专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明公开

EP4325741A1 OPTICAL FIBER MEASUREMENT SYSTEM 审中-公开
公开(公告)号：EP4325741A1
公开(公告)日：2024-02-21
申请号：EP22806248.5
申请日：2022-02-23
申请人： Huawei Technologies Co., Ltd.
发明人： GUO, Qiang , ZHOU, Rui , YANG, Zhiqun
IPC分类号： H04B10/071 , H04J14/02
摘要： An optical fiber measurement system is provided. The system may be configured to measure one or a plurality of optical fibers in the field of optical communication. The optical fiber measurement system includes an optical time-domain reflectometer, a wavelength division multiplexer, and a signal generator. The signal generator sends a signal light ray to the wavelength division multiplexer. The optical time-domain reflectometer sends two measurement light rays whose wavelengths are respectively longer than and shorter than a wavelength of the signal light ray to the wavelength division multiplexer. The wavelength division multiplexer combines the two measurement light rays and the signal light ray, sends a combined light ray to an optical fiber, and sends a light ray returned by the optical fiber to the optical time-domain reflectometer, so that the optical time-domain reflectometer determines performance of the optical fiber based on the returned light ray. Through unidirectional transmission of the two measurement light rays whose wavelengths are longer than and shorter than the wavelength of the signal light ray, power of the short-wavelength measurement light ray is transferred to the signal light ray, and power of the signal light ray is transferred to the long-wavelength measurement light ray. This effectively offsets the power transferred between each of the two measurement light rays and the signal light ray during a measurement process and improves accuracy of optical fiber measurement without affecting normal service transmission of the signal light ray.

2. 发明授权

EP3926320B1 AERIAL OPTICAL FIBER CABLE INSPECTION METHOD, AERIAL OPTICAL FIBER CABLE INSPECTION DEVICE, AND PROGRAM 审中-实审
公开(公告)号：EP3926320B1
公开(公告)日：2024-02-21
申请号：EP20755787.7
申请日：2020-01-29
发明人： OKAMOTO, Tatsuya , IIDA, Daisuke , OSHIDA, Hiroyuki
IPC分类号： G01M11/00 , H04B10/071 , G01H9/00 , G01D5/353 , G01B11/16 , G01L1/24

3. 发明公开

EP4275029A1 METHOD AND SYSTEM FOR INSPECTING FIBERED OPTICAL COMMUNICATION PATHS 审中-公开
公开(公告)号：EP4275029A1
公开(公告)日：2023-11-15
申请号：EP22748881.4
申请日：2022-01-20
申请人： Huawei Technologies Co., Ltd.
发明人： JIANG, Zhiping
IPC分类号： G01M11/00 , H04B10/071

4. 发明公开

EP4224747A1 COMMUNICATION SYSTEM AND METHOD FOR CONTROLLING COMMUNICATION SYSTEM 审中-实审
公开(公告)号：EP4224747A1
公开(公告)日：2023-08-09
申请号：EP21875469.5
申请日：2021-09-27
申请人： NEC Corporation
发明人： YANO Yutaka , INADA Yoshihisa , NAKANO Takehiro , AIDA Ryuji
IPC分类号： H04J14/08 , H04B10/071 , H04B10/29
摘要： In order to avoid the phenomenon of communication being impeded by a plurality of slave devices sharing one communication line and signals transmitted by the plurality of slave devices overlapping during communication from the plurality of slave devices to a master device, a communication system according to the present invention has a first master device and a plurality of slave devices connected to the first master device via a first transmission path and a second transmission path, wherein: the first master device transmits a first pulsed light to the first transmission path and receives a return light of the first pulsed light from the second transmission path; each of the slave devices is provided on a first return path which connects the first transmission path and the second transmission path, modulates the first pulsed light, and outputs the modulated first pulsed light as the return light of the first pulsed light; and the width of the first pulsed light is narrower than double the shortest distance from among the transmission distance between the slave device outputting the return light and the transmission distance between the first master device and the slave device outputting the return light.

