Patents by Inventor Heung-Jae Im

Heung-Jae Im 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: 7889809
    Abstract: Disclosed is a weight vector computing unit using a symbol-rate, a chip-rate and/or a mixed-rate in a Smart Antenna System. The weight vector computing unit is useful in a wireless communication network having a reverse pilot channel. Further, by using such the weight vector computing unit, high-speed broadband communications are available in a smart antenna system. In such 3-G wireless communications where both traffic signals and pilot signals are transmitted from a terminal, the weight vector computing unit calculates optimized weight vectors using the pilot signal and the calculated weight vectors are adapted to each traffic signal. The weight vector computing unit is configured to receive the received signal and/or the integrated signal in order to produce a weight vector for beamforming without any training signal.
    Type: Grant
    Filed: March 6, 2009
    Date of Patent: February 15, 2011
    Assignees: SAS Technologies Co., Ltd., Industry-University Cooperation Foundation Hanyang University
    Inventors: Heung-Jae Im, Sung-Won Choi, Taeyoul Oh
  • Publication number: 20090225813
    Abstract: Disclosed is a weight vector computing unit using a symbol-rate, a chip-rate and/or a mixed-rate in a Smart Antenna System. The weight vector computing unit is useful in a wireless communication network having a reverse pilot channel. Further, by using such the weight vector computing unit, high-speed broadband communications are available in a smart antenna system. In such 3-G wireless communications where both traffic signals and pilot signals are transmitted from a terminal, the weight vector computing unit calculates optimized weight vectors using the pilot signal and the calculated weight vectors are adapted to each traffic signal. The weight vector computing unit is configured to receive the received signal and/or the integrated signal in order to produce a weight vector for beamforming without any training signal.
    Type: Application
    Filed: March 6, 2009
    Publication date: September 10, 2009
    Inventor: Heung-Jae IM
  • Patent number: 7577185
    Abstract: The present invention relates to a finger using symbol-rate weighting in Smart Antenna System, and an apparatus and method for Demodulating signals using such a finger. The present invention is useful in a wireless communication network having a reverse pilot channel. Further, by using such a finger, the present invention provides a demodulation apparatus and method for making high-speed broadband communications available in a smart antenna system. In such 3-G wireless communications where both traffic signals and pilot signals are transmitted from a terminal, the present invention calculates optimized weight vectors using the pilot signal and the calculated weight vectors are adapted to each traffic signal with a symbol-rate weight.
    Type: Grant
    Filed: April 1, 2004
    Date of Patent: August 18, 2009
    Assignees: SAS Technologies Co., Ltd., Industry-University Cooperation Foundation Hanyang University
    Inventor: Heung-Jae Im
  • Patent number: 7522652
    Abstract: The present invention relates to a finger using chip-rate weighting in Smart Antenna System, and an apparatus and method for Demodulating signals using such a finger. The present invention is useful in a wireless communication network having a reverse pilot channel. Further, by using such a finger, the present invention provides a demodulation apparatus and method for making high-speed broadband communications available in a smart antenna system. In such 3-G wireless communications where both traffic signals and pilot signals are transmitted from a terminal, the present invention calculates optimized weight vectors using the pilot signal and the calculated weight vectors are adapted to each traffic signal with a chip-rate weight.
    Type: Grant
    Filed: April 1, 2004
    Date of Patent: April 21, 2009
    Inventor: Heung-Jae Im
  • Patent number: 7522654
    Abstract: The present invention relates to a finger using mixed-rate weighting in Smart Antenna System, and an apparatus and method for Demodulating signals using such a finger. The present invention is useful in a wireless communication network having a reverse pilot channel. Further, by using such a finger, the present invention provides a demodulation apparatus and method for making high-speed broadband communications available in a smart antenna system. In such 3-G wireless communications where both traffic signals and pilot signals are transmitted from a terminal, the present invention calculates optimized weight vectors using the pilot signal and the calculated weight vectors are adapted to each traffic signal with a symbol-rate weight.
    Type: Grant
    Filed: April 1, 2004
    Date of Patent: April 21, 2009
    Inventor: Heung-Jae Im
  • Patent number: 7268709
    Abstract: Disclosed is a method for generating codewords through a repetition having a number of repetitions by means of multiple code symbols generated by a mother code and included in a slot. The method including the steps of generating the code symbols through a channel coding for input information symbols, and mapping the code symbols so that copies generated by the repetition are located within a bit sequence in an order different from an order of the code symbols in a bit sequence before the repetition, and performing the repetition.
    Type: Grant
    Filed: December 6, 2005
    Date of Patent: September 11, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung-Joon Park, Heung-Jae Im
  • Publication number: 20060120482
    Abstract: Disclosed is a method for generating codewords through a repetition having a number of repetitions by means of multiple code symbols generated by a mother code and included in a slot. The method including the steps of generating the code symbols through a channel coding for input information symbols, and mapping the code symbols so that copies generated by the repetition are located within a bit sequence in an order different from an order of the code symbols in a bit sequence before the repetition, and performing the repetition.
    Type: Application
    Filed: December 6, 2005
    Publication date: June 8, 2006
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung-Joon Park, Heung-Jae Im
  • Publication number: 20040184429
    Abstract: The present invention relates to a finger using chip-rate weighting in Smart Antenna System, and an apparatus and method for Demodulating signals using such a finger. The present invention is useful in a wireless communication network having a reverse pilot channel. Further, by using such a finger, the present invention provides a demodulation apparatus and method for making high-speed broadband communications available in a smart antenna system. In such 3-G wireless communications where both traffic signals and pilot signals are transmitted from a terminal, the present invention calculates optimized weight vectors using the pilot signal and the calculated weight vectors are adapted to each traffic signal with a chip-rate weight.
    Type: Application
    Filed: April 1, 2004
    Publication date: September 23, 2004
    Inventor: Heung-Jae Im
  • Publication number: 20040184515
    Abstract: The present invention relates to a finger using mixed-rate weighting in Smart Antenna System, and an apparatus and method for Demodulating signals using such a finger. The present invention is useful in a wireless communication network having a reverse pilot channel. Further, by using such a finger, the present invention provides a demodulation apparatus and method for making high-speed broadband communications available in a smart antenna system. In such 3-G wireless communications where both traffic signals and pilot signals are transmitted from a terminal, the present invention calculates optimized weight vectors using the pilot signal and the calculated weight vectors are adapted to each traffic signal with a symbol-rate weight.
    Type: Application
    Filed: April 1, 2004
    Publication date: September 23, 2004
    Inventor: Heung-Jae Im
  • Publication number: 20040184428
    Abstract: The present invention relates to a finger using symbol-rate weighting in Smart Antenna System, and an apparatus and method for Demodulating signals using such a finger. The present invention is useful in a wireless communication network having a reverse pilot channel. Further, by using such a finger, the present invention provides a demodulation apparatus and method for making high-speed broadband communications available in a smart antenna system. In such 3-G wireless communications where both traffic signals and pilot signals are transmitted from a terminal, the present invention calculates optimized weight vectors using the pilot signal and the calculated weight vectors are adapted to each traffic signal with a symbol-rate weight.
    Type: Application
    Filed: April 1, 2004
    Publication date: September 23, 2004
    Inventor: Heung-Jae Im