Patents by Inventor Jin BYUN

Jin BYUN 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: 20150149836
    Abstract: A recoverable and fault-tolerant CPU core and a control method thereof are provided. The recoverable and fault-tolerant CPU core includes first, second, and third arithmetic logic circuits configured to perform a calculation requested by the same instruction, a first selector configured to compare calculation values output from the first, second, and third arithmetic logic circuits by the same instruction, determine as a normal state when two or more of the calculation values are the same, and if not, determine as a fault state, and a register file configured to record the calculation value having the same value, when determining as the normal state in the first selector.
    Type: Application
    Filed: November 19, 2014
    Publication date: May 28, 2015
    Inventors: Young Su KWON, Jin Ho HAN, Kyung Jin BYUN
  • Publication number: 20150146803
    Abstract: Disclosed are a wireless communication method of improving frequency efficiency based on a channel function in a wireless communication system and an apparatus thereof. The wireless communication system using a digital modulation scheme, includes: a transmitting apparatus which modulates a data signal to generate a modulation symbol, generates a channel symbol function corresponding to the modulation symbol, combines the modulation symbol with the channel symbol function to generate a transmission symbol to transmit the generated transmission symbol through a transmission antenna; and a receiving apparatus which receives the transmission symbol through a reception antenna, estimates a channel symbol function included in the transmission symbol, and extracts the data signal based on the modulation symbol included in the transmission symbol.
    Type: Application
    Filed: November 19, 2014
    Publication date: May 28, 2015
    Inventors: Kwang Seon KIM, Min Soo KANG, Bong Su KIM, Woo Jin BYUN, Jong Soo LIM, Myung Sun SONG, Jae Ick CHOI
  • Publication number: 20150146833
    Abstract: The present invention relates to a method and apparatus for controlling supply voltage of clock and data recovery circuit.
    Type: Application
    Filed: November 28, 2014
    Publication date: May 28, 2015
    Inventor: Sang-Jin Byun
  • Publication number: 20150138657
    Abstract: The disclosure provides an antenna apparatus. Disclosed is an antenna apparatus comprising a power feeding unit receiving an electromagnetic wave from a transmitter and providing the received electromagnetic wave to the antenna apparatus, a sub reflector generating an OAM (Orbital Angular Momentum) mode electromagnetic wave, and a main reflector reflecting the generated OAM mode electromagnetic wave to a far field region.
    Type: Application
    Filed: November 20, 2014
    Publication date: May 21, 2015
    Inventors: Woo Jin BYUN, Yong Heui CHO, Kwang Seon KIM, Bong Su KIM, Min Soo KANG, Jong Soo LIM
  • Patent number: 9008158
    Abstract: Disclosed uses a digital to analog converter and an analog to digital converter that process a low bit for processing of a data signal at high speed according to analog to digital conversion and digital to analog conversion in a communication system and an analog to digital converter that processes high bit for processing of a signal for synchronization acquisition at low speed.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: April 14, 2015
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Kwang-Seon Kim, Bong-Su Kim, Min-Soo Kang, Woo-Jin Byun
  • Publication number: 20150063452
    Abstract: Disclosed is a residual signal inter-channel intra prediction encoding method between a residual signal of a luminance component of an image and a residual signal of a chrominance component thereof. It is possible to improve an intra prediction encoding performance when the inter-channel prediction is performed between residual signal of the luminance component and the chrominance component of HEVC, and derive a prediction coefficient for linear prediction at a high speed while the quadtree block structure of the HEVC is not changed. In addition, it is advantageous to avoid degradation in inter-channel prediction performance, which is caused when quadtree block structures of prediction units (PUs) of the luminance component and the chrominance component are different.
    Type: Application
    Filed: June 13, 2014
    Publication date: March 5, 2015
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Ig Kyun KIM, Kyung Jin BYUN, Nak Woong EUM
  • Publication number: 20150063044
    Abstract: A strobe signal generation device includes an enable signal generating section, a buffering section and a strobe signal driving section. The enable signal generation section generates a division enable signal in response a strobe signal. The buffering section configured to generate a delayed strobe signal from the strobe signal while the division enable signal is enabled. The strobe signal driving section configured to generate a plurality of data strobe signals with a larger pulse width than the delayed strobe signal, in response to the division enable signal and the delayed strobe signal.
    Type: Application
    Filed: February 25, 2014
    Publication date: March 5, 2015
    Applicant: SK hynix Inc.
    Inventors: Hee Jin BYUN, Ki Chang KWEAN
  • Patent number: 8947955
    Abstract: A memory system includes a semiconductor memory including a storage unit configured to store parameter information in response to a test mode signal and to output the stored parameter information in response to a parameter request signal, and a memory controller configured to provide the parameter request signal to the semiconductor memory and receive the parameter information from the semiconductor memory device.
