Patents by Inventor Hyeong-Sook Park

Hyeong-Sook 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).

  • Patent number: 11503838
    Abstract: The present invention relates to a method for manufacturing cooking oil, and cooking oil and food manufactured using the same, wherein the manufacturing method includes a) roasting a vegetable raw material by far infrared rays, b) expressing the roasted vegetable raw material to obtain an oil or fat composition containing a first active ingredient, c) obtaining an extract containing a second active ingredient from a residue of the vegetable raw material remaining after the oil or fat composition is expressed, and d) mixing the oil or fat composition with the extract.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: November 22, 2022
    Assignee: Queensbucket. Co., Ltd.
    Inventors: Jeong Yong Park, Yeo Sook Lim, Hyeong Nam Jung
  • Publication number: 20220247604
    Abstract: An operation method of a receiving apparatus may comprise: receiving an N-th data block belonging to a frame including a plurality of data blocks from a transmitting apparatus, each of the plurality of data blocks including a data period and a UW period; storing a first UW received in a UW period of the N-th data block in a buffer; receiving an (N+1)-th data block belonging to the frame from the transmitting apparatus; estimating a phase noise in a time domain by combining the first UW with a second UW received in a UW period of the (N+1)-th data block; and applying time-domain compensation according to the estimated phase noise to the (N+1)-th data block, and demodulating data of the (N+1)-th data block, wherein the first UW and the second UW are configured with a same sequence.
    Type: Application
    Filed: December 2, 2021
    Publication date: August 4, 2022
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventor: Hyeong Sook PARK
  • Patent number: 9872277
    Abstract: The exemplary embodiment of the present invention provides a beam selecting apparatus of a fixed beam terminal, including: a delay time measuring unit which measures delay times of a plurality of signals received through a plurality of beams; a beam selecting unit which compares a threshold value selected based on the measured delay time and a signal strength of each of the plurality of signals to select a beam; and a switching type beam former which operates the plurality of beams in accordance with the selected beam.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: January 16, 2018
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Hyeong Sook Park, Yong Su Lee, Youn Ok Park
  • Publication number: 20170181193
    Abstract: Disclosed herein are an apparatus and a method for receiving uplink data to determine whether to use a reception beam group in reception of the uplink data on the basis of a preamble for a random access or a CQI included in a feedback.
    Type: Application
    Filed: December 16, 2016
    Publication date: June 22, 2017
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Hyeong Sook PARK, IL GYU KIM, Jun-Woo KIM
  • Patent number: 9609633
    Abstract: The present invention relates to a data transmitting method using a bandwidth request channel and a user terminal and a base station conducting the same. The present invention provides a communication method by a user terminal which transmits data to a base station via a bandwidth request channel, including: generating a preamble for bandwidth request; determining whether a message for the bandwidth request is generated; generating a first signal value to be operated with the preamble when it is determined that the message is generated and generating a second signal value to be operated with the preamble when it is determined that the message is not generated; operating the preamble with the generated first signal value or second signal value; and transmitting a signal including the operated preamble to the base station, thereby reducing overhead occurring when the bandwidth request information is demodulated.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: March 28, 2017
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Hyeong Sook Park, Jun Woo Kim, Youn Ok Park
  • Publication number: 20160192329
    Abstract: The exemplary embodiment of the present invention provides a beam selecting apparatus of a fixed beam terminal, including: a delay time measuring unit which measures delay times of a plurality of signals received through a plurality of beams; a beam selecting unit which compares a threshold value selected based on the measured delay time and a signal strength of each of the plurality of signals to select a beam; and a switching type beam former which operates the plurality of beams in accordance with the selected beam.
    Type: Application
    Filed: November 23, 2015
    Publication date: June 30, 2016
    Inventors: Hyeong Sook PARK, Yong Su LEE, Youn Ok PARK
  • Publication number: 20150229396
    Abstract: The present invention relates to a signal processing apparatus and method of a basestation. The apparatus according to the present invention includes a plurality of first processing units which allocates transmission data to a predetermined frequency band and transmits a transmission signal in which control information is allocated to a guard band in the predetermined frequency band; a plurality of second processing units which extracts the control information from the guard band in the predetermined frequency band for a reception signal to perform a corresponding operation and extracts the transmission data from the predetermined frequency band to transmit the transmission data through the antenna; and an optical transmitting unit which combines a plurality of transmission signals received from the plurality of first processing units into one signal to transmit the signal to the plurality of second processing units through the optical cable.
