Patents by Inventor Cheol-Woong Lee
Cheol-Woong Lee 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: 11973106Abstract: A semiconductor device includes a lower electrode; a supporter supporting an outer wall of the lower electrode; a dielectric layer formed on the lower electrode and the supporter; an upper electrode on the dielectric layer; a first interfacial layer disposed between the lower electrode and the dielectric layer and selectively formed on a surface of the lower electrode among the lower electrode and the supporter; and a second interfacial layer disposed between the dielectric layer and the upper electrode, wherein the first interfacial layer is a stack of a metal oxide contacting the lower electrode and a metal nitride contacting the dielectric layer.Type: GrantFiled: July 5, 2022Date of Patent: April 30, 2024Assignee: SK hynix Inc.Inventors: Jae Hee Song, Dong Hyun Lee, Kyung Woong Park, Cheol Hwan Park, Ki Vin Im
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Publication number: 20230231791Abstract: An electronic device and a method of improving a performance of a software-defined networking (SDN) of the electronic device are provided. The method includes: identifying at least one policy from a flow table of the software-defined networking; identifying performance index parameters based on information about the at least one policy; determining whether or not an improvement in the performance of the software-defined networking is required based on the performance index parameters and a target performance index; when the improvement in the performance of the software-defined networking is determined to be required, executing a predetermined algorithm based on information about the performance index parameters to check execution information about the at least one policy; and updating the at least one policy based on the execution information.Type: ApplicationFiled: September 30, 2022Publication date: July 20, 2023Inventors: Sangyoon OH, Byeong Hee ROH, Dae Gun YOON, Cheol Woong LEE, Kyung Woo KIM
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Patent number: 10998351Abstract: Disclosed are a source drive integrated circuit (IC), a method of manufacturing the same, and a display apparatus including the source drive IC. The source drive IC includes a core portion, a first channel portion disposed outside one side of the core portion, a second channel portion disposed outside the other side of the core portion, a first resistor string provided inward from the one side of the core portion to generate a plurality of gamma voltages, a first resistance corrector provided between the first resistor string and the first channel portion, and a first connection line extending from the first resistor string to each of the first channel portion and the second channel portion and transferring the plurality of gamma voltages to the first channel portion and the second channel portion. The first connection line extends to the first channel portion via the first resistance corrector.Type: GrantFiled: July 17, 2019Date of Patent: May 4, 2021Assignee: SILICON WORKS CO., LTD.Inventors: Myeong Woo Oh, Cheol Woong Lee, Byeong Jae Park, Dong Geon Lee, Tae Woo Ryu
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Patent number: 10923069Abstract: Disclosed is a source drive integrated circuit comprising: a core unit, a channel processing unit provided in each of a channel area disposed in a first side of the control area and a channel area disposed in a second side of the control area facing the first side to convert digital data, corresponding to a digital image signal transferred from the core unit, into a data voltage corresponding to an analog image signal and to output the data voltage, a resistor string provided in at least one of a pad area disposed in a third side of the control area and a pad area disposed in a fourth side of the control area facing the third side to generate a gamma voltage for converting the digital data into the data voltage and to supply the gamma voltage to the channel processing unit, and N number of gamma pads.Type: GrantFiled: July 16, 2019Date of Patent: February 16, 2021Assignee: SILICON WORKS CO., LTD.Inventors: Myeong Woo Oh, Cheol Woong Lee, Jae Sup Han, Hee Ju Kwak, Kyu Hyeong Lee
