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公开(公告)号：US09743162B2
公开(公告)日：2017-08-22
申请号：US14748432
申请日：2015-06-24
Inventor： Won Kyoung Lee , Ho Geon Kim
IPC: H04J1/00 , H04Q11/00 , H04L12/805 , H04J3/16
CPC classification number: H04Q11/0066 , H04J3/1658 , H04L47/36 , H04Q2011/0064
Abstract: Provided is an OTN traffic management method of a traffic management apparatus included in an OTN line card that accepts OTN traffic and transmits the OTN traffic to a multilayer-integrated fabric switch; or accepts traffic, in units of cells, from the multilayer-integrated fabric switch and transmits, to a network, the OTN traffic that the OTN line card generates. The OTN traffic management method includes restoring a received Interlaken packet to an OTN frame; adding an ITMOH that contains information about an ODU payload size to the OTN frame; converting the OTN frame, to which the ITMOH has been added, into to fabric cell by further adding a fabric overhead; and transmitting the fabric cell to the multilayer-integrated fabric switch.
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公开(公告)号：US11515902B2
公开(公告)日：2022-11-29
申请号：US17514849
申请日：2021-10-29
Inventor： Sang Rok Moon , Minkyu Sung , Eon-sang Kim , Won Kyoung Lee , Seung-Hyun Cho
Abstract: Disclosed is a method and apparatus for phase error compensation having tolerance to a cyclic slip. The method includes determining first phase error candidates based on symbol phases of a first block of a received signal, determining an initial estimation error according to the first phase error candidates, determining second phase error candidates based on symbol phases of a second block of the received signal, determining a final estimation error according to the initial estimation error and the second phase error candidates, and compensating for a phase of the received signal according to the final estimation error.
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公开(公告)号：US10009272B2
公开(公告)日：2018-06-26
申请号：US15160445
申请日：2016-05-20
Inventor： Won Kyoung Lee , Jeong Dong Ryoo , Tae Sik Cheung
IPC: H04L12/26 , H04L12/741 , H04L12/723 , H04L12/713 , H04L12/931 , H04L12/24
CPC classification number: H04L45/745 , H04L41/0668 , H04L43/0811 , H04L45/22 , H04L45/50 , H04L45/586 , H04L49/00
Abstract: Provided is a packet transmission apparatus including at least one user network interface (UNI) line card configured to receive traffic including a client signal, a fabric switch configured to perform switching on the traffic based on a unit of line card, a network-to-network interface working (NNI-W) line card configured to generate a multiprotocol label switching-transport profile (MPLS-TP) working tunnel to transmit the traffic transferred through the fabric switch, and a network-to-network interface protection (NNI-P) line card configured to generate a MPLS-TP protection tunnel to transmit the traffic transferred through the fabric switch when a fault occurs on a path of the NNI-W line card.
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4.发明授权公开(公告)号：US11609474B2
公开(公告)日：2023-03-21
申请号：US17496684
申请日：2021-10-07
Inventor： Won Kyoung Lee , Heuk Park , Seung-Hyun Cho
IPC: G02F1/21 , G02F1/225 , H04B10/516 , H04B10/114
Abstract: Disclosed are a terahertz signal generation apparatus and a terahertz signal generation method using the same. The terahertz signal generation apparatus includes first and second resonators configured to respectively output an optical signal of a first resonant frequency and an optical signal of a second resonant frequency from an optical signal input through a gain medium, an optical modulator configured to optically modulate the output optical signal of the second resonant frequency, an optical combiner configured to combine the CW optical signal of the first resonant frequency and the modulated optical signal of the second resonant frequency, and a signal generator configured to generate a terahertz signal using heterodyne beating between the CW optical signal of the first resonant frequency and the modulated optical signal of the second resonant frequency, wherein the first resonant frequency and the second resonant frequency are processed to have a predetermined frequency difference.
