-
公开(公告)号：US20180219620A1
公开(公告)日：2018-08-02
申请号：US15938087
申请日：2018-03-28
Applicant: Cisco Technology, Inc.
Inventor： Christopher R. Fludger , Soeren Gehrke , Johann B. Schiessl
IPC: H04B10/079 , H04B10/50 , H04B10/67
CPC classification number: H04B10/0795 , H04B10/0799 , H04B10/40 , H04B10/50 , H04B10/67
Abstract: One or more operational parameters associated with pluggable optical transceivers are estimated to mitigate impairments to an optical signal caused by imperfections in the optical transceivers. A monitoring algorithm within a receiver signal processor may further use the estimated operational parameters associated with the pluggable optical transceivers to determine whether the transceivers are performing correctly. If the monitoring algorithm determines that either the transmitting or receiving optical transceiver is not functioning correctly, it may generate an alarm signal to notify a system administrator about the damaged device.
-
公开(公告)号：US20180019812A1
公开(公告)日：2018-01-18
申请号：US15210224
申请日：2016-07-14
Applicant: Cisco Technology, Inc.
Inventor： Christopher R. Fludger , Soeren Gehrke , Johann B. Schiessl
IPC: H04B10/079 , H04B10/67 , H04B10/50
CPC classification number: H04B10/0795 , H04B10/0799 , H04B10/40 , H04B10/50 , H04B10/67
Abstract: One or more operational parameters associated with pluggable optical transceivers are estimated to mitigate impairments to an optical signal caused by imperfections in the optical transceivers. A monitoring algorithm within a receiver signal processor may further use the estimated operational parameters associated with the pluggable optical transceivers to determine whether the transceivers are performing correctly. If the monitoring algorithm determines that either the transmitting or receiving optical transceiver is not functioning correctly, it may generate an alarm signal to notify a system administrator about the damaged device.
-
公开(公告)号：US11018777B2
公开(公告)日：2021-05-25
申请号：US16694366
申请日：2019-11-25
Applicant: Cisco Technology, Inc.
Inventor： Christopher R. Fludger
Abstract: A method for digital resampling in a digital communications receiver is described. The method comprises selecting whole samples of a received input signal in the time domain and implementing sub-sample digital interpolation in the frequency domain. This amounts to performing the time shift of the interpolation process in the frequency domain. The method may be performed in conjunction with the operation of a polarisation recovery filter. A digital communications receiver is also provided the receiver being arranged to perform frequency domain sub-sample interpolation on an input data signal.
-
公开(公告)号：US09876566B1
公开(公告)日：2018-01-23
申请号：US15210229
申请日：2016-07-14
Applicant: Cisco Technology, Inc.
Inventor： Christopher R. Fludger , Soeren Gehrke , Johann B. Schiessl
IPC: H04B10/08 , H04B10/00 , H04B10/06 , H04B10/079 , H04B10/077 , H04B10/69 , H04B10/40 , H04B17/23 , H04B10/50
CPC classification number: H04B10/07951 , H04B10/0799 , H04B10/40 , H04B10/616 , H04B10/6161 , H04B10/6972
Abstract: One or more operational parameters associated with pluggable optical transceivers are estimated to mitigate impairments to an optical signal caused by imperfections in the optical transceivers. A monitoring algorithm within a receiver signal processor may further use the estimated operational parameters associated with the pluggable optical transceivers to determine whether the transceivers are performing correctly. If the monitoring algorithm determines that either the transmitting or receiving optical transceiver is not functioning correctly, it may generate an alarm signal to notify a system administrator about the damaged device.
-
公开(公告)号：US11424833B2
公开(公告)日：2022-08-23
申请号：US17202705
申请日：2021-03-16
Applicant: Cisco Technology, Inc.
Inventor： Christopher R. Fludger
Abstract: A method for digital resampling in a digital communications receiver is described. The method comprises selecting whole samples of a received input signal in the time domain and implementing sub-sample digital interpolation in the frequency domain. This amounts to performing the time shift of the interpolation process in the frequency domain. The method may be performed in conjunction with the operation of a polarisation recovery filter. A digital communications receiver is also provided the receiver being arranged to perform frequency domain sub-sample interpolation on an input data signal.