    Type: Application
    Filed: February 6, 2015
    Publication date: August 13, 2015
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Hoon LEE, Hyeong Sook PARK, Kyung Yeol SOHN, Youn Ok PARK
  • Publication number: 20150230251
    Abstract: The present invention relates to a data transmitting method using a bandwidth request channel and a user terminal and a base station conducting the same. The present invention provides a communication method by a user terminal which transmits data to a base station via a bandwidth request channel, including: generating a preamble for bandwidth request; determining whether a message for the bandwidth request is generated; generating a first signal value to be operated with the preamble when it is determined that the message is generated and generating a second signal value to be operated with the preamble when it is determined that the message is not generated; operating the preamble with the generated first signal value or second signal value; and transmitting a signal including the operated preamble to the base station, thereby reducing overhead occurring when the bandwidth request information is demodulated.
    Type: Application
    Filed: January 30, 2015
    Publication date: August 13, 2015
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Hyeong Sook PARK, Jun Woo KIM, Youn Ok PARK
  • Patent number: 8937938
    Abstract: There is provided a method for acquiring and modifying uplink and downlink synchronization, by which, if there is a possibility of ISI occurring due to incorrect downlink synchronization of a terminal with a base station, the terminal receives a ranging response from the base station, modifies incorrect downlink synchronization, and acquires uplink synchronization in accordance with modified downlink synchronization. The method for acquiring and modifying uplink and downlink synchronization efficiently prevents, in a cooperative communication network, discrepancy in signal transmission synchronization between the base stations, excessive attenuation of a transmitted signal, or a delay caused by a difference in reflection paths.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: January 20, 2015
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jun-Woo Kim, Hyeong Sook Park, Hoon Lee, Seungjae Bahng, Youn Ok Park
  • Publication number: 20140254503
    Abstract: Provided are a signal detector for an uplink control channel and a time error correction method capable of simply correcting time errors, which occur during adjustment of a starting point of an FFT of an uplink control channel signal, by use of differential demodulation and thus improving the signal detection performance of an uplink control channel.
    Type: Application
    Filed: August 14, 2013
    Publication date: September 11, 2014
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Hyeong-Sook PARK, Jun-Woo Kim, Youn-Ok Park
  • Patent number: 8724687
    Abstract: A data processing method, an equalizer, and a receiver in a wireless communication system including a relay station are provided. The data processing method includes: receiving a base station signal from a base station; receiving a relay station signal from a relay station; determining a propagation delay between the base station signal and the relay station signal; generating an equalizing signal in which interference generated between the base station signal and the relay station signal is alleviated in consideration of the propagation delay; and recovering information bits transmitted by the base station from the equalizing signal. According to an exemplary embodiment of the present invention, it is possible to alleviate performance deterioration due to an interference problem generated in a relay system.
    Type: Grant
    Filed: April 6, 2012
    Date of Patent: May 13, 2014
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Young Jo Bang, Hyeong Sook Park, Eon Young Hong, Kyung Yeol Sohn, Jun Woo Kim, Youn Ok Park, Jae Kwon Kim
  • Patent number: 8599911
    Abstract: There is provided a method and apparatus for estimating a signal to noise ratio (SNR) in a wireless communication system. The apparatus selects a preamble signal for each of a plurality of sectors from a reception signal experienced by fast Fourier transform (FFT), outputs a correlation signal by performing a correlation between the preamble signal for each sector and a preamble reference signal, estimates power of the reception signal and noise power for each sector based on the correlation signal, selects a minimum value from among the noise powers for the sectors, outputs a net power for each sector by subtracting the minimum value from the power of the reception signal for each sector, and calculates the SNR by dividing the net power for each sector by the minimum value.
