Patents by Inventor Il Soon Jang

Il Soon Jang 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: 7103084
    Abstract: An apparatus and method of searching a preamble signal in a search window for reducing a chip size of a preamble searcher in a transceiver of a base station is enclosed. By using a plurality of small window preamble searchers searching the preamble signal in a small search window, which is a division of a large search windows of a conventional preamble searcher divided by search start times, the preamble searcher of the entire search window can be implemented and the size of semiconductor chip is reduced by implementing distributing small preamble searcher in a small semiconductor chips.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: September 5, 2006
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Il-Soon Jang, Kwang Soon Kim, Kyoung Seok Lee, Sun Sim Chun, Deuk Su Lyu
  • Patent number: 6853677
    Abstract: There is disclosed a finger for effectively processing signals received via multi-path in a receiver of a mobile communication system and a RAKE receiver having the finger. In processing signals received by a plurality of antennas in the present invention, a single finger batch-processes the signals received by the plurality of antennas using the property that the time delays of the received signals are almost same and a time division method. At this time, a single apparatus batch-processes a portion necessary for a common calculation and a plurality apparatus separately process portions necessary for separate calculations. Thus, the present invention can provide a high-performance finger and a RAKE receiver having the finger wherein a single finger can process each of signals received by a plurality of antennas.
    Type: Grant
    Filed: December 22, 2000
    Date of Patent: February 8, 2005
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Kwang Soon Kim, Byung Yang Ahn, Jin Hee Han, Jae Wook Chung, Il Soon Jang
  • Patent number: 6832073
    Abstract: An apparatus and method for canceling pilot signals from neighbor base stations is disclosed. The present invention cancels unnecessary pilot signals transmitted from the neighbor base stations by detecting, analyzing a PN signal in a pilot signal of each base station, generating estimated interference signal according to analyzed information from the detected PN signal and subtracting estimated interference signal from the received signal. Therefore, the present invention increases a bandwidth of downlink transmission channel and improves the demodulator to be operatable in low signal-to-noise ratio (Eb/No).
    Type: Grant
    Filed: April 19, 2002
    Date of Patent: December 14, 2004
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Il-Soon Jang, Deuk Su Lyu, Hyun Seo Oh, Hyoung-Goo Jeon
  • Publication number: 20030119451
    Abstract: An apparatus and method for canceling pilot signals from neighbor base stations is disclosed. The present invention cancels unnecessary pilot signals transmitted from the neighbor base stations by detecting, analyzing a PN signal in a pilot signal of each base station, generating estimated interference signal according to analyzed information from the detected PN signal and subtracting estimated interference signal from the received signal. Therefore, the present invention increases a bandwidth of downlink transmission channel and improves the demodulator to be operatable in low signal-to-noise ratio (Eb/No).
    Type: Application
    Filed: April 19, 2002
    Publication date: June 26, 2003
    Inventors: Il-Soon Jang, Deuk Su Lyu, Hyun Seo Oh, Hyoung-Goo Jeon
  • Publication number: 20030118084
    Abstract: An apparatus and method of searching a preamble signal in a search window for reducing a chip size of a preamble searcher in a transceiver of a base station is enclosed. By using a plurality of small window preamble searchers searching the preamble signal in a small search window, which is a division of a large search windows of a conventional preamble searcher divided by search start times, the preamble searcher of the entire search window can be implemented and the size of semiconductor chip is reduced by implementing distributing small preamble searcher in a small semiconductor chips.
    Type: Application
    Filed: June 28, 2002
    Publication date: June 26, 2003
    Inventors: Il-Soon Jang, Kwang Soon Kim, Kyoung Seok Lee, Sun Sim Chun, Deuk Su Lyu
  • Publication number: 20020041624
    Abstract: There is disclosed a finger for effectively processing signals received via multi-path in a receiver of a mobile communication system and a RAKE receiver having the finger. In processing signals received by a plurality of antennas in the present invention, a single finger batch-processes the signals received by the plurality of antennas using the property that the time delays of the received signals are almost same and a time division method. At this time, a single apparatus batch-processes a portion necessary for a common calculation and a plurality apparatus separately process portions necessary for separate calculations. Thus, the present invention can provide a high-performance finger and a RAKE receiver having the finger wherein a single finger can process each of signals received by a plurality of antennas.
    Type: Application
    Filed: December 22, 2000
    Publication date: April 11, 2002
    Inventors: Kwang Soon Kim, Byung Yang Ahn, Jin Hee Han, Jae Wook Chung, Il Soon Jang