Patents by Inventor Jin-Soo Choi

Jin-Soo Choi 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).

  • METHOD AND APPARATUS FOR DETECTING A SEGMENT IDENTIFIER IN A WIRELESS COMMUNICATION SYSTEM
    Publication number: 20130130702
    Abstract: The present invention relates to a segment identifier detection method performed by a terminal if a segment being administrated by a base station in a wireless communication system has the frequency reuse factor of 3 and 2 at the same time. In particular, the method comprises: acquiring a cell identifier and a segment identifier corresponding to the cell identifier from a secondary advanced preamble (SA-preamble) that has been received from the base station; determining a frequency reuse factor of the base station; and if the frequency reuse factor is 2 and the obtained segment identifier is a third segment identifier, transforming the segment identifier corresponding to the cell identifier into a first segment identifier or a second segment identifier.
    Type: Application
    Filed: February 28, 2011
    Publication date: May 23, 2013
    Applicant: LG ELECTRONICS INC.
    Inventors: Jin Soo Choi, Han Gyu Cho, Jin Sam Kwak, Wook Bong Lee
  • METHOD AND APPARATUS FOR ENCODING IMAGES USING TEMPLATE MATCHING AND METHOD AND APPARATUS FOR DECODING IMAGES
    Publication number: 20130108184
    Abstract: Provided are a method and an apparatus for encoding images using template matching and a method and an apparatus for decoding images. The method for encoding the images can determine a template of an encoding target block and can determine a matching search target image for performing a matching search with the determined template among the recovered reference images. In addition, an optimum prediction block can be determined on the basis of the determined matching search target image and the template of the encoding target block.
    Type: Application
    Filed: July 8, 2011
    Publication date: May 2, 2013
    Inventors: Ha Hyun Lee, Sung Chang Lim, Hui Yong Kim, Se Yoon Jeong, Jong Ho Kim, Jin Ho Lee, Suk Hee Cho, Jin Soo Choi, Jin Woong Kim, Chie Teuk Ahn, Sung Jea Ko, Seung Won Jung, Yeo Jin Yoon
  • Method for transmitting and receiving data using pilot structure
    Patent number: 8432862
    Abstract: A method for efficiently transmitting and receiving data in a wireless access system and a pilot allocation structure for the same are provided. In one aspect of the present invention, a method for transmitting and receiving data in a wireless access system, the method including transmitting data using a resource block constructed taking into consideration channel estimation capabilities and data transfer rate, and receiving data using the resource block. Here, the resource block may have a 6×6 structure constructed with 6 OFDM symbols and 6 subcarriers, and one or more first pilot symbols may be allocated to prescribed OFDM symbols of a first subcarrier and a fifth subcarrier of the resource block. Moreover, the first pilot symbols may be allocated to the resource block at a predetermined allocation rate taking into consideration a number of transmit antennas.
    Type: Grant
    Filed: April 16, 2009
    Date of Patent: April 30, 2013
    Assignee: LG Electronics Inc.
    Inventors: Sung Ho Park, Jin Young Chun, Jin Soo Choi, Hyun Soo Ko, Bin Chul Ihm, Wook Bong Lee
  • Method of designing a multiplexing structure for resource allocation to support legacy system
    Patent number: 8427998
    Abstract: New multiplexing UL structures for supporting legacy system are provided. A 16m system of diversity mode can be multiplexed with 16e system in PUSC mode in FDM manner with the same tiles/permutation rules. A 16m system can be multiplexed with 16e system in AMC mode in FDM and/or TDM manner. The time length of multiplexed 16e PUSC packets and/or 16m packets can be extended to more than two sub-frames for UL coverage. A PRU for 16m system may consists of 16 sub-carriers by 6 OFDMA symbols, 18 sub-carriers by 6 OFDMA symbols, or 20 sub-carriers by 6 OFDMA symbols when FDM is used.