    Type: Grant
    Filed: April 23, 2012
    Date of Patent: December 3, 2013
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Hyeong Sook Park, Jun Woo Kim, Youn Ok Park
  • Patent number: 8559566
    Abstract: Disclosed is a method and apparatus for composing a received symbol signal modulated with a bit reflected Gray code into bit information. According to an embodiment of the present invention, a positive integer of the received symbol signal having bits is assigned according to the Gray mapping rule, and a sign is determined. A value that is indicative of an arrangement of the bits constituting the received symbol signal is calculated. A boundary value in at least one bit group consisting of the bits constituting the received symbol signal is acquired, and a difference from an absolute value of the received symbol signal is calculated. The received symbol signal is converted into information per bit using a value of the received symbol signal based on the positive integer and the determined sign, the value that is indicative of the bit arrangement, and the difference from the absolute value.
    Type: Grant
    Filed: September 1, 2008
    Date of Patent: October 15, 2013
    Assignees: Samsung Electronics Co., Ltd., Electronics and Telecommunications Research Institute
    Inventors: Chang Wahn Yu, Dong Weon Yoon, Kwang Min Hyun, Youn Ok Park, Dae Ho Kim, Jun-Woo Kim, Hyeong Sook Park, Seung Jae Bahng, Young Jo Bang, Kyung Yeol Sohn
  • Patent number: 8406320
    Abstract: The present invention relates to a digital clipping method for reducing a high peak-to-average power ratio (PAPR) of a transmission signal in a transmitter of an orthogonal frequency division multiplexing access (OFDMA) system. In the method, a) the transmission signal to be digitally clipped is divided into real and imaginary parts, b) magnitudes of the real and imaginary part signals are divided into a plurality clipping levels, and c) the transmission signal is respectively clipped by comparing the real and imaginary part signals with the plurality of clipping levels while allowing phase errors. In c), a plurality of comparators is used to respectively compare the real and imaginary parts of the complex number transmission signal with the plurality of clipping levels.
    Type: Grant
    Filed: October 26, 2005
    Date of Patent: March 26, 2013
    Assignees: Samsung Electronics Co., Ltd., Electronics and Telecommunications Research Institute, KT Corp., SK Telecom Co., Ltd., KTFreetel Co., Ltd., Hanaro Telecom, Inc.
    Inventors: Hyeong-Sook Park, Youn-Ok Park
  • Publication number: 20120269251
    Abstract: There is provided a method and apparatus for estimating a signal to noise ratio (SNR) in a wireless communication system. The apparatus selects a preamble signal for each of a plurality of sectors from a reception signal experienced by fast Fourier transform (FFT), outputs a correlation signal by performing a correlation between the preamble signal for each sector and a preamble reference signal, estimates power of the reception signal and noise power for each sector based on the correlation signal, selects a minimum value from among the noise powers for the sectors, outputs a net power for each sector by subtracting the minimum value from the power of the reception signal for each sector, and calculates the SNR by dividing the net power for each sector by the minimum value.
    Type: Application
    Filed: April 23, 2012
    Publication date: October 25, 2012
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Hyeong Sook PARK, Jun Woo KIM, Youn Ok PARK
  • Publication number: 20120257669
    Abstract: A data processing method, an equalizer, and a receiver in a wireless communication system including a relay station are provided. The data processing method includes: receiving a base station signal from a base station; receiving a relay station signal from a relay station; determining a propagation delay between the base station signal and the relay station signal; generating an equalizing signal in which interference generated between the base station signal and the relay station signal is alleviated in consideration of the propagation delay; and recovering information bits transmitted by the base station from the equalizing signal. According to an exemplary embodiment of the present invention, it is possible to alleviate performance deterioration due to an interference problem generated in a relay system.
