Patents by Inventor Ki-Hyoung Cho
Ki-Hyoung Cho 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: 11919520Abstract: A wheel slip control method for a vehicle is provided, and includes estimating equivalent inertia information of a driving system based on operation information of the driving system while a vehicle travels, determining whether the slip of a drive wheel occurs from the estimated equivalent inertia information of the driving system, determining whether the drive wheel is in an uneven wheel slip state where the slip occurs only in one of a left wheel and a right wheel of the drive wheel from a left wheel speed and a right wheel speed detected by a sensor, if it is determined that the slip of the drive wheel occurs, and controlling an operation of a braking device such that a braking force is applied to the vehicle wheel in which the slip occurs, if it is determined that the vehicle wheel is in the uneven wheel slip state.Type: GrantFiled: February 17, 2021Date of Patent: March 5, 2024Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Ji Won Oh, Jeong Soo Eo, Ki Mo Sohn, Lee Hyoung Cho
-
Patent number: 9538407Abstract: A method of receiving control information in a wireless communication system includes receiving position information for searching at least one downlink control channel, a downlink control channel carrying control information of at least one user equipment, receiving multiplexed downlink control channel in which a plurality of downlink control channels are sequentially multiplexed and sequentially searching the downlink control channel on the multiplexed downlink control channel according to the position information. The number of detection attempts to detect its own control information can be reduced.Type: GrantFiled: December 2, 2014Date of Patent: January 3, 2017Assignee: LG Electronics Inc.Inventors: So Yeon Kim, Min Seok Oh, Ki Hyoung Cho, Seung Hyun Kang, Ji Ae Seok, Ji Wook Chung, Young Seob Lee
-
Publication number: 20150109948Abstract: A method of receiving control information in a wireless communication system includes receiving position information for searching at least one downlink control channel, a downlink control channel carrying control information of at least one user equipment, receiving multiplexed downlink control channel in which a plurality of downlink control channels are sequentially multiplexed and sequentially searching the downlink control channel on the multiplexed downlink control channel according to the position information. The number of detection attempts to detect its own control information can be reduced.Type: ApplicationFiled: December 2, 2014Publication date: April 23, 2015Inventors: So Yeon Kim, Min Seok Oh, Ki Hyoung Cho, Seung Hyun Kang, Ji Ae Seok, Ji Wook Chung, Young Seob Lee
-
Patent number: 8929302Abstract: A method of receiving control information in a wireless communication system includes receiving position information for searching at least one downlink control channel, a downlink control channel carrying control information of at least one user equipment, receiving multiplexed downlink control channel in which a plurality of downlink control channels are sequentially multiplexed and sequentially searching the downlink control channel on the multiplexed downlink control channel according to the position information. The number of detection attempts to detect its own control information can be reduced.Type: GrantFiled: March 20, 2008Date of Patent: January 6, 2015Assignee: LG Electronics Inc.Inventors: So Yeon Kim, Min Seok Oh, Ki Hyoung Cho, Seung Hyun Kang, Ji Ae Seok, Ji Wook Chung, Young Seob Lee
-
Patent number: 8781465Abstract: A method of scanning neighboring base stations for measuring channel quality in a wireless communication system includes receiving, by a mobile station from a serving base station, information associated with at least one neighboring base station; transmitting, by the mobile station to the serving base station, a scanning request message to request an allocation of a scanning interval for scanning, the scanning request message including parameters associated with a requested scan duration, a requested interleaving interval, and a requested scan iteration, wherein the requested interleaving interval is interleaved between each scan; and receiving, by the mobile station from the serving base station, a scanning response message including an allowed scan duration parameter in response to the scanning request message, wherein the allowed scan duration parameter is set to zero to indicate that the request for the allocation of the scanning interval is denied.Type: GrantFiled: March 20, 2012Date of Patent: July 15, 2014Assignee: LG Electronics Inc.Inventors: Yong Ho Kim, Ki Hyoung Cho
-
Patent number: 8774799Abstract: A method of scanning neighboring base stations for measuring channel quality in a wireless communication system includes receiving information associated with at least one neighboring base station; transmitting a scanning request message including parameters related to a requested scan duration, a requested interleaving interval and a requested scan iteration; and receiving a scanning response message in response to the scanning request message, the scanning response message including parameters related to an allowed scan duration, an allowed interleaving interval, a scan report mode, and an allowed scan iteration, wherein the scan report mode, which indicates a channel quality measurement reporting method, is set to ‘00’ when the scan report mode indicates no report, set to ‘01’ when the scan report mode indicates a periodic report, and set to ‘10’ when the scan report mode indicates a event-triggered report.Type: GrantFiled: March 20, 2012Date of Patent: July 8, 2014Assignee: LG Electronics Inc.Inventors: Yong Ho Kim, Ki Hyoung Cho
