Patents by Inventor Chul Hoon Sung

Chul Hoon Sung 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).

  • Multi-channel receiver and method of reducing interference of the same
    Patent number: 8213889
    Abstract: A multi-channel receiver capable of minimizing an interference effect occurring among mounted receivers and a method of reducing interference of the multi-channel receiver capable of minimizing the interference effect occurring among the mounted receivers are provided. The multi-channel receiver includes an antenna, a first receiver, and a second receiver. The antenna receives an RF signal in a predetermined frequency band. The first receiver down-converts the RF signal received through the antenna into a first IF signal. The second receiver down-converts the RF signal received through the antenna into a second IF signal. Here, the first and second receivers down-convert the RF signal by exclusively using a local oscillation frequency signal generated by using a low side LO injection method or a local oscillation frequency signal generated by using a high side LO injection method.
    Type: Grant
    Filed: May 12, 2008
    Date of Patent: July 3, 2012
    Assignee: FCI Inc.
    Inventors: Seung Ho Shin, Kyoo Hyun Lim, Chul Hoon Sung
  • MULTI-CHANNEL RECEIVER AND METHOD OF REDUCING INTERFERENCE OF THE SAME
    Publication number: 20080299902
    Abstract: A multi-channel receiver capable of minimizing an interference effect occurring among mounted receivers and a method of reducing interference of the multi-channel receiver capable of minimizing the interference effect occurring among the mounted receivers are provided. The multi-channel receiver includes an antenna, a first receiver, and a second receiver. The antenna receives an RF signal in a predetermined frequency band. The first receiver down-converts the RF signal received through the antenna into a first IF signal. The second receiver down-converts the RF signal received through the antenna into a second IF signal. Here, the first and second receivers down-convert the RF signal by exclusively using a local oscillation frequency signal generated by using a low side LO injection method or a local oscillation frequency signal generated by using a high side LO injection method.
    Type: Application
    Filed: May 12, 2008
    Publication date: December 4, 2008
    Applicant: FCI INC.
    Inventors: Seung Ho Shin, Kyoo Hyun Lim, Chul Hoon Sung