Patents by Inventor Seong-Mo Yim
Seong-Mo Yim 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: 20240125908Abstract: A method for manufacturing a LiDAR device is proposed. The method may include providing a LiDAR module including a laser emitting module and a laser detecting module to a target region. The method may also include adjusting, on the basis of first detecting data obtained from the laser detecting module, a relative position of a detecting optic module with respect to the laser detecting module. The method may further include adjusting, on the basis of image data obtained from at least one image sensor, a relative position of an emitting optic module with respect to the laser emitting module.Type: ApplicationFiled: December 21, 2023Publication date: April 18, 2024Inventors: Chan M LIM, Dong Kyu KIM, Chang Mo JEONG, Hoon Il JEONG, Eunsung KWON, Junhyun JO, Bumsik WON, Suwoo NOH, Sang Shin BAE, Seong Min YUN, Jong Hyun YIM
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Patent number: 10581534Abstract: A noise cancellation system comprises a first noise cancellation apparatus configured to process an I-channel signal, wherein an I-channel differential mode second-order intermodulation component and an I-channel common mode second-order intermodulation component cancel each other in the first noise cancellation apparatus and a second noise cancellation apparatus configured to process a Q-channel signal, wherein a Q-channel differential mode second-order intermodulation component and a Q-channel common mode second-order intermodulation component cancel each other in the second noise cancellation apparatus.Type: GrantFiled: October 27, 2017Date of Patent: March 3, 2020Assignee: Futurewei Technologies, Inc.Inventors: Ping Yin, Robert Irvine, Seong-Mo Yim, Yusong Chi, Chengfang Liao, Feng Wang, Eric Sung
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Publication number: 20180069640Abstract: A noise cancellation system comprises a first noise cancellation apparatus configured to process an I-channel signal, wherein an I-channel differential mode second-order intermodulation component and an I-channel common mode second-order intermodulation component cancel each other in the first noise cancellation apparatus and a second noise cancellation apparatus configured to process a Q-channel signal, wherein a Q-channel differential mode second-order intermodulation component and a Q-channel common mode second-order intermodulation component cancel each other in the second noise cancellation apparatus.Type: ApplicationFiled: October 27, 2017Publication date: March 8, 2018Inventors: Ping Yin, Robert Irvine, Seong-Mo Yim, Yusong Chi, Chengfang Liao, Feng Wang, Eric Sung
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Patent number: 9806825Abstract: A noise cancellation system comprises an I-channel mixer configured to receive a radio frequency signal from an antenna and an intermediate frequency signal from a local oscillator, a Q-channel mixer configured to receive the radio frequency signal from the antenna and a phase-shifted intermediate frequency signal from the local oscillator, a first noise cancellation apparatus connected with the I-channel mixer, wherein an I-channel differential mode second-order intermodulation component and an I-channel common mode second-order intermodulation component cancel each other in the first noise cancellation apparatus and a second noise cancellation apparatus connected with the Q-channel mixer, wherein a Q-channel differential mode second-order intermodulation component and a Q-channel common mode second-order intermodulation component cancel each other in the second noise cancellation apparatus.Type: GrantFiled: April 18, 2016Date of Patent: October 31, 2017Assignee: Futurewei Technologies, Inc.Inventors: Ping Yin, Robert Irvine, Seong-Mo Yim, Yusong Chi, Chengfang Liao, Feng Wang, Eric Sung
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Publication number: 20160233968Abstract: A noise cancellation system comprises an I-channel mixer configured to receive a radio frequency signal from an antenna and an intermediate frequency signal from a local oscillator, a Q-channel mixer configured to receive the radio frequency signal from the antenna and a phase-shifted intermediate frequency signal from the local oscillator, a first noise cancellation apparatus connected with the I-channel mixer, wherein an I-channel differential mode second-order intermodulation component and an I-channel common mode second-order intermodulation component cancel each other in the first noise cancellation apparatus and a second noise cancellation apparatus connected with the Q-channel mixer, wherein a Q-channel differential mode second-order intermodulation component and a Q-channel common mode second-order intermodulation component cancel each other in the second noise cancellation apparatus.Type: ApplicationFiled: April 18, 2016Publication date: August 11, 2016Inventors: Ping Yin, Robert Irvine, Seong-Mo Yim, Yusong Chi, Chengfang Liao, Feng Wang, Eric Sung
