Patents by Inventor Woon Hwang
Woon Hwang 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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Publication number: 20240002662Abstract: Disclosed is a polyphenylene sulfide resin composition for an automobile part that includes 30 to 40 parts by weight of a glass fiber, 10 to 20 parts by weight of glass bead, and 5 to 10 parts by weight of a polyolefin resin for each 100 parts by weight of a polyphenylene sulfide resin.Type: ApplicationFiled: December 12, 2022Publication date: January 4, 2024Applicants: HYUNDAI MOBIS CO., LTD., HYUNDAI Advanced Materials Co., Ltd.Inventors: Hyoung Taek KANG, Eun Chang LEE, Sang Gil LEE, Kwon Mo KOO, Sang Woon HWANG, Dong Ju KIM
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Publication number: 20230227648Abstract: The present invention relates to a resin molded product having excellent impact resistance and weather resistance and low dielectric loss and a RADAR module including the same, wherein the resin molded product has a permittivity of 3.7 F/m or less and a dielectric loss of 0.023 or less in the frequency range of 77 GHz, has a high-speed impact strength according to ASTM D3763 of 400 kg·m/s2 or greater, and has an electromagnetic wave transmission coefficient of ?0.8 dB or greater in the frequency range of 77 GHz to 79 GHz.Type: ApplicationFiled: December 23, 2022Publication date: July 20, 2023Applicants: HYUNDAI MOBIS Co., Ltd., HYUNDAI Advanced Materials Co., Ltd.Inventors: Hyoung Taek KANG, Seung Jun LEE, Chul Min SHIN, Eun Chang LEE, Seung Soo HONG, Sang Gil LEE, Kwon Mo KOO, Sang Woon HWANG
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Patent number: 10590524Abstract: Provided herein is an alloy steel in which carburization is prevented by a processing load, the alloy steel including: about 0.13 to 0.25 wt % of carbon (C), about 0.6 to 1.5 wt % of silicon (Si), about 0.6 to 1.5 wt % of manganese (Mn), about 1.5 to 3.0 wt % of chromium (Cr), about 0.01 to 0.1 wt % of niobium (Nb), about 0.01 to 0.1 wt % of aluminum (Al), about 0.05 to 0.5 wt % of vanadium (V), the balance iron (Fe), and impurities, based on the total weight of the alloy steel.Type: GrantFiled: July 26, 2017Date of Patent: March 17, 2020Assignees: Hyundai Motor Company, Kia Motors CompanyInventors: Jae-Hong Park, Min-Woo Kang, Jae-Woon Hwang, Hyun-Kyu Kim
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Patent number: 10256781Abstract: A complementary metal oxide silicon transceiver having an integrated power amplifier is provided. The complementary metal oxide silicon transceiver having the integrated power amplifier is capable of controlling an output power according to a communication environment to solve the following problem that with the increment of an output level of a power amplifier, performance is decreased when noises flow into other blocks of a transceiver with power and thus are inputted to the power amplifier.Type: GrantFiled: January 23, 2018Date of Patent: April 9, 2019Assignee: FCI INC.Inventors: Dong Hyun Ko, Min Chul Kang, Myung Woon Hwang
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Patent number: 10110174Abstract: An adaptive power amplifier and a radio frequency transmitter thereof are described. The radio frequency transmitter is a transmitter to transmit a transmission signal for a wireless communication system. The radio frequency transmitter includes at least one direct-current (DC) to direct-current (DC) converter coupled to an external power supply device for operation, a digital-to-analog converter configured to convert a digital signal into an analog signal, a filter configured to filter a harmonic component of the analog signal to generate an input signal, a RF up-converter configured to up-convert the input signal according to a desired channel frequency for generating a modulated signal, and a power amplifying circuit coupled to the DC-to-DC converter and the external power supply device, for selectively receiving one of different supply voltages for operation, and amplifying the modulated signal to generate a RF output signal.Type: GrantFiled: April 12, 2017Date of Patent: October 23, 2018Assignee: FCI INC.Inventors: Min-Chul Kang, Myung-Woon Hwang
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Publication number: 20180212574Abstract: A complementary metal oxide silicon transceiver having an integrated power amplifier is provided. The complementary metal oxide silicon transceiver having the integrated power amplifier is capable of controlling an output power according to a communication environment to solve the following problem that with the increment of an output level of a power amplifier, performance is decreased when noises flow into other blocks of a transceiver with power and thus are inputted to the power amplifier.Type: ApplicationFiled: January 23, 2018Publication date: July 26, 2018Inventors: Dong Hyun KO, Min Chul KANG, Myung Woon HWANG
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Publication number: 20180187295Abstract: Provided herein is an alloy steel in which carburization is prevented by a processing load, the alloy steel including: about 0.13 to 0.25 wt % of carbon (C), about 0.6 to 1.5 wt % of silicon (Si), about 0.6 to 1.5 wt % of manganese (Mn), about 1.5 to 3.0 wt % of chromium (Cr), about 0.01 to 0.1 wt % of niobium (Nb), about 0.01 to 0.1 wt % of aluminum (Al), about 0.05 to 0.5 wt % of vanadium (V), the balance iron (F), and impurities, based on the total weight of the alloy steel.Type: ApplicationFiled: July 26, 2017Publication date: July 5, 2018Applicants: Hyundai Motor Company, Kia Motors CorporationInventors: Jae-Hong Park, Min-Woo KANG, Jae-Woon HWANG, Hyun-Kyu KIM
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Patent number: 9991853Abstract: A dual operation mode power amplifier is disclosed. In the power amplifier in accordance with an embodiment of the present invention, a bias circuit part can be converted to decrease power consumption. Different from the prior art, performance of the present invention is not reduced in a high power mode, and no additional passive components like inductors or transformers with a large area are necessary to be further added. Furthermore, a tunable impedance matching circuit provides impedances respectively matching impedances of a fully differential amplifier and a single-ended amplifier, thereby improving the performance of the power amplifier.Type: GrantFiled: October 27, 2016Date of Patent: June 5, 2018Assignee: FCI INCInventors: Min-Chul Kang, Myung-Woon Hwang
