Patents Assigned to Cable Television Laboratories
  • Patent number: 11483101
    Abstract: Systems and methods presented herein provide for channel reservation for a wireless telephony system operating in an RF band with a wireless system comprising a conflicting wireless technology. One method is operable with an eNodeB. The method includes assigning an ID (e.g., a pseudorandom number sequence, or “PN sequence”) to a user equipment (UE) operating in the RF band, processing a scheduling request for uplink (UL) data from the UE, and granting a time and a frequency for the UE to transmit the UL data. The method also includes waiting until the UE performs a Listen Before Talk (LBT) operation to determine whether the granted time and frequency is occupied by another wireless system employing a different wireless technology. The method also includes transmitting the ID to the UE to reserve the granted time and frequency when unoccupied by the other wireless system, and processing the UL data from the UE.
    Type: Grant
    Filed: June 24, 2019
    Date of Patent: October 25, 2022
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Jennifer Andreoli-Fang, Alireza Babaei
  • Patent number: 11483798
    Abstract: A notification server is provided for a multi-network wireless communication system. The notification server includes a processor and a memory having computer executable instructions stored therein. The instructions, when executed by the processor, cause the processor to receive first device information from a mobile communication device wirelessly connected to a macro cell network of the multi-network wireless communication system. The instructions further cause the processor to determine, based on the received first device information, that a small cell network of the multi-network wireless communication system is available for communication with the mobile communication device. The instructions further cause the processor to transmit a notification to the mobile communication device to search for the small cell network for transition thereto.
    Type: Grant
    Filed: January 21, 2021
    Date of Patent: October 25, 2022
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Omkar Dharmadhikari, Bernard McKibben
  • Patent number: 11476923
    Abstract: A communication system includes an earth station configured to receive a downlink transmission from a satellite and transmit an uplink transmission to the satellite. The communication system further includes a server in operable communication with the earth station, a beacon detector in operable communication with the server, an access point configured to operate within a proximity of the earth station, and a beacon transmitter disposed within close proximity to the access point. The beacon transmitter is configured to transmit a beacon signal to one or more of the server and the beacon detector. The beacon signal uniquely identifies the access point. The server is configured to implement a measurement-based protection scheme with respect to at least one of the downlink transmission and the uplink transmission.
    Type: Grant
    Filed: January 28, 2021
    Date of Patent: October 18, 2022
    Assignee: Cable Television Laboratories, Inc.
    Inventor: Peter Paul Smyth
  • Patent number: 11476949
    Abstract: A communication network includes a coherent optics transmitter, a coherent optics receiver, an optical transport medium operably coupling the coherent optics transmitter to the coherent optics receiver, and a coherent optics interface. The coherent optics interface includes a lineside interface portion, a clientside interface portion, and a control interface portion.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: October 18, 2022
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Luis Alberto Campos, Zhensheng Jia, Matthew D. Schmitt
  • Patent number: 11477118
    Abstract: Preemptive caching within content/name/information centric networking environment is contemplated. The preemptively caching may be performed within content/name/information centric networking environments of the type having a branching structure or other architecture sufficient to facilitate routing data, content, etc. such that one or more nodes other than a node soliciting a content object also receive the content object.
    Type: Grant
    Filed: June 16, 2020
    Date of Patent: October 18, 2022
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Greg White, Greg Rutz
  • Patent number: 11476975
    Abstract: A receiver is configured to capture a plurality of linearly distorted OFDM symbols transmitted over a signal path. The receiver forms the captured OFDM symbols into an overlapped compound data block that includes payload data and at least one pseudo-extension, processes the overlapped compound block with circular convolution in the time domain using an inverse channel response, or frequency domain equalization, to produce an equalized compound block, and discards end portions of the equalized block to produce a narrow equalized block. The end portion corresponds with the pseudo-extension, and the narrow block corresponds with the payload data. The receiver cascades multiple narrow equalized blocks to form a de-ghosted signal stream of OFDM symbols. The OFDM symbols may be OFDM or OFDMA, and may or may not include a cyclic prefix, which will have a different length from the pseudo-extension.
    Type: Grant
    Filed: May 10, 2021
    Date of Patent: October 18, 2022
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Thomas H. Williams, Gregory Charles White
  • Patent number: 11477247
    Abstract: A remote attestation system for a computer network includes an attestation operations subsystem configured to manage attestation procedures for the remote attestation system, and an attestation server pool including a plurality of attestation servers. The plurality of attestation servers is configured to perform attestation of at least one host in a data center. The system further includes an attestation state database configured to store a state of attestation of the at least one host, an attestation policy database configured to store at least one operator policy of the computer network, and an end-user service portal configured to provide access to the remote attestation system by users of the computer network.