    Type: Grant
    Filed: April 20, 2009
    Date of Patent: April 23, 2013
    Assignee: LG Electronics Inc.
    Inventors: Jin Soo Choi, Han Gyu Cho, Jong Young Han, Jae Hoon Chung
  • Method and apparatus for transmitting pilot in a wireless communication system
    Patent number: 8406185
    Abstract: An apparatus for transmitting a pilot and method thereof are disclosed, by which a pilot can be efficiently transmitted in a wireless communication system. The present invention, in which the resource unit is transmitted by a base station in a wireless communication system, includes forming the resource unit including a plurality of pilot resource elements (REs) and a plurality of data resource elements, allocating a plurality of pilot pairs to have a prescribed subcarrier interval and a prescribed OFDM (orthogonal frequency division multiplexing) symbol interval within the resource unit, and transmitting the resource unit to a user equipment via multi-antenna, wherein each of a plurality of the pilot pairs includes individual pilots for two different streams or antennas.
    Type: Grant
    Filed: January 6, 2010
    Date of Patent: March 26, 2013
    Assignee: LG Electronics Inc.
    Inventors: Dong Cheol Kim, Han Gyu Cho, Wook Bong Lee, Jin Soo Choi
  • METHOD AND APPARATUS FOR ALLOCATING A SOUNDING CHANNEL IN A WIRELESS COMMUNICATION SYSTEM
    Publication number: 20130070623
    Abstract: There are provided a method and apparatus for allocating a sounding channel in a wireless communication system. A base station transmits a first sounding channel allocation data to allocate a first sounding channel for a first system to a first zone, and transmits a second sounding channel allocation data to allocate a second sounding channel for a second system other than the first system to a second zone. The first zone and the second zone are multiplexed by an FDM (Frequency Division Multiplexing) method, and the first sounding channel and the second sounding channel are allocated to a same OFDMA (Orthogonal Frequency Division Multiple Access) symbol. A channel response can be estimated accurately when a terminal for IEEE (Institute of Electrical and Electronics Engineers) 802.16m system and a terminal for IEEE 802.16e system coexist in a legacy support mode.
    Type: Application
    Filed: December 16, 2010
    Publication date: March 21, 2013
    Inventors: Jin Young Chun, Jin Soo Choi, Jin Sam Kwak, Wook Bong Lee
  • MOTION PICTURE ENCODING APPARATUS AND METHOD THEREOF
    Publication number: 20130070845
    Abstract: Provided is a video encoding apparatus, including a signal separator to separate a differential image block into a first domain and a second domain, based on a boundary line included in the differential image block, the differential image block indicating a difference between an original image and a prediction image with respect to the original image, a transform encoder to perform a transform encoding with respect to the first domain using a discrete cosine transform (DCT), a quantization unit to quantize an output of the transform encoding unit in a frequency domain, a space domain quantization unit to quantize the second domain in a space domain, and an entropy encoder to perform an entropy encoding using outputs of the quantization unit and the space domain quantization unit.
    Type: Application
    Filed: August 6, 2010
    Publication date: March 21, 2013
    Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Sung-Chang Lim, Hahyun Lee, Hui Yong Kim, Se Yoon Jeong, Sukhee Cho, Hae-Chul Choi, Jongho Kim, Jinho Lee, Jin Soo Choi, Jin Woo Hong, Dong-Gyu Sim, Seoung-Jun Oh, Gwang Hoon Park, Mun Churl Kim, Neung-Joo Hwang, Sea-Nae Park
  • Method of reporting channel state
    Patent number: 8400928
    Abstract: A method of reporting a channel state for a plurality of bands includes transmitting channel quality indicators (CQIs) for the respective bands, and transmitting CQI variation information, wherein the CQI variation information comprises CQI up/down information indicating whether the CQIs of the respective bands collectively increase or decrease and a CQI variation indicating a collective variation of the CQIs of the respective bands. Accordingly, waste of resources consumed for the CQIs can be reduced.
