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公开(公告)号：EP4333326A1
公开(公告)日：2024-03-06
申请号：EP21939264.4
申请日：2021-04-28
发明人： TANAKA Mamiko , KONISHI Yoshiaki , ISHII Kenji
IPC分类号： H04B10/07
摘要： A regenerative relay transponder (110) includes: an optical receiving unit (111) that receives an optical signal from a transmitting device as a reception optical signal and converts the reception optical signal into an electrical signal; an electrical-signal processing unit (112) that executes predetermined processing on the electrical signal; an optical transmitting unit (113) that generates a transmission optical signal by converting the electrical signal subjected to the predetermined processing into an optical signal and transmits the transmission optical signal; and a monitoring unit (114) that monitors the predetermined processing by the electrical-signal processing unit (112), wherein the monitoring unit (114) accumulates in a storage unit (115) monitoring data, which indicates the result of the monitoring, over a predetermined period and causes a communication unit (116) to transmit the monitoring data accumulated over the predetermined period as transmission data to the transmitting device.
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公开(公告)号：EP4318988A1
公开(公告)日：2024-02-07
申请号：EP22775657.4
申请日：2022-03-23
发明人： KOTAKE Hideaki , ABE Yuma , TOYOSHIMA Morio , FUSE Tetsuharu
摘要： [Problem]
A control is performed corresponding to a wide variety of requirements of communication services, and information is transmitted via an appropriate communication network.
[Solution]
For performing a link control to optical space communication devices 2, which are installed in a non-terrestrial node group and an optical ground station, and perform an optical space communication using one or a plurality of links, based on link path information and a link parameter for transmitting and receiving communication service data based on service requests and link monitoring information of the plurality of links received from the non-terrestrial node group, a link monitoring unit 11 that measures the link monitoring information, a position calculation unit 13 that calculates position information of the non-terrestrial node group, a link parameter calculation unit 10 that calculates the link path information and the link parameter based on the position information, the service requests, and the link monitoring information, a link control unit 12 that performs a link control to the optical space communication devices 2 based on the link path information and the link parameter, and a link information communication unit 14 that communicates the service request, the link monitoring information, the link path information, and the link parameter with the non-terrestrial node group are provided.-
公开(公告)号：EP3902159B1
公开(公告)日：2023-10-18
申请号：EP20755791.9
申请日：2020-01-31
发明人： SUGA Mizuki , ITO Kota , SHIRATO Yushi , KITA Naoki
IPC分类号： H04B10/2575 , H04B10/07 , H04W16/26 , H04W92/12 , H04B10/50 , H04J3/06 , H04B10/272
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公开(公告)号：EP4228172A1
公开(公告)日：2023-08-16
申请号：EP22156379.4
申请日：2022-02-11
摘要： Method for detecting an electromagnetic use-signal (2401) comprising: providing an use-signal; Providing an reference signal (2201) comprising M discrete tones with M ≥ 2; splitting the use-signal into N partial use-signals (2511) with N ≥ 2; splitting the reference signal into N partial reference signals (2521); mixing each partial use-signal (2511-n) with the corresponding partial reference signal (2521-n) to generate ∑ n = 1 N K n partial mixing signals (2531), wherein the n th mixing element (2530-n) generates K n partial mixing signals (2531-n); digitizing the partial mixing signals (2531) that ∑ n = 1 N K n digitized partial mixing signals (2541) are generated; reconstructing the use-signal (2551) using a transformation that relates partial mixing signals to the use-signal and that comprises at least one model parameter related to a measurement property, characterized in that: at least one partial reference signal comprises at least two spectral tones, and the ∑ n = 1 N K n of the partial mixing signals comprises redundant information to determine the parameter.
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公开(公告)号：EP3943877B1
公开(公告)日：2023-08-09
申请号：EP21172506.4
申请日：2021-05-06
发明人： FERTIG, Chad , CAMPAGNA, David , NELSON, Karl D.