    Type: Grant
    Filed: February 5, 2021
    Date of Patent: October 18, 2022
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Steven J. Goeringer, Igor Faynberg, Donald E. A. Clarke
  • Patent number: 11469826
    Abstract: A coherent optical transmitter is in operable communication with an optical fiber an includes a plurality of analog-to-digital converters (ADCs) configured to (i) receive a plurality of radio frequency analog input signals, respectively, and (ii) convert the received plurality of RF analog input signals into a plurality of respective digital data streams. The transmitter further includes a source laser configured to output at least two orthogonal polarization component signals, and at least two polarization modulators configured to modulate (i) an in-phase portion output from a first ADC, (ii) an in-quadrature portion output from a second ADC, and (iii) one polarization component signal of the at least two orthogonal polarization component signals. The transmitter further includes a polarization beam combiner configured to (i) multiplex the respective outputs of the at least two polarization modulators, and (ii) transmit the multiplexed output from the polarization beam combiner to the optical fiber.
    Type: Grant
    Filed: January 26, 2021
    Date of Patent: October 11, 2022
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Luis Alberto Campos, Zhensheng Jia
  • Patent number: 11469825
    Abstract: An injection locked transmitter for an optical communication network includes a master seed laser source input substantially confined to a single longitudinal mode, an input data stream, and a laser injected modulator including at least one slave laser having a resonator frequency that is injection locked to a frequency of the single longitudinal mode of the master seed laser source. The laser injected modulator is configured to receive the master seed laser source input and the input data stream, and output a laser modulated data stream.
    Type: Grant
    Filed: August 9, 2021
    Date of Patent: October 11, 2022
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Chuang Zhou, Zhensheng Jia, Luis Alberto Campos, Curtis Dean Knittle, Jing Wang
  • Patent number: 11470477
    Abstract: The present disclosure generally relates to apparatus, software and methods for thwarting radio spoofing techniques by requiring and sending data from multiple radios positioned such that the receiving client can determine that it came from multiple spatially separated radios due to the Angle of Arrival of each radio's signal.
    Type: Grant
    Filed: August 16, 2019
    Date of Patent: October 11, 2022
    Assignee: Cable Television Laboratories, Inc.
    Inventors: John C. Bahr, David Daniel Smith
  • Patent number: 11469822
    Abstract: A digital mobile fronthaul (MFH) network includes a baseband processing unit (BBU) having a digitization interface configured to digitize, using delta-sigma digitization, at least one wireless service for at least one radio access technology. The network further includes a transport medium in operable communication with the BBU. The transport medium is configured to transmit a delta-sigma digitized wireless service from the BBU. The network further includes a remote radio head (RRH) configured to operably receive the delta-sigma digitized wireless service from the BBU over the transport medium.
    Type: Grant
    Filed: December 7, 2020
    Date of Patent: October 11, 2022
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Jing Wang, Zhensheng Jia, Luis Alberto Campos
  • Patent number: 11468273
    Abstract: The present disclosure generally relates to apparatus, software and methods for detecting and classifying anomalous features in one-dimensional data. The apparatus, software and methods disclosed herein use a YOLO-type algorithm on one-dimensional data. For example, the data can be any one-dimensional data or time series, such as but not limited to be power over time data, signal to noise ratio (SNR) over time data, modulation error ratio (MER) data, full band capture data, radio frequency data, temperature data, stock data, or production data. Each type of data may be susceptible to repeating phenomena that produce recognizable anomalous features. In some embodiments, the features can be characterized or labeled as known phenomena and used to train a machine learning model via supervised learning to recognize those features in a new data series.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: October 11, 2022
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Jingjie Zhu, Karthik Sundaresan
  • Patent number: 11463164
    Abstract: A method for implementing an out-of-band communication channel in a coherent optical access network includes steps (a)-(e). Step (a) includes separating a MAC-layer signal received from a media access control (MAC) layer into an initial communication-channel signal and an initial data-channel signal. Step (b) includes encoding, using a first signal-coding scheme within a transceiver of a coherent passive optical network (PON), the initial communication-channel signal into a communication-channel signal occupying a first frequency band. Step (c) includes encoding, using a second signal-coding scheme within the transceiver, the initial data-channel signal into a data-channel signal occupying a second frequency band not overlapping the first frequency band. Step (d) includes combining the communication-channel signal and the data-channel signal to yield an analog signal.
