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1.发明公开公开(公告)号：US20240178915A1
公开(公告)日：2024-05-30
申请号：US18491215
申请日：2023-10-20
发明人： Seung-Hyun CHO , Joon Ki LEE
IPC分类号： H04B10/112 , H04B10/516
CPC分类号： H04B10/112 , H04B10/516
摘要： A communication device combining a communication function and a positioning function and an operation method thereof are provided. The communication device includes a photonics-based sub-terahertz (sub-THz) transmission unit configured to transmit a terahertz (THz) signal generated by beating two optical signals having different wavelengths and a positioning unit configured to determine a position of a target using the THz signal transmitted by the photonics-based sub-THz transmission unit and received by the positioning unit by being reflected by the target, wherein the photonics-based sub-THz transmission unit is configured to adjust a transmission direction of the THz signal based on the position of the target determined by the positioning unit.
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公开(公告)号：US20230358955A1
公开(公告)日：2023-11-09
申请号：US18142752
申请日：2023-05-03
发明人： Sanghwa YOO , Heuk PARK , Joon Ki LEE
CPC分类号： G02B6/1225 , G02B6/12004 , G02B6/12002 , G02B2006/12061 , G02B2006/12142
摘要： According one embodiment of the present disclosure, there is provided a silicon photonics-based optical modulation device having two metal layers. The optical modulation device includes a phase shifter, a ground unit, and a pad unit. The phase shifter includes a first signal electrode, a second signal electrode, and at least two ground electrodes formed in a first metal layer. The phase shifter includes two silicon optical waveguides. The ground unit is formed in a second metal layer different from the first metal layer. The pad unit is formed in the second metal layer, provided with a first local area electrically connected to the ground unit, and electrically connected to the first signal electrode and the second signal electrode via a second local area thereof electrically isolated from the ground unit.
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公开(公告)号：US20220091332A1
公开(公告)日：2022-03-24
申请号：US17371520
申请日：2021-07-09
发明人： Sanghwa YOO , Heuk PARK , Jyung Chan LEE , Joon Ki LEE
摘要： Disclosed is a silicon photonics-based electronic-photonic integrated circuit (EPIC). The silicon photonics-based EPIC includes a silicon photonic integrated circuit (PIC) chip in which an optical device is mounted on a silicon-on-insulator (SOI) wafer including a trench region, an electronic integrated circuit (EIC) chip mounted in the trench region of the PIC chip, and an electrical interface configured to connect an electrode pad of the PIC chip and an electrode pad of the EIC chip.
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公开(公告)号：US20210334143A1
公开(公告)日：2021-10-28
申请号：US17221086
申请日：2021-04-02
发明人： Daeub KIM , Jongtae SONG , Ji Wook YOUN , Joon Ki LEE , Kyeong-Eun HAN
IPC分类号： G06F9/50
摘要： A system for cooperation of disaggregated computing resources interconnected through an optical circuit, and a method for cooperation of disaggregated resources are disclosed. Functional block devices such as a processor block, an accelerator block, and a memory fabric block exist at a remote location, and these three types of remote functional block devices are interconnected and interoperated in a specific program to perform a cooperative computation and processing process. Accordingly, the system shares data and information of a memory existing in each block through optical signal interconnection that provides low-latency, fast processing, and wide bandwidth, and maintains cooperation and memory coherency.
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公开(公告)号：US20190165867A1
公开(公告)日：2019-05-30
申请号：US16014166
申请日：2018-06-21
发明人： Sun Hyok CHANG , Hun Sik KANG , Joon Ki LEE , Jie Hyun LEE
IPC分类号： H04B10/61 , H04B10/40 , H04B10/524 , H04B10/2507 , H04B10/27 , H04B10/516 , H04B10/564 , H04L1/00
摘要： An optical receiver and a method of controlling the optical receiver. The method may include setting, by a controller, a dispersion value of a dispersion compensator to compensate for a dispersion of an optical signal received through an optical fiber, compensating, by the dispersion compensator, for the dispersion of the optical signal based on the set dispersion value, performing, by the controller, an error correction with respect to the optical signal of which the dispersion is compensated and verifying a number of bit errors, and resetting, by the controller, the dispersion value of the dispersion compensator based on the verified number of bit errors.
