Patents by Inventor Min-Goo Kim

Min-Goo Kim 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).

  • Publication number: 20080198792
    Abstract: A channel coding and multiplexing apparatus and method in a CDMA communication system is disclosed. In the channel coding and multiplexing apparatus, each of a number of radio frame matchers (equal in number or greater than the number of transport channels) has a radio frame segmenter and segments each of transport channel frames that may have different transmission time intervals to radio frames. A multiplexer multiplexes the radio frames to form a serial data frame.
    Type: Application
    Filed: April 22, 2008
    Publication date: August 21, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Beong-Jo KIM, Se-Hyoung KIM, Min-Goo KIM, Soon-Jae Choi, Young-Hwan LEE
  • Publication number: 20080178064
    Abstract: A device and method for rate matching channel-encoded symbols in a data communication system. The rate matching device and method can be applied to a data communication system which uses one or both of a non-systematic code (such as a convolutional code or a linear block code) and a systematic code (such as a turbo code). In one aspect, the rate matching device includes a plurality of rate matching blocks, the number of the rate matching blocks being equal to a reciprocal of a coding rate of a channel encoder. The rate matching device can rate match the symbols encoded with a non-systematic code or the symbols encoded with a systematic code, by changing initial parameters including the number of input symbols, the number of output symbols, and the puncturing or repetition pattern determining parameters.
    Type: Application
    Filed: May 14, 2007
    Publication date: July 24, 2008
    Inventors: Min-Goo Kim, Beong-Jo Kim, Se-Hyoung Kim, Soon-Jae Choi, Young-Hwan Lee
  • Patent number: 7400896
    Abstract: A transmission and reception apparatus and method for use in a wireless communication system, and an apparatus and method for adaptively transmit and receive a signal according to channel state in a wireless communication system. An apparatus for adaptively performing transmission according to a state of a channel transmitted from a transmitter to at least one receiver includes a signal to interference ratio estimator for estimating a signal to interference ratio of the channel using a signal transmitted from the at least one receiver; and an adaptive transmitter for transmitting data to the at least one receiver on a basis of the estimated signal to interference ratio.
    Type: Grant
    Filed: September 2, 2005
    Date of Patent: July 15, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kwang-Man Ok, Chung-Gu Kang, Min-Goo Kim, Wi-Sang Rho
  • Publication number: 20080153440
    Abstract: A method and apparatus for receiving data using multiple antennas in a communication system are provided. A received signal-combining scheme is determined according to the strength of an interference signal included in the signals received from the antennas. The signals received from the antennas are combined according to the determined received signal-combining scheme. In this manner, the method and apparatus adaptively use a received data-combining scheme according to the channel condition, thereby ensuring optimal reception performance.
    Type: Application
    Filed: December 20, 2007
    Publication date: June 26, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD
    Inventors: Jong-Hun Rhee, Min-Goo Kim, Young-Mo Gu
  • Publication number: 20080144752
    Abstract: Method and Apparatus for controlling combining coefficients of multiple receive antennas according to the channel conditions in a mobile communication system, to improve data restoration performance. A mobile station detects preamble, pilot and data from a signal received from a base station via the multiple receive antennas, measures a channel correlation from the detected preamble, classifies time-domain/frequency-domain intervals having a channel correlation exceeding a predetermined threshold as calculation regions, and calculates MMSE coefficients for the calculation regions. In this way, the mobile station finds the optimal coefficients for combining the signal received via the multiple receive antennas, thereby optimizing the reception performance.
    Type: Application
    Filed: November 27, 2007
    Publication date: June 19, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Huigiang Zhou, Jong-Hun Rhee, Min-Goo Kim, Sung-Soo Kim
  • Patent number: 7386001
    Abstract: A channel coding and multiplexing apparatus and method in a CDMA communication system is disclosed. In the channel coding and multiplexing apparatus, each of a number of radio frame matchers (equal in number or greater than the number of transport channels) has a radio frame segmenter and segments each of transport channel frames that may have different transmission time intervals to radio frames. A multiplexer multiplexes the radio frames to form a serial data frame.
    Type: Grant
    Filed: June 26, 2000
    Date of Patent: June 10, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Beong-Jo Kim, Se-Hyoung Kim, Min-Goo Kim, Soon-Jae Choi, Young-Hwan Lee
  • Patent number: 7379477
    Abstract: Disclosed are an apparatus and a method for efficiently transmitting a broadcasting channel by means of cyclic delay diversity in an OFDM mobile communication system. The method comprises the steps of setting each transmitter to have different delay values, the transmitter providing a service to adjacent service areas, generating OFDM signals including the broadcasting data by said each transmitter, delaying the OFDM signals by means of the different delay values, and transmitting the delayed OFDM signals by means of each transmitting apparatus.
