Patents Assigned to Cable Television Laboratories, Inc.
  • Patent number: 11563673
    Abstract: A method for redundant communication at a network gateway includes (1) exchanging data packets with a network application via a first access communication interface, (2) exchanging data packets with customer premises equipment (CPE) via a local communication interface, and (3) in response to occurrence of a first event, exchanging at least some data packets with the network application via a second access communication interface that is different from the first access communication interface.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: January 24, 2023
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Luther E. Smith, Bernard McKibben, Carmela S. Stuart, Jonathan Ray Dennis, Philip Rosenberg-Watt
  • Patent number: 11556364
    Abstract: Methods, systems, and devices for enabling public key infrastructure (PKI) in the generic could environment and the network function virtualization (NFV) environment. A host device may receive, from an orchestrator of a computer network environment, an indication of a workload to be executed by a virtual machine (VM) hosted on the host device, where the indication includes an identifier of the workload. The VM may transmit a request for a certificate to a hardware security module associated with the host device including the identifier of the workload. After transmitting the request for the certificate, the VM may receive the requested certificate from the HSM. In some cases, the VM may determine a private key associated with the workload and include the private key within the request for the certificate. Additionally or alternatively, the HSM may determine the private key. Here, the HSM may include the private key within the certificate.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: January 17, 2023
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Igor Faynberg, Steven J. Goeringer
  • Patent number: 11553223
    Abstract: A method is provided for displaying an immersive video content according to eye movement of a viewer includes the steps of detecting, using an eye tracking device, a field of view of at least one eye of the viewer, transmitting eye tracking coordinates from the detected field of view to an eye tracking processor, identifying a region on a video display corresponding to the transmitted eye tracking processor, adapting the immersive video content from a video storage device at a first resolution for a first portion of the immersive video content and a second resolution for a second portion of the immersive video content, the first resolution being higher than the second resolution, displaying the first portion of the immersive video content on the video display within a zone, and displaying the second portion of the immersive video content on the video display outside of the zone.
    Type: Grant
    Filed: September 6, 2021
    Date of Patent: January 10, 2023
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Isaac Elliott, Steve Glennon
  • Patent number: 11552806
    Abstract: A system for enhanced public key infrastructure is provided. The system includes a computer device. The computer device is programmed to receive a digital certificate including a composite signature field including a plurality of signatures. The plurality of signatures include at least a first signature and a second signature. The computer device is also programmed to retrieve, from the digital certificate, a first key associated with the first signature from the digital certificate. The computer device is further programmed to retrieve the first signature from the composite signature field. In addition, the at least one computer device is programmed to validate the first signature using the first key.
    Type: Grant
    Filed: August 9, 2019
    Date of Patent: January 10, 2023
    Assignee: Cable Television Laboratories, Inc.
    Inventor: Massimiliano Pala
  • Patent number: 11553357
    Abstract: Beamforming for adapting wireless signaling beams in an adaptive and agile manner is contemplated. The beamforming may be characterized by adaptively constructing beam form parameters to provide wireless signaling in a manner that maximizes efficiency and bandwidth according to device positioning relative to a responding base station.
    Type: Grant
    Filed: August 9, 2021
    Date of Patent: January 10, 2023
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Luis Alberto Campos, Jennifer Andreoli-Fang, Thomas Williams
  • Patent number: 11552852
    Abstract: A network device for maintaining a communication network is provided. The network device includes a transceiver configured for operable communication with at least one device. The network device also includes a processor including a memory configured to store computer-executable instructions. When executed by the processor the instructions cause the network device to store a plurality of network capabilities associated with a plurality of connectivity categories and a plurality of network settings, receive, from a first device, a connectivity advertisement including at least one connectivity category for the first device, retrieve a subset of the plurality of network capabilities based on the at least one connectivity category, determine one or more network settings for the network device based on the at least one connectivity category for the first device and the subset of network capabilities, and implement the one or more network setting on the network device.