-
Patent Agency Ranking
公开(公告)号：US20200218511A1
公开(公告)日：2020-07-09
申请号：US16732603
申请日：2020-01-02
Applicant: Cisco Technology, Inc.
IPC: G06F7/58 , G01R31/3177 , H03K3/84
Abstract: A random noise generator for generating a plurality of random noise samples per clock cycle, the noise samples having a distribution. The random noise generator comprises at least a first comparator unit and a second comparator unit, the first comparator unit configured to generate a first plurality of samples representing a high-probability part of the distribution and the second comparator unit configured to generate a second plurality of samples representing a low-probability part of the distribution; and a random selection unit connected to at least the first comparator unit and the second comparator unit. The random selection unit is configured to receive the first plurality of samples generated by the first comparator unit and the second plurality of samples generated by the second comparator unit, to output a random selection of samples from the first plurality of samples and the second plurality of samples.
-
公开(公告)号：US11550547B2
公开(公告)日：2023-01-10
申请号：US16732603
申请日：2020-01-02
Applicant: Cisco Technology, Inc.
IPC: G06F7/58 , G01R31/3177 , H03K3/84
Abstract: A random noise generator for generating a plurality of random noise samples per clock cycle, the noise samples having a distribution. The random noise generator comprises at least a first comparator unit and a second comparator unit, the first comparator unit configured to generate a first plurality of samples representing a high-probability part of the distribution and the second comparator unit configured to generate a second plurality of samples representing a low-probability part of the distribution; and a random selection unit connected to at least the first comparator unit and the second comparator unit. The random selection unit is configured to receive the first plurality of samples generated by the first comparator unit and the second plurality of samples generated by the second comparator unit, to output a random selection of samples from the first plurality of samples and the second plurality of samples.
-
公开(公告)号：US20210203420A1
公开(公告)日：2021-07-01
申请号：US17202705
申请日：2021-03-16
Applicant: Cisco Technology, Inc.
Inventor： Christopher R. Fludger
Abstract: A method for digital resampling in a digital communications receiver is described. The method comprises selecting whole samples of a received input signal in the time domain and implementing sub-sample digital interpolation in the frequency domain. This amounts to performing the time shift of the interpolation process in the frequency domain. The method may be performed in conjunction with the operation of a polarisation recovery filter. A digital communications receiver is also provided the receiver being arranged to perform frequency domain sub-sample interpolation on an input data signal.
-
公开(公告)号：US20200169326A1
公开(公告)日：2020-05-28
申请号：US16694366
申请日：2019-11-25
Applicant: Cisco Technology, Inc.
Inventor： Christopher R. Fludger
Abstract: A method for digital resampling in a digital communications receiver is described. The method comprises selecting whole samples of a received input signal in the time domain and implementing sub-sample digital interpolation in the frequency domain. This amounts to performing the time shift of the interpolation process in the frequency domain. The method may be performed in conjunction with the operation of a polarisation recovery filter. A digital communications receiver is also provided the receiver being arranged to perform frequency domain sub-sample interpolation on an input data signal.
-
公开(公告)号：US09967027B2
公开(公告)日：2018-05-08
申请号：US15210224
申请日：2016-07-14
Applicant: Cisco Technology, Inc.
Inventor： Christopher R. Fludger , Soeren Gehrke , Johann B. Schiessl
CPC classification number: H04B10/0795 , H04B10/0799 , H04B10/40 , H04B10/50 , H04B10/67
Abstract: One or more operational parameters associated with pluggable optical transceivers are estimated to mitigate impairments to an optical signal caused by imperfections in the optical transceivers. A monitoring algorithm within a receiver signal processor may further use the estimated operational parameters associated with the pluggable optical transceivers to determine whether the transceivers are performing correctly. If the monitoring algorithm determines that either the transmitting or receiving optical transceiver is not functioning correctly, it may generate an alarm signal to notify a system administrator about the damaged device.
-
-
-
-
-
-
-
-
-
Search Results
11
records
(took 0.018 seconds)