    Type: Grant
    Filed: June 10, 2005
    Date of Patent: May 27, 2008
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Hyun-Seok Oh, Hee-Jin Roh, Sung-Soo Kim, Min-Goo Kim
  • Patent number: 7373582
    Abstract: An apparatus and method for turbo decoding using a variable window size. A control logic block receives information about a code rate of received data bits and a data block size, adjusts a window size according to the code rate information, and computes an initial delay. Delta metric blocks compute delta metrics from input data bits of the block size, wherein the delta metrics represent a transition probability for a path from a state to another state, respectively. An alpha metric block receives a delta metric in synchronization with the initial delay, and computes an alpha metric representing a forward state transition probability in each state. One or more beta metric blocks receive delta metrics according to the adjusted window size, and compute beta metrics representing a backward state transition probability in each state, respectively.
    Type: Grant
    Filed: May 24, 2005
    Date of Patent: May 13, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung-Jin Park, Min-Goo Kim, Soon-Jae Choi
  • Patent number: 7366272
    Abstract: There is provided a device and method for transmitting packet data in a mobile communication system. A sub-code generator generates a plurality of sub-codes with the same or different code rates for the input of a PLP (Physical Layer Packet) information bit stream. A controller determines a minimum data rate by which the number of the modulation symbols of a sub-code generated by a predetermined modulation method is equal to or greater than the number of transmittable modulation symbols for each time period. A symbol pruner prunes part of the modulation symbols of the sub-code to make the number of the modulation symbols of the sub-code equal to the number of transmittable modulation symbols for the time period, if the number of the modulation symbols of the sub-code is greater than the number of transmittable modulation symbols for the time period.
    Type: Grant
    Filed: October 22, 2001
    Date of Patent: April 29, 2008
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Min-Goo Kim, Sang-Hyuck Ha
  • Patent number: 7359357
    Abstract: A method and apparatus for transmitting and receiving a broadcast service in a mobile communication system which outer-codes frames for a plurality of broadcast services and Time Domain Multiplex (TDM)-transmits the outer-coded frames. A transmitter transmits a broadcast parameter message comprising information indicating a specific sub-buffer in which respective broadcast services are stored. A receiver for receiving the broadcast parameter message from the transmitter, and maps the sub-buffer to a corresponding sub-block mask based on the broadcast parameter message. The transmitter TDM-transmits the frames for the plurality of broadcast services per sub-block. The receiver selectively receives frames for a desired broadcast service using the sub-block mask and decodes the selectively received frames.
    Type: Grant
    Filed: March 18, 2005
    Date of Patent: April 15, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jong-Hun Rhee, Su-Yean Kim, Min-Goo Kim, Beom-Sik Bae
  • Patent number: 7349494
    Abstract: A method and apparatus for deshuffling received shuffled data in a communication system supporting multi-level modulation. A transmitter encodes information bits and shuffles code symbols so that systematic symbols having a relatively high priority are disposed at high-transmission reliability positions and parity symbols having a relatively low priority are disposed at low-transmission reliability positions in a modulation symbol. A receiver demodulates received data and outputs a modulation symbol having a plurality of code symbols, stores the code symbols separately as systematic symbols and parity symbols in corresponding memory areas according to a deshuffling order corresponding to the shuffling, reads the stored code symbols, decodes the stored code symbols at a predetermined code rate, and thus outputs an packet.
    Type: Grant
    Filed: September 29, 2003
    Date of Patent: March 25, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Nam-Yul Yu, Sang-Hyuck Ha, Min-Goo Kim
  • Patent number: 7340008
    Abstract: A method and apparatus for mapping a stream of bits output from an encoder to a stream of bits for 2m-ary modulation. The method and apparatus divides the stream of bits from the encoder into a first period and a second period. The first period includes bits with higher priority in the stream of the bits output from the encoder, and the second period includes bits with lower priority. The method and apparatus maps the bits existing in the first period to bit positions with higher reliability in a stream of m bits representing each of the bits for 2m-ary modulation, and maps the bits existing in the second period to bit positions with lower reliability in the stream of m bits.
    Type: Grant
    Filed: December 22, 2003
    Date of Patent: March 4, 2008
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Min-Goo Kim, Sang-Hyuck Ha, Seong-Woo Ahn
  • Publication number: 20080037413
    Abstract: A method and an apparatus for improving power efficiency of a User Equipment (UE) by using channel state information between a Node B and the UE and power headroom information of the UE in a mobile communication system. The method includes acquiring power information in relation to transmission powers of UEs; arranging the UEs in a sequence based on the power information; determining, for each UE according to the arranged sequence, whether a first reception power of a Node B exceeds a second reception power; allocating a resource area including partially consecutive sub-carriers to at least one corresponding UE when the first reception power exceeds the second reception power; allocating a resource area including entirely consecutive sub-carriers to at least one corresponding UE when the first reception power does not exceed the second reception power; and transmitting resource allocation information indicating the allocated resource area to the each UE.
