Patents by Inventor Chang Soon Park

Chang Soon Park 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 determining threshold for symbol detection
    Patent number: 9350579
    Abstract: A method of determining a threshold for symbol detection, includes receiving a most previously input sample value and a result of detecting a most previous symbol, and determining the threshold for the symbol detection of a currently input sample value based on the most previously input sample value and the result of detecting the most previous symbol.
    Type: Grant
    Filed: May 19, 2014
    Date of Patent: May 24, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Joon Seong Kang, Chang Soon Park, Young Jun Hong
  • Method and node for preventing collision between networks communicating based on CSMA/CA
    Patent number: 9325635
    Abstract: A method and a target node for preventing collisions between networks communicating based on a carrier sense multiple access/collision avoidance (CSMA/CA) scheme, are provided. The method includes synchronizing an object network with a neighboring network. The method further includes allocating, to the object network, a slot index based on a number of the networks, and a contention window (CW) size. The method further includes setting, for the object network, a back-off counter value based on the CW size. The method further includes reducing the back-off counter value based on a channel state of the object network, and the slot index. The method further includes transmitting data related to the neighboring network based on the back-off counter value.
    Type: Grant
    Filed: November 13, 2012
    Date of Patent: April 26, 2016
    Assignees: Samsung Electronics Co., Ltd., Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Young Soo Kim, Chang Soon Park, Young Jun Hong, Yongok Kim, Minchae Jung, Sooyong Choi, Kyuho Hwang
  • METHOD AND APPARATUS FOR STABLE SIGNAL DEMODULATION IN COMMUNICATION SYSTEM
    Publication number: 20160087760
    Abstract: A method and apparatus provide for stable signal demodulation in a communication system. The method and apparatus includes including detecting an erroneous demodulation value based on backward-demodulation of received signals, using a difference between a received signal to be demodulated and a preceding signal of the received signals and correcting the error demodulation value. Alternatively, backward-demodulation is used to confirm received signals.
    Type: Application
    Filed: December 2, 2015
    Publication date: March 24, 2016
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ui Kun KWON, Chang Soon PARK, Chi Sung BAE, Joon Seong KANG, Sang Joon KIM, Seung Keun YOON, Chang Mok CHOI
  • Ultra low power super-regenerative receiver and method thereof
    Patent number: 9231629
    Abstract: An ultra low power super-regenerative receiver is provided. The ultra low power super-regenerative receiver includes a bit synchronizer configured to use a value sampled from a signal output from a super-regenerative oscillator to estimate a pulse-level position having a maximum amplitude value in a single period of a received symbol, a frame synchronizer configured to combine a plurality of pulse-level positions determined based on the estimated pulse-level position, and detect a predetermined bit sequence using the plurality of pulse-level positions combined, the frame synchronizer being configured to perform frame synchronization, and a data detector configured to detect data using the plurality of pulse-level positions determined after the frame synchronization is completed.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: January 5, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang Soon Park, Young Jun Hong, Joon Seong Kang
  • Method and apparatus for stable signal demodulation in communication system
    Patent number: 9231735
    Abstract: A method and apparatus provide for stable signal demodulation in a communication system. The method and apparatus includes including detecting an erroneous demodulation value based on backward-demodulation of received signals, using a difference between a received signal to be demodulated and a preceding signal of the received signals and correcting the error demodulation value. Alternatively, backward-demodulation is used to confirm received signals.
    Type: Grant
    Filed: February 4, 2014
    Date of Patent: January 5, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ui Kun Kwon, Chang Soon Park, Chi Sung Bae, Joon Seong Kang, Sang Joon Kim, Seung Keun Yoon, Chang Mok Choi
  • Method and apparatus for adaptively setting threshold for signal demodulation
    Patent number: 9172415
    Abstract: Provided is a method and apparatus to adaptively set a threshold for signal demodulation. The apparatus and the method include adaptively setting a threshold to demodulate a currently received symbol based on the demodulation value of a previously received symbol based on a comparison value. The comparison value is obtained by comparing a number of previously received symbols having a demodulation value of “0” and a number of currently received symbols having a demodulation value of “1”.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: October 27, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ui Kun Kwon, Chang Soon Park, Chi Sung Bae, Joon Seong Kang, Sang Joon Kim, Seung Keun Yoon, Chang Mok Choi
  • RECEPTION APPARATUS HAVING DUAL RECEPTION STRUCTURE, AND METHOD OF RECEIVING SIGNAL USING DUAL RECEPTION STRUCTURE
    Publication number: 20150288396
    Abstract: A reception apparatus having a dual reception structure includes a first receiver having a first quality (Q) factor and configured to receive a signal in a predetermined band in response to the first receiver being selected by a reception controller; a second receiver having a second Q factor greater than the first Q factor and configured to receive the signal in the predetermined band in response to the second receiver being selected by the reception controller; and a reception controller configured to select one of the first receiver and the second receiver based on interference information associated with an adjacent band adjacent to the predetermined band.
