Patents by Inventor Kyu-jong Hwang

Kyu-jong Hwang 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: 8428524
    Abstract: Disclosed is an adaptive transmit and receive method and device in a multiple-antenna wireless communication system. A transmit mode comprises different main transmit modes each of which includes one or both of a sub-transmit mode based on STBC and a sub-transmit mode based on SM. A receiver calculates an STBC performance parameter and a SM performance parameter, and a transmitter uses the parameters to determine a main transmit mode with maximum data rates and select a sub-transmit mode for minimizing power consumption. The transmitter channel-encodes, modulates and antenna-maps input data according to the selected transmit mode, and outputs results to the receiver. The receiver antenna/symbol-demodulates and channel-decodes the received data.
    Type: Grant
    Filed: February 2, 2012
    Date of Patent: April 23, 2013
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Yun-Hee Kim, Kwang-Soon Kim, Sang-Hyun Lee, Kyu-Jong Hwang, Kyung-Hi Chang
  • Publication number: 20120127886
    Abstract: Disclosed is an adaptive transmit and receive method and device in a multiple-antenna wireless communication system. A transmit mode comprises different main transmit modes each of which includes one or both of a sub-transmit mode based on STBC and a sub-transmit mode based on SM. A receiver calculates an STBC performance parameter and a SM performance parameter, and a transmitter uses the parameters to determine a main transmit mode with maximum data rates and select a sub-transmit mode for minimizing power consumption. The transmitter channel-encodes, modulates and antenna-maps input data according to the selected transmit mode, and outputs results to the receiver. The receiver antenna/symbol-demodulates and channel-decodes the received data.
    Type: Application
    Filed: February 2, 2012
    Publication date: May 24, 2012
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Yun-Hee Kim, Kwang-Soon Kim, Sang-Hyun Lee, Kyu-Jong Hwang, Kyung-Hi Chang
  • Patent number: 8140029
    Abstract: Disclosed is an adaptive transmit and receive method and device in a multiple-antenna wireless communication system. A transmit mode comprises different main transmit modes each of which includes one or both of a sub-transmit mode based on STBC and a sub-transmit mode based on SM. A receiver calculates an STBC performance parameter and a SM performance parameter, and a transmitter uses the parameters to determine a main transmit mode with maximum data rates and select a sub-transmit mode for minimizing power consumption. The transmitter channel-encodes, modulates and antenna-maps input data according to the selected transmit mode, and outputs results to the receiver. The receiver antenna/symbol-demodulates and channel-decodes the received data.
    Type: Grant
    Filed: September 2, 2010
    Date of Patent: March 20, 2012
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Yun-Hee Kim, Kwang-Soon Kim, Sang-Hyun Lee, Kyu-Jong Hwang, Kyung-Hi Chang
  • Publication number: 20110059700
    Abstract: Disclosed is an adaptive transmit and receive method and device in a multiple-antenna wireless communication system. A transmit mode comprises different main transmit modes each of which includes one or both of a sub-transmit mode based on STBC and a sub-transmit mode based on SM. A receiver calculates an STBC performance parameter and a SM performance parameter, and a transmitter uses the parameters to determine a main transmit mode with maximum data rates and select a sub-transmit mode for minimizing power consumption. The transmitter channel-encodes, modulates and antenna-maps input data according to the selected transmit mode, and outputs results to the receiver. The receiver antenna/symbol-demodulates and channel-decodes the received data.
    Type: Application
    Filed: September 2, 2010
    Publication date: March 10, 2011
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Yun-Hee Kim, Kwang-Soon Kim, Sang-Hyun Lee, Kyu-Jong Hwang, Kyung-Hi Chang
  • Patent number: 7123887
    Abstract: Disclosed is an adaptive transmit and receive method and device in a multiple-antenna wireless communication system. A transmit mode comprises different main transmit modes each of which includes one or both of a sub-transmit mode based on STBC and a sub-transmit mode based on SM. A receiver calculates an STBC performance parameter and a SM performance parameter, and a transmitter uses the parameters to determine a main transmit mode with maximum data rates and select a sub-transmit mode for minimizing power consumption. The transmitter channel-encodes, modulates and antenna-maps input data according to the selected transmit mode, and outputs results to the receiver. The receiver antenna/symbol-demodulates and channel-decodes the received data.