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公开(公告)号：EP3817246B1
公开(公告)日：2023-08-09
申请号：EP19846912.4
申请日：2019-06-18
发明人： INUI, Tetsuro , NISHIZAWA, Hideki , OKAMOTO, Seiji , HIRANO, Akira , KOBAYASHI, Shokei , INUZUKA, Fumikazu , KUWABARA, Seiki , TANAKA, Takafumi , KITAMURA, Kei , ODA, Takuya
IPC分类号： H04B10/07 , H04B10/516 , H04B10/60
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公开(公告)号：EP3943877A1
公开(公告)日：2022-01-26
申请号：EP21172506.4
申请日：2021-05-06
发明人： FERTIG, Chad , CAMPAGNA, David , NELSON, Karl D.
摘要： Systems and methods for dynamic optical interferometer locking using entangled photons are provided. In certain embodiments, a system includes an optical source for generating a pair of photons. Also, the system includes first and second emitter/receivers that emit first and second photons towards first and second remote reflectors and receive reflected first and second photons along first and second optical paths. Additionally, the system includes a mode combiner for combining the reflected first photon and second photon into a first and second output port. Moreover, the system includes a coarse adjuster that performs coarse adjustments and a fine adjuster that performs fine adjustments to the first and second optical paths. Further, the system includes a plurality of photodetectors that detect photons from the first and second output ports. Additionally, the system includes a processor that controls the coarse and fine adjustments based on received signals from the photodetectors.
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公开(公告)号：EP3940973A1
公开(公告)日：2022-01-19
申请号：EP21179511.7
申请日：2021-06-15
摘要： Eine Empfangsvorrichtung und ein Verfahren zum Ermitteln von Übertragungseigenschaften eines optischen Wellenleiters werden offenbart, wobei die Empfangsvorrichtung (100) aufweist: eine Wellenleiter-Schnittstelle (102) zum Empfangen eines vermischten Lichtstrahls (104) mit einer Vielzahl von Moden von einem optischen Multimode-Wellenleiter und zum Empfangen eines vermischten verschobenen Lichtstrahls (106) von dem optischen Multimode-Wellenleiter, wobei der vermischte Lichtstrahl (104) für jede Mode der Vielzahl von Moden eine zugeordnete Phase aufweist und wobei der vermischte verschobene Lichtstrahl (106) für jede Mode der Vielzahl von Moden eine zugeordnete verschobene Phase aufweist; und ein oder mehrere Prozessoren (108) zum Ermitteln von Modeninformationen (114) für den vermischten Lichtstrahl (104) und von verschobenen Modeninformationen (116) für den vermischten verschobenen Lichtstrahl (106) unter Verwendung eines trainierten neuronalen Netzwerkes (110) und zum Ermitteln, für jede Mode der Vielzahl von Moden, der jeweils zugeordneten Phase (118) unter Verwendung der zugeordneten Phaseninformationen des Lichtstrahls und der zugeordneten verschobenen Phaseninformationen des verschobenen Lichtstrahls.
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公开(公告)号：EP3907908A1
公开(公告)日：2021-11-10
申请号：EP20756641.5
申请日：2020-01-31
发明人： SUGA Mizuki , ITO Kota , SHIRATO Yushi , KITA Naoki
IPC分类号： H04B10/2575 , H04B10/07 , H04W16/26 , H04W92/12
摘要： A derivation method includes: a transmission step of transmitting, to a wireless terminal, a first radio-wave signal according to an optical signal with a first wavelength and a second radio-wave signal according to an optical signal with a second wavelength; a communication start time information acquisition step of acquiring information on a first communication start time and information on a second communication start time; a reception time information acquisition step of acquiring information on a first reception time and information on a second reception time; a transmission time period derivation step of deriving a first round trip time and deriving a second round trip time; and an optical fiber length derivation step of deriving an optical fiber length, based on the first round trip time, the second round trip time, a group velocity or a group delay time of the optical signal with the first wavelength, and a group velocity or a group delay time of the optical signal with the second wavelength.
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