    Type: Application
    Filed: April 6, 2015
    Publication date: October 8, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seok Ju Yun, Ui Kun Kwon, Seong Joong Kim, Chang Soon Park, Young Jun Hong, Hyo Sun Hwang
  • Apparatus and method for detecting bit sequence robustly to change of DC offset in OOK receiver
    Patent number: 9146804
    Abstract: A method of detecting a bit sequence, includes estimating parameters to be used to determine a probability distribution of a present signal in each of states of a present time, and calculating metrics of the respective states based on the parameters. The method further includes selecting survivor states from the states based on the metrics, and detecting the bit sequence based on a path to each of the survivor states.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: September 29, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang Soon Park, Young Jun Hong, Joon Seong Kang, Jong Han Kim
  • METHOD AND APPARATUS FOR CONTROLLING INTERLEAVING DEPTH
    Publication number: 20150263766
    Abstract: A method and an apparatus for controlling an interleaving depth are provided. The interleaving depth controlling method includes performing a modulo operation on an interleaving depth selected to be less than or equal to a maximum interleaving depth and a total number of codewords to obtain a number of remaining codewords; and comparing the total number of the codewords to the interleaving depth, when the number of the remaining codewords excludes “0”, to control the interleaving depth.
    Type: Application
    Filed: March 13, 2015
    Publication date: September 17, 2015
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Chang Soon PARK, Youngsoo KIM, Jaewook SHIM, Young Jun HONG, Hyosun HWANG
  • METHOD AND APPARATUS FOR ENCODING AND DECODING PACKET
    Publication number: 20150264598
    Abstract: A method of a transmitter transmitting a packet encoded by applying a coding scheme based on a wireless channel environment to a receiver, and a method of the receiver detecting the coding scheme applied to the encoded packet and decoding the packet, in which the transmitter applies a spreading factor corresponding to the coding scheme to a preamble of the packet, and the receiver decodes the packet by detecting the coding scheme using the preamble.
    Type: Application
    Filed: March 16, 2015
    Publication date: September 17, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chang Soon Park, Young Jun Hong, Youngsoo Kim, Hyosun Hwang
  • LOW COMPLEXITY HIGH-ORDER SYNDROME CALCULATOR FOR BLOCK CODES AND METHOD OF CALCULATING HIGH-ORDER SYNDROME
    Publication number: 20150263764
    Abstract: A high-order syndrome calculator includes a serial-to-parallel converter configured to convert serial bit sequences received from a transmitter to a parallel multi-stream, an exclusive OR (XOR) operator configured to perform an XOR operation on bit values of the multi-stream, a zero interpolator configured to insert zero values between the bits on which the XOR operation is performed, and a linear feedback shift register configured to calculate a high-order syndrome value based on a coefficient of a remainder obtained by dividing, by a primitive polynomial, a polynomial generated from the multi-stream in which the zero values are inserted.
    Type: Application
    Filed: September 29, 2014
    Publication date: September 17, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chang Soon Park, Hyo Sun Hwang, Young Jun Hong
  • Low power wireless communication apparatuses and method thereof
    Patent number: 9036522
    Abstract: Provided are low-power wireless communication apparatuses and a method thereof. A hub may receive a beacon signal from a neighboring hub that is within a predetermined area from the hub, and control an operation of a node served by the hub based on information received from the neighboring hub.
    Type: Grant
    Filed: January 27, 2012
    Date of Patent: May 19, 2015
    Assignees: Samsung Electronics Co., Ltd., Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Chang Soon Park, Young Soo Kim, Tae In Hyon, Minchae Jung, Kyuho Hwang, Sooyong Choi
  • Main hub, sub hub, and sensor node communicating in wireless body area network (WBAN) including at least one sub hub, and communication method thereof
    Patent number: 9014094
    Abstract: A main hub, a sub hub, and a sensor node communicating in a wireless body area network (WBAN) including at least one sub hub, and a communication method thereof, are provided. A communication method of the main hub, includes assigning a beacon slot to the sub hub. The method further includes receiving, from the sub hub, a beacon signal based on the beacon slot. The method further includes verifying whether the sub hub includes data to be transmitted to the main hub based on the beacon signal. The method further includes receiving, from the sub hub, the data based on a result of the verification.
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: April 21, 2015
    Assignees: Samsung Electronics Co., Ltd., Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Young Soo Kim, Chang Soon Park, Tae In Hyon, Hyo Sun Hwang, Sung Soo Park, Seok Won Lee, Hyung Sik Ju, Dae Sik Hong
  • Ultra-low power super-regenerative receiver and method thereof
    Patent number: 9014310
    Abstract: An ultra-low power super-regenerative receiver and method thereof are provided. The ultra-low power super-regenerative receiver includes a quench waveform generator configured to generate a quench waveform. The ultra-low power super-regenerative receiver further includes a super-regenerative oscillator configured to generate an oscillation signal based on the quench waveform. The ultra-low power super-regenerative receiver further includes a bandwidth adjustor configured to control the quench waveform based on a bandwidth of a signal received by the ultra-low power super-regenerative receiver, to dynamically adjust a bandwidth of the oscillation signal.
