Patents Assigned to Cable Television Laboratories, Inc.
  • Patent number: 11362743
    Abstract: Systems and methods provide for a network test that by capturing in-phase values of a reflected signal off a transmission medium or irregularity therein. The in-phase values are converted to time-domain, which is then halved and converted back to the frequency domain to identify calculated quadrature values associated with the measured in-phase values. The measured in-phase values and calculated quadrature values may be used to determine impedance reflection/transmission characteristics of transmission medium or an irregularity therein. The measured in-phase values and calculated quadrature values may be used to determine if the transmission medium is minimum phase.
    Type: Grant
    Filed: August 24, 2021
    Date of Patent: June 14, 2022
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Thomas Holtzman Williams, Lin Cheng
  • Patent number: 11356380
    Abstract: A scheduling device for managing a packet queue of a communication gateway includes a receiving portion configured to receive data packets according to at least one communication protocol, a processor, and classification module configured to separate the received data packets into a first traffic queue and a second traffic queue separate from the first traffic queue. The first traffic queue includes a low latency service flow classified to have strict priority. The second traffic queue includes a primary service flow classified as having a classic priority. The classification module separates the received data packets so that those with a first indicator are sent to the first traffic queue and those without the first indicator are sent to the second traffic queue.
    Type: Grant
    Filed: March 8, 2021
    Date of Patent: June 7, 2022
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Gregory Charles White, Steve Glennon, Karthik Sundaresan, Luis Alberto Campos, Robert J. Briscoe
  • Patent number: 11349592
    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.
    Type: Grant
    Filed: March 29, 2021
    Date of Patent: May 31, 2022
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Mu Xu, Zhensheng Jia, Haipeng Zhang, Luis Alberto Campos
  • Patent number: 11349673
    Abstract: A system for monitoring the status of digital certificates is provided. The system includes a responder computer device. The responder computer device is programmed to store, in a database, a plurality of statuses associated with a plurality of digital certificates. The responder computer device is further programmed to receive, from a first computer device, a request message including an identifier of a target certificate. The responder computer device is further programmed to query the database to retrieve status information about the target certificate, generate a response message based on the retrieved status information, and transmit the response message to the first computer device.
    Type: Grant
    Filed: January 22, 2019
    Date of Patent: May 31, 2022
    Assignee: Cable Television Laboratories, Inc.
    Inventor: Massimiliano Pala
  • Patent number: 11349573
    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: February 22, 2021
    Date of Patent: May 31, 2022
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Luis Alberto Campos, Zhensheng Jia, Matthew D. Schmitt
  • Patent number: 11343155
    Abstract: The present disclosure generally relates to apparatus, software and methods for predicting future network traffic. The disclosed apparatus, software and methods alleviate congestion and/or increase overall traffic flow by providing methods for reallocating future idle capacity.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: May 24, 2022
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Bernardo Huberman, Scott H. Clearwater
  • Patent number: 11343854
    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.
    Type: Grant
    Filed: July 31, 2020
    Date of Patent: May 24, 2022
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Thomas Sandholm, Belal Hamzeh, Bernardo Huberman
  • Patent number: 11343226
    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.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: May 24, 2022
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Steven J. Goeringer, Michael Glenn, Brian A. Scriber, Brady Johnson, Mark Deazley, Darshak Thakore, Mark Walker
  • Patent number: 11337121
    Abstract: A method for communicating between base stations of two different wireless communication networks may include (1) transmitting a setup request message from a first base station of a first wireless communication network to a second base station of a second wireless communication network, the setup request message including a first user equipment (UE) device context format of the first wireless communication network and a second UE device context format of the second wireless communication network; (2) receiving, at the first base station, a setup response from the second base station, the setup response including a union of the first UE device context format and the second UE device context format; and (3) at the first base station, communicating with the second base station according to the union of the first UE device context format and the second UE device context format.
    Type: Grant
    Filed: March 9, 2020
    Date of Patent: May 17, 2022
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Joseph Padden, Jennifer Andreoli-Fang
  • Patent number: 11330476
    Abstract: Systems and methods presented herein provide for reducing latency in wireless service through a communication link comprising a Modem Termination System (MTS) and a modem. The communication link is coupled with a virtualized wireless link. In one embodiment, a method includes transferring a buffer status report (BSR) from a user equipment (UE) through the communication link to a control portion of the virtualized wireless link, generating a wireless grant to allow the data of the UE through virtualized wireless link, and generating a backhaul grant for the UE to transfer data through the communication link based on the wireless grant information.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: May 10, 2022
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Jennifer Andreoli-Fang, Bernard McKibben
  • Patent number: 11323359
    Abstract: Multi-channel communication over wired and/or wireless communication mediums is contemplated. The multi-channel communication may be of the type sufficient to facilitate data delivery utilizing two or more channels/paths associated with an access point configured to facilitate communications with a plurality of devices. The multi-channel communications may be controlled to maximize performance through limitations placed on communications permitted over one or more of the channels/paths.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: May 3, 2022
    Assignee: Cable Television Laboratories, Inc.