    Type: Grant
    Filed: September 4, 2008
    Date of Patent: March 19, 2013
    Assignee: LG Electronics Inc.
    Inventors: Jin Soo Choi, Jin Young Chun, Ae Ran Youn, Jae Hoon Chung, Eunjong Lee, Han Gyu Cho, Jong Young Han, Wookbong Lee, Hyung Ho Park
  • Method for determining cell identity in wireless communication system and apparatus therefor
    Patent number: 8396034
    Abstract: A method of determining a cell identity in a wireless communication system is disclosed. The present invention includes the steps of obtaining a segment ID and a sequence index from an SA-preamble (secondary advanced preamble) sequence received from a base station and determining the cell identity using the segment ID and the sequence index. In this case, the cell identity corresponds to one SA-preamble sequence and a cell identity adjacent to the cell identity corresponds to an SA-preamble sequence having a complex conjugate relation of the one SA-preamble sequence.
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: March 12, 2013
    Assignee: LG Electronics Inc.
    Inventors: Jin Soo Choi, Han Gyu Cho, Jin Sam Kwak
  • Method for transmitting VoIP packet
    Patent number: 8396070
    Abstract: A method for transmitting a voice over Internet protocol (VoIP) packet includes allocating a radio resource for VoIP packet transmission to a user, transitioning a VoIP service from a talk period, in which the VoIP packet is transmitted using the radio resource, to a silence period in which the VoIP packet is not transmitted, releasing the radio resource during the silence period, and transitioning the VoIP service to the talk period by reallocating the radio resource. Limited radio resources can be further effectively used.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: March 12, 2013
    Assignee: LG Electronics Inc.
    Inventors: Doo Hyun Sung, Hyung Ho Park, Jae Hoon Chung, Kyu Jin Park, Eun Jong Lee, Han Gyu Cho, Jin Soo Choi, Jong Young Han
  • METHOD AND DEVICE FOR PERFORMING RANGING
    Publication number: 20130058289
    Abstract: A method and device for performing a dedicated ranging for Machine To Machine (M2M) communication is provided. A M2M device receives a paging message indicating a dedicated ranging channel allocation from a base station. The dedicated ranging channel allocation is valid within a dedicated channel allocation timer.
    Type: Application
    Filed: August 29, 2012
    Publication date: March 7, 2013
    Applicant: LG ELECTRONICS INC.
    Inventors: Gi Won PARK, Jin Sam KWAK, Young Soo YUK, Jin Soo CHOI
  • APPARATUS FOR ENCODING AND DECODING IMAGE BY SKIP ENCODING AND METHOD FOR SAME
    Publication number: 20130058585
    Abstract: The present invention relates to an apparatus and method for encoding and decoding an image by skip encoding. The image-encoding method by skip encoding, which performs intra-prediction, comprises: performing a filtering operation on the signal which is reconstructed prior to an encoding object signal in an encoding object image; using the filtered reconstructed signal to generate a prediction signal for the encoding object signal; setting the generated prediction signal as a reconstruction signal for the encoding object signal; and not encoding the residual signal which can be generated on the basis of the difference between the encoding object signal and the prediction signal, thereby performing skip encoding on the encoding object signal.
    Type: Application
    Filed: May 6, 2011
    Publication date: March 7, 2013
    Applicant: Electronics and Telecommunications Research Instit
    Inventors: Sung Chang Lim, Ha Hyun Lee, Se Yoon Jeong, Hui Yong Kim, Suk Hee Cho, Jong Ho Kim, Jin Ho Lee, Jin Soo Choi, Jin Woong Kim, Chie Teuk Ahn, Dong Gyu Sim, Seoung Jun Oh, Gwang Hoon Park, Sea Nae Park, Chan Woong Jeon
  • Method for transmitting VoIP packet
    Patent number: 8391311
    Abstract: A method for transmitting a voice over Internet protocol (VoIP) packet includes allocating a radio resource for VoIP packet transmission to a user, transitioning a VoIP service from a talk period, in which the VoIP packet is transmitted using the radio resource, to a silence period in which the VoIP packet is not transmitted, releasing the radio resource during the silence period, and transitioning the VoIP service to the talk period by reallocating the radio resource. Limited radio resources can be further effectively used.