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Patent number: 9976806Abstract: A method for manufacturing reduced iron using the same, and more particularly, to a burning apparatus heating a coal briquette to manufacture reduced iron, which includes a first burning furnace heating the coal briquette while moving the truck accommodating the coal briquette along a linear movement path; a second burning furnace connected to the other side of the first burning furnace, and heating the coal briquette while moving the coal briquette discharged from the truck along an annular path; and a cooling device connected to the second burning furnace, and cooling the reduced iron while moving reduced iron reduced in the second burning furnace along an annular path. The burning apparatus circulates exhaust gases generated in the burning furnace and cooling device to control a temperature and an oxygen concentration and thus improves a metallization rate of the reduced iron.Type: GrantFiled: October 29, 2014Date of Patent: May 22, 2018Assignee: POSCOInventors: Sang Han Son, Jong In Park, Min Kyu Wang, Byung Woon Hwang
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Patent number: 9935587Abstract: An inductor-less low noise amplifier (LNA) with high linearity is disclosed. The low noise amplifier includes: an input signal stage receiving an input signal; a first amplifier configured to receive the input signal, generate a first amplification signal by amplifying the received input signal, and output the generated first amplification signal, as a first output signal, to a first output terminal; a second amplifier configured to receive the input signal, generate a second amplification signal by amplifying the received input signal, and output the generated second amplification signal, as a second output signal, to a second output terminal; an output signal stage outputting a superimposition signal obtained by superimposing the first output signal and the second output signal; a first resistor feeding back the superimposition signal to the input signal stage; and a switch connecting/disconnecting between the input signal stage and the output signal stage.Type: GrantFiled: May 2, 2016Date of Patent: April 3, 2018Assignee: FCI INCInventors: DongHyun Ko, Myung Woon Hwang
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Publication number: 20170294885Abstract: An adaptive power amplifier and a radio frequency transmitter thereof are described. The radio frequency transmitter is a transmitter to transmit a transmission signal for a wireless communication system. The radio frequency transmitter includes at least one direct-current (DC) to direct-current (DC) converter coupled to an external power supply device for operation, a digital-to-analog converter configured to convert a digital signal into an analog signal, a filter configured to filter a harmonic component of the analog signal to generate an input signal, a RF up-converter configured to up-convert the input signal according to a desired channel frequency for generating a modulated signal, and a power amplifying circuit coupled to the DC-to-DC converter and the external power supply device, for selectively receiving one of different supply voltages for operation, and amplifying the modulated signal to generate a RF output signal.Type: ApplicationFiled: April 12, 2017Publication date: October 12, 2017Inventors: Min-Chul KANG, Myung-Woon HWANG
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Publication number: 20170244367Abstract: An inductor-less low noise amplifier (LNA) with high linearity is disclosed. The low noise amplifier includes: an input signal stage receiving an input signal; a first amplifier configured to receive the input signal, generate a first amplification signal by amplifying the received input signal, and output the generated first amplification signal, as a first output signal, to a first output terminal; a second amplifier configured to receive the input signal, generate a second amplification signal by amplifying the received input signal, and output the generated second amplification signal, as a second output signal, to a second output terminal; an output signal stage outputting a superimposition signal obtained by superimposing the first output signal and the second output signal; a first resistor feeding back the superimposition signal to the input signal stage; and a switch connecting/disconnecting between the input signal stage and the output signal stage.Type: ApplicationFiled: May 2, 2016Publication date: August 24, 2017Inventors: DongHyun KO, Myung Woon HWANG
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Patent number: 9692369Abstract: The present invention discloses a low-noise amplifier having a characteristic of high linearity for multi-band. Embodiments of the present invention is to provide a low-noise amplifier (LNA), which realizes a balun function and a preamplifier function of mixer in the low-noise amplifier (LNA), and minimizes the factors reducing the linearity between the low-noise amplifier (LNA) and the mixer.Type: GrantFiled: November 9, 2015Date of Patent: June 27, 2017Assignee: FCI, INCInventors: Dong Hyun Ko, Myung Woon Hwang
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Publication number: 20170126185Abstract: A dual operation mode power amplifier is disclosed. In the power amplifier in accordance with an embodiment of the present invention, a bias circuit part can be converted to decrease power consumption. Different from the prior art, performance of the present invention is not reduced in a high power mode, and no additional passive components like inductors or transformers with a large area are necessary to be further added. Furthermore, a tunable impedance matching circuit provides impedances respectively matching impedances of a fully differential amplifier and a single-ended amplifier, thereby improving the performance of the power amplifier.Type: ApplicationFiled: October 27, 2016Publication date: May 4, 2017Inventors: Min-Chul KANG, Myung-Woon HWANG
