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公开(公告)号：US20240243543A1
公开(公告)日：2024-07-18
申请号：US18097963
申请日：2023-01-17
CPC分类号： H01S3/1305 , H01S3/1303 , H03L7/26
摘要： A method for compensating a reference frequency shift due to an interaction of resonant light provided by a resonant light source with atoms of an atomic beam crossing a resonant microwave cavity between light interaction zones includes toggling a wavelength of the provided resonant light between a main optical pumping transition, OPT1, and an alternate optical pumping transition, OPT2, of the atoms of the atomic beam while a frequency of the microwave probe signal fed into the microwave cavity is modulated with a frequency modulation depth, FMD. The method further includes computing a wavelength modulation compensation error signal, WM-CES depending on the measured signal amplitudes of Ramsey fringes used to control the frequency of the microwave probe signal fed into the microwave cavity.
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公开(公告)号：US20240204874A1
公开(公告)日：2024-06-20
申请号：US18081323
申请日：2022-12-14
发明人： Robert H. Bishop , Scott D. Orangio
IPC分类号： H04B10/27
CPC分类号： H04B10/27
摘要： A process for removing skew across a set of at least two clients that are members of a particular trunk, the skew removed from a data path from a first communications system component to a second communications system component. The process using a deskew marker to initiate storage of a set of idle primitives in a FIFO for client member of the particular trunk. Releasing in lockstep, idle primitives for the set of FIFO for the set of client members of the particular trunk after receipt of the final deskew marker. Continuing to route subsequent data for the set of clients for that particular trunk through the set of FIFO for the set of clients for that particular trunk. The data path from the first communications system component to the second communications system component may include traversing a fiber optic network
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公开(公告)号：US11852512B2
公开(公告)日：2023-12-26
申请号：US17683522
申请日：2022-03-01
发明人： Michael Eiselt
CPC分类号： G01D5/35329 , G01K11/32
摘要： In a method for interrogating at least one optical sensor coupled to an optical path, at least two time-shifted optical signals are fed into the optical path and reflected optical signals of the at least two probe signals created by the at least one optical sensor are detected. Each detected reflected optical signal is assigned to one of the at least one optical sensor and a correct optical frequency is assigned to each detected reflected optical signal. An absolute value or a value range or a change of a value or value range of the parameter to be sensed is determined from the one or more of the following physical conditions: the optical reflection signals, the reflectivity of the at least one optical sensor, and the frequency of each detected optical reflection signal, or from one or more dependencies that link these physical conditions.
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4.发明公开公开(公告)号：US20230254037A1
公开(公告)日：2023-08-10
申请号：US18101768
申请日：2023-01-26
IPC分类号： H04B10/079 , H04B10/077
CPC分类号： H04B10/07953 , H04B10/0775
摘要： The present invention provides a performance monitoring device, an optical signal network with performance monitoring, and a performance monitoring method. The performance monitoring device (100) comprises a coherent receiver (10), an analog-to-digital-converter, ADC (20), a digital signal processing module, DSPM (30), and a noise correction module, NCM (40),
the receiver (10) having a second bandwidth that is smaller than the first bandwidth (BW1) such that the receiver (10) is configured to output an electrical analog signal (72) with the second bandwidth based on the received optical signal (71) having the first bandwidth,
the ADC (20), being configured to generate from the electric analog signal (72) a digital input signal (73) with the second bandwidth;
the DSPM (30) being configured to generate a raw performance monitoring metric, RPMM (74), based on the digital input signal (73);
wherein the NCM (40) is configured to generate a performance monitoring metric, PMM (75), based on the digital input signal (73) by compensating distortion in the RPMM (74) caused by the coherent receiver (10) having a smaller bandwidth than the optical signal (71).-
5.发明申请公开(公告)号：US20230140721A1
公开(公告)日：2023-05-04
申请号：US18048867
申请日：2022-10-24
IPC分类号： H04Q11/00
摘要： A system installed in a cross-border area between a provider network of a provider and a customer network of a customer includes: a smart optical network termination device (NT) at a site of the customer, wherein the smart optical NT is configured to implement a demarcation point between the customer network and the provider network, and wherein the smart optical NT is independent of a data rate passing through it and an optical interface connected to it; and a monitoring device located at a point of presence (PoP) of the provider network. The smart optical NT is further configured to monitor a coupling of optical power by the customer into the provider network and to interact with the monitoring device via at least one traffic analysis point (TAP) for connectivity validation from the PoP to the demarcation point.