    Type: Grant
    Filed: November 25, 2003
    Date of Patent: October 17, 2006
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Yun-Hee Kim, Kwang-Soon Kim, Sang-Hyun Lee, Kyu-Jong Hwang, Kyung-Hi Chang
  • Patent number: 6941153
    Abstract: A radio communication apparatus having maximized channel capacity, and a method thereof, preferably includes a transmitter having a plurality of transmitting antennae, wherein each transmitting antenna transmits on a channel using a transmission power that is allocated and a base-band signal that is modulated according to a feedback signal from a receiver. The feedback signal is preferably derived in the receiver using an algorithm that analyzes and processes a previously received signal from the plurality of transmitting antennae. Only information on the amount of transmission power to be allocated to a first transmitting antenna from the plurality of transmitting antennae is fed back. Therefore, the channel capacity may be maximized while minimizing the amount of information in a feedback signal. Further, decoupling conversion is not required, thereby reducing the size and cost of manufacturing hardware.
    Type: Grant
    Filed: May 7, 2002
    Date of Patent: September 6, 2005
    Assignees: Samsung Electronics Co., Ltd.
    Inventors: Ki-ho Kim, Sung-jin Kim, Kwang-bok Lee, Kyu-jong Hwang
  • Publication number: 20040132496
    Abstract: Disclosed is an adaptive transmit and receive method and device in a multiple-antenna wireless communication system. A transmit mode comprises different main transmit modes each of which includes one or both of a sub-transmit mode based on STBC and a sub-transmit mode based on SM. A receiver calculates an STBC performance parameter and a SM performance parameter, and a transmitter uses the parameters to determine a main transmit mode with maximum data rates and select a sub-transmit mode for minimizing power consumption. The transmitter channel-encodes, modulates and antenna-maps input data according to the selected transmit mode, and outputs results to the receiver. The receiver antenna/symbol-demodulates and channel-decodes the received data.
    Type: Application
    Filed: November 25, 2003
    Publication date: July 8, 2004
    Inventors: Yun-Hee Kim, Kwang-Soon Kim, Sang-Hyun Lee, Kyu-Jong Hwang, Kyung-Hi Chang
  • Publication number: 20020187753
    Abstract: A radio communication apparatus having maximized channel capacity, and a method thereof, preferably includes a transmitter having a plurality of transmitting antennae, wherein each transmitting antenna transmits on a channel using a transmission power that is allocated and a base-band signal that is modulated according to a feedback signal from a receiver. The feedback signal is preferably derived in the receiver using an algorithm that analyzes and processes a previously received signal from the plurality of transmitting antennae. Only information on the amount of transmission power to be allocated to a first transmitting antenna from the plurality of transmitting antennae is fed back. Therefore, the channel capacity may be maximized while minimizing the amount of information in a feedback signal. Further, decoupling conversion is not required, thereby reducing the size and cost of manufacturing hardware.
    Type: Application
    Filed: May 7, 2002
    Publication date: December 12, 2002
    Applicant: Samsung Electronics Co., Ltd
    Inventors: Ki-ho Kim, Sung-jin Kim, Kwang-bok Lee, Kyu-jong Hwang
  • Patent number: RE42098
    Abstract: Disclosed is an adaptive transmit and receive method and device in a multiple-antenna wireless communication system. A transmit mode comprises different main transmit modes each of which includes one or both of a sub-transmit mode based on STBC and a sub-transmit mode based on SM. A receiver calculates an STBC performance parameter and a SM performance parameter, and a transmitter uses the parameters to determine a main transmit mode with maximum data rates and select a sub-transmit mode for minimizing power consumption. The transmitter channel-encodes, modulates and antenna-maps input data according to the selected transmit mode, and outputs results to the receiver. The receiver antenna/symbol-demodulates and channel-decodes the received data.
    Type: Grant
    Filed: October 17, 2008
    Date of Patent: February 1, 2011
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Yun-Hee Kim, Kwang-Soon Kim, Sang-Hyun Lee, Kyu-Jong Hwang, Kyung-Hi Chang