Patents by Inventor Hyo Sup Won
Hyo Sup Won 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).
-
Patent number: 11038667Abstract: The present disclosure relates to a phase synchronization device, and more specifically, to a stochastic RF phase synchronization system (SRFPS) for correcting a phase error of a recovered signal on the basis of an RF signal received through a receiver. The phase synchronization device according to an exemplary embodiment of the present disclosure includes: a sampling unit for outputting a sampling value by sampling a recovered signal based on a predetermined threshold voltage value; a phase shift control unit for calculating a cost value for the recovered signal by using a histogram function generated on the basis of the sampling value, and determining an optimal phase offset value on the basis of the cost value; and a phase shift unit for shifting the phase of an oscillation signal according to the optimal phase offset value.Type: GrantFiled: October 30, 2018Date of Patent: June 15, 2021Inventors: Joon Yeong Lee, Hyo Sup Won
-
Publication number: 20200389286Abstract: The present disclosure relates to a phase synchronization device, and more specifically, to a stochastic RF phase synchronization system (SRFPS) for correcting a phase error of a recovered signal on the basis of an RF signal received through a receiver. The phase synchronization device according to an exemplary embodiment of the present disclosure includes: a sampling unit for outputting a sampling value by sampling a recovered signal based on a predetermined threshold voltage value; a phase shift control unit for calculating a cost value for the recovered signal by using a histogram function generated on the basis of the sampling value, and determining an optimal phase offset value on the basis of the cost value; and a phase shift unit for shifting the phase of an oscillation signal according to the optimal phase offset value.Type: ApplicationFiled: October 30, 2018Publication date: December 10, 2020Inventors: Joon Yeong Lee, Hyo Sup Won
-
Patent number: 10777868Abstract: The present invention relates to a waveguide for transmission of electromagnetic wave signals. According to one aspect of the invention, there is provided a waveguide for transmission of electromagnetic wave signals, comprising: a dielectric part comprising two or more dielectrics having different permittivity; and a conductor part surrounding at least a part of the dielectric part.Type: GrantFiled: September 28, 2018Date of Patent: September 15, 2020Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Hyeon Min Bae, Ha Il Song, Joon Yeong Lee, Tae Hoon Yoon, Hyo Sup Won
-
Patent number: 10777865Abstract: The present invention relates to a waveguide for transmission of electromagnetic wave signals and a chip-to-chip interface apparatus comprising the same. According to one aspect of the invention, there is provided a waveguide for transmission of electromagnetic wave signals, comprising: a dielectric part; and a conductor part surrounding at least a part of the dielectric part, wherein a signal of a first frequency band is transmitted through the dielectric part, and a signal of a second frequency band lower than the first frequency band is transmitted through the conductor part.Type: GrantFiled: September 28, 2018Date of Patent: September 15, 2020Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Hyeon Min Bae, Ha Il Song, Joon Yeong Lee, Tae Hoon Yoon, Hyo Sup Won
-
Patent number: 10770774Abstract: The present invention relates to a microstrip-waveguide transition for transmission of electromagnetic wave signals. According to one aspect of the invention, there is provided a microstrip-waveguide transition for transmission of electromagnetic wave signals, comprising: a feeding part for providing an electromagnetic wave signal to be transmitted through the waveguide; and a ground part formed at a predetermined interval from the feeding part, wherein the microstrip and the waveguide are coupled alongside each other along a length direction of the waveguide, and wherein a distance between the feeding part and the ground part in a direction perpendicular to the length direction of the waveguide is greater as it is closer to the waveguide.Type: GrantFiled: September 28, 2018Date of Patent: September 8, 2020Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Hyeon Min Bae, Ha Il Song, Joon Yeong Lee, Tae Hoon Yoon, Hyo Sup Won