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公开(公告)号：US20230018829A1
公开(公告)日：2023-01-19
申请号：US17751596
申请日：2022-05-23
发明人： Joo Yeon Cho , Helmut Griesser
IPC分类号： H04L9/08
摘要： A method and system for performing a secure key relay of an encryption key, Kenc, provided by an initial node, KN0, and used by an encoding unit (ENC) of a first data transceiver for encoding plain data, Pdata, to provide encrypted cipher data, Cdata, transported via a data transport link, DTL, to a decoding unit (DEC) of a second data transceiver which decodes the transported cipher data, Cdata, using the relayed encryption key, Kenc, provided by a terminal node, KNN, as a decoding key to retrieve the plain data, Pdata, wherein the relay of the encryption key, Kenc, from the initial node, KN0, to the terminal node, KNN, is performed by means of intermediate relay nodes, KN1, KN2 . . . KNN−1, and comprises the steps of sharing (S1) QKD-keys, K, between the nodes via secure quantum channels, QCH, of a quantum key distribution network, QKDN; performing (S2) encryption of shared QKD-KEYS, K, at the initial node, KN0, and at each intermediate relay node, KN1, KN2 . . . KNN−1, and blinding them with a blinding value, Si, of the respective node to provide an encrypted cipher key, CKi, by the initial node, KN0, and by each intermediate relay node, KN1, KN2 . . . KNN−1; distributing (S3) or pre-distributing the blinding values, Si, of the initial node, KN0, and of each intermediate relay node, KN1, KN2 . . . KNN−1; transmitting (S4) the encrypted cipher keys, CKi, of the initial node, KN0, and of each of the intermediate relay nodes, KN1, KN2 . . . KNN−1, to the terminal node, KNN; performing (S6) by the terminal node, KNN, logic operations on reconstructed or pre-distributed blinding values, Si, on the basis of the encrypted cipher keys, CKi, received by the terminal node, KNN, from the initial node, KN0, and received from each of the intermediate relay nodes, KN1, KN2 . . . KNN−1, to provide the encryption key, Kenc, used by the decoding unit (DEC) of the second data transceiver as a decoding key to retrieve the plain data, Pdata.
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公开(公告)号：US20220283000A1
公开(公告)日：2022-09-08
申请号：US17683522
申请日：2022-03-01
发明人： Michael Eiselt
摘要： The invention relates to a method for interrogating at least one optical sensor that is provided within or connected to an optical path at a sensor position, the optical path connecting the optical sensor to a near end of the optical path. The at least one optical sensor has a known frequency-dependent course of its reflectivity that is changed by a physical parameter to be sensed, especially the temperature or humidity of the environment surrounding the at least one optical sensor or the pressure being exerted onto the at least one optical sensor. The method includes the steps of: feeding at least two optical probe signals having differing optical center frequencies to the near end of the optical path, where the at least two optical probe signals are time-shifted versus each other in a predetermined manner when being fed to the near end of the optical path, or where a predetermined time shift between the at least two optical probe signals or corresponding optical reflection signals is introduced within the optical path or within an optical receiver using a chromatic dispersion generating component; detecting reflected optical power portions of the at least two probe signals (optical reflection signals) created by the at least one optical sensor depending on its frequency-dependent course of the reflectivity and the optical frequencies of the at least two optical probe signals, assigning each optical reflection signal detected to one of the at least one optical sensor and assigning the correct optical frequency to each optical reflection signal detected using a known round-trip delay of the at least two optical probe signals between the near end and the respective sensor position and/or using the time shift relation between the at least two optical probe signals; and determining an absolute value or a value range or a change of a value or value range of the parameter to be sensed from the presence of one or more of the optical reflection signals or the maximum optical power or the optical energy thereof, from the frequency-dependent course of the reflectivity of the at least one optical sensor and its dependency on the parameter to be sensed, and from the optical frequency of each of the optical reflection signals detected or from one or more dependencies that link these physical conditions.
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公开(公告)号：US11314276B2
公开(公告)日：2022-04-26
申请号：US16595322
申请日：2019-10-07
发明人： Michael Rabinovich , Moshe Tofef , Igal Pinchasov
摘要： There is provided a technique of time delivery in a computing system comprising a system call interface (SCI) located in a kernel space and operatively connected to a time client located in a user space. The technique comprises: using a time agent component located in the user space to measure data indicative of delay in a system time delivery and to derive therefrom a system time delivery error TES2C; using TES2C to enable correction of system time; and sending by the SCI the corrected system time in response to a “Read Clock RT” (RCRT) call received from the time client. The method can further comprise: measuring data indicative of delays in the system time delivery for RCRT calls with different priorities; and in response to a system time request received from the time client, providing the time client with system time corrected per TES2C corresponding to the recognized priority thereof.
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公开(公告)号：US20220014267A1
公开(公告)日：2022-01-13
申请号：US17315408
申请日：2021-05-10
IPC分类号： H04B10/079 , H04J14/02 , H04L12/801 , H04L12/803
摘要： The invention relates to a method for migrating data traffic from an existing optical WDM transmission system to a new optical WDM transmission system, the existing optical WDM transmission system using a first optical transmission band and the new optical WDM transmission system being capable of using a second optical transmission band. The second optical transmission band at least partially includes the first optical transmission band and a further extension band that does not overlap with the first optical transmission band, the method including the steps of. According to the invention, a migration filter device is used in order to connect, during a migration phase, the network nodes of the existing system and the network nodes of the new system to the network paths that have been used by the existing system. During the migration phase, both systems are operated in parallel, with the new system using the extension band only. In this way, during the migration phase, the data traffic handled by the existing system can stepwise be switched to the new system. After all data traffic has been switched to the new system, the existing system can be deinstalled. The migration filter devices can stepwise be deinstalled.
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公开(公告)号：US20210357257A1
公开(公告)日：2021-11-18
申请号：US17386110
申请日：2021-07-27
IPC分类号： G06F9/50
摘要： Dynamically allocating workloads to a fixed number of CPU resources within a compute platform. Determining whether a workload should be in a Dedicated Class of workloads and assigned to a dedicated CPU resource or in a Shared Class of workloads that is handled by a set of at least one shared CPU resource, wherein a shared CPU resource may service more than one workload. The determination may be made based on a comparison of a parameter from two samples of a parameter taken at different times. The determination may be made using metadata associated with the workload. The determination may be made repeatedly so that some workloads may change from being in the Dedicated Class to the Shared Class or from the Shared Class to the Dedicated Class. High availability virtual network functions may be handled economically by deeming the failover workloads to be in the Shared Class.
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