    Type: Grant
    Filed: June 1, 2021
    Date of Patent: January 10, 2023
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Brian A. Scriber, Darshak Thakore, Kyle Haefner, Massimiliano Pala, Steven J. Goeringer, Tao Wan
  • Patent number: 11553398
    Abstract: A system for monitoring the communication with a connected Internet of Things (IoT) device is provided. The system includes a first computing device including a least one processor in communication with at least one memory device. 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 execute an IoT device communication application. The IoT device communication application monitors the IoT device. The instructions also cause the at least one processor to store IoT device data including a current location of the IoT device, determine an optimal communication path between the IoT device communication application and the IoT device based on the IoT device data, and transfer execution of the IoT device communication application to a second computing device based on the optimal communication path.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: January 10, 2023
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Igor Faynberg, Darshak Thakore, Donald E. A. Clarke, Steven J. Goeringer
  • Patent number: 11552831
    Abstract: A method for equalizer correction in a communication network includes (a) obtaining raw equalizer coefficients in a frequency domain, (b) removing time delay from the raw equalizer coefficients to generate corrected equalizer coefficients in a time domain such that a direct current (DC) corrected equalizer coefficient of the corrected equalizer coefficients has a phase of zero, and (c) converting the corrected equalizer coefficients from the time domain to the frequency domain.
    Type: Grant
    Filed: April 1, 2022
    Date of Patent: January 10, 2023
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Thomas Holtzman Williams, Luis Alberto Campos, Lin Cheng
  • Patent number: 11546080
    Abstract: A profile optimizing method is provided for a downstream channel transmission of active subcarriers to user devices. The method includes steps of receiving channel measurement data from each user device for each subcarrier, calculating a maximum bit-loading value for each user device per subcarrier, grouping the user devices into a plurality of clusters based on a proximity of the maximum bit-loading values of a first user device to those of a second user device within the particular cluster, assigning each user device within the particular cluster to a single cluster profile. A plurality of single cluster profiles for the plurality of clusters forms a set of cluster profiles. The method further includes steps of determining a channel capacity ratio for the set of cluster profiles, and combining at least two single profiles of the set of cluster profiles into a coalesced profile pair.
    Type: Grant
    Filed: April 5, 2019
    Date of Patent: January 3, 2023
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Karthik Sundaresan, Gregory C. White, Jingjie Zhu
  • Patent number: 11546058
    Abstract: A method for chromatic dispersion pre-compensation in an optical communication network includes (1) distorting an original modulated signal according to an inverse of a transmission function of the optical communication network, to generate a compensated signal, (2) modulating a magnitude of an optical signal in response to a magnitude of the compensated signal, and (3) modulating a phase of the optical signal, after modulating the magnitude of the optical signal, in response to a phase of the compensated signal.
    Type: Grant
    Filed: January 29, 2021
    Date of Patent: January 3, 2023
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Mu Xu, Zhensheng Jia, Haipeng Zhang, Luis Alberto Campos, Junwen Zhang
  • Patent number: 11546061
    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: March 8, 2021
    Date of Patent: January 3, 2023
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Junwen Zhang, Zhensheng Jia, Luis Alberto Campos, Haipeng Zhang, Mu Xu, Jing Wang, Curtis Dean Knittle, Chuang Zhou
  • Patent number: 11546229
    Abstract: A software defined networking (SDN) controller for a communication network is provided. The SDN controller includes a northbound interface, a southbound interface, and a database as a service (DBaaS) layer. The northbound interface includes an application layer having one or more independent SDN applications. The southbound interface includes an adapter layer having one or more independent device adapters. The DBaaS layer includes a persistent DBaaS unit and a state DBaaS unit.
    Type: Grant
    Filed: July 14, 2021
    Date of Patent: January 3, 2023
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Randy Levensalor, Steven M. Pisarski, Christopher J. Corcimiglia, Dan Schrimpsher
  • Patent number: 11545852
    Abstract: A method for remote monitoring includes (1) generating first sensor data from a first sensor at a first network node of a communications network and (2) sending the first sensor data from the first sensor to a second network node that is remote from the first network node, via the communications network. The first network node is powered from an electrical power grid that is separate from the communications network. The first sensor data may be raw sensor data and/or lossless sensor data.
    Type: Grant
    Filed: June 2, 2021
    Date of Patent: January 3, 2023
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Scott L. Caruso, Darshak Thakore, Stephen Glennon
  • Patent number: 11539396
    Abstract: An interface device for communicatively coupling a first communication medium and a second communication medium includes a radio frequency (RF) processor and a frequency shifting subsystem. The RF processor is configured to receive a first data signal from the first communication medium and convert the first data signal to a plurality of first internal RF signals having a common center frequency. The frequency shifting subsystem is configured to shift the plurality of first internal RF signals having the common center frequency to respective first external RF signals having different respective center frequencies, for transmission on the second communication medium. The second communication medium may be a coaxial electrical cable.