    Type: Application
    Filed: August 10, 2007
    Publication date: February 14, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young Mo Gu, Min-Goo Kim
  • Patent number: 7327714
    Abstract: An apparatus and a method are provided for improving reception reliability for control channels by detecting time division multiple (TDM) frames transmitted through the control channels in a TDM mobile communication system. The apparatus and method include receiving the frame through the forward control channel and performing a cyclic redundancy checking (CRC) with respect to the frame, thereby outputting a first error detection bit, measuring reception power for the frame, calculating a first path metric when decoding a channel of the frame, estimating a second path metric by using the first path metric and the reception power, and outputting a second error detection bit by comparing the second path metric with a predetermined threshold value, and creating and outputting a frame quality bit for detecting validity of the frame based on the first and second error detection bits.
    Type: Grant
    Filed: June 2, 2005
    Date of Patent: February 5, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hee-Jin Roh, Min-Goo Kim
  • Publication number: 20080008155
    Abstract: Provided is a method and apparatus for decoding a Multi-Protocol Encapsulation Forward Error Correction (MPE-FEC) frame in a Digital Video Broadcasting-Handheld (DVB-H) system. Packet Identifier (PID) filtering is performed on a Transport Stream (TS) packet received via a wireless network to detect a TS packet, and a table ID is detected from header information of the section data to identify the section data type. If the section data is an MPE section, frame buffering is performed. If there is a remaining portion in the data region after storage of an IP datagram of the last MPE section, zero-padding is performed on the remaining portion. If the section data is an MPE-FEC section, frame buffering is performed on parity data extracted from the MPE-FEC section.
    Type: Application
    Filed: August 18, 2006
    Publication date: January 10, 2008
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Jung-Wook Yoon, Ji-Won Ha, Min-Goo Kim, Hyun-Seok Oh
  • Publication number: 20070275666
    Abstract: An apparatus and method for detecting channel quality in a mobile communication system are provided. The method includes detecting a channel quality of a first channel quality detection period using a reference value of a reference signal; determining whether a reference value can be measured in a second channel quality detection period being one of a plurality of channel quality detection periods following the first channel quality detection period; and detecting a channel quality of the second channel quality detection period according to the determination.
    Type: Application
    Filed: May 22, 2007
    Publication date: November 29, 2007
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae-Yong Lee, Kang-Gyu Lee, Joong-Ho Jeong, Min-Goo Kim
  • Patent number: 7302012
    Abstract: An apparatus and method for soft-combining demodulated symbols in a mobile communication system. In the mobile communication system, a transmitting apparatus modulates symbols in different modulation schemes and a receiving apparatus demodulates the modulation symbols in correspondence with the modulation schemes. The soft symbol combining apparatus includes an RWF calculator, an RWF controller, and a soft symbol controller. The RWF calculator calculates an energy of a modulation symbol from each of the modulation schemes and determines relative ratios of the energies to be RWFs for the modulation schemes. The RWF controller multiplies soft metrics of the demodulated soft symbols by the RWFs. Finally, the soft symbol controller combines the multiplied soft metrics.
    Type: Grant
    Filed: November 19, 2002
    Date of Patent: November 27, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Min-Goo Kim, Sang-Hyuck Ha
  • Patent number: 7302620
    Abstract: A device for sequentially storing input bit symbols of a given interleaver size N in a memory at an address from 0 to N?1 and reading the stored bit symbols from the memory. The device comprises a look-up table for providing a first variable m and a second variable J satisfying the equation N=2m×J; and an address generator for generating a read address depending on the first and second variables m and J provided from the look-up table. The read address is determined by 2m(K mod J)+BROm(K/J), where K (0?K?(N?1)) denotes a reading sequence, BROm(y) is the bit-reversed m-bit value of y and / is a function in which a quotient of K divided by d is obtained, the quotient being an integer.
    Type: Grant
    Filed: October 28, 2004
    Date of Patent: November 27, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Min-Goo Kim
  • Publication number: 20070230387
    Abstract: An apparatus for receiving and processing a broadcast signal in a mobile broadcasting terminal is provided. A preprocessor receives a broadcast signal, converts the broadcast signal into a baseband signal, and then performs OFDM demodulation, Viterbi decoding, and convolutional deinterleaving thereon. A first Reed-Solomon (RS) decoder RS-decodes the signal output from the preprocessor, and outputs a Transport Stream (TS) packet. A checker checks Cyclic Redundancy Check (CRC) of the TS packet. A datagram extractor extracts a datagram having a good CRC result. A datagram controller receives the datagram having a good CRC result and outputs the received datagram to an application controller. The application controller decodes the broadcast data using the datagram received from the datagram controller and provides the decoded broadcast data to a user.
    Type: Application
    Filed: February 5, 2007
    Publication date: October 4, 2007
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hee-Jin Roh, Min-Goo Kim, Sang-Jin Lee
  • Patent number: 7263637
    Abstract: A P-BRO interleaver and a method for optimizing parameters according to an interleaver size for the P-BRO interleaver. The P-BRO interleaver sequentially, by columns, arranges an input data stream of size N in a matrix having 2m rows and (J?1) columns, and R rows in a Jth column, P-BRO interleaves the arranged data, and reads the interleaved data by rows.
    Type: Grant
    Filed: February 6, 2003
    Date of Patent: August 28, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-Hyuck Ha, Min-Goo Kim