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).

  • Patent number: 7907031
    Abstract: A transit structure of a standard waveguide and a dielectric waveguide is related to connecting the dielectric dielectric waveguide to the standard waveguide. The transit structure includes: a cavity to match the dielectric waveguide and the standard waveguide, wherein the dielectric waveguide and the standard waveguide are orthogonal to each other to connect. The transit structure drastically reduces a design time by simply implementing a transit structure by using only a dielectric waveguide, a cavity and a standard waveguide on a dielectric substrate and remarkably reduces a size thereof in comparison with a conventional transit structure since all designs are finished in the size of a metal waveguide.
    Type: Grant
    Filed: August 31, 2006
    Date of Patent: March 15, 2011
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Bong-Su Kim, Kwang-Seon Kim, Woo-Jin Byun, Ki-Chan Eun, Myung-Sun Song
  • Publication number: 20110051531
    Abstract: A semiconductor memory device using system clock with a high frequency can maintain a constant operation margin even in the change of operation environments including voltage level, temperature, and process. The semiconductor memory device includes an output control signal generator configured to be responsive to a read pulse that is activated in response to a read command, to generate an odd number of first output source signals corresponding to a rising edge of a system clock and a even number of second output source signals corresponding to a falling edge of the system clock, and an output enable signal generator configured to generate a first rising enable signal and a falling enable signal on the basis of the first output source signal and generate a second rising enable signal on the basis of the second output source signal, according to column address strobe (CAS) latencies, the first rising enable signal being activated earlier than the second rising enable signal by a half cycle of the system clock.
    Type: Application
    Filed: November 5, 2010
    Publication date: March 3, 2011
    Inventor: Hee-Jin BYUN
  • Patent number: 7899667
    Abstract: A waveform interpolation speech coding apparatus and method for reducing complexity thereof are disclosed. The waveform interpolation speech coding apparatus includes: a waveform interpolation encoding unit for receiving a speech signal, calculating parameters for a waveform interpolation from the received speech signal, and quantizing the calculating parameters; and a realignment parameter calculating unit for restoring a characteristic waveform (CW) using the quantized parameter, calculating a realignment parameter that maximizes a cross-correlation among consecutive CWs for the restored CW.
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: March 1, 2011
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Kyung-Jin Byun, Ik-Soo Eo, Hee-Bum Jung, Nak-Woong Eum
  • Patent number: 7852707
    Abstract: A semiconductor memory device using system clock with a high frequency can maintain a constant margin of operation even with a changed operating environment including voltage level, temperature, and process. The semiconductor memory device includes a data output control circuit configured to control data outputted in synchronization with a falling edge of a system clock using a first output source signal corresponding to a rising edge of the system clock, and to control data outputted in synchronization with the rising edge of the system clock using a second output source signal corresponding to a falling edge of the system clock, and a data output circuit configured to output data, the data output circuit being controlled by the data output control circuit.
    Type: Grant
    Filed: May 28, 2008
    Date of Patent: December 14, 2010
    Assignee: Hynix Semiconductor Inc.
    Inventor: Hee-Jin Byun
  • Patent number: 7848923
    Abstract: Provided is a method for converting a dimension of a vector. The vector dimension conversion method for vector quantization includes the steps of: extracting a specific parameter having a pitch period from an input speech signal and then generating a vector of a dimension that varies according to the pitch period; dividing an entire frequency domain of the generated vector of the variable dimension into at least two frequency domains; and converting the vector of the variable dimension into vectors of mutually different fixed dimensions according to the divided frequency domains. Thereby, not only an error due to the vector dimension conversion is suppressed but codebook memory required for the vector quantization is effectively reduced.
    Type: Grant
    Filed: April 24, 2006
    Date of Patent: December 7, 2010
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Kyung Jin Byun, Ik Soo Eo, Hee Bum Jung
  • Patent number: 7843744
    Abstract: A semiconductor memory device that generates a data strobe reset signal for preventing ring-back of a data strobe signal, and an operation method thereof. The semiconductor memory device includes a pulse signal generating unit for generating first and second pulse signals by synchronizing a write instruction with first and second internal clock signals, a reset signal generating unit for generating a reset signal having an activation width setup in response to the first and second pulse signals, and a data strobe reset signal generating unit for generating a data strobe reset signal by shifting the second pulse signal as much as a predetermined burst length and limiting an activation period of the data strobe reset signal in response to the reset signal.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: November 30, 2010
    Assignee: Hynix Semiconductor Inc.