-
Patent number: 8689088Abstract: A method for encoding data using a parity check matrix is disclosed. The method for encoding data using a parity check matrix comprises generating a fourth base matrix by applying a row permutation pattern and a column permutation pattern to rows and columns of a third base matrix, respectively, the third base matrix including a plurality of indexes, each of the plurality of indexes indicating a sub-matrix; generating the parity check matrix by replacing each index of the fourth base matrix with a corresponding sub-matrix; outputting an encoded bit stream by encoding an input bit stream using the generated parity check matrix; and permuting an order of sequences of the encoded bit stream according to an inverse of the column permutation pattern.Type: GrantFiled: March 27, 2008Date of Patent: April 1, 2014Assignee: LG Electronics Inc.Inventors: Young Seob Lee, Min Seok Oh, Ji Wook Chung, Sang Gook Kim, Ki Hyoung Cho
-
Patent number: 8533542Abstract: An interleaver provision method for providing a continuous length, an interleaving method, and a turbo-encoder thereof are disclosed. The interleaving method selects a basic interleaver having a proper length from among the basic interleaver set, which is predetermined to have the length represented by a multiple of the ARP fluctuation vector period. The interleaving method performs the dummy insertion and the pruning process to have the length acting as the basic-interleaver length, so that it can provide the ARP interleaver having a continuous length.Type: GrantFiled: October 24, 2007Date of Patent: September 10, 2013Assignee: LG Electronics Inc.Inventors: Seung Hyun Kang, Min Seok Oh, Ki Hyoung Cho, Young Seob Lee, Ji Wook Chung
-
Patent number: 8478268Abstract: A method of communicating data in a wireless communication system is disclosed. More specifically, a method discloses transmitting a request by a mobile subscriber station (MSS) to a network entity via a de-registration request message requesting the network entity to retain a preferred session information, and receiving a selected session information via a de-registration command response from the network entity.Type: GrantFiled: July 9, 2010Date of Patent: July 2, 2013Assignee: LG Electronics Inc.Inventors: Ki Hyoung Cho, Yong Ho Kim, Gi Seon Ryu
-
Patent number: 8443254Abstract: A method of encoding input data using a low density parity check (LDPC) code or decoding the encoded data is disclosed. Each index of a model matrix is expanded to an index matrix which includes two or more indexes. Each index included in the index matrix indicates a specific sub-matrix, and can be replaced with a corresponding sub-matrix to generate a parity check matrix.Type: GrantFiled: March 14, 2008Date of Patent: May 14, 2013Assignee: LG Electronics Inc.Inventors: Ji Wook Chung, Min Seok Oh, Ki Hyoung Cho, Seung Hyun Kang, Ji Ae Seok, Young Seob Lee, So Yeon Kim
-
Patent number: 8438459Abstract: An encoding and decoding method and apparatus. is disclosed. The method and apparatus improves encoding and decoding performance without using a large memory capacity and also reduces the complexity of hardware for implementation. According to the method, an encoded signal is received from a transmitting side, and the received signal is decoded using the parity check matrix. The parity check matrix includes layers where nonzero elements of a specific number or layers do not overlap in column direction.Type: GrantFiled: December 22, 2005Date of Patent: May 7, 2013Assignee: LG Electronics Inc.Inventors: Ki Hyoung Cho, Min Seok Oh, Kyu Hyuk Chung, Young Seob Lee
-
Patent number: 8359506Abstract: Methods of transmitting data using a plurality of hybrid automatic repeat request (HARQ) process channels sequentially is disclosed. One of the methods of transmitting data through a plurality of HARQ process channels including a first channel and a second channel includes adding offset to a retransmission data block if the first channel which will transmit the retransmission data block is prescheduled (S702) by another data block, the offset representing the difference in a transmission timing point between the second channel in which positive acknowledgement (ACK) signal has been received (S701) and the first channel; transmitting the retransmission data block through the second channel; and transmitting a data block corresponding to the second channel through the first channel.Type: GrantFiled: March 12, 2008Date of Patent: January 22, 2013Assignee: LG Electronics Inc.Inventors: Ji Ae Seok, Min Seok Oh, Ki Hyoung Cho, Young Seob Lee, So Yeon Kim, Ji Wook Chung, Seung Hyun Kang
-
Patent number: 8356227Abstract: A method of encoding data using a parity check matrix, a method of decoding encoded data, and a data retransmission method using the same are disclosed. A data retransmission method in a communication system includes transmitting a codeword encoded by a first parity check matrix corresponding to a first coding rate, among at least two parity check matrixes corresponding to different coding rates, receiving NACK from the receiver in response to the codeword, and transmitting parity bits encoded by some of the second parity check matrix corresponding to a second coding rate, among the at least two parity check matrixes, to the receiver.Type: GrantFiled: June 15, 2007Date of Patent: January 15, 2013Assignee: LG Electronics Inc.Inventors: Ji Wook Chung, Min Seok Oh, Ki Hyoung Cho, Ji Ae Seok, Young Seob Lee, So Yeon Kim
-