    Type: Grant
    Filed: August 13, 2008
    Date of Patent: March 5, 2013
    Assignee: LG Electronics Inc.
    Inventors: Doo Hyun Sung, Hyung Ho Park, Jae Hoon Chung, Kyu Jin Park, Eun Jong Lee, Han Gyu Cho, Jin Soo Choi, Jong Young Han
  • Method and apparatus for transmitting uplink control signal in wireless communication system
    Patent number: 8391230
    Abstract: A method and apparatus of transmitting an uplink control signal of a mobile station (MS) in a wireless communication system is provided. A mobile station (MS) receives resource allocation information of a first uplink control channel for transmitting an uplink synchronization signal and resource allocation information of a second uplink control channel. The MS allocates a first uplink control channel resource and a second uplink control channel resource to the first uplink control channel and the second uplink control channel respectively based on the resource allocation information of the first uplink control channel and the resource allocation information on the second uplink control channel and transmits an uplink control signal through at least one of the first uplink control channel and the second uplink control channel to a base station.
    Type: Grant
    Filed: November 16, 2010
    Date of Patent: March 5, 2013
    Assignee: LG Electronics Inc.
    Inventors: Jin Young Chun, Jin Sam Kwak, Jin Soo Choi, Bin Chul Ihm
  • METHOD AND APPARATUS FOR PERFORMING INTRA-PREDICTION USING ADAPTIVE FILTER
    Publication number: 20130039421
    Abstract: Provided is a method and apparatus for performing intra-prediction using an adaptive filter. The method for performing intra-prediction comprises the steps of: determining whether or not to apply a first filter for a reference pixel value on the basis of information of a neighboring block of a current block; applying the first filter for the reference pixel value when it is determined to apply the first filter; performing intra-prediction on the current block on the basis of the reference pixel value; determining whether or not to apply a second filter for a prediction value according to each prediction mode of the current block, which is predicted by the intra-prediction performance on the basis of the information of the neighboring block; and applying the second filter for the prediction value according to each prediction mode of the current block when it is determined to apply the second filter.
    Type: Application
    Filed: April 11, 2011
    Publication date: February 14, 2013
    Inventors: Jin Ho Lee, Hui Yong Kim, Se Yoon Jeong, Suk Hee Cho, Ha Hyun Lee, Jong Ho Kim, Sung Chang Lim, Jin Soo Choi, Jin Woong Kim, Chie Teuk Ahn
  • Permutation device and method having improved resource granularity for wireless communications
    Patent number: 8374614
    Abstract: A device and method for permuting subcarriers in a subframe which is divided into a plurality of frequency partitions in a wireless mobile communication system is disclosed. The method includes mapping, at a mobile station, physical resource units for localized resource allocation to a frequency partition of the plurality of frequency partitions in units of N_1 number of resource units, and physical resource units for distributed resource allocation to the frequency partition in units of N_d number of resource units, N_1 being different from N_d; and spreading, at the mobile station, subcarriers of the physical resource units for distributed resource allocation across the whole distributed resource allocations.
    Type: Grant
    Filed: July 1, 2009
    Date of Patent: February 12, 2013
    Assignee: LG Electronics Inc.
