Patents by Inventor Dae Young Yoon
Dae Young Yoon 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: 11957046Abstract: An electroluminescent device includes a first electrode and a second electrode facing each other; an emission layer disposed between the first electrode and the second electrode and including a plurality of quantum dots and a first hole transporting material having a substituted or unsubstituted C4 to C20 alkyl group attached to a backbone structure; a hole transport layer disposed between the emission layer and the first electrode and including a second hole transporting material; and an electron transport layer disposed between the emission layer and the second electrode.Type: GrantFiled: September 6, 2019Date of Patent: April 9, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Moon Gyu Han, Dae Young Chung, Kwanghee Kim, Eun Joo Jang, Chan Su Kim, Kun Su Park, Won Sik Yoon
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Publication number: 20220405682Abstract: In an inverse reinforcement learning-based delivery means detection apparatus and method according to a preferred embodiment of the present invention, an artificial neural network model may be trained by using an actual deliveryman's driving record and imitated driving record, and from a specific deliveryman's driving record, a delivery means of the corresponding deliveryman may be detected by using the trained artificial neural network model, so that a deliveryman suspected of being abusive may be identified.Type: ApplicationFiled: September 7, 2020Publication date: December 22, 2022Inventors: Dae Young Yoon, Jae ll Lee, Tae Hoon Kim
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Patent number: 11038546Abstract: An electronic device including: a modem configured to process a baseband signal; an intermediate frequency (IF) transceiver configured to convert the baseband signal provided from the modem into an IF band signal; and a radio frequency (RF) transceiver configured to convert the IF band signal provided from the IF transceiver into an RF band signal, wherein the RF transceiver includes a power amplifier configured to amplify the RF band signal, and a temperature sensor unit to detect a temperature of the power amplifier, and wherein the modem includes a controller configured to control an input power inputted to the RF transceiver based on the temperature of the power amplifier detected by the temperature sensor unit.Type: GrantFiled: May 1, 2020Date of Patent: June 15, 2021Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Dooseok Choi, Young Min Kim, Jei Young Lee, Dae Young Yoon, Sun Woo Lee
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Patent number: 10979150Abstract: A method of testing a radio frequency (RF) integrated circuit includes: forming, performed by the RF integrated circuit, a test loop that passes through a first transceiver circuit, a first front-end circuit, and a second transceiver circuit, based on a test control signal transmitted from a test device; adjusting, performed by the RF integrated circuit, a shift degree of at least one phase shifter in the first front-end circuit, based on the test control circuit; and receiving, performed by the RF integrated circuit, a test input signal via the first transceiver circuit from the test device, and outputting, to the test device, the test input signal that has passed through the test loop, wherein the test input signal is output as a test output signal via the second transceiver circuit.Type: GrantFiled: March 18, 2019Date of Patent: April 13, 2021Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Dooseok Choi, Dae-young Yoon, Sun-woo Lee, Thomas Byunghak Cho, Seung-chan Heo
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Publication number: 20210067191Abstract: An electronic device including: a modem configured to process a baseband signal; an intermediate frequency (IF) transceiver configured to convert the baseband signal provided from the modem into an IF band signal; and a radio frequency (RF) transceiver configured to convert the IF band signal provided from the IF transceiver into an RF band signal, wherein the RF transceiver includes a power amplifier configured to amplify the RF band signal, and a temperature sensor unit to detect a temperature of the power amplifier, and wherein the modem includes a controller configured to control an input power inputted to the RF transceiver based on the temperature of the power amplifier detected by the temperature sensor unit.Type: ApplicationFiled: May 1, 2020Publication date: March 4, 2021Inventors: Dooseok CHOI, Young Min KIM, Jei Young LEE, Dae Young YOON, Sun Woo LEE