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公开(公告)号：US12054770B2
公开(公告)日：2024-08-06
申请号：US17369598
申请日：2021-07-07
Inventor： Hong-Seok Seo , Won Kyoung Lee , Jeong Won Park , Chul Huh
IPC: C12Q1/686 , C12Q1/6818 , G01N21/64 , G01N33/543
CPC classification number: C12Q1/686 , C12Q1/6818 , G01N21/6486 , G01N33/54373
Abstract: An apparatus for a polymerase chain reaction (PCR) diagnosis includes a transmitter that includes a multi-wavelength light source outputting a first light source signal and a second light source signal, which have different wavelengths, and that applies the first light source signal and the second light source signal to a DNA sample, a code generator that generates a first code signal and a second code signal corresponding to the first light source signal and the second light source signal, respectively, a delay controller that generates a first delay signal and a second delay signal corresponding to the first code signal and the second code signal, respectively, and a receiver that compares the first and second fluorescent signals emitted from the DNA sample with the first and second delay signals, and accumulatively integrates the first fluorescent signal or the second fluorescent signal based on the comparison result.
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Patent Agency Ranking
公开(公告)号：US10345243B2
公开(公告)日：2019-07-09
申请号：US15705748
申请日：2017-09-15
Applicant: Electronics and Telecommunications Research Institute , Korea Advanced Institute of Science and Technology
Inventor： Won Kyoung Lee , Ki-Hun Jeong , Moonseong Park
Abstract: Disclosed is an apparatus and method for processing a bio optical signal based on a spread spectrum scheme including a demodulator configured to collect a bio optical signal generated in response to an incident beam modulated based on a spreading code being scattered from a target analyte, and remove a noise from the bio optical signal by demodulating the bio optical signal based on the spreading code, wherein the bio optical signal has a correlation with the modulated incident beam.
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公开(公告)号：US12177047B2
公开(公告)日：2024-12-24
申请号：US18111275
申请日：2023-02-17
Inventor： Won Kyoung Lee , Sang Rok Moon , Joon Ki Lee , Seung-Hyun Cho
Abstract: A method and apparatus for compensating an in- and quadrature-(IQ) imbalance are disclosed. The method and apparatus for compensating an in- and quadrature-(IQ) imbalance provide a technique for compensating a signal distortion caused by imperfect element features and various noises on a transmission link in terahertz wireless communication and improving transmission performance.
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公开(公告)号：US11747281B2
公开(公告)日：2023-09-05
申请号：US17618205
申请日：2020-07-14
Inventor： Won Kyoung Lee , Hong-Seok Seo
IPC: G01N21/65 , G01N33/483
CPC classification number: G01N21/65 , G01N33/483 , G01N2201/06113
Abstract: Disclosed is a spectroscopic apparatus includes a laser irradiation device that receives an orthogonal code including a series of bits each having a first value or a second value, generates a control signal having a pulse that has a width shorter than a width of a bit section in the bit section corresponding to a bit having the first value, generates a pulsed laser beam having a pulse width shorter than the bit section using the pulse as a trigger, and irradiates an incident beam including the generated pulsed laser beam to a sample, and a detector that receives a detection signal generated from the sample and the orthogonal code, generates an orthogonal code signal of the same waveform as that of the incident beam, based on the orthogonal code, and demodulates a Raman signal, based on a correlation between the generated orthogonal code signal and the Raman signal.
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公开(公告)号：US11193828B2
公开(公告)日：2021-12-07
申请号：US17014258
申请日：2020-09-08
Inventor： Won Kyoung Lee , Hong-Seok Seo
Abstract: A spectroscopic apparatus includes a splitter that receives a first detected signal output from a sample to which an incident beam is irradiated, and outputs a reflected signal and a second detected signal by splitting the first detected signal, and a signal processor that receives the reflected signal and the second detected signal, and extracts a Raman signal from the second detected signal in response to the received reflected signal.
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公开(公告)号：US11119045B2
公开(公告)日：2021-09-14
申请号：US16683166
申请日：2019-11-13
Inventor： Won Kyoung Lee , Bong Kyu Kim , Soo Jun Park , Chul Huh
Abstract: An apparatus for analyzing microbiome according to an embodiment of the inventive concept includes a light source unit configured to excite first light, a sample unit on which a sample to which the first light is incident is disposed, and a data analysis unit configured to receive second light emitted from the sample unit and analyze microbiome in the sample from the second light. Here, the sample unit includes a conductive polymer structure that surrounds the sample.
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