    Inventors: Jin Soo Choi, Han Gyu Cho, Bin Chul Ihm
  • METHOD AND APPARATUS FOR CONFIGURING FRAME IN WIRELESS COMMUNICATION SYSTEM INCLUDING RELAY STATION
    Publication number: 20130034030
    Abstract: A method and apparatus of communicating by a relay station a wireless communication system including a relay station is provided. The method include communicating with at least one of a base station and a user equipment through a frequency division duplex (FDD) uplink (UL) frame configured by the base station, the FDD UL frame including a UL relay zone including a plurality of UL subframes and a UL access zone including a plurality of UL subframes. The UL relay zone is a sector used for the relay station to transmit a signal to the base station, and the UL access zone is a sector used for the relay station to receive a signal from the user equipment. The UL relay zone is located before the UL access zone within the FDD UL frame.
    Type: Application
    Filed: April 21, 2011
    Publication date: February 7, 2013
    Applicant: LG ELECTRONICS INC.
    Inventors: Jin Young Chun, Jin Sam Kwak, Jin Soo Choi, Bin Chul Ihm, Wook Bong Lee
  • Image encoder and decoder using unidirectional prediction
    Patent number: 8363965
    Abstract: The present invention relates to an image encoding and decoding technique, and more particularly, to an image encoder and decoder using unidirectional prediction. The image encoder includes a dividing unit to divide a macro block into a plurality of sub-blocks, a unidirectional application determining unit to determine whether an identical prediction mode is applied to each of the plurality of sub-blocks, and a prediction mode determining unit to determine a prediction mode with respect to each of the plurality of sub-blocks based on a determined result of the unidirectional application determining unit.
    Type: Grant
    Filed: October 1, 2009
    Date of Patent: January 29, 2013
    Assignees: Electronics and Telecommunications Research Institute, Kwangwoon University Industry-Academic Collaboration Foundation, University-Industry Cooperation Group of Kyung Hee University
    Inventors: Hae Chul Choi, Se Yoon Jeong, Sung-Chang Lim, Jin Soo Choi, Jin Woo Hong, Dong Gyu Sim, Seoung-Jun Oh, Chang-Beom Ahn, Gwang Hoon Park, Seung Ryong Kook, Sea-Nae Park, Kwang-Su Jeong
  • Extended description to support targeting scheme, and TV anytime service and system employing the same
    Patent number: 8365224
    Abstract: The present research relates to description supporting a targeting scheme, more particularly, to an extended description structure supporting a targeting scheme and a TV-Anytime service providing method and system employing the same based on Moving Picture Experts Group 21 (MPEG-21) Usage Environment Description (UED) tools. The TV-Anytime service providing system employing the extended description structure includes a service providing apparatus for generating package metadata including user information and usage environment information; and a user device for acquiring the package metadata including user information and usage environment information from the service providing apparatus through diverse access networks.
    Type: Grant
    Filed: December 17, 2004
    Date of Patent: January 29, 2013
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Kyoung-Ro Yoon, Sun-Young Han, Hee-Kyung Lee, Jae-Gon Kim, Jin-Soo Choi, Jin-Woong Kim
  • Apparatus and method for injecting synchronized stream data in digital broadcasting environment
    Patent number: RE44192
    Abstract: An apparatus and method for injecting synchronized stream data into a Motion Picture Experts Group 2 (MPEG-2) video/audio transport stream for a digital data broadcasting service. The apparatus and method for injecting synchronized stream data calculate the injection time point of data access unit (DAU) that forms the synchronized stream data and injects DAU into the MPEG-2 video/audio transport stream based on the calculated injection time point so that the synchronized stream data could be presented smoothly in a receiver. The synchronized stream data injecting apparatus includes: an additional data storing unit, a synchronized stream data selection/establishment unit, a synchronized stream data analyzing unit, a transport stream analyzing unit, a synchronized stream data injection/management unit, a presentation time stamp re-stamping unit and a multiplexing unit.
    Type: Grant
    Filed: July 29, 2010
    Date of Patent: April 30, 2013
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Yong Ju Lee, Min-Sik Park, Ji-Hoon Choi, Jin Soo Choi, Jin Woong Kim