    Type: Grant
    Filed: March 16, 2013
    Date of Patent: February 3, 2015
    Assignee: SK Hynix Inc.
    Inventors: Hee-Jin Byun, Ki-Chang Kwean
  • Patent number: 8942307
    Abstract: An antenna switching apparatus based on spatial modulation includes a plurality of antennas; a control signal generator configured to generate a plurality of switching control signals; and a plurality of switches configured to switch on to apply a transmission signal to the respective antennas according to the respective switching control signals. Further, the antenna switching apparatus includes a delay analyzer configured to receive the transmission signal output from each of the plurality of switches to calculate delay information for synchronizing the switching control signals applied to the respective switches; and a delay adjuster configured to synchronize the switching control signals to apply the synchronized switching control signals to the respective switches according to the calculated delay information.
    Type: Grant
    Filed: June 7, 2013
    Date of Patent: January 27, 2015
    Assignees: Electronics and Telecommunications Research Institute, Foundation for Research and Business Seoul National University of Science and Technology
    Inventors: Bong-Su Kim, Kwang Seon Kim, Min Soo Kang, Woo Jin Byun, Hung Chul Park
  • Publication number: 20150017731
    Abstract: Disclosed is a test apparatus of accelerated photo-degradation measuring a degradation caused by photo-degradation in a material or a product by light containing UV light and visible light that simulate the solar light-inducing degradation. The apparatus includes a light irradiating unit configured to irradiate light using at least one electrodeless plasma lamp; a light condensing unit configured to collect light emitted from the light irradiating unit and irradiate the light uniformly into the surface of the specimen for the material or the product; and a specimen holder configured to fix the specimen, and the specimen holder being fixed at a predetermined position or rotated. Further, the at least one electrodeless plasma lamp generates light having a light power spectrum similar to a solar light in a region of UV light and short-wavelength visible light corresponding to a range of about 300-500 nm.
    Type: Application
    Filed: January 16, 2013
    Publication date: January 15, 2015
    Inventor: Doo Jin Byun
  • Patent number: 8928525
    Abstract: Disclosed is a method for performing a 3D image reconstruction at a high speed and high resolution, regardless of a measurement distance. Specifically, a weight for image reconstruction is previously set, and a 3D image reconstruction algorithm is performed at a high speed, without reducing a resolution, by a parallel processing for image reconstruction, a computation of a partial region using a database based on a measurement result, and a generation of a variable pulse waveform.
    Type: Grant
    Filed: December 15, 2011
    Date of Patent: January 6, 2015
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Woo Jin Byun, Yong Heui Cho, Kwang Seon Kim, Min Soo Kang, Bong Su Kim
  • Publication number: 20150006935
    Abstract: Disclosed are a processor capable of reducing power consumption of a cache by controlling power mode of the cache and a method for the same. A processor may comprise a processor core; a cache storing instructions to be executed in the processor core; and a cache management part controlling the cache based on a processor operation mode indicating a state of the processor core determined according to algorithm executed in the processor core. Thus, power consumption of cache may be reduced, and degradation of processor core performance may be prevented by controlling power mode of cache considering an operation mode of the processor.
    Type: Application
    Filed: June 10, 2014
    Publication date: January 1, 2015
    Inventors: Jin Ho HAN, Young Su KWON, Kyoung Seon SHIN, Kyung Jin BYUN, Nak Woong EUM
  • Publication number: 20140348250
    Abstract: Provided is a method for a plurality of processing elements to filter a plurality of pixel blocks in a plurality of picture partitions for a single frame image. The method for filtering pixel blocks includes: checking the status of a second boundary pixel block adjacent to a picture partition boundary, the second boundary pixel block being one of a plurality of pixel blocks in a second picture partition and neighboring a first boundary pixel block in a first picture partition, the first boundary pixel block neighboring the picture partition boundary; selecting a filtering area for the first boundary pixel block based on the status of the second boundary pixel block; and filtering the filtering area for the first boundary pixel block.
    Type: Application
    Filed: May 23, 2014
    Publication date: November 27, 2014
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Seunghyun CHO, Hyun Mi KIM, Kyung Jin BYUN, Nak Woong EUM
  • Publication number: 20140351828
    Abstract: An apparatus and method for controlling a multi-core SoC including a main core and at least one sub-core are disclosed. The apparatus includes a determination unit, a storage unit, and a control unit. The determination unit determines whether or not to drive the sub-core by taking the performance or power of the multi-core SoC into consideration. The storage unit stores state information including a register of the main core or the sub-core in accordance with a determination of the determination unit. The control unit performs control so that the main core and the sub-core execute a sub-task, that is, a task of the sub-core, through exchange by sharing the state information.
