filed: October 20, 2016
    Publication date: February 9, 2017
    Inventors: Myoung-sik Lee, Jong-han Kim, Ji-myung Jung, Dong-hun Lee