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公开(公告)号：US11349592B1
公开(公告)日：2022-05-31
申请号：US17216435
申请日：2021-03-29
Applicant: CABLE TELEVISION LABORATORIES, INC.
Inventor： Mu Xu , Zhensheng Jia , Haipeng Zhang , Luis Alberto Campos
IPC: H04J14/00 , H04J14/02 , H04B10/2519 , H04B10/27 , H04B10/532 , H04B10/516
Abstract: An optical communication network includes a downstream optical transceiver. The downstream optical transceiver includes at least one coherent optical transmitter configured to transmit a downstream coherent dual-band optical signal having a left-side band portion, a right-side band portion, and a central optical carrier disposed within a guard band between the left-side band portion and the right-side band portion. The network further includes an optical transport medium configured to carry the downstream coherent dual-band optical signal from the downstream optical transceiver. The network further includes at least one modem device operably coupled to the optical transport medium and configured to receive the downstream coherent dual-band optical signal from the optical transport medium. The at least one modem device includes a downstream coherent optical receiver, and a first slave laser injection locked to a frequency of the central optical carrier.
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公开(公告)号：US11343854B2
公开(公告)日：2022-05-24
申请号：US16945466
申请日：2020-07-31
Applicant: CABLE TELEVISION LABORATORIES, INC.
Inventor： Thomas Sandholm , Belal Hamzeh , Bernardo Huberman
Abstract: A novel method that dynamically changes the contention window of access points based on system load to improve performance in a dense Wi-Fi deployment is disclosed. A key feature is that no MAC protocol changes, nor client side modifications are needed to deploy the solution. Setting an optimal contention window can lead to throughput and latency improvements up to 155%, and 50%, respectively. Furthermore, an online learning method that efficiently finds the optimal contention window with minimal training data, and yields an average improvement in throughput of 53-55% during congested periods for a real traffic-volume workload replay in a Wi-Fi test-bed is demonstrated.
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公开(公告)号：US20220158732A1
公开(公告)日：2022-05-19
申请号：US17588875
申请日：2022-01-31
Applicant: CABLE TELEVISION LABORATORIES, INC.
Inventor： Jing Wang , Luis Alberto Campos , Zhensheng Jia , Curtis Dean Knittle
IPC: H04B10/2507 , H03M3/00
Abstract: A baseband processing unit includes a baseband processor configured to receive a plurality of component carriers of a radio access technology wireless service, and a delta-sigma digitization interface configured to digitize at least one carrier signal of the plurality of component carriers into a digitized bit stream, for transport over a transport medium, by (i) oversampling the at least one carrier signal, (ii) quantizing the oversampled carrier signal into the digitized bit stream using two or fewer quantization bits.
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公开(公告)号：US11316935B2
公开(公告)日：2022-04-26
申请号：US16576747
申请日：2019-09-19
Applicant: CABLE TELEVISION LABORATORIES, INC
Inventor： Steven J. Goeringer , Brian A. Scriber , Michael Glenn , Brady Johnson , Mark Deazley , Darshak Thakore
Abstract: A wireless communication system includes an external provider subsystem and an electronic network subsystem in operable communication with the external provider subsystem. The electronic network subsystem is configured to provide a first microservice and a second microservice different from the first microservice. The wireless communication system further includes an in-home subsystem (i) separate from the external provider subsystem, (ii) in operable communication with the electronic network subsystem, and (iii) including a first micronet and a second micronet different from the first micronet. The first micronet is configured to operably interact with the first microservice, and the second micronet is configured to operably interact with the second microservice. The wireless communication system further includes at least one electronic device configured to operably connect with one of the first micronet and the second micronet.
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95.发明授权公开(公告)号：US11316715B1
公开(公告)日：2022-04-26
申请号：US17382139
申请日：2021-07-21
Applicant: Cable Television Laboratories, Inc.