    Type: Application
    Filed: April 6, 2012
    Publication date: October 11, 2012
    Applicant: ELECTRONICS AND TELECOMUNICATIONS RESEARCH INSTITUTE
    Inventors: Young Jo BANG, Hyeong Sook Park, Eon Young Hong, Kyung Yeol Sohn, Jun Woo Kim, Youn Ok Park, Jae Kwon Kim
  • Patent number: 8199738
    Abstract: Disclosed herein is a base station that extracts a ranging channel signal from a received signal partially correlates each of a plurality of ranging channel signals and each of ranging codes according to ranging modes, and selects a ranging channel signal greater than a first threshold value, the plurality of ranging channel signals being signals according to plurality of time delays of a ranging channel signal. In addition, the base station correlates each of the selected ranging channel signal and each of corresponding ranging code, selects a ranging channel signal having the maximum correlation value, and estimates receiving power by using a time delay corresponding to the selected ranging channel signal.
    Type: Grant
    Filed: December 11, 2006
    Date of Patent: June 12, 2012
    Assignees: Samsung Electronics Co., Ltd, Electronics and Telecommunications Research Institute, KT Corporation, SK Telecom Co., Ltd, Hanaro Telecom., Inc.
    Inventors: Kyung-Yeol Sohn, Hyeong-Sook Park, Youn-Ok Park
  • Publication number: 20120093261
    Abstract: Disclosed herein are a method and an apparatus for transmitting a downlink control signal in a wireless communication system. The apparatus for transmitting a downlink control signal includes: a preamble symbol generator generating preamble orthogonal frequency division multiplexing (OFDM) symbols based on a first pilot pattern among pilot patterns for each of the plurality of transmit antennas; a midamble symbol generator generating midamble OFDM symbols based a second pilot pattern excluding the first pilot pattern from the pilot patterns for each of the plurality of transmit antennas; an IFFT unit performing inverse fast Fourier transform (IFFT) for each transmit antenna on the preamble OFDM symbol and the midamble OFDM symbol; and a plurality of transmit antennas transmitting the preamble OFDM symbols and the midamble OFDM symbols.
    Type: Application
    Filed: October 14, 2011
    Publication date: April 19, 2012
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jun Woo Kim, Jung Pil Choi, Hyeong Sook Park, Eon Young Hong, Youn Ok Park
  • Patent number: 8160174
    Abstract: Disclosed is a method of detecting signals at a receiver of a communication system with a multiple input multiple output antenna. With the signal detection method, a square of the distance between a received signal vector and a channel status-considered transmission symbol vector is calculated first, and the square of the distance is then classified into first and second components. The first component is minimized to calculate a plurality of first soft symbol estimates. A solution set of the first component is calculated on the basis of the plurality of first soft symbol estimates. The second component is minimized to calculate a plurality of second soft symbol estimates. A solution set of the second component is calculated on the basis of the plurality of second soft symbol estimates. A final solution set is calculated by doing the sum of the first component solution set and the second component solution.
    Type: Grant
    Filed: November 30, 2009
    Date of Patent: April 17, 2012
    Assignees: Samsung Electronic Co., Ltd., Electronics and Telecommunications Research Institute
    Inventors: Young Jo Bang, Hyeong Sook Park, Jun-Woo Kim, Kyung Yeol Sohn, Chang Wahn Yu, Youn Ok Park, Jee Hwan Ahn, Il Min Kim
  • Patent number: 8135079
    Abstract: The present invention relates an apparatus and method of estimating a signal-to-noise ratio (SNR) of a received signal when the received signal has a timing offset. An apparatus for estimating a signal-to-noise ratio (SNR) according to an exemplary embodiment of the present invention includes a fast Fourier transform (FFT) unit that performs a fast Fourier transform on a received signal to convert the received signal into a frequency domain signal; a preamble selector that extracts a preamble from the frequency domain signal; a correlator that correlates the preamble to a preamble reference signal generated by a receiver to calculate a correlation value; an entire power estimator that calculates entire power; a noise power estimator that applies a differential demodulation method to the correlation value to remove a timing offset and calculate noise power; and an estimating unit that uses the entire power and the noise power to estimate the signal-to-noise ratio (SNR).
    Type: Grant
    Filed: July 22, 2008
    Date of Patent: March 13, 2012
    Assignees: Samsung Electronics Co., Ltd., Electronics and Telecommunications Research Institute
    Inventors: Hyeong Sook Park, Jun-Woo Kim, Eon Young Hong, Youn Ok Park