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Publication number: 20200027905Abstract: Disclosed are a source drive integrated circuit (IC), a method of manufacturing the same, and a display apparatus including the source drive IC. The source drive IC includes a core portion, a first channel portion disposed outside one side of the core portion, a second channel portion disposed outside the other side of the core portion, a first resistor string provided inward from the one side of the core portion to generate a plurality of gamma voltages, a first resistance corrector provided between the first resistor string and the first channel portion, and a first connection line extending from the first resistor string to each of the first channel portion and the second channel portion and transferring the plurality of gamma voltages to the first channel portion and the second channel portion. The first connection line extends to the first channel portion via the first resistance corrector.Type: ApplicationFiled: July 17, 2019Publication date: January 23, 2020Inventors: Myeong Woo OH, Cheol Woong LEE, Byeong Jae PARK, Dong Geon LEE, Tae Woo RYU
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Publication number: 20200027419Abstract: Disclosed is a source drive integrated circuit comprising: a core unit, a channel processing unit provided in each of a channel area disposed in a first side of the control area and a channel area disposed in a second side of the control area facing the first side to convert digital data, corresponding to a digital image signal transferred from the core unit, into a data voltage corresponding to an analog image signal and to output the data voltage, a resistor string provided in at least one of a pad area disposed in a third side of the control area and a pad area disposed in a fourth side of the control area facing the third side to generate a gamma voltage for converting the digital data into the data voltage and to supply the gamma voltage to the channel processing unit, and N number of gamma pads.Type: ApplicationFiled: July 16, 2019Publication date: January 23, 2020Inventors: Myeong Woo OH, Cheol Woong LEE, Jae Sup HAN, Hee Ju KWAK, Kyu Hyeong LEE
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Patent number: 9905922Abstract: Techniques for improving coverage of an antenna system are disclosed. In an aspect, a wireless device includes a 3-D antenna system to improve coverage and enhance performance. The 3-D antenna system includes antenna elements formed on multiple planes pointing in different spatial directions. Antenna elements formed on the multiple planes are associated with different antenna beams, which can provide a larger line-of-sight (LOS) coverage for the wireless device. Beamforming may be performed for the antennas on a given plane to further improve LOS coverage. Non-LOS (NLOS) coverage may also improve since antenna beams pointing in different spatial directions may result in reflected signals of higher power levels due to better signal reflection for some antenna beams.Type: GrantFiled: August 31, 2011Date of Patent: February 27, 2018Assignee: QUALCOMM IncorporatedInventors: Cheol-Woong Lee, Mohammad A. Tassoudji, Roger Brockenbrough
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Patent number: 9331632Abstract: An integrated circuit is described. The integrated circuit includes millimeter-wavelength transceiver circuitry. The millimeter-wavelength transceiver circuitry includes a local oscillator that generates a millimeter-wavelength oscillator signal. The millimeter-wavelength transceiver circuitry also includes mixers coupled to the local oscillator. The mixers are within an area without millimeter-wavelength structures. The mixers convert signals based on the millimeter-wavelength oscillator signal.Type: GrantFiled: June 7, 2012Date of Patent: May 3, 2016Assignee: QUALCOMM IncorporatedInventor: Cheol-Woong Lee
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Patent number: 9196931Abstract: Disclosed herein is a secondary battery pack including a battery cell, a protection circuit module (PCM) assembly having a connection member (A), an insulative mounting member having a connection member (B) embedded therein, and an insulative cap. The connection member (B) is coupled to a second electrode terminal of the battery cell by welding, such that the connection member (B) is electrically connected to the second electrode terminal of the battery cell, in a state in which the insulative mounting member is mounted on the battery cell. The connection member (A) is coupled to a first electrode terminal of the battery cell upward from a PCM, such that the connection member (A) is electrically connected to the first electrode terminal of the battery cell. The electrical connection between the PCM assembly and the connection member (B) is achieved in a physical contact fashion.Type: GrantFiled: December 4, 2014Date of Patent: November 24, 2015Assignee: LG CHEM, LTD.Inventors: Ju-Hwan Baek, Ki Eob Moon, Soonkwang Jung, Cheol Woong Lee