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Publication number: 20190319717Abstract: A method of testing a radio frequency (RF) integrated circuit includes: forming, performed by the RF integrated circuit, a test loop that passes through a first transceiver circuit, a first front-end circuit, and a second transceiver circuit, based on a test control signal transmitted from a test device; adjusting, performed by the RF integrated circuit, a shift degree of at least one phase shifter in the first front-end circuit, based on the test control circuit; and receiving, performed by the RF integrated circuit, a test input signal via the first transceiver circuit from the test device, and outputting, to the test device, the test input signal that has passed through the test loop, wherein the test input signal is output as a test output signal via the second transceiver circuit.Type: ApplicationFiled: March 18, 2019Publication date: October 17, 2019Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Dooseok CHOI, Dae-young YOON, Sun-woo LEE, Thomas Byunghak CHO, Seung-chan HEO
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Patent number: 8300744Abstract: The present invention relates to an apparatus for rejecting images in a receiver. The apparatus of the present invention relates to an apparatus for rejecting image signals in a receiver of a direct conversion structure and comprises a signal mismatch compensation unit configured to detect gain error and phase error between an In-phase (I) signal and a Quadrature (Q) signal received through the receiver, to reject image signals existing in the I and Q signals, and to output a result. The signal mismatch compensation unit detects the gain error and the phase error using an adaptive step method of reducing the step size of the gain error and the phase error step by step whenever the gain error and the phase error are converged. According to the present invention, high image rejection ratio is achieved and the adaptation time taken to obtain a high image rejection ratio is reduced simultaneously.Type: GrantFiled: January 28, 2010Date of Patent: October 30, 2012Assignee: Korea Advanced Institute of Science and TechnologyInventors: Sun a Kim, Dae-Young Yoon, Sang-Gug Lee, Hyung-Chul Park, Jeong-seon Lee
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Patent number: 8285243Abstract: Provided is a low-power wake-up receiver that is sensitive to electric waves, by which power consumed by a radio frequency (RF) transceiver of a sensor node in a ubiquitous sensor network (USN) is minimized. A wake-up receiver waking up a main transceiver includes a duty cycle signal generation unit controlling a duty cycle of a duty cycle signal; a burst signal detection unit receiving an input signal including a burst signal and a data signal based on the duty cycle signal, amplifying the input signal, and, if the amplified input signal is the burst signal, outputting a control signal; and a data signal detection unit re-amplifying the amplified input signal based on the control signal, and, if the re-amplified input signal is the data signal, outputting a wake-up signal. Power supplied to the duty cycle signal generation unit is interrupted based on the control signal and power is re-supplied to the duty cycle signal generation unit based on the wake-up signal.Type: GrantFiled: December 3, 2008Date of Patent: October 9, 2012Assignees: Electronics and Telecommunications Research Institute, Korea Advanced Institute of Science and TechnologyInventors: Ho-Yong Kang, Dae-Young Yoon, Trung-Kien Nguyen, Ji-Eun Kim, Xiaohua Yu, Nae-Soo Kim, Cheol-Sig Pyo, Seok-Kyun Han, Sang-Gug Lee
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Patent number: 8170523Abstract: A low power super regenerative receiver and a method of reducing the power consumption of the low power super regenerative receiver are provided. The super regenerative receiver includes: an oscillator having a start-up time period starting oscillation that varies according to an existence of an input signal; and a power controller supplying power within the start-up time period of the oscillator.Type: GrantFiled: December 12, 2008Date of Patent: May 1, 2012Assignee: Electronics and Telecommunications Research InstituteInventors: Hoyong Kang, Xiaohua Yu, Ji Eun Kim, Trung Kien Nguyen, Dae Young Yoon, Nae Soo Kim, Cheol Sig Pyo, Seok Kyun Han, Sang Gug Lee