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: December 27, 2022
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Mario Di Dio, Stephen Glennon
  • Patent number: 11539442
    Abstract: A method for automatic power and modulation management in a communication network includes (1) generating a management function of (a) mutual information per symbol (MIPS) of the communication network and (b) output power (P) of a transmitter of the communication network, determining a selected MIPS value and a selected P value which achieve a maximum value of the management function, and causing the transmitter of the communication network to operate according to the selected MIPS value and the selected P value.
    Type: Grant
    Filed: November 3, 2021
    Date of Patent: December 27, 2022
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Mu Xu, Zhensheng Jia, Luis Alberto Campos, Chris Stengrim
  • Patent number: 11540144
    Abstract: Steering clients between access points (APs) or other sources of wireless signaling is contemplated. The client steering may be used to supplant or augment roaming capabilities of the clients with independent steering decisions made at the APs such as by utilizing information shared between the APs to generate a steering threshold for use in assessing whether clients should be steered from one AP to another.
    Type: Grant
    Filed: October 18, 2020
    Date of Patent: December 27, 2022
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Mufaddal Makati, John C. Bahr, Kevin E. Mahoney
  • Patent number: 11540129
    Abstract: A wireless communication network includes a plurality of first electronic devices configured for wireless communication, at least one second electronic device configured for wireless communication, and at least one access point configured to wirelessly receive client data from, and transmit network data to, the plurality of first electronic devices and the at least one second electronic device. The wireless communication network further includes a virtual private wireless communication sub-network that includes the plurality of first electronic devices and excludes the at least one second electronic device. The virtual private wireless communication sub-network is configured to enable each of the plurality of first electronic devices to automatically connect with the wireless communication network.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: December 27, 2022
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Belal Hamzeh, Bernardo Huberman
  • Patent number: 11539441
    Abstract: A method for laser chirp precompensation includes modulating an amplitude of an optical signal, in response to an amplitude of one of (i) a chirp-compensated signal generated via distortion of an original modulated signal according to an inverse of a chirp-response function of a laser and (ii) a first signal derived from the chirp-compensated signal, to yield an amplitude-modulated optical signal. The method also includes modulating a phase of the amplitude-modulated optical signal in response to a phase of one of (i) the chirp-compensated signal and (ii) a second signal derived from the chirp-compensated signal to yield a chirp-compensated optical signal.
    Type: Grant
    Filed: March 31, 2021
    Date of Patent: December 27, 2022
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Mu Xu, Junwen Zhang, Haipeng Zhang, Zhensheng Jia, Luis Alberto Campos, Curtis D. Knittle
  • Patent number: 11539432
    Abstract: A skew compensation system for a coherent optical communication network includes a transmitter modulator having a first driver input for receiving a first signal from a first channel, a second driver input for receiving a second signal from a second channel, a source input for receiving a continuous wave source signal, and a modulation output in communication with an optical transport medium of the network. The system further includes a tunable delay line disposed between the second channel and the second driver input for inserting a pre-determined training sequence onto the second signal prior to the second driver input, and a processor for determining a skew amount between the second signal at the second driver input and the first signal at the first driver input, calculating a pre-compensation value corresponding to the skew amount, and reducing the skew amount at the modulation output according to the pre-compensation value.
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: December 27, 2022
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Mu Xu, Luis Alberto Campos, Haipeng Zhang, Junwen Zhang, Zhensheng Jia
  • Patent number: 11540032
    Abstract: An optical network communication system utilizes a passive optical network (PON) and includes an optical line terminal (OLT) having a downstream transmitter and an upstream receiver, and an optical network unit (ONU) having a downstream receiver and an upstream transmitter. The downstream transmitter is configured to provide a coherent downlink transmission, and the downstream receiver is configured to obtain one or more downstream parameters from the coherent downlink transmission. The system further includes a long fiber configured to carry the coherent downlink transmission between the OLT and the ONU. The ONU is configured to communicate to the OLT a first upstream ranging request message, the OLT is configured to communicate to the ONU a first downstream acknowledgement in response to the upstream first ranging request message, and the ONU is configured to communicate to the OLT a second upstream ranging request message based on the first downstream acknowledgement.
    Type: Grant
    Filed: June 14, 2021
    Date of Patent: December 27, 2022
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Luis Alberto Campos, Zhensheng Jia, Matthew Schmitt, Curtis Dean Knittle