5. 发明公开

EP4211825A1 DETERMINISTIC DYNAMIC NETWORK TRAFFIC SHAPING 审中-实审
公开(公告)号：EP4211825A1
公开(公告)日：2023-07-19
申请号：EP21887745.4
申请日：2021-11-01
申请人： SK3W Technologies Inc.
发明人： BROWN, Jamie, Aaron , MCWHIRTER, Stephen, Russell , KAPELYAN, Elya, Joseph , MOHAN, Craig, John
IPC分类号： H04B10/07 , H04Q11/00 , H04J14/02 , H04B10/071

6. 发明公开

EP4167502A1 FAULT DETECTION METHOD FOR OPTICAL SWITCHING APPARATUS, AND NETWORK DEVICE AND SYSTEM 审中-公开
公开(公告)号：EP4167502A1
公开(公告)日：2023-04-19
申请号：EP21843391.0
申请日：2021-07-01
申请人： Huawei Technologies Co., Ltd.
发明人： LONG, Yun , CHANG, Zhiwen , AI, Fan
IPC分类号： H04B10/071 , H04B10/079 , H04Q11/00
摘要： Embodiments of the present invention disclose a fault detection method for an optical switching apparatus, a network device, and a system, to improve accuracy and efficiency of detecting whether the optical switching apparatus is faulty. The method includes: sending a probe optical signal to a target path, where the probe optical signal is to be transmitted along the target path, and the target path includes at least one optical switching apparatus; receiving a plurality of reflected optical signals from the target path, where the plurality of reflected optical signals are formed after the probe optical signal is reflected by the target path; determining a target reflected optical signal in the plurality of reflected optical signals, where the target reflected optical signal is a reflected optical signal reflected by the optical switching apparatus; and determining, based on the target reflected optical signal, whether the optical switching apparatus is faulty.

7. 发明公开

EP4160178A1 FIBER ELEMENT OFFSET LENGTH-BASED OPTICAL REFLECTOR PEAK ANALYSIS 审中-公开
公开(公告)号：EP4160178A1
公开(公告)日：2023-04-05
申请号：EP22195709.5
申请日：2022-09-14
申请人： Viavi Solutions Inc.
发明人： FARAJ, Patrick , CHAPON, Philippe , RONAN, Thomas , SETIAWAN, Jonathan
IPC分类号： G01M11/00 , H04B10/071
摘要： According to examples, a fiber element offset length-based optical reflector peak analysis apparatus may include an optical element optically connected to a laser source that emits a laser beam. The optical element may include a pre-set offset length between a plurality of adjacent branches. The fiber element offset length-based optical reflector peak analysis apparatus may further include an optical time-domain reflectometer (OTDR) to generate, based on optical reflection signals received from corresponding optical reflectors attached to devices under test (DUTs) that are attached to the plurality of adjacent branches, an OTDR trace that qualifies each of the DUTs.

8. 发明授权

EP3856263B1 STERILITY BREACH DETECTION SYSTEM AND CONTROLLER SYSTEM FOR A STERILIZATION CONTAINER 有权
公开(公告)号：EP3856263B1
公开(公告)日：2023-04-05
申请号：EP18792484.0
申请日：2018-09-28
发明人： COTE, Anne E. , WU, Kun-Chi , WHITE, Tracy J. , MEADOWS, Vernon , MADSEN, Edward B. , WANG, Ruoya
IPC分类号： A61L2/24 , G01R31/11 , H04B10/071

9. 发明授权

EP3698184B1 DYNAMIC MONITORING AND CALIBRATION OF NODES IN AN OPTICAL NETWORKING DEVICE 有权
公开(公告)号：EP3698184B1
公开(公告)日：2023-04-05
申请号：EP19747658.3
申请日：2019-01-25
发明人： MANSOURI RAD, Mohammad Mehdi , MEHRVAR, Hamid , JIANG, Zhiping , BERNIER, Eric
IPC分类号： G02B6/26 , H04B10/071 , H04B10/079 , H04J14/02

10. 发明公开

EP4106227A1 EXTENDING DYNAMIC ACOUSTIC SENSING RANGE AND LOCALIZATION IN UNDERSEA CABLES USING LOOPBACKS 审中-实审
公开(公告)号：EP4106227A1
公开(公告)日：2022-12-21
申请号：EP22177691.7
申请日：2022-06-07
申请人： SubCom, LLC
发明人： Pilipetskii, Alexei N. , Bolshtyansky, Maxim A. , Foursa, Dmitri G. , Mohs, Georg Heinrich , Cai, Jin-Xing
IPC分类号： H04B10/071 , G01H9/00
摘要： Apparatus, systems, and techniques for extending distributed acoustic sensing (DAS) range in undersea optical cables over multiple spans, as well as providing span-specific DAS information, are provided.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式