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Publication number: 20110182388Abstract: The present invention relates to an apparatus for rejecting images in a receiver. The apparatus of the present invention relates to an apparatus for rejecting image signals in a receiver of a direct conversion structure and comprises a signal mismatch compensation unit configured to detect gain error and phase error between an In-phase (I) signal and a Quadrature (Q) signal received through the receiver, to reject image signals existing in the I and Q signals, and to output a result. The signal mismatch compensation unit detects the gain error and the phase error using an adaptive step method of reducing the step size of the gain error and the phase error step by step whenever the gain error and the phase error are converged. According to the present invention, high image rejection ratio is achieved and the adaptation time taken to obtain a high image rejection ratio is reduced simultaneously.Type: ApplicationFiled: January 28, 2010Publication date: July 28, 2011Applicant: Korea Advanced Institute of Science and TechnologyInventors: Sun a. Kim, Dae-Young Yoon, Sang-Gug Lee, Hyung-Chul Park, Jeongseon Lee
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Publication number: 20110006824Abstract: Provided is a low-power wake-up receiver that is sensitive to electric waves, by which power consumed by a radio frequency (RF) transceiver of a sensor node in a ubiquitous sensor network (USN) is minimized. A wake-up receiver waking up a main transceiver includes a duty cycle signal generation unit controlling a duty cycle of a duty cycle signal; a burst signal detection unit receiving an input signal including a burst signal and a data signal based on the duty cycle signal, amplifying the input signal, and, if the amplified input signal is the burst signal, outputting a control signal; and a data signal detection unit re-amplifying the amplified input signal based on the control signal, and, if the re-amplified input signal is the data signal, outputting a wake-up signal. Power supplied to the duty cycle signal generation unit is interrupted based on the control signal and power is re-supplied to the duty cycle signal generation unit based on the wake-up signal.Type: ApplicationFiled: December 3, 2008Publication date: January 13, 2011Applicants: Electronics and Telecommunications Research Institute, Korea Advanced Institute of Science and TechnologyInventors: Ho-Yong Kang, Dae-Young Yoon, Trung-kien Nguyen, Ji-Eun Kim, Xiaohua Yu, Nae-Soo Kim, Cheol-Sig Pyo, Seok-Kyun Han, Sang-Gug Lee
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Patent number: 7817737Abstract: A method of generating multi-channel local oscillation frequencies in an ultra wide band communication system includes generating: at least one reference frequency, a plurality of auxiliary frequencies by dividing and multiplying the at least one reference frequency, and a plurality of first local oscillation frequencies by mixing the reference frequency and at least some of the plurality of auxiliary frequencies with other auxiliary frequencies.Type: GrantFiled: July 3, 2007Date of Patent: October 19, 2010Assignees: Samsung Electro-Mechanics Co., Ltd., Information & Communications UniversityInventors: Yuna Shim, Dae Young Yoon, Sang Gug Lee, Jeong Hoon Kim, Eung Ju Kim, Tah Joon Park
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Publication number: 20090156158Abstract: A low power super regenerative receiver and a method of reducing the power consumption of the low power super regenerative receiver are provided. The super regenerative receiver includes: an oscillator having a start-up time period starting oscillation that varies according to an existence of an input signal; and a power controller supplying power within the start-up time period of the oscillator.Type: ApplicationFiled: December 12, 2008Publication date: June 18, 2009Applicants: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, INFORMATION AND COMMUNICATIONS UNIVERSITY EDUCATIONAL FOUNDATIONInventors: Hoyong Kang, Xiaohua Yu, Ji Eun Kim, Trung Kien Nguyen, Dae Young Yoon, Nae Soo Kim, Cheol Sig Pyo, Seok Kyun Han, Sang Gug Lee
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Publication number: 20080130713Abstract: A method of generating multi-channel local oscillation frequencies in an ultra wide band communication system having multiple channels of identical bandwidth, the method including: generating at least one reference frequency; generating a plurality of auxiliary frequencies by dividing and multiplying the at least one reference frequency; and generating a plurality of first local oscillation frequencies by mixing the reference frequency and at least some of the plurality of auxiliary frequencies with other auxiliary frequencies, respectively, wherein each of the auxiliary frequencies used in the mixing is greater than an interval between the frequency being mixed and an outermost frequency in the ultra wide band.Type: ApplicationFiled: July 3, 2007Publication date: June 5, 2008Applicants: SAMSUNG ELECTRO-MECHANICS CO., LTD., INFORMATION & COMMUNICATIONS UNIVERSITY RESEARCH AND INDUSTRIAL COOPERATION GROUPInventors: Yuna SHIM, Dae Young Yoon, Sang Gug Lee, Jeong Hoon Kim, Eung Ju Kim, Tah Joon Park