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Patent number: 9571136Abstract: An apparatus for receiving signals in a radio frequency system includes a low noise amplifier that amplifies and filters a signal received from an antenna; a first frequency mixer that mixes the signal output from the low noise amplifier and an oscillation signal supplied from a local oscillator to create a signal of an intermediate frequency; a second frequency mixer that mixes the signal of an intermediate frequency and one or more oscillation signals that have an offset added to have different frequency channels, which have a predetermined bandwidth, to create one or more signals of a baseband frequency; a channel selection filter that divides one or more signals generated in the second frequency mixer into one or more different frequency channels having a predetermined bandwidth using the offset; and an amplifier that amplifies the signals that have been filtered in the channel selection filter.Type: GrantFiled: March 20, 2015Date of Patent: February 14, 2017Assignee: FCI INC.Inventor: Myung-woon Hwang
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Publication number: 20160373065Abstract: The present invention discloses a low-noise amplifier having a characteristic of high linearity for multi-band. Embodiments of the present invention is to provide a low-noise amplifier (LNA), which realizes a balun function and a preamplifier function of mixer in the low-noise amplifier (LNA), and minimizes the factors reducing the linearity between the low-noise amplifier (LNA) and the mixer.Type: ApplicationFiled: November 9, 2015Publication date: December 22, 2016Inventors: Dong Hyun KO, Myung Woon HWANG
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Patent number: 9407275Abstract: Disclosed are an apparatus for lock detection suitable for a fractional-N frequency synthesizer and a method thereof. The lock detector for use in the fractional-N frequency synthesizer includes a delay unit delaying an N-divider output frequency clock based on an output value of a fraction ratio modulator, a lock detection unit outputting a lock detection signal by comparing a reference frequency clock with the N-divider output frequency clock delayed by the delay unit, a counter counting the number of lock detection signals received from the lock detection unit, and a controller issuing a command to output a lock identification signal based on the number of lock detection signals counted by the counter.Type: GrantFiled: May 18, 2015Date of Patent: August 2, 2016Assignee: FCI, Inc.Inventors: Je Cheol Moon, Myung Woon Hwang
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Publication number: 20160211854Abstract: Disclosed are an apparatus for lock detection suitable for a fractional-N frequency synthesizer and a method thereof. The lock detector for use in the fractional-N frequency synthesizer includes a delay unit delaying an N-divider output frequency clock based on an output value of a fraction ratio modulator, a lock detection unit outputting a lock detection signal by comparing a reference frequency clock with the N-divider output frequency clock delayed by the delay unit, a counter counting the number of lock detection signals received from the lock detection unit, and a controller issuing a command to output a lock identification signal based on the number of lock detection signals counted by the counter.Type: ApplicationFiled: May 18, 2015Publication date: July 21, 2016Applicant: FCI Inc.Inventors: Je Cheol Moon, Myung Woon Hwang
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Publication number: 20160173143Abstract: An apparatus for receiving signals in a radio frequency system includes a low noise amplifier that amplifies and filters a signal received from an antenna; a first frequency mixer that mixes the signal output from the low noise amplifier and an oscillation signal supplied from a local oscillator to create a signal of an intermediate frequency; a second frequency mixer that mixes the signal of an intermediate frequency and one or more oscillation signals that have an offset added to have different frequency channels, which have a predetermined bandwidth, to create one or more signals of a baseband frequency; a channel selection filter that divides one or more signals generated in the second frequency mixer into one or more different frequency channels having a predetermined bandwidth using the offset; and an amplifier that amplifies the signals that have been filtered in the channel selection filter.Type: ApplicationFiled: March 20, 2015Publication date: June 16, 2016Inventor: Myung-woon HWANG
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Publication number: 20150115508Abstract: The present invention relates to a burning apparatus and a method for manufacturing reduced iron using the same, and more particularly, to a burning apparatus heating a coal briquette to manufacture reduced iron, which includes a first burning furnace heating the coal briquette while moving the truck accommodating the coal briquette along a linear movement path; a second burning furnace connected to the other side of the first burning furnace, and heating the coal briquette while moving the coal briquette discharged from the truck along an annular path; and a cooling device connected to the second burning furnace, and cooling the reduced iron while moving reduced iron reduced in the second burning furnace along an annular path. The burning apparatus circulates exhaust gases generated in the burning furnace and cooling device to control a temperature and an oxygen concentration and thus improves a metallization rate of the reduced iron.Type: ApplicationFiled: October 29, 2014Publication date: April 30, 2015Inventors: Sang Han SON, Jong In PARK, Min Kyu WANG, Byung Woon HWANG