-
Publication number: 20190103647Abstract: The present invention relates to a microstrip-waveguide transition for transmission of electromagnetic wave signals. According to one aspect of the invention, there is provided a microstrip-waveguide transition for transmission of electromagnetic wave signals, comprising: a feeding part for providing an electromagnetic wave signal to be transmitted through the waveguide; and a ground part formed at a predetermined interval from the feeding part, wherein the microstrip and the waveguide are coupled alongside each other along a length direction of the waveguide, and wherein a distance between the feeding part and the ground part in a direction perpendicular to the length direction of the waveguide is greater as it is closer to the waveguide.Type: ApplicationFiled: September 28, 2018Publication date: April 4, 2019Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Hyeon Min BAE, Ha Il SONG, Joon Yeong LEE, Tae Hoon YOON, Hyo Sup WON
-
Publication number: 20190067775Abstract: The present invention relates to a waveguide for transmission of electromagnetic wave signals. According to one aspect of the invention, there is provided a waveguide for transmission of electromagnetic wave signals, comprising: a dielectric part comprising two or more dielectrics having different permittivity; and a conductor part surrounding at least a part of the dielectric part.Type: ApplicationFiled: September 28, 2018Publication date: February 28, 2019Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Hyeon Min BAE, Ha Il SONG, Joon Yeong LEE, Tae Hoon YOON, Hyo Sup WON
-
Publication number: 20190067776Abstract: The present invention relates to a waveguide for transmission of electromagnetic wave signals and a chip-to-chip interface apparatus comprising the same. According to one aspect of the invention, there is provided a waveguide for transmission of electromagnetic wave signals, comprising: a dielectric part; and a conductor part surrounding at least a part of the dielectric part, wherein a signal of a first frequency band being a relatively higher frequency band is transmitted through the dielectric part, and a signal of a second frequency band being a relatively lower frequency band is transmitted through the conductor part.Type: ApplicationFiled: September 28, 2018Publication date: February 28, 2019Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Hyeon Min BAE, Ha Il SONG, Joon Yeong LEE, Tae Hoon YOON, Hyo Sup WON
-
Patent number: 10128557Abstract: The present invention relates to a microstrip circuit and a chip-to-chip interface apparatus comprising the same. According to one aspect of the invention, there is provided a microstrip circuit. The microstrip circuit includes a feeding line providing a signal, a probe being connected to one end of the feeding line, and a patch emitting the signal to a waveguide. The patch is disposed in a layer opposite to a layer in which the feeding line and the probe are disposed, with a core substrate being positioned therebetween. At least one of length of the probe, thickness of the core substrate, and permittivity of the core substrate is determined based on bandwidth of a transition between the microstrip circuit and the waveguide.Type: GrantFiled: November 3, 2016Date of Patent: November 13, 2018Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Hyeon Min Bae, Ha II Song, HuXian Jin, Joon Yeong Lee, Hyo Sup Won, Tae Hoon Yoon
-
Publication number: 20170141450Abstract: The present invention relates to a microstrip circuit and a chip-to-chip interface apparatus comprising the same. According to one aspect of the invention, there is provided a microstrip circuit. The microstrip circuit includes a feeding line providing a signal, a probe being connected to one end of the feeding line, and a patch emitting the signal to a waveguide. The patch is disposed in a layer opposite to a layer in which the feeding line and the probe are disposed, with a core substrate being positioned therebetween. At least one of length of the probe, thickness of the core substrate, and permittivity of the core substrate is determined based on bandwidth of a transition between the microstrip circuit and the waveguide.Type: ApplicationFiled: November 3, 2016Publication date: May 18, 2017Applicant: Korea Advanced Institute of Science and TechnologyInventors: Hyeon Min BAE, Ha II SONG, HuXian JIN, Joon Yeong LEE, Hyo Sup WON, Tae Hoon YOON