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Patent number: 9065491Abstract: In a particular embodiment, a method of generating in-phase (I) and quadrature-phase (Q) signals includes generating a first I output signal based on a first I input signal, a second I input signal, a first Q input signal, and a second Q input signal. The method further includes generating a second I output signal based on the first I input signal, the second I input signal, the first Q input signal, and the second Q input signal. A first Q output signal is generated based on the first I input signal, the second I input signal, the first Q input signal, and the second Q input signal. A second Q output signal is generated based on the first I input signal, the second I input signal, the first Q input signal, and the second Q input signal. According to further embodiments, an apparatus is disclosed.Type: GrantFiled: March 8, 2013Date of Patent: June 23, 2015Assignee: QUALCOMM IncorporatedInventors: Cheol-Woong Lee, Saihua Lin, Roger Brockenbrough
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Publication number: 20150086835Abstract: Disclosed herein is a secondary battery pack including a battery cell, a protection circuit module (PCM) assembly having a connection member (A), an insulative mounting member having a connection member (B) embedded therein, and an insulative cap. The connection member (B) is coupled to a second electrode terminal of the battery cell by welding, such that the connection member (B) is electrically connected to the second electrode terminal of the battery cell, in a state in which the insulative mounting member is mounted on the battery cell. The connection member (A) is coupled to a first electrode terminal of the battery cell upward from a PCM, such that the connection member (A) is electrically connected to the first electrode terminal of the battery cell. The electrical connection between the PCM assembly and the connection member (B) is achieved in a physical contact fashion.Type: ApplicationFiled: December 4, 2014Publication date: March 26, 2015Applicant: LG CHEM, LTD.Inventors: Ju-Hwan BAEK, Ki Eob MOON, Soonkwang JUNG, Cheol Woong LEE
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Patent number: 8936867Abstract: Disclosed herein is a secondary battery pack including a battery cell, a protection circuit module (PCM) assembly having a connection member (A), an insulative mounting member having a connection member (B) embedded therein, and an insulative cap. The connection member (B) is coupled to a second electrode terminal of the battery cell by welding, such that the connection member (B) is electrically connected to the second electrode terminal of the battery cell, in a state in which the insulative mounting member is mounted on the battery cell. The connection member (A) is coupled to a first electrode terminal of the battery cell upward from a PCM, such that the connection member (A) is electrically connected to the first electrode terminal of the battery cell. The electrical connection between the PCM assembly and the connection member (B) is achieved in a physical contact fashion.Type: GrantFiled: November 14, 2008Date of Patent: January 20, 2015Assignee: LG Chem, Ltd.Inventors: Ju-Hwan Baek, Ki Eob Moon, Soonkwang Jung, Cheol Woong Lee
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Publication number: 20140179245Abstract: In a particular embodiment, a method of generating in-phase (I) and quadrature-phase (Q) signals includes generating a first I output signal based on a first I input signal, a second I input signal, a first Q input signal, and a second Q input signal. The method further includes generating a second I output signal based on the first I input signal, the second I input signal, the first Q input signal, and the second Q input signal. A first Q output signal is generated based on the first I input signal, the second I input signal, the first Q input signal, and the second Q input signal. A second Q output signal is generated based on the first I input signal, the second I input signal, the first Q input signal, and the second Q input signal. According to further embodiments, an apparatus is disclosed.Type: ApplicationFiled: March 8, 2013Publication date: June 26, 2014Applicant: QUALCOMM INCORPORATEDInventors: Cheol-Woong Lee, Saihua Lin, Roger Brockenbrough
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Patent number: 8729962Abstract: A millimeter wave power amplifier is disclosed. In an exemplary embodiment, a MM wave power amplifier (PA) includes a plurality of amplifier stages coupled together to receive a MM wave input signal and produce an amplified MM wave output signal, and one or more feedback elements coupled across the amplifier stages, each feedback element coupled across an odd number of the amplifier stages to increase an operating bandwidth of the PA.Type: GrantFiled: December 15, 2011Date of Patent: May 20, 2014Assignee: QUALCOMM IncorporatedInventors: Saihua Lin, Yongwang Ding, Cheol-Woong Lee