Patent number: 8320908Abstract: Scanning neighboring base stations in a wireless access system is provided. In one embodiment, a method of scanning neighboring base stations for assessing channel quality includes receiving from a serving base station information associated with at least one neighboring base station, and transmitting a scanning request message from a mobile subscriber station to the serving base station, wherein the scanning request message comprises a requested scan duration and a requested scan iteration, the requested scan iteration being associated with a requested number of iterations of the scanning of the at least one neighboring base station. The method also includes receiving a scanning response message from the serving base station, wherein the scanning response message comprises an allowed scan duration and an allowed scan iteration, the allowed scan iteration being associated with an allowed number of iterations of the scanning of the at least one neighboring base station.Type: GrantFiled: July 16, 2010Date of Patent: November 27, 2012Assignee: LG Electronics Inc.Inventors: Yong Ho Kim, Ki Hyoung Cho
-
Patent number: 8312338Abstract: A data transmitting and receiving method is disclosed. In transmitting a response signal for a transmission signal from at least one transmitter, the present invention includes receiving at least one data block from the at least one transmitter, the at least one data block grouped into at least one group and then transmitted by the at least one transmitter, checking whether each data block is successfully received for the at least one data block belonging to the corresponding group per the group, selecting a transmission scheme of transmitting a response signal instructing a presence or non-presence of successful reception of the each data block to the at least one transmitter, and transmitting a response signal for the each data block to the at least one transmitter by the selected response signal transmission scheme. Hence, the present invention reduces overhead of control information necessary for data transmission.Type: GrantFiled: February 4, 2008Date of Patent: November 13, 2012Assignee: LG Electronics Inc.Inventors: Ji Ae Seok, Min Seok Oh, Ki Hyoung Cho, Young Seob Lee, So Yeon Kim, Ji Wook Chung, Seung Hyun Kang, Wook Bong Lee
-
Publication number: 20120269079Abstract: A method of scanning neighboring base stations for measuring channel quality in a wireless communication system includes receiving, by a mobile station from a serving base station, information associated with at least one neighboring base station; transmitting, by the mobile station to the serving base station, a scanning request message to request an allocation of a scanning interval for scanning, the scanning request message including parameters associated with a requested scan duration, a requested interleaving interval, and a requested scan iteration, wherein the requested interleaving interval is interleaved between each scan; and receiving, by the mobile station from the serving base station, a scanning response message including an allowed scan duration parameter in response to the scanning request message, wherein the allowed scan duration parameter is set to zero to indicate that the request for the allocation of the scanning interval is denied.Type: ApplicationFiled: March 20, 2012Publication date: October 25, 2012Applicant: LG ELECTRONICS INC.Inventors: Yong Ho KIM, Ki Hyoung CHO
-
Patent number: 8286062Abstract: A method of encoding data using low density parity check (LDPC) code defined by a m×n parity check matrix is disclosed. More specifically, the method includes encoding input source data using the parity check matrix, wherein the parity check matrix comprises a plurality of z×z sub-matrices of which row weights and column weights are ‘0’ or ‘1’.Type: GrantFiled: March 28, 2012Date of Patent: October 9, 2012Assignee: LG Electronics Inc.Inventors: Min Seok Oh, Ki Hyoung Cho, Kyu-Hyuk Chung
-
Patent number: 8276050Abstract: A method of encoding data using low density parity check (LDPC) code defined by a m×n parity check matrix is disclosed. More specifically, the method includes encoding input source data using the parity check matrix, wherein the parity check matrix comprises a plurality of z×z sub-matrices of which row weights and column weights are ‘0’ or ‘1’.Type: GrantFiled: March 30, 2009Date of Patent: September 25, 2012Assignee: LG Electronics Inc.Inventors: Min Seok Oh, Ki Hyoung Cho, Kyu Hyuk Chung
-
Publication number: 20120185746Abstract: A method of encoding data using low density parity check (LDPC) code defined by a m×n parity check matrix is disclosed. More specifically, the method includes encoding input source data using the parity check matrix, wherein the parity check matrix comprises a plurality of z×z sub-matrices of which row weights and column weights are ‘0’ or ‘1’.Type: ApplicationFiled: March 28, 2012Publication date: July 19, 2012Applicant: LG ELECTRONICS INC.Inventors: Min Seok Oh, Ki Hyoung Cho, Kyu-Hyuk Chung
-
Publication number: 20120178446Abstract: A method of scanning neighboring base stations for measuring channel quality in a wireless communication system includes receiving information associated with at least one neighboring base station; transmitting a scanning request message including parameters related to a requested scan duration, a requested interleaving interval and a requested scan iteration; and receiving a scanning response message in response to the scanning request message, the scanning response message including parameters related to an allowed scan duration, an allowed interleaving interval, a scan report mode, and an allowed scan iteration, wherein the scan report mode, which indicates a channel quality measurement reporting method, is set to ‘00’ when the scan report mode indicates no report, set to ‘01’ when the scan report mode indicates a periodic report, and set to ‘10’ when the scan report mode indicates a event-triggered report.Type: ApplicationFiled: March 20, 2012Publication date: July 12, 2012Applicant: LG ELECTRONICS INC.Inventors: Yong Ho KIM, Ki Hyoung CHO