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公开(公告)号：US20170082808A1
公开(公告)日：2017-03-23
申请号：US15010657
申请日：2016-01-29
发明人： Sae Kyoung KANG , Joon Ki LEE , Joon Young HUH , Jie Hyun LEE
CPC分类号： G02B6/4206 , G02B6/29365 , G02B6/2938 , G02B6/32 , G02B6/4208 , G02B6/421 , G02B6/4215 , G02B6/4244 , G02B6/4249 , G02B6/4265 , G02B6/4292
摘要： A receptacle-collimator assembly and a multi-wavelength optical receiver module. The receptacle-collimator assembly includes a receptacle configured to receive a wavelength-multiplexed optical signal; and a collimator integrated with the receptacle and configured to generate a collimated beam signal from a multi-wavelength optical signal received from the receptacle and output the beam signal.
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公开(公告)号：US20150078758A1
公开(公告)日：2015-03-19
申请号：US14254552
申请日：2014-04-16
发明人： Joon Ki LEE , Sae-Kyoung KANG , Joon Young HUH
IPC分类号： H04B10/40
CPC分类号： H04B10/40 , H04B10/504 , H04J14/02
摘要： A large capacity optical transceiver module includes: an optical transmitter configured to convert electric signals input from an external source into optical signals to transmit the converted signals, in which the electric signals are directly modulated into optical signals in a plurality of sub groups to be multiplexed; and an optical receiver configured to receive optical signals from the external source, and to convert the received optical signals into electric signals to output the converted signals, in which the optical signals are demultiplexed in a plurality of sub groups to be converted into electric signals.
摘要翻译： 一种大容量光收发模块，包括：光发射机，被配置为将从外部源输入的电信号转换为光信号，以将电信号直接调制成多个子组中的光信号， ; 以及光接收器，被配置为从外部源接收光信号，并将所接收的光信号转换为电信号以输出转换的信号，其中光信号在多个子组中解复用以转换为电信号。
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公开(公告)号：US20230308318A1
公开(公告)日：2023-09-28
申请号：US18126137
申请日：2023-03-24
发明人： Seung-Woo LEE , Sang Rok MOON , Joon Ki LEE
IPC分类号： H04L25/03 , H04L25/497
CPC分类号： H04L25/03343 , H04L25/497 , H04L25/03025 , H04L2025/0349
摘要： A method of equalization for high-speed processing and an equalizer thereof are proposed. The method of equalization includes determining a filter coefficient applied to a transmitter equalizer provided with a 2-tap precoder according to an approximate channel response characteristic, generating a pre-equalization signal by removing precursor ISI of a transmission feedback signal by the precoder to which the filter coefficient is applied, so as to output the pre-equalization signal as a transmitting signal, and receiving a transmission signal and generating an equalization signal by removing postcursor ISI of the received transmission signal by a receiver equalizer provided with a feedback filter having auxiliary coefficients for compensating for a difference between an overall channel response of the transmission signal and a channel response based on the precoder.
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9.发明申请公开(公告)号：US20190229828A1
公开(公告)日：2019-07-25
申请号：US16124766
申请日：2018-09-07
发明人： Joon Young HUH , Sae-Kyoung KANG , Joon Ki LEE
摘要： An optical multiplexer including an optical waveguide block including a plurality of waveguides for adjusting an optical path of the plurality of optical signals. Optical signals generated in light sources having different wavelengths are input to ports of one side that is an input end of the optical waveguide block, propagated through waveguides connected to the ports, and output to ports of another side that is an output end of the optical wavelength block. Intervals between the waveguides decrease in a direction from the input end to the output end. Intervals between the ports of the input end are smaller than intervals between the ports of the output end. The optical waveguide block has a structure in which at least one layer having at least one waveguide is laminated.
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公开(公告)号：US20190182173A1
公开(公告)日：2019-06-13
申请号：US16122200
申请日：2018-09-05
发明人： Kyeong Eun HAN , Dae Ub KIM , Chan Sung PARK , Jong Tae SONG , Kwang Joon KIM , Joon Ki LEE
IPC分类号： H04L12/863 , H04L12/841 , H04L12/935
摘要： A parallel scheduling apparatus includes an information managing unit generating a first request information for scheduling, a first scheduling unit performing first scheduling and then generating first matching information on the basis of the first request information, and a second scheduling unit performing second scheduling on the basis of the first request information and the first matching information. The parallel scheduling has an advantage of improving the scheduling performance and lowering the implementation complexity, ensuring low delay and transmission fairness among VOQs at low input traffic, being applied to all scheduling algorithms that perform existing multi-iterations, and providing efficient scheduling in a packet switch having a long RTT time or having a very short time slot or cell size, such as an optical switch.
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