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Patent number: 8703309Abstract: Disclosed herein is a battery pack including a battery cell, an insulative mounting member coupled to the battery cell in a specific coupling structure, a positive temperature coefficient (PTC) element having a lower connection plate directly coupled to the battery cell while the lower connection plate is not bent, and an insulative cap, whereby the number of the members for electrical connection and electrical insulation is reduced, with the result that the assembly process of the battery pack is greatly simplified, the dead space is reduced, with the result that the capacity of the battery in the same-sized battery pack is maximized, and the structural stability of the battery pack against an external force is improved.Type: GrantFiled: November 23, 2007Date of Patent: April 22, 2014Assignee: LG Chem, Ltd.Inventors: Cheol Woong Lee, Ki eob Moon
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Patent number: 8623542Abstract: Disclosed herein is a protection circuit module (PCM) including a protection circuit for controlling overcharge, overdischarge, and overcurrent of a battery, wherein a pair of connection members are attached to the bottom of the PCM, while the connection members are electrically connected to the protection circuit, the connection members being constructed by bending a sheet material into a predetermined shape, to form groove-shaped connection structures into which plate-shaped electrode terminals of a battery cell are inserted and coupled. Each of the connection members includes a lower connection plate, a pair of rear extensions, and front extensions.Type: GrantFiled: November 14, 2008Date of Patent: January 7, 2014Assignee: LG Chem, Ltd.Inventors: Ju-Hwan Baek, Cheol Woong Lee
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Publication number: 20130281029Abstract: An integrated circuit is described. The integrated circuit includes millimeter-wavelength transceiver circuitry. The millimeter-wavelength transceiver circuitry includes a local oscillator that generates a millimeter-wavelength oscillator signal. The millimeter-wavelength transceiver circuitry also includes mixers coupled to the local oscillator. The mixers are within an area without millimeter-wavelength structures. The mixers convert signals based on the millimeter-wavelength oscillator signal.Type: ApplicationFiled: June 7, 2012Publication date: October 24, 2013Applicant: QUALCOMM INCORPORATEDInventor: Cheol-Woong Lee
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Patent number: 8415044Abstract: A label indicating exposure to water is disposed in a plastic member of the battery. The label is prevented from being separated and disappeared and from being exchanged or modified arbitrarily by a battery user by having an edge of the label molded to the battery case.Type: GrantFiled: August 13, 2010Date of Patent: April 9, 2013Assignee: LG Chem, Ltd.Inventors: Jae Sik Chung, Ki Eob Moon, Seog Jin Yoon, Cheol Woong Lee
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Patent number: 8400218Abstract: A current mode power amplifier includes a current steering stage configured to steer a scaled current based on differential voltage inputs, a filtered current mirror connected to the current steering stage to receive the scaled current and produce a filtered output current, and a resonant load configured to receive the output current and generate an output voltage signal for transmission.Type: GrantFiled: November 15, 2010Date of Patent: March 19, 2013Assignee: QUALCOMM, IncorporatedInventors: Cheol-Woong Lee, Sunghyun Park, Jonghoon Choi
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Publication number: 20130050056Abstract: Techniques for improving coverage of an antenna system are disclosed. In an aspect, a wireless device includes a 3-D antenna system to improve coverage and enhance performance. The 3-D antenna system includes antenna elements formed on multiple planes pointing in different spatial directions. Antenna elements formed on the multiple planes are associated with different antenna beams, which can provide a larger line-of-sight (LOS) coverage for the wireless device. Beamforming may be performed for the antennas on a given plane to further improve LOS coverage. Non-LOS (NLOS) coverage may also improve since antenna beams pointing in different spatial directions may result in reflected signals of higher power levels due to better signal reflection for some antenna beams.Type: ApplicationFiled: August 31, 2011Publication date: February 28, 2013Applicant: QUALCOMM INCORPORATEDInventors: Cheol-Woong Lee, Mohammad A. Tassoudji, Roger Brockenbrough