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公开(公告)号：US11777774B2
公开(公告)日：2023-10-03
申请号：US17717571
申请日：2022-04-11
Applicant: Cable Television Laboratories, Inc.
Inventor： Douglas D. Jones , Luis Alberto Campos , Thomas Holtzman Williams
IPC: H04L27/26 , H04Q11/00 , H04B10/27 , H04L5/00 , H04B10/548
CPC classification number: H04L27/2607 , H04B10/27 , H04B10/548 , H04L5/0044 , H04L5/0048 , H04L27/2697 , H04Q11/0067 , H04Q2011/0088
Abstract: A method for transmitting a digital frame by an optical network unit in a digital communications network includes steps of arranging received data into a series of symbols, installing a primary cyclic prefix immediately preceding the series of symbols in time, and inserting individual ones of a plurality of secondary cyclic prefixes between each adjacent pair of symbols in the series of symbols. A length of each secondary cyclic prefix corresponds to a first duration shorter than an amount of time needed to turn on a laser of the optical network unit. The method further includes a step of providing to the optical network unit the digital frame. The digital frame includes the primary cyclic prefix, the plurality of secondary cyclic prefixes, and the series of symbols. The method further includes a step of modulating the provided digital frame by a laser of the optical network unit.
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公开(公告)号：US11057006B2
公开(公告)日：2021-07-06
申请号：US16876321
申请日：2020-05-18
Applicant: CABLE TELEVISION LABORATORIES, INC
Inventor： Thomas Holtzman Williams , Belal Hamzeh
Abstract: An amplification subsystem for a communication system includes a downstream amplifier configured to transmit a downstream signal within a first frequency range, an upstream amplifier configured to transmit an upstream signal within a second frequency range, and a bidirectional amplifier configured to selectively transmit a mid-band signal in either of the upstream and downstream direction.
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公开(公告)号：US10921363B2
公开(公告)日：2021-02-16
申请号：US16155866
申请日：2018-10-09
Applicant: CABLE TELEVISION LABORATORIES, INC
Inventor： Thomas Holtzman Williams
Abstract: A system for detecting a failure along a transmission line of a cable plant is provided. The system includes a mobile vehicle configured to travel along a pathway substantially proximate to the cable plant along a span of the transmission line, and a transmitter disposed with the mobile vehicle. The transmitter is configured to emit (i) a test signal capable of ingressing the transmission line at a location of the failure, and (ii) an information signal containing location and velocity data of the mobile vehicle. The test signal is configured to provide phase shift and Doppler frequency information to a receiver operably connected to the transmission line at a location upstream from the location of the failure.
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公开(公告)号：US10778266B2
公开(公告)日：2020-09-15
申请号：US16154935
申请日：2018-10-09
Applicant: Cable Television Laboratories, Inc.
Inventor： Joseph Padden , Thomas Holtzman Williams , Jonathan Ray Dennis , Daryl William Malas , Dan Schrimpsher , Douglas D. Jones
IPC: H04B1/10 , H04B3/32 , H04B10/2507 , H04L12/26
Abstract: Mitigating noise in a network is contemplated, such as but not necessarily limited to mitigating noise through a detection process whereby noise deviations resulting from selectively controlling smart taps, switches or other devices to block signaling in the network may be used to locate sources of noise.
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公开(公告)号：US20200280289A1
公开(公告)日：2020-09-03
申请号：US16876321
申请日：2020-05-18
Applicant: CABLE TELEVISION LABORATORIES, INC
Inventor： Thomas Holtzman Williams , Belal Hamzeh
Abstract: An amplification subsystem for a communication system includes a downstream amplifier configured to transmit a downstream signal within a first frequency range, an upstream amplifier configured to transmit an upstream signal within a second frequency range, and a bidirectional amplifier configured to selectively transmit a mid-band signal in either of the upstream and downstream direction.
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Patent Agency Ranking
公开(公告)号：US20200059206A1
公开(公告)日：2020-02-20
申请号：US16663100
申请日：2019-10-24
Applicant: CABLE TELEVISION LABORATORIES, INC
Inventor： Thomas Holtzman Williams , Belal Hamzeh
Abstract: An amplification subsystem for a communication system includes a downstream amplifier configured to transmit a downstream signal within a first frequency range, an upstream amplifier configured to transmit an upstream signal within a second frequency range, and a bidirectional amplifier configured to selectively transmit a mid-band signal in either of the upstream and downstream direction.
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公开(公告)号：US10554292B2
公开(公告)日：2020-02-04
申请号：US16155784
申请日：2018-10-09
Applicant: Cable Television Laboratories, Inc.
Inventor： Thomas Holtzman Williams , David Daniel Smith
Abstract: Mitigation of satellite interference is contemplated. The mitigation may include processing satellite transmissions to remove interferences based on an amount of signal overlap, such as to facilitate mitigating interferences resulting from satellite spacing and/or ground antenna dish size.
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公开(公告)号：US20190281628A1
公开(公告)日：2019-09-12
申请号：US16423444
申请日：2019-05-28
Applicant: Cable Television Laboratories, Inc.
Inventor： Thomas Holtzman Williams , Matthew D. Schmitt
Abstract: Scheduling of transmission opportunities to prevent collisions is contemplated. The transmission opportunities may be scheduled for terminal units where transmissions of one terminal unit may collide or otherwise interfere with transmissions of another terminal unit. The transmission opportunities may be scheduled according to a time-frequency grid to prevent collisions in a time domain and/or a frequency domain.
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公开(公告)号：US20190107572A1
公开(公告)日：2019-04-11
申请号：US16155866
申请日：2018-10-09
Applicant: CABLE TELEVISION LABORATORIES, INC
Inventor： Thomas Holtzman Williams
Abstract: A system for detecting a failure along a transmission line of a cable plant is provided. The system includes a mobile vehicle configured to travel along a pathway substantially proximate to the cable plant along a span of the transmission line, and a transmitter disposed with the mobile vehicle. The transmitter is configured to emit (i) a test signal capable of ingressing the transmission line at a location of the failure, and (ii) an information signal containing location and velocity data of the mobile vehicle. The test signal is configured to provide phase shift and Doppler frequency information to a receiver operably connected to the transmission line at a location upstream from the location of the failure.
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公开(公告)号：US20190028310A1
公开(公告)日：2019-01-24
申请号：US16041415
申请日：2018-07-20
Applicant: CABLE TELEVISION LABORATORIES, INC
Inventor： Douglas D. Jones , Luis Alberto Campos , Thomas Holtzman Williams
Abstract: A method for transmitting a digital frame by an optical network unit in a digital communications network includes steps of arranging received data into a series of symbols, installing a primary cyclic prefix immediately preceding the series of symbols in time, and inserting individual ones of a plurality of secondary cyclic prefixes between each adjacent pair of symbols in the series of symbols. A length of each secondary cyclic prefix corresponds to a first duration shorter than an amount of time needed to turn on a laser of the optical network unit. The method further includes a step of providing to the optical network unit the digital frame. The digital frame includes the primary cyclic prefix, the plurality of secondary cyclic prefixes, and the series of symbols. The method further includes a step of modulating the provided digital frame by a laser of the optical network unit.
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