    Inventor: Hee-Jin Byun
  • Publication number: 20100283550
    Abstract: Provided are a multi-output oscillator using a single oscillator, and a method of generating multiple outputs. The multi-output oscillator includes: an oscillator outputting the single frequency; a multiplier multiplying the single frequency to output a first frequency; a first frequency divider dividing the single frequency by a first division factor; a first mixer outputting a second frequency by mixing an output of the first frequency divider and an output of the multiplier; a second frequency divider dividing the single frequency by a second division factor; a second mixer mixing the output of the second frequency divider and the output of the first mixer to output a third frequency; and a third mixer mixing the output of the second frequency divider and the output of the multiplier to output a fourth frequency.
    Type: Application
    Filed: December 28, 2009
    Publication date: November 11, 2010
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Kwang-Seon KIM, Woo-Jin Byun, Min-Soo KANG, Bong-Su KIM, Tae-Jin CHUNG, Myung-Sun SONG
  • Publication number: 20100253450
    Abstract: Provided is an apparatus for transitioning a millimeter wave between dielectric waveguide and transmission line using a millimeter wave transition structure formed by the dielectric waveguide, the transmission line, and a slot to transition a signal with lower losses. The apparatus includes: transmission lines disposed respectively at input and output terminals on an uppermost dielectric substrate in a signal transition direction and adapted to transition a signal; a dielectric waveguide formed by a via array disposed between top and bottom ground surfaces of a lowermost dielectric substrate in the signal transition direction as a signal transition path; and slots disposed at a signal transition path of an upper ground surface of each dielectric substrate to connect the transmission lines to the dielectric waveguide so as to transition a signal from the transmission line of the input terminal to the transmission line of the output terminal through the dielectric waveguide.
    Type: Application
    Filed: October 30, 2007
    Publication date: October 7, 2010
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Bong-Su Kim, Woo-Jin Byun, Kwang-Seon Kim, Myung-Sun Song
  • Patent number: 7751521
    Abstract: A clock and data recovery apparatus reduces current consumption and enables easy integration. The inventive apparatus includes a first loop including a frequency/phase detection unit, a first charge pump unit, a multiplexing unit, a filtering unit, and a voltage controlled oscillator unit operating at a speed ¼ as fast as that of received data; a second loop having a phase detection unit operating at a speed ¼ as fast as a speed of received data, a second charge pump unit suitable for the phase detection unit, the multiplexing unit, the filtering unit, and the voltage controlled oscillator unit; a frequency lock detection unit for judging whether a frequency of a feedback clock signal falls within a desired frequency range; and a data recovery unit for recovering data from received data.
    Type: Grant
    Filed: November 15, 2005
    Date of Patent: July 6, 2010
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Sang-Jin Byun, Hyun-Kyu Yu
  • Publication number: 20100158154
    Abstract: Provided is a digital predistortion linearizer applicable to millimeter-wave band point-to-point communications. The digital predistortion linearizer includes a transmission unit and a reception unit. The reception unit receives a first signal including a transmission signal and a distortion signal through a millimeter-wave propagation environment, detects the distortion signal from the first signal, and transmits information on the detected distortion signal with the first signal to the transmission unit. The transmission unit generates a predistortion signal using the information on the distortion signal and the first signal received from the reception unit, couples the generated predistortion signal with the transmission signal, and outputs the coupled signal.
    Type: Application
    Filed: August 24, 2009
    Publication date: June 24, 2010
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Minsoo KANG, Woo-Jin Byun, Kwang-Seon Kim, Bong-Su Kim, Tae-Jin Chung, Myung-Sun Song
  • Publication number: 20100156731
    Abstract: A slot antenna having stubs is provided, in which a strip transmission line for transmitting a transverse electromagnetic mode (TEM) signal is formed by using a multi-layered substrate, and a plurality of slots are used for the strip transmission line. Thus, an omnidirectional radiation pattern is obtained, and the directivity of the slot antenna is improved.
    Type: Application
    Filed: November 5, 2009
    Publication date: June 24, 2010
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Woo Jin BYUN, Min Soo Kang, Kwang Seon Kim, Bong Su Kim, Tae Jin Chung, Myung Sun Song
  • Publication number: 20100151799
    Abstract: Provided is a transceiver using a millimeter-wave (MM-wave). The transceiver determines output power of a transmitting signal according to a receiving signal of a receiving end in the same device so that a possible loss value occurring in the air may be predicted. By doing so, performance of a whole link budget may be enhanced, and the transmitting signal may be rapidly controlled.
    Type: Application
    Filed: December 15, 2009
    Publication date: June 17, 2010
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Bong-Su KIM, Woo-Jin Byun, Min-Soo Kang, Kwang-Seon Kim, Tae-Jin Chung, Myung-Sun Song
  • Patent number: 7738315
    Abstract: A circuit for generating an output enable signal in a semiconductor memory apparatus which can include an interval setting unit capable of delaying a burst length signal in synchronized with a clock, thereby generating an interval setting signal, and a signal generating unit for generating an output enable signal in response to a read command signal and the interval setting signal.
    Type: Grant
    Filed: December 18, 2007
    Date of Patent: June 15, 2010
    Assignee: Hynix Semiconductor Inc.
    Inventor: Hee-Jin Byun
  • Patent number: 7738850
    Abstract: A broadcasting signal processing apparatus and a control method thereof are provided. The broadcasting signal processing apparatus includes a wireless antenna; a radio frequency (RF) module which tunes a broadcasting signal; a variable part which adjusts an impedance to match an impedance of the wireless antenna with an impedance of the RF module; and a controlling part which pre-stores impedance variable values for impedance matching and which controls the variable part to adjust the impedance based on one of the pre-stored impedance variable values corresponding to a broadcasting frequency of a selected broadcasting channel. The method includes tuning to a broadcasting frequency; determining whether an impedance used to match a wireless antenna with a radio frequency (RF) module is different from an impedance variable value; and if the impedance is different, adjusting the impedance.
    Type: Grant
    Filed: January 29, 2007
    Date of Patent: June 15, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Ho-jin Byun
  • Publication number: 20100098133
    Abstract: An apparatus for detecting a temperature using transistors includes a plurality of temperature detecting units that become selectively active according to predetermined temperature intervals; and a detection signal output unit that generates detection signals according to the signals transmitted by the plurality of temperature detecting units, and outputs the detection signals.
    Type: Application
    Filed: December 23, 2009
    Publication date: April 22, 2010
    Applicant: Hynix Semiconductor Inc.
    Inventors: Yoon-Jae Shin, Sang-Jin Byun
  • Publication number: 20100090903
    Abstract: Provided is a planar antenna having omni-directional radiation patterns. The planar antenna includes a circular patch located on one dielectric substrate of the plurality of dielectric substrates; a planar transmission line applied with signals from the exterior; a signal via for coupling the circular patch with the planar transmission line and supplying the signals incoming through the planar transmission line to the circular patch; and a metal ground plane having a slot having a certain shape through which the signal via passes, and located on the dielectric substrate.
    Type: Application
    Filed: November 29, 2007
    Publication date: April 15, 2010
    Inventors: Woo-Jin Byun, Bong-Su Kim, Kwang-Seon Kim, Myung-Sun Song
  • Publication number: 20100090761
    Abstract: A PSK demodulator using a time-to-digital converter includes: a filter unit that performs band pass filtering on a PSK signal; an amplitude limiting unit that limits the amplitude of an output signal of the filter unit; a clock signal generating unit that generates a clock signal; and a time-to-digital converter that samples the phase of an output signal of the amplitude limiting unit according to the clock signal and outputs a digital signal having a value corresponding to the phase of the PSK signal. Power consumption can be reduced and a circuit implementation can be simplified.
    Type: Application
    Filed: July 29, 2009
    Publication date: April 15, 2010
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Sang Jin Byun, Jae Hoon Shim, Hyun Kyu Yu
  • Publication number: 20100091591
    Abstract: A data strobe signal generating device includes a preamble controller configured to generate a preamble signal enabled in synchronization with a first clock signal and disabled in synchronization with a second clock signal after an output enable signal is enabled, and a data strobe signal output unit configured to generate a data strobe signal in response to the preamble signal.
    Type: Application
    Filed: December 31, 2008
    Publication date: April 15, 2010
    Applicant: HYNIX SEMICONDUCTOR INC.
    Inventor: Hee Jin Byun
  • Publication number: 20100065865
    Abstract: A method of forming a nitride semiconductor through ion implantation and an electronic device including the same are disclosed. In the method, an ion implantation region composed of a line/space pattern is formed on a substrate at an ion implantation dose of more than 1E17 ions/cm2 to 5E18 ions/cm2 or less and an ion implantation energy of 30˜50 keV, and a metal nitride thin film is grown on the substrate by epitaxial lateral overgrowth, thereby decreasing lattice defects in the metal nitride thin film. Thus, the electronic device has improved efficiency.
    Type: Application
    Filed: April 28, 2009
    Publication date: March 18, 2010
    Applicant: Korea University Industrial & Academic Collaboration Foundation
    Inventors: Dong-Jin BYUN, Bum-Joon Kim, Jung-Geun Jhin, Jong-Hyeob Baek
  • Patent number: 7661879
    Abstract: An apparatus for detecting a temperature using transistors includes a plurality of temperature detecting units that become selectively active according to predetermined temperature intervals; and a detection signal output unit that generates detection signals according to the signals transmitted by the plurality of temperature detecting units, and outputs the detection signals.
    Type: Grant
    Filed: October 23, 2006
    Date of Patent: February 16, 2010
    Assignee: Hynix Semiconductor Inc.
    Inventors: Yoon-Jae Shin, Sang-Jin Byun