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公开(公告)号：US11005526B2
公开(公告)日：2021-05-11
申请号：US16358093
申请日：2019-03-19
Applicant: Maxlinear, Inc.
Inventor： Kenneth Scott Walley , Steve Krapp , Eitan Tsur , Sridhar Ramesh
Abstract: An electronic communication device comprises echo cancellation circuitry and signal modification circuitry. The echo cancellation circuitry may be operable to generate a first signal that approximates interference present in a second signal. The signal modification circuitry may be operable to generate a first cancellation signal in a frequency band that is not used on a communication medium over which the electronic communication device is configured to communicate. The signal modification circuitry may be operable to combine the first cancellation signal with the first signal, wherein the combining of the signals results in a modified first signal that has a lower crest factor and/or peak-to-average power ratio than the first signal. The signal modification circuitry may be operable to combine the modified first signal with the second signal to reduce interference present in the second signal.
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公开(公告)号：US10763902B2
公开(公告)日：2020-09-01
申请号：US15388765
申请日：2016-12-22
Applicant: MaxLinear, Inc.
Inventor： Rahul Bhatia , Kenneth Scott Walley , Masoud Koochakzadeh , Jesson John
IPC: H04B1/04 , H04B17/10 , H04B17/345 , H04B17/18 , H04N21/61
Abstract: Systems and methods are provided for utilizing remote spectrum analysis of transmit bands in communication systems. A transmit band spectrum corresponding to a transmit band used in transmitting signals may be captured. The captured transmit band spectrum may be processed, and based on such processing presence of noise, distortion, interference, etc. in the transmit band spectrum may be detected, wherein the noise, distortion, interference, etc. may be introduced by one or more other systems sharing a medium used in the transmitting of the signals. One or more characteristic associated with each instance of detected noise, distortion, interference, etc. may be determined. Reporting information, related to the detection of noise, distortion, interference, etc. and/or to the determined one or more characteristics associated with each instance of detected noise, distortion, interference, etc., may be determined, and the reported information may be sent to at least one remote system.
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Patent Agency Ranking
公开(公告)号：US20170187400A1
公开(公告)日：2017-06-29
申请号：US15388765
申请日：2016-12-22
Applicant: MaxLinear, Inc.
Inventor： Rahul Bhatia , Kenneth Scott Walley , Masoud Koochakzadeh , Jesson John
Abstract: Systems and methods are provided for utilizing remote spectrum analysis of transmit bands in communication systems. A transmit band spectrum corresponding to a transmit band used in transmitting signals may be captured. The captured transmit band spectrum may be processed, and based on such processing presence of noise, distortion, interference, etc. in the transmit band spectrum may be detected, wherein the noise, distortion, interference, etc. may be introduced by one or more other systems sharing a medium used in the transmitting of the signals. One or more characteristic associated with each instance of detected noise, distortion, interference, etc. may be determined. Reporting information, related to the detection of noise, distortion, interference, etc. and/or to the determined one or more characteristics associated with each instance of detected noise, distortion, interference, etc., may be determined, and the reported information may be sent to at least one remote system.
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公开(公告)号：US10601462B2
公开(公告)日：2020-03-24
申请号：US16356216
申请日：2019-03-18
Applicant: Maxlinear, Inc.
Inventor： Kenneth Scott Walley , Steve Krapp , Eitan Tsur , Sridhar Ramesh
Abstract: A cable modem comprises transceiver circuitry and echo cancellation training circuitry. The transceiver circuitry may be operable to transmit and receive signals on a full-duplex Data Over Cable System Interface Specification (DOCSIS®) network. The echo cancellation training circuitry may be operable to: determine an echo cancellation training group to which the electronic communication device belongs; determine one or more training periods during which the echo cancellation training group is permitted to transmit training signals; and transmit an echo cancellation training signal during the determined training one or more periods and use the transmitted training signal to train echo cancellation circuitry of the cable modem.
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公开(公告)号：US20190296791A1
公开(公告)日：2019-09-26
申请号：US16358093
申请日：2019-03-19
Applicant: Maxlinear, Inc.
Inventor： Kenneth Scott Walley , Steve Krapp , Eitan Tsur , Sridhar Ramesh
Abstract: An electronic communication device comprises echo cancellation circuitry and signal modification circuitry. The echo cancellation circuitry may be operable to generate a first signal that approximates interference present in a second signal. The signal modification circuitry may be operable to generate a first cancellation signal in a frequency band that is not used on a communication medium over which the electronic communication device is configured to communicate. The signal modification circuitry may be operable to combine the first cancellation signal with the first signal, wherein the combining of the signals results in a modified first signal that has a lower crest factor and/or peak-to-average power ratio than the first signal. The signal modification circuitry may be operable to combine the modified first signal with the second signal to reduce interference present in the second signal.
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公开(公告)号：US20190288742A1
公开(公告)日：2019-09-19
申请号：US16356216
申请日：2019-03-18
Applicant: Maxlinear, Inc.
Inventor： Kenneth Scott Walley , Steve Krapp , Eitan Tsur , Sridhar Ramesh
Abstract: A cable modem comprises transceiver circuitry and echo cancellation training circuitry. The transceiver circuitry may be operable to transmit and receive signals on a full-duplex Data Over Cable System Interface Specification (DOCSIS®) network. The echo cancellation training circuitry may be operable to: determine an echo cancellation training group to which the electronic communication device belongs; determine one or more training periods during which the echo cancellation training group is permitted to transmit training signals; and transmit an echo cancellation training signal during the determined training one or more periods and use the transmitted training signal to train echo cancellation circuitry of the cable modem.
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公开(公告)号：US10700736B2
公开(公告)日：2020-06-30
申请号：US15938937
申请日：2018-03-28
Applicant: MaxLinear, Inc.
Inventor： Sridhar Ramesh , Kenneth Scott Walley
Abstract: Systems and methods are provided for full duplex DOCSIS cable modem echo cancellation with training. During reception of downstream signals, echo effects on downstream signals may be determined, with at least some of the echo effects corresponding to concurrently transmitted upstream signals. Echo cancellation corrections may be determined based on the determined echo effects, and the echo cancellation corrections may be applied during processing of the downstream signals. The echo cancellation corrections may include one or both of ACI (adjacent channel interference) cancellation corrections and ALI (adjacent leakage interference) cancellation correction. The echo cancellation may include or be based on preforming echo cancellation training, during active communication and based on one or both of the downstream signals and the upstream signals.
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