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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
Inventor： Seung-Hyun CHO , Joon Ki LEE
IPC: H04B10/112 , H04B10/516
CPC classification number: H04B10/112 , H04B10/516
Abstract: 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
Inventor： Sanghwa YOO , Heuk PARK , Joon Ki LEE
CPC classification number: G02B6/1225 , G02B6/12004 , G02B6/12002 , G02B2006/12061 , G02B2006/12142
Abstract: 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
Inventor： Sanghwa YOO , Heuk PARK , Jyung Chan LEE , Joon Ki LEE
Abstract: 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
Inventor： Daeub KIM , Jongtae SONG , Ji Wook YOUN , Joon Ki LEE , Kyeong-Eun HAN
IPC: G06F9/50
Abstract: 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
Inventor： Sun Hyok CHANG , Hun Sik KANG , Joon Ki LEE , Jie Hyun LEE
IPC: H04B10/61 , H04B10/40 , H04B10/524 , H04B10/2507 , H04B10/27 , H04B10/516 , H04B10/564 , H04L1/00
Abstract: 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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Patent Agency Ranking
公开(公告)号：US20170082808A1
公开(公告)日：2017-03-23
申请号：US15010657
申请日：2016-01-29
Inventor： Sae Kyoung KANG , Joon Ki LEE , Joon Young HUH , Jie Hyun LEE
CPC classification number: G02B6/4206 , G02B6/29365 , G02B6/2938 , G02B6/32 , G02B6/4208 , G02B6/421 , G02B6/4215 , G02B6/4244 , G02B6/4249 , G02B6/4265 , G02B6/4292
Abstract: 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
Inventor： Joon Ki LEE , Sae-Kyoung KANG , Joon Young HUH
IPC: H04B10/40
CPC classification number: H04B10/40 , H04B10/504 , H04J14/02
Abstract: 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.
Abstract translation: 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：US20240380492A1
公开(公告)日：2024-11-14
申请号：US18660145
申请日：2024-05-09
Inventor： Sanghwa YOO , Heuk PARK , Joon Ki LEE
IPC: H04B10/50 , G02F1/21 , G02F1/225 , H04B10/548
Abstract: A silicon photonics transmitter and a method therefor are disclosed. The silicon photonics optical transmitter includes a Mach-Zehnder modulator, a plurality of optical couplers, a plurality of photodetectors, a monitor configured to measure an input optical power based on a sum of photocurrents or photovoltages corresponding to the plurality of photodetectors, and a modulator controller configured to control a voltage supplied to the Mach-Zehnder modulator based on a difference between the photocurrents or the photovoltages corresponding to the plurality of photodetectors.
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9.发明申请公开(公告)号：US20240378165A1
公开(公告)日：2024-11-14
申请号：US18238275
申请日：2023-08-25
Inventor： Daeub KIM , Jongtae SONG , Bup Joong KIM , Chanho PARK , Ji Wook YOUN , Joon Ki LEE , Kyeong-Eun HAN
IPC: G06F13/42
Abstract: A method of operating a link enhancement layer includes generating an expandable flexible flit related to a request or a response of a compute express link (CXL) transaction layer, and transmitting the expandable flexible flit to another link enhancement layer connected to the link enhancement layer. The expandable flexible flit is terminated in the other link enhancement layer.
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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
Inventor： Seung-Woo LEE , Sang Rok MOON , Joon Ki LEE
IPC: H04L25/03 , H04L25/497
CPC classification number: H04L25/03343 , H04L25/497 , H04L25/03025 , H04L2025/0349
Abstract: 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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