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Patent number: 9319084Abstract: A noise cancellation structure comprises a trans-impedance stage couple to an output of a mixer of a receiver and a noise cancellation stage connected in parallel with the trans-impedance stage, wherein the noise cancellation stage comprises a first adjustable resistor and a second adjustable resistor connected in series with the first adjustable resistor, wherein the first adjustable resistor and the second adjustable resistor are configured such that the first adjustable resistor has a first resistance variation portion and the second adjustable resistor has a second resistance variation portion equal to the first resistance variation in an opposite direction and a magnitude of the first resistance variation is so selected that differential mode second-order noise and common mode second-order noise cancel each other.Type: GrantFiled: April 11, 2013Date of Patent: April 19, 2016Assignee: Futurewei Technologies, Inc.Inventors: Ping Yin, Robert Irvine, Seong-Mo Yim, Yusong Chi, Chengfang Liao, Feng Wang, Eric Sung
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Patent number: 8886144Abstract: A receiver compensation method comprising receiving a radio frequency signal, amplifying the radio frequency signal, thereby producing an amplified signal, compensating the amplified signal, thereby producing a compensated signal, and mixing the compensated signal, thereby producing a mixed compensated signal, wherein the mixed compensated signal has a first gain difference between a positive differential from a center frequency and a negative differential from the center frequency and wherein the first gain differential is smaller than a second gain differential that would be obtained by mixing the amplified signal without compensating the amplified signal.Type: GrantFiled: November 2, 2012Date of Patent: November 11, 2014Assignee: Futurewei Technologies, Inc.Inventors: Ping Yin, Seong-Mo Yim, Feng Wang, Robert Grant Irvine, Chengfang Liao, Yusong Chi
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Publication number: 20140274199Abstract: A noise cancellation structure comprises a trans-impedance stage couple to an output of a mixer of a receiver and a noise cancellation stage connected in parallel with the trans-impedance stage, wherein the noise cancellation stage comprises a first adjustable resistor and a second adjustable resistor connected in series with the first adjustable resistor, wherein the first adjustable resistor and the second adjustable resistor are configured such that the first adjustable resistor has a first resistance variation portion and the second adjustable resistor has a second resistance variation portion equal to the first resistance variation in an opposite direction and a magnitude of the first resistance variation is so selected that differential mode second-order noise and common mode second-order noise cancel each other.Type: ApplicationFiled: April 11, 2013Publication date: September 18, 2014Applicant: FutureWei Technologies, Inc.Inventors: Ping Yin, Robert Irvine, Seong-Mo Yim, Yusong Chi, Chengfang Liao, Feng Wang, Eric Sung
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Publication number: 20090115525Abstract: A frequency tunable low noise amplifier 100 providing multi-band operation includes an amplifier 110 and a frequency tunable input matching network 130 including at least one varactor 141, 142 coupled to an input of the amplifier 110. The input network receives a signal from a signal source 160. The input matching network 130 includes a control input 171 for providing an impedance match to the source 160. A frequency tunable output matching network 140 includes at least one varactor 181, 182 coupled to an output of the amplifier 110. The output matching network 140 also includes a control input 191 for providing an impedance match to a load 195.Type: ApplicationFiled: October 21, 2005Publication date: May 7, 2009Applicant: University of Florida Research Foundation, Inc.Inventors: Seong-Mo Yim, Kenneth Kyongyop O
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Patent number: 7474158Abstract: The present invention is a dual mode LNA that can operate in either normal mode or low-gain mode, which has been designed to maintain a constant input impedance when switching between the two modes of operation. Maintaining constant input impedance is called a dynamic match. The LNA has been designed to maintain a constant bandwidth when switching between normal and low-gain modes of operation. Also, the LNA has been designed to consume much less average current when operating in the low-gain mode.Type: GrantFiled: March 28, 2007Date of Patent: January 6, 2009Assignee: RF Micro Devices, Inc.Inventors: Seong-Mo Yim, Kelvin Kai Tuan Yan
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Publication number: 20080185625Abstract: A two-terminal capacitive circuit element 100 includes a MOS transistor including a source 126 and drain 127 separated by a body region 131, and a gate 105 separated from the body 129 by a gate insulator layer 110, and a bypass capacitor 125. The gate node (port2; 115) is AC grounded through the bypass capacitor 125 and the source 126 and drain 127 are tied together (port-1; 120). By toggling the transistor on and off using an appropriate gate to body voltage, the capacitance of the capacitive circuit element 100 between port-1 and port-2 significantly changes.Type: ApplicationFiled: September 12, 2005Publication date: August 7, 2008Applicant: UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INC.Inventors: Seong-Mo Yim, Kenneth Kyongyup O