    Type: Grant
    Filed: August 17, 2012
    Date of Patent: April 21, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang Soon Park, Young Jun Hong, Joon Seong Kang
  • Multi-user MIMO communication system and method using feedback information
    Patent number: 9014019
    Abstract: The effective performance metric and achieving method of a multi-user multiple-input multiple-output (MU-MIMO) communication system are provided. A number of feedback bits of channel information may be determined based on an effective spectral efficiency (ESE). The ESE may correspond to a metric of the throughput performance with respect to a total radio resource including an uplink radio resource and a downlink radio resource. User-scheduling may be based on the feedback information that is based on the ESE, and thus, the throughput performance of the communication system may be enhanced.
    Type: Grant
    Filed: April 22, 2011
    Date of Patent: April 21, 2015
    Assignees: Samsung Electronics Co., Ltd., Korea University Industrial & Academic Collaboration Foundation
    Inventors: Sung-Jin Kim, Chang-Soon Park, Hong-Shuan Yang
  • Method and device for detecting received signal using median absolute deviation
    Patent number: 9001938
    Abstract: A method of detecting a received signal, includes determining correlation between a received signal in a predetermined signal interval and training symbols, and determining a median absolute deviation (MAD) of the received signal in a predetermined reference interval. The method further includes detecting a presence of the received signal based on the correlation and the MAD.
    Type: Grant
    Filed: August 1, 2013
    Date of Patent: April 7, 2015
    Assignees: Samsung Electronics Co., Ltd., Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Jong Han Kim, Un Sun Cho, Young Jun Hong, Joon Seong Kang, Jae Seok Kim, Chang Soon Park
  • METHOD AND APPARATUS FOR DETERMINING THRESHOLD FOR SYMBOL DETECTION
    Publication number: 20150043682
    Abstract: A method of determining a threshold for symbol detection, includes receiving a most previously input sample value and a result of detecting a most previous symbol, and determining the threshold for the symbol detection of a currently input sample value based on the most previously input sample value and the result of detecting the most previous symbol.
    Type: Application
    Filed: May 19, 2014
    Publication date: February 12, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Joon Seong KANG, Chang Soon PARK, Young Jun HONG
  • RECEPTION NODE AND TRANSMISSION NODE FOR SAVING ENERGY OF RECEPTION NODE, AND COMMUNICATION METHOD THEREOF
    Publication number: 20150043402
    Abstract: A communication method of a transmission node includes generating information of a transmission unavailable time period of the transmission node in a reception available time period of a reception node, and transmitting, to the reception node, the information of the transmission unavailable time period. The reception node operates in a sleep state based on the information of the transmission unavailable time period.
    Type: Application
    Filed: February 10, 2014
    Publication date: February 12, 2015
    Applicants: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY, SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chang Soon PARK, Young Soo KIM, Hyo Sun HWANG, Jang Won LEE, Sung Yeon KIM, Hyun Sik JUNG
  • METHOD AND APPARATUS FOR ADAPTIVELY SETTING THRESHOLD FOR SIGNAL DEMODULATION
    Publication number: 20150036768
    Abstract: Provided is a method and apparatus to adaptively set a threshold for signal demodulation. The apparatus and the method include adaptively setting a threshold to demodulate a currently received symbol based on the demodulation value of a previously received symbol based on a comparison value. The comparison value is obtained by comparing a number of previously received symbols having a demodulation value of “0” and a number of currently received symbols having a demodulation value of “1”.
    Type: Application
    Filed: March 7, 2014
    Publication date: February 5, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ui Kun KWON, Chang Soon PARK, Chi Sung BAE, Joon Seong KANG, Sang Joon KIM, Seung Keun YOON, Chang Mok CHOI
  • METHOD AND APPARATUS FOR STABLE SIGNAL DEMODULATION IN COMMUNICATION SYSTEM
    Publication number: 20150003572
    Abstract: A method and apparatus provide for stable signal demodulation in a communication system. The method and apparatus includes including detecting an erroneous demodulation value based on backward-demodulation of received signals, using a difference between a received signal to be demodulated and a preceding signal of the received signals and correcting the error demodulation value. Alternatively, backward-demodulation is used to confirm received signals.
    Type: Application
    Filed: February 4, 2014
    Publication date: January 1, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ui Kun KWON, Chang Soon PARK, Chi Sung BAE, Joon Seong KANG, Sang Joon KIM, Seung Keun YOON, Chang Mok CHOI