-
Patent number: 8938043Abstract: Exemplary embodiments of the present invention relate to a clock and data recovery (CDR) apparatus with adaptive optimum CDR bandwidth estimation by using a Kalman gain extractor. The Kalman gain extractor includes an off chip digital processor which receives a phase update information from the CDR outputs an estimated optimum Kalman gain obtained by extracting the standard deviation of step sizes of the accumulation jitter from the power spectral density (PSD) of the phase update information, and a on chip digital loop filter consists of a cyclic accumulator which accumulates the phase detector's output, a gain multiplier and a phase interpolator (or DCO) controller. The off chip digital processor includes a storage register, a fast Fourier transform (FFT) processor and an optimum Kalman gain estimator. The storage register stores the phase update information, from which the FFT processor extracts the PSD of the absolute input jitter.Type: GrantFiled: March 15, 2013Date of Patent: January 20, 2015Assignee: TeraSquare Co., Ltd.Inventors: Hyeon Min Bae, Joon Yeong Lee, Hyo Sup Won, Jong Hyeok Yoon, Jin Ho Park, Tae Ho Kim
-
Patent number: 8774336Abstract: Exemplary embodiments of the present invention relate to a low-power highly-accurate passive multiphase clock generation scheme by using polyphase filters. An exemplary embodiment of the present invention may be low power phase-rotator-based 25 GB/s CDR architecture in case that half-rate reference clock is provided. It may be suitable for multi-lane scheme and incorporate phase interpolator with improved phase accuracy to make Nyquist-sampling clock phase. To improve the phase accuracy, poly phase filter may be used for converting 4-phase to 8-phase and interpolate adjacent 45 degree different phases. The linearity of phase rotator may be improved by proposed harmonic rejection poly phase filter (HRPPF) using the characteristic of notch filter response.Type: GrantFiled: March 15, 2013Date of Patent: July 8, 2014Assignee: TeraSquare Co., Ltd.Inventors: Hyeon Min Bae, Hyo Sup Won, Joon Yeong Lee, Jin Ho Park, Tae Ho Kim
-
Publication number: 20130266103Abstract: Exemplary embodiments of the present invention relate to a low-power highly-accurate passive multiphase clock generation scheme by using polyphase filters. An exemplary embodiment of the present invention may be low power phase-rotator-based 25 GB/s CDR architecture in case that half-rate reference clock is provided. It may be suitable for multi-lane scheme and incorporate phase interpolator with improved phase accuracy to make Nyquist-sampling clock phase. To improve the phase accuracy, poly phase filter may be used for converting 4-phase to 8-phase and interpolate adjacent 45 degree different phases. The linearity of phase rotator may be improved by proposed harmonic rejection poly phase filter (HRPPF) using the characteristic of notch filter response.Type: ApplicationFiled: March 15, 2013Publication date: October 10, 2013Applicants: TeraSquare Co., Ltd., Korea Advanced Institute of Science and TechnologyInventors: Hyeon Min Bae, Hyo Sup Won, Joon Young Lee, Jin Ho Park, Tae Ho Kim
-
Publication number: 20130259178Abstract: Exemplary embodiments of the present invention relate to a clock and data recovery (CDR) apparatus with adaptive optimum CDR bandwidth estimation by using a Kalman gain extractor. The Kalman gain extractor includes an off chip digital processor which receives a phase update information from the CDR outputs an estimated optimum Kalman gain obtained by extracting the standard deviation of step sizes of the accumulation jitter from the power spectral density (PSD) of the phase update information, and a on chip digital loop filter consists of a cyclic accumulator which accumulates the phase detector's output, a gain multiplier and a phase interpolator (or DCO) controller. The off chip digital processor includes a storage register, a fast Fourier transform (FFT) processor and an optimum Kalman gain estimator. The storage register stores the phase update information, from which the FFT processor extracts the PSD of the absolute input jitter.Type: ApplicationFiled: March 15, 2013Publication date: October 3, 2013Applicants: TeraSquare Co., Ltd., Korea Advanced Institute of Science and TechnologyInventors: Hyeon Min Bae, Joon Young Lee, Hyo Sup Won, Jong Hyeok Yoon, Jin Ho Park, Tae Ho Kim