Inventor： Jason W. Rupe , Thomas Holtzman Williams , Lin Cheng , Jingjie Zhu
IPC: H04L25/02
Abstract: A method for automatically identifying an impairment of a communication medium includes (1) obtaining a spectrum response of communication signals traveling through the communication medium, (2) converting the spectrum response from a frequency domain to a time domain, to generate an impulse response, and (3) identifying the impairment of the communication medium at least partially based on one or more characteristics of the impulse response.
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Patent Agency Ranking
公开(公告)号：US20220123839A1
公开(公告)日：2022-04-21
申请号：US17562671
申请日：2021-12-27
Applicant: CABLE TELEVISION LABORATORIES, INC.
Inventor： LUIS ALBERTO CAMPOS
Abstract: Methods, systems, and devices for network communications to reduce optical beat interference (OBI) in upstream communications are described. For example, a fiber node may provide a seed source to injection lock upstream laser diodes. Therefore, upstream communications from each injection locked laser diode may primarily include the wavelength associated with each seed source. The seed sources may be unique to each end device and configured to minimize OBI. That is, the upstream laser diodes may be generic, but the collected seed source may enable upstream communications at varying wavelengths. The end device may provide upstream communications by externally modulating a signal generated by the injection locked laser diode.
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公开(公告)号：US11303486B2
公开(公告)日：2022-04-12
申请号：US16806969
申请日：2020-03-02
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
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：US20220109582A1
公开(公告)日：2022-04-07
申请号：US17554873
申请日：2021-12-17
Applicant: CABLE TELEVISION LABORATORIES, INC.
Inventor： Steven J. Goeringer , Brian A. Scriber , Darshak Thakore , Massimiliano Pala
Abstract: A method is provided for automating management of automatic renewal of a public key infrastructure (PM) certificate issued by a certificate authority (CA) for a subscriber. The method includes steps of causing the subscriber to (i) transmit a first alert to a management entity for initiating renewal of the PKI certificate, and (ii) transmit a certificate signing request (CSR) to a registration authority (RA) for issuance of a renewal certificate. The method further includes steps of (iii) transmitting, from the RA to the CA, the CSR signed by the RA, (iv) receiving, at the RA from the CA, an issued renewal certificate signed by the CA, (v) sending, from the RA to the subscriber, the issued renewal certificate signed by the CA, and (vi) causing the subscriber to transmit a second alert to a management entity indicating renewal of the PM certificate.
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公开(公告)号：US20220103414A1
公开(公告)日：2022-03-31
申请号：US17643980
申请日：2021-12-13
Applicant: Cable Television Laboratories, Inc.
Inventor： Luis Alberto Campos , Jennifer Andreoli-Fang , Judson D. Cary , David Daniel Smith
Abstract: A method for transmitting data through a multi-media communication network includes converting transmission entities into data symbols at a first communication device, transmitting the data symbols from the first communication device to a second communication device through at least two different types of communication media using only lower PHY layers of the at least two different types of communication media, and converting the data symbols into transmission entities at the second communication device. A network implementing a universal data link includes a first communication device configured to convert transmission entities into data symbols, a second communication device configured to convert the data symbols into transmission entities, at least a first communication medium and a second communication medium communicatively coupled between the first communication device and the second communication device, and a first physical-layer translator configured to translate data symbols without converting the data symbols into transmission entities.
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公开(公告)号：US11290916B1
公开(公告)日：2022-03-29
申请号：US16886206
申请日：2020-05-28
Applicant: CABLE TELEVISION LABORATORIES, INC.
Inventor： Daryl William Malas , Eric Winkelman , Gregory C. White , Mario Di Dio , Richard D. Terpstra , Steve Higgins
Abstract: A method for wireless communication network control includes (1) receiving, at an information technology (IT) device, a first steering policy from an application manager remote from the IT device, the first steering policy specifying a first allocation of data among a plurality of wireless communication links available to the IT device; and (2) sending uplink or downlink data from a first application client on the IT device to a mobility manager remote from the IT device over at least one of the plurality of wireless communication links available to the IT device, according to the first allocation of data.
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