Patents Assigned to Cable Television Laboratories, Inc.
  • Patent number: 11974159
    Abstract: A method for reducing communication network congestion includes (1) obtaining, from a first communication device, a scan of a first communication channel for presence of a first network identifier, (2) determining, from the scan of the first communication channel, that the first network identifier is being broadcasted on the first communication channel by a communication device other than the first communication device, and (3) in response to determining that the first network identifier is being broadcasted on the first communication channel, inhibiting broadcasting of the first network identifier on the first communication channel by the first communication device.
    Type: Grant
    Filed: February 3, 2022
    Date of Patent: April 30, 2024
    Assignee: Cable Television Laboratories, Inc.
    Inventors: John C. Bahr, Luther E. Smith
  • Patent number: 11968316
    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: January 9, 2023
    Date of Patent: April 23, 2024
    Assignee: Cable Television Laboratories, Inc.
    Inventor: Massimiliano Pala
  • Patent number: 11968548
    Abstract: A method for reducing communication network performance degradation using in-band telemetry data includes (1) receiving, at an analytics engine of a communication network, first telemetry data from a first network element of the communication network, the first telemetry data being based on in-band telemetry data at the first network element; (2) determining from the first telemetry data that there is performance degradation in at least a portion of the communication network; and (3) in response to determining that there is performance degradation in at least the portion of the communication network, sending a message from the analytics engine to a second network element of the communication network.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: April 23, 2024
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Randy Levensalor, Joseph Padden
  • Patent number: 11968001
    Abstract: A method of reducing transmission power for an encoded data stream includes the steps of receiving an incoming data stream having equal probability for a plurality of incoming data bits, assigning a symbol scheme to the received data bits of the incoming data stream according to probabilities of occurrence of individual ones of the received data bits, and transmitting an outgoing data stream according to the assigned symbol scheme having a second average transmit power, different than the first average transmit power, for a plurality of outgoing symbols.
    Type: Grant
    Filed: February 27, 2023
    Date of Patent: April 23, 2024
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Thomas H. Williams, Gregory Charles White
  • Patent number: 11962476
    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: January 2, 2023
    Date of Patent: April 16, 2024
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Randy Levensalor, Steven M. Pisarski, Christopher J. Corcimiglia, Dan Schrimpsher
  • Patent number: 11962826
    Abstract: An authenticating system and process for authenticating user devices to a access a service where access to certain portions of the service may be limited according to a access point or other device used by a user device to facilitate interfacing a user with the service. The authentication may be achieved without directly assessing a trustworthiness of the user devices, and optionally, without requiring a user thereof to complete a sign-on operation.
    Type: Grant
    Filed: November 29, 2021
    Date of Patent: April 16, 2024
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Seetharama R. Durbha, Oscar Marcia, Stuart Hoggan, Simon Krauss
  • Patent number: 11963075
    Abstract: A mesh wireless access point (WAP) includes a housing, a first radio assembly, a second radio assembly, and an internal communication link between the first and second radio assemblies. The housing is configured to be affixed to, or integrated with, a feature of a building. The first radio assembly is incorporated with the housing and configured to support a first wireless communication link, and the second radio assembly is incorporated with the housing and configured to support a second wireless communication link. The internal communication link is configured to transfer data packets between the first and second radio assemblies.
    Type: Grant
    Filed: May 27, 2021
    Date of Patent: April 16, 2024
    Assignee: Cable Television Laboratories, Inc.
    Inventors: John C. Bahr, David Daniel Smith
  • Patent number: 11956351
    Abstract: A first node of a network includes a quantum receiver, a classical transceiver, and an initial-key generator that cooperate with a second node of the network to receive an initial key via the quantum receiver. The first node includes a key-series generator that (i) decrypts, with the initial key, a first encrypted key of a series of encrypted keys to generate a first unencrypted key of a respective series of unencrypted keys and (ii) decrypts each subsequent encrypted key of the series of encrypted keys with a preceding unencrypted key of the series of unencrypted keys to generate a subsequent unencrypted key of the series of unencrypted keys. The first node includes one or both of a decryptor and an encryptor. The decryptor decrypts encrypted data using a last unencrypted key of the series of unencrypted keys. The encryptor encrypts unencrypted data using the last unencrypted key.
    Type: Grant
    Filed: March 27, 2023
    Date of Patent: April 9, 2024
    Assignee: CABLE TELEVISION LABORATORIES, INC.
    Inventