Patents by Inventor Jae-hyun Koo
Jae-hyun Koo 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).
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Patent number: 12153239Abstract: The present disclosure provides a polarizing plate comprising: a polarizer; an optical laminate formed on one side of the polarizer and containing a polymer substrate and an antiglare layer; and a thermoplastic resin layer formed on the other side of the polarizer and containing a (meth)acrylate resin, and a liquid crystal panel and a display device including the polarizing plate.Type: GrantFiled: January 10, 2020Date of Patent: November 26, 2024Assignee: LG CHEM, LTD.Inventors: Min Soo Kim, Jaehoon Shim, Jung Hyun Seo, Jae Pil Koo, Joo Jong Moon, Jaeyoung Kim
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Publication number: 20240381655Abstract: A semiconductor device according to an embodiment of the present disclosure includes a substrate, a gate structure disposed over the substrate, a dielectric structure disposed to contact a sidewall surface of the gate structure over the substrate, and a channel layer disposed on a sidewall surface of the dielectric structure over the substrate. The gate structure includes a gate electrode layer and an interlayer insulation structure which are alternately stacked. The interlayer insulation structure includes a metal-organic framework layer.Type: ApplicationFiled: July 24, 2024Publication date: November 14, 2024Applicant: SK hynix Inc.Inventors: Won Tae KOO, Jae Hyun HAN, Se Ho LEE
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Publication number: 20240363872Abstract: A solid oxide cell includes a fuel electrode, an air electrode, and an electrolyte disposed between the fuel electrode and the air electrode. The fuel electrode includes a plurality of pore arrays arranged in a first direction. One of the plurality of pore arrays includes a plurality of pores arranged in a second direction. The first direction refers to a thickness direction of the electrolyte, and the second direction refers to a direction perpendicular to the first direction.Type: ApplicationFiled: July 28, 2023Publication date: October 31, 2024Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Hyeg Soon An, Bon Seok Koo, Su Beom Park, A Reum Jun, Jung Hyun Lee, Jae Seok Yi
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Publication number: 20240313073Abstract: A semiconductor memory device includes a channel layer, a gate electrode spaced apart from the channel layer, a blocking insulating layer between the gate electrode and the channel layer, a tunnel insulating layer between the channel layer and the blocking insulating layer, and nano-particles spaced apart from each other between the tunnel insulating layer and the blocking insulating layer.Type: ApplicationFiled: May 28, 2024Publication date: September 19, 2024Applicant: SK hynix Inc.Inventors: Jae Hyun HAN, Won Tae KOO
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Patent number: 12082420Abstract: A semiconductor device according to an embodiment of the present disclosure includes a substrate, a gate structure disposed over the substrate, a dielectric structure disposed to contact a sidewall surface of the gate structure over the substrate, and a channel layer disposed on a sidewall surface of the dielectric structure over the substrate. The gate structure includes a gate electrode layer and an interlayer insulation structure which are alternately stacked. The interlayer insulation structure includes a metal-organic framework layer.Type: GrantFiled: September 10, 2021Date of Patent: September 3, 2024Assignee: SK hynix Inc.Inventors: Won Tae Koo, Jae Hyun Han, Se Ho Lee
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Patent number: 7653859Abstract: A system, an apparatus and a method for transmitting/receiving data coded by a low density parity check matrix code are provided. The apparatus for transmitting data coded by a low density parity check code includes: a low density parity check encoder for encoding input data based on the low density parity check code; and a bit puncturer for puncturing columns in an order of columns which least degrade a performance caused by puncturing in the low density check code according to a code rate of an output data. Accordingly, the low density parity check code having superior performance can be implemented to the next generation mobile communication system supporting various code rates.Type: GrantFiled: April 22, 2005Date of Patent: January 26, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Eoi-Young Choi, Jaehong Kim, Jae-hyun Koo, Seung-bum Suh
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Patent number: 7577218Abstract: A signal acquisition apparatus and method for reducing a false alarm rate are disclosed. The apparatus includes a comparator for detecting a first peak by comparing a correlation value of a received signal with a first threshold and detecting second peaks in a sample interval of the detected first peak based on a second threshold which is different from the first threshold. Thus, a signal is acquired based on a number of the detected second peaks. Accordingly, the false alarm rate due to the noise can be reduced while the detection probability is maintained even at a high SNR.Type: GrantFiled: December 23, 2005Date of Patent: August 18, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Yun-young Kim, Jae-hyun Koo, Yeon-gon Cho, Jae-ho Roh
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Patent number: 7271678Abstract: A frequency generation apparatus and a method are provided. The frequency generation apparatus for generating a plurality of center frequencies for use in multi-band hopping communication, includes: an oscillator generating an oscillation frequency; a reference frequency generator multiplying the oscillation frequency by a first multiplication rate to generate a reference frequency; a compensation frequency generator multiplying the oscillation frequency by a second multiplication rate to generate a compensation frequency for compensating for the influence of a frequency offset of the oscillation frequency; and a center frequency generator generating the plurality of center frequencies using the reference frequency and the compensation frequency. Therefore, by compensating for the influence of a frequency offset of an oscillation frequency on the generation of center frequencies, it is possible to generate stable center frequencies.Type: GrantFiled: September 23, 2005Date of Patent: September 18, 2007Assignee: Samsung Electronics Co., Ltd.Inventors: Woo-kyung Lee, Jae-hyun Koo, Wan-jin Kim
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Publication number: 20070081613Abstract: An ultra wideband network transmitter and receiver, and a method capable of switching to a high-speed mode or a low-speed mode are provided. The transmitter includes a multi-band orthogonal frequency division multiplexing (MB-OFDM) modem; a direct sequence code division multiple access (DS-CDMA) modem; a mode switch which switches to the MB-OFDM modem or the DS-CDMA modem according to a mode control signal; a phase lock loop (PLL) which locks a frequency used for MB-OFDM type modulation or the DS-CDMA type modulation; and a central processing unit (CPU) controls the PLL and mode switch. The receiver includes an MB-OFDM modem; an DS-CDMA modem; an automatic gain controller; an analog-to-digital converter; an PLL; a mode switch; and an CPU. The method includes receiving a command to transmit data; and switching to an MB-OFDM modem to select to a high-speed operation mode.Type: ApplicationFiled: July 21, 2006Publication date: April 12, 2007Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Wan-jin Kim, Jae-hyun Koo
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Patent number: 7129867Abstract: A DC offset correction apparatus and method of a receiver in a multiband-hopping communication system is provided. The DC offset correction apparatus of the receiver in the communication system which hops to a plurality of bands, includes a controller for generating and outputting a plurality of DC offset correction signals different from each other for the respective bands; a plurality of digital-to-analog converters (DACs) for receiving, digital-to-analog converting and outputting the plurality of the DC offset correction signals from the controller; an analog multiplexer (MUX) for switching to output one of the plurality of the DC offset correction signals output from the plurality of the DACs, respectively; and an adder for adding and outputting an input signal with the output signal of the analog MUX. Accordingly, the DC offset correction apparatus can be implemented by low-speed DACs and the fast analog MUX that are relatively small-sized and low-cost elements.Type: GrantFiled: July 5, 2005Date of Patent: October 31, 2006Assignee: Samsung Electronics Co., Ltd.Inventors: Wan-jin Kim, Jae-hyun Koo
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Publication number: 20060140314Abstract: A signal acquisition apparatus and method for reducing a false alarm rate are disclosed. The apparatus includes a comparator for detecting a first peak by comparing a correlation value of a received signal with a first threshold and detecting second peaks in a sample interval of the detected first peak based on a second threshold which is different from the first threshold. Thus, a signal is acquired based on a number of the detected second peaks. Accordingly, the false alarm rate due to the noise can be reduced while the detection probability is maintained even at a high SNR.Type: ApplicationFiled: December 23, 2005Publication date: June 29, 2006Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Yun-young Kim, Jae-hyun Koo, Yeon-gon Cho, Jae-ho Roh
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Publication number: 20060083326Abstract: A multi-band orthogonal frequency division multiplexing (OFDM) system transmits the same symbol at least two times, and a receiving end can receive transmission data from a transmitting end accurately even when an error occurs from a wireless resource used by the multi-band OFDM system. To this end, the multi-band OFDM system has a transmitting end which selects one among at least three symbols being repetitively transmitted at least two times, and transmits the selected symbol by using different wireless resources so that the selected symbol is not consecutively transmitted, and a receiving end which receives the symbols from the transmitting end.Type: ApplicationFiled: October 17, 2005Publication date: April 20, 2006Inventors: Jae-ho Roh, Jae-hyun Koo, Sung-hyun Chung, Jae-min Ahn, Min-Joong Rim
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Publication number: 20060077887Abstract: A method is provided for reducing error occurring when a receiving end of a multiband OFDM system estimates original data from the received data. The multiband OFDM system, which transmits data using at last two radio resources, maps the data to at least two mapping data among a plurality of mapping data not to overlap each other and transmits the mapped data at least two times.Type: ApplicationFiled: October 12, 2005Publication date: April 13, 2006Inventors: Jae-ho Roh, Jae-hyun Koo
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Publication number: 20060072689Abstract: Disclosed is a matched filter and a method for performing cross correlation thereof. The matched filter includes a demultiplexer for demultiplexing an input sample signal into a predetermined number of signals; and cross correlators that perform a cross correlation of each of the demultiplexed sample signals with a predetermined sequence. Therefore, when the matched filter of the present invention is applied to a UWB system having a high sampling rate, the cross correlation operation can be performed at a high rate simply by using low-rate multipliers.Type: ApplicationFiled: September 28, 2005Publication date: April 6, 2006Inventors: Yun-young Kim, Sung-hyun Chung, Jae-min Ahn, Min-joong Rim, Jae-ho Roh, Jae-hyun Koo
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Publication number: 20060068720Abstract: A frequency generation apparatus and a method are provided. The frequency generation apparatus for generating a plurality of center frequencies for use in multi-band hopping communication, includes: an oscillator generating an oscillation frequency; a reference frequency generator multiplying the oscillation frequency by a first multiplication rate to generate a reference frequency; a compensation frequency generator multiplying the oscillation frequency by a second multiplication rate to generate a compensation frequency for compensating for the influence of a frequency offset of the oscillation frequency; and a center frequency generator generating the plurality of center frequencies using the reference frequency and the compensation frequency. Therefore, by compensating for the influence of a frequency offset of an oscillation frequency on the generation of center frequencies, it is possible to generate stable center frequencies.Type: ApplicationFiled: September 23, 2005Publication date: March 30, 2006Inventors: Woo-kyung Lee, Jae-hyun Koo, Wan-jin Kim
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Publication number: 20060001558Abstract: A DC offset correction apparatus and method of a receiver in a multiband-hopping communication system is provided. The DC offset correction apparatus of the receiver in the communication system which hops to a plurality of bands, includes a controller for generating and outputting a plurality of DC offset correction signals different from each other for the respective bands; a plurality of digital-to-analog converters (DACs) for receiving, digital-to-analog converting and outputting the plurality of the DC offset correction signals from the controller; an analog multiplexer (MUX) for switching to output one of the plurality of the DC offset correction signals output from the plurality of the DACs, respectively; and an adder for adding and outputting an input signal with the output signal of the analog MUX. Accordingly, the DC offset correction apparatus can be implemented by low-speed DACs and the fast analog MUX that are relatively small-sized and low-cost elements.Type: ApplicationFiled: July 5, 2005Publication date: January 5, 2006Inventors: Wan-jin Kim, Jae-hyun Koo
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Publication number: 20050271154Abstract: A method for seamlessly receiving a symbol from a transmitting end at a receiving end even when error occurs in a certain radio resource of a multiband OFDM system that transmits a same symbol at least two times. The multiband OFDM system includes a transmitting end selecting two radio resources from at least three radio resources and consecutively transmitting a symbol using the selected radio resources, and a receiving end receiving the symbol from the transmitting end.Type: ApplicationFiled: June 8, 2005Publication date: December 8, 2005Inventors: Jae-ho Roh, Jae-hyun Koo, Jae-Min Ahn, Min-joong Rim, Sung-hyun Chung
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Publication number: 20050246616Abstract: A system, an apparatus and a method for transmitting/receiving data coded by a low density parity check matrix code are provided. The apparatus for transmitting data coded by a low density parity check code includes: a low density parity check encoder for encoding input data based on the low density parity check code; and a bit puncturer for puncturing columns in an order of columns which least degrade a performance caused by puncturing in the low density check code according to a code rate of an output data. Accordingly, the low density parity check code having superior performance can be implemented to the next generation mobile communication system supporting various code rates.Type: ApplicationFiled: April 22, 2005Publication date: November 3, 2005Inventors: Eoi-Young Choi, Jaehong Kim, Jae-hyun Koo, Seung-bum Suh