    Inventor: Luther E. Smith
  • Patent number: 11323180
    Abstract: An analog signal processor includes a sampling unit configured to (i) filter, in the frequency domain, a received time domain analog signal into a low-frequency end of a corresponding frequency spectrum, (ii) sample the filtered analog signal at a frequency substantially higher than the low-frequency end, and (iii) spread quantization noise over an expanded Nyquist zone of the corresponding frequency spectrum. The processor further includes a noise shaping unit configured to shape the spread quantization noise out of the low-frequency end of the corresponding frequency spectrum such that the filtered analog signal and the shaped quantization noise are substantially separated in the frequency domain, and a quantization unit configured to apply delta-sigma modulation to the filtered analog signal using at least one quantization bit, and output a digitized bit stream that substantially follows the amplitude of the received time domain analog signal.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: May 3, 2022
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Zhensheng Jia, Luis Alberto Campos, Curtis Dean Knittle, Jing Wang
  • Patent number: 11316715
    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.
    Type: Grant
    Filed: July 21, 2021
    Date of Patent: April 26, 2022
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Jason W. Rupe, Thomas Holtzman Williams, Lin Cheng, Jingjie Zhu
  • Patent number: 11316935
    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.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: April 26, 2022
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Steven J. Goeringer, Brian A. Scriber, Michael Glenn, Brady Johnson, Mark Deazley, Darshak Thakore
  • Patent number: 11316600
    Abstract: Systems and methods for classifying interference in data signals received by a terminal device (or other end-user or endpoint device) transacting data in a data transfer network are disclosed. Embodiments include defining an array of signal quality metrics at the terminal device, where each signal quality metric is associated with a subcarrier of a data channel used to transfer data with the data transfer network. The array of signal quality metrics may be input to a classification model and the classification model may output a type, sources, and/or cause of disruptions such as interference identified in the signal quality data. In some cases, the output may include frequency characteristics such as a center frequency and/or bandwidth of the identified signal disruption. The terminal device may transmit a message to an upstream device of the data transfer network, which may indicate the identified interference.
    Type: Grant
    Filed: January 23, 2020
    Date of Patent: April 26, 2022
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Jingjie Zhu, Jason W. Rupe
  • Patent number: 11309969
    Abstract: An injection locked transmitter for an optical communication network includes a primary seed laser source input substantially confined to a single longitudinal mode, an input data stream, and a laser injected modulator including at least one secondary laser having a resonator frequency that is injection locked to a frequency of the single longitudinal mode of the primary seed laser source. The laser injected modulator is configured to receive the primary seed laser source input and the input data stream, and output a laser modulated data stream.
    Type: Grant
    Filed: February 8, 2021
    Date of Patent: April 19, 2022
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Zhensheng Jia, Luis Alberto Campos, Curtis Dean Knittle
  • Patent number: 11310773
    Abstract: A method for allocating aggressive signal carriers in a target band of a wireless communication network is provided. The network includes at least one long term evolution (LTE) node and at least one non-LTE transmission source. The target band includes at least two adjacent pairs of contiguous radio frequency (RF) channels. The method includes steps of scanning each contiguous RF channel of the target band to measure a respective value of non-LTE RF energy therein, determining, from the measured non-LTE RF energy, that a first one of the contiguous RF channels is occupied by a non-LTE carrier, and allocating an LTE carrier to a second one of the contiguous RF channels, different than the first one of the contiguous RF channels, based on the determination.
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: April 19, 2022
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Dorin Gheorghe Viorel, Jennifer Andreoli-Fang, Neeharika Allanki
  • Patent number: 11303486
    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.
    Type: Grant
    Filed: March 2, 2020
    Date of Patent: April 12, 2022
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Douglas D. Jones, Luis Alberto Campos, Thomas Holtzman Williams
  • Patent number: 11303386
    Abstract: The present disclosure generally relates to systems, methods and software for quantitatively comparing an overall capacity improvement for a channel used for transmissions to a population of user devices when an existing profile is replaced with a proposed profile. Additionally, the quantitative comparison can be used to prioritize profile changes and/or network maintenance.
    Type: Grant
    Filed: July 23, 2020
    Date of Patent: April 12, 2022
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Jason W. Rupe, Jingjie Zhu, Karthik Sundaresan
  • Patent number: 11297650
    Abstract: A method for detecting aggressive signal transmission signatures in a wireless communication network is provided. The network includes at least one cooperative device, an access point, and at least one non-cooperative device. The method includes steps of generating a matrix of at least 8 bits configured to register each instance of at least one of a clear-to-send frame and a request-to-send frame transmitted between the at least one cooperative device and the access point during a specified duration, calculating a cumulative distribution function based on the registered instances within the generated matrix for a probability of the presence of an aggressive transmission signal by the at least one non-cooperative device within a measurable vicinity of one or more of the cooperative device and the access point, and determining the presence of the aggressive transmission signal based on the calculated cumulative distribution function being greater than a predetermined threshold.
    Type: Grant
    Filed: May 18, 2020
    Date of Patent: April 5, 2022
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Dorin Gheorghe Viorel, Jennifer Andreoli-Fang, Belal Hamzeh, Josh Redmore, Carey Sonsino