    Type: Application
    Filed: April 22, 2014
    Publication date: November 27, 2014
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Yoo-Kyoung LEE, Kyung-Jin BYUN, Nak-Woong EUM
  • Publication number: 20140341270
    Abstract: An apparatus and method for skipping fractional motion estimation (FME) in high efficiency video coding (HEVC) are disclosed. The apparatus includes a current sum of absolute differences (SAD) acquisition unit, a redundancy determination unit, and a motion estimation skip unit. The SAD acquisition unit acquires the SAD from an integer motion estimation (IME) unit when the IME unit performs IME on a coding tree block (CTB). The redundancy determination unit determines whether or not the CTB is an estimated redundant block using the current SAD. The motion estimation skip unit provides an FME unit with an FME skip signal of the CTB depending on whether or the CTB is an estimated redundant block.
    Type: Application
    Filed: April 29, 2014
    Publication date: November 20, 2014
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Seong-Mo Park, Seung-Hyun Cho, Hyun-Mi Kim, Kyung-Jin Byun, Nak-Woong Eum
  • Publication number: 20140334284
    Abstract: A signal transmission and reception method includes generating a plurality of electromagnetic wave mode functions having orthogonality in a spatial domain using a plurality of input signals, synthesizing and wirelessly transmitting the generated electromagnetic wave mode functions, receiving a revolution division multiplexing electromagnetic wave having characteristics of phase rotation in directions of an azimuth angle and an elevation angle, and discriminating the electromagnetic wave mode functions through an orthogonal operation, and restoring an output signal through correction of the discriminated electromagnetic wave mode functions.
    Type: Application
    Filed: August 12, 2013
    Publication date: November 13, 2014
    Applicant: Electronics And Telecommunications Research Institute
    Inventors: Woo Jin BYUN, Yong Heui CHO, Kwang Seon KIM, Min soo KANG, Bong-Su KIM
  • Publication number: 20140333503
    Abstract: A reflectarray antenna for wireless telecommunication includes a ground plane; a dielectric substrate attached on the ground plane; and a first antenna patch formed on one side of the dielectric substrate. Further, the reflectarray antenna includes a second antenna patch formed adjacent to the first antenna patch with a separation area therebetween; and a phase adjustment member disposed in the separation area to adjust a phase of a scattered field of the antenna by the appliance of a DC voltage.
    Type: Application
    Filed: July 24, 2013
    Publication date: November 13, 2014
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Woo Jin BYUN, Yong Heui CHO, Min Soo KANG, Kwang Seon KIM, Bong-Su KIM
  • Publication number: 20140307794
    Abstract: A motion estimation apparatus and method are disclosed. The motion estimation apparatus includes processing element (PE) array units, sub-SAD calculation units, motion vector calculation units, and a minimum motion vector selector. The PE array units each perform parallel processing for each of the three types of coding units. The sub-SAD calculation units calculate respective SAD values for the three types of coding units. The motion vector calculation units calculate respective motion vectors for the three types of coding units. The minimum motion vector selector selects a minimum motion vector from among the motion vectors.
    Type: Application
    Filed: March 18, 2014
    Publication date: October 16, 2014
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Seong-Mo PARK, Kyung-Jin Byun, Nak-Woong Eum
  • Publication number: 20140294073
    Abstract: Disclosed herein are an apparatus and a method of providing recompression of a video capable of recompressing and transmitting flags of data having an association with neighboring data in a video block and an original video by a simple logic. To this end, the apparatus of providing recompression of a video includes: a recompressing unit recompressing a compressed video frame based on information obtained by comparing a selected block selected from the compressed video frame and an adjacent block adjacent to the selected block with each other; and a frame memory controlling unit storing the recompressed video frame in a frame memory. Therefore, a hardware volume may be decreased while original video data are maintained.
    Type: Application
    Filed: March 13, 2014
    Publication date: October 2, 2014
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Seong-Mo PARK, Kyung-Jin BYUN, Nak-Woong EUM
  • Publication number: 20140286449
    Abstract: A wireless link apparatus includes a plurality of antennas; a signal detector configured to calculate SNR based on a signal received from at least one of the plurality of antennas; and a mode selector configured to determine the number of an antenna to be used in modulation method and signal transmission by comparing the calculated SNR with a preset critical value. Further, the wireless link apparatus includes a transmitter configured to modulate a signal in the modulation method determined by the mode selector and transmit the modulated signal using an antenna corresponding to the determined number of the antennas.
    Type: Application
    Filed: June 20, 2013
    Publication date: September 25, 2014
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Kwang Seon KIM, Min Soo KANG, Bong-Su KIM, Woo Jin BYUN