    Type: Grant
    Filed: July 24, 2021
    Date of Patent: October 4, 2022
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Junwen Zhang, Zhensheng Jia, Curtis D. Knittle, Luis Alberto Campos
  • Patent number: 11456910
    Abstract: A carrier-phase recovery method includes: (i) applying a first carrier-phase recovery algorithm to complex-valued symbols of a signal received by a product detector, yielding coarse phase-estimates, the signal being modulated per an M-QAM scheme; (ii) modelling the coarse phase-estimates as a weighted sum of M probability-density functions of an M-component mixture model; (iii) optimizing the M probability-density functions with an expectation-maximization algorithm to yield M optimized probability-density functions; (iv) mapping, based on the M optimized probability-density functions, the coarse phase-estimates to one of M symbols corresponding to the QAM scheme, each coarse phase-estimate mapped to a same symbol belonging to a same one of M clusters; (v) applying a second carrier-phase recovery algorithm to each of the M clusters to generate refined phase-estimates each corresponding to a respective coarse phase-estimate; and (vi) mapping, based on the M optimized probability-density functions, each refined
    Type: Grant
    Filed: December 21, 2020
    Date of Patent: September 27, 2022
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Mu Xu, Zhensheng Jia
  • Patent number: 11457060
    Abstract: A method and system of ID based content delivery where the selection and transmission of content is facilitated with use of version IDs associated with each available version of each particular piece of content. A relationship may be generated between the available versions in the version IDs to facilitate determining the version ID associated with a version desired for rendering at a particular type of terminal.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: September 27, 2022
    Assignee: Cable Television Laboratories, Inc.
    Inventors: David K. Broberg, J. Clarke Stevens, Judson D. Cary
  • Patent number: 11451020
    Abstract: Generating an assessment of the suitability of cables, ducts, tubes, pipes and/or other hollow-type of conduits to extraction of cores, conductors, insulation, etc. included therein while still buried in the ground or otherwise positioned out-of-sight so as to be unavailable for visual and/or physical inspection is contemplated. The assessment may be used to indicate a suitability of a cable buried in the ground of a hybrid fiber coaxial (HFC) cable plant to extraction of the type whereby a core of the cable may be extracted using hydraulics while still buried.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: September 20, 2022
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Luis Alberto Campos, Thomas Holtzman Williams, Zhensheng Jia
  • Patent number: 11451888
    Abstract: An optical access network includes an optical hub having at least one processor. The network further includes a plurality of optical distribution centers connected to the optical hub by a plurality of optical fiber segments, respectively, and a plurality of geographic fiber node serving areas. Each fiber node serving area of the plurality of fiber node serving areas includes at least one optical distribution center of the plurality of optical distribution centers. The network further includes a plurality of endpoints. Each endpoint of the plurality of endpoints is in operable communication with at least one optical distribution center. The network further includes a point-to-point network provisioning system configured to (i) evaluate each potential communication path over the plurality of optical fiber segments between a first endpoint and a second endpoint, and (ii) select an optimum fiber path based on predetermined path selection criteria.
    Type: Grant
    Filed: January 2, 2021
    Date of Patent: September 20, 2022
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Luis Alberto Campos, Zhensheng Jia, Carmela Stuart
  • Patent number: 11451298
    Abstract: An optical network communication system includes an optical hub, an optical distribution center, at least one fiber segment, and at least two end users. The optical hub includes an intelligent configuration unit configured to monitor and multiplex at least two different optical signals into a single multiplexed heterogeneous signal. The optical distribution center is configured to individually separate the at least two different optical signals from the multiplexed heterogeneous signal. The at least one fiber segment connects the optical hub and the optical distribution center, and is configured to receive the multiplexed heterogeneous signal from the optical hub and distribute the multiplexed heterogeneous signal to the optical distribution center. The at least two end users each include a downstream receiver configured to receive one of the respective separated optical signals from the optical distribution center.
    Type: Grant
    Filed: January 2, 2019
    Date of Patent: September 20, 2022
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Luis Alberto Campos, Zhensheng Jia
  • Patent number: 11444862
    Abstract: A method for predicting network-traffic bursts includes identifying, in data received by a networking device, a plurality of network-traffic bursts, each of the plurality of network-traffic bursts occurring at a respective one of plurality of burst-times {tN, tN?1, . . . , t0}. The method includes determining a time-interval ?n of a next burst occurring at ?n after burst-time t1 by determining respective values of ?n, a parameter ?, and a parameter ?, that minimize, to within a tolerance, a quantity (ƒk(?,?,k)?(?n?tk)) for at least three values of a integer k. Parameters ? and ? are, respectively, a real and imaginary part of a power-law exponent of a power law relating predicted time-interval ?n to any of the plurality of burst-times. The method includes determining, from a cumulative distribution function of a normal distribution of previously-identified network-traffic bursts, a time-duration during which the networking device may reallocate bandwidth.
    Type: Grant
    Filed: September 14, 2020
    Date of Patent: September 13, 2022
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Bernardo Huberman, Scott H. Clearwater
  • Patent number: 11444948
    Abstract: A system for detecting and profiling endpoints of a computer network is provided. The system includes a first computing device including at least one processor in communication with at least one memory device. The first computing device is in communication with a computer network. The at least one memory device stores a plurality of instructions, which when executed by the at least one processor cause the at least one processor to receive a plurality of packets transmitted to the computer network, determine an identity of a first end point device associated with the plurality of packets, determine a behavior pattern for the first end point device based on the plurality of packets, and generate a synthetic profile for the first end point device based on the identity and the behavior pattern.
    Type: Grant
    Filed: August 26, 2019
    Date of Patent: September 13, 2022
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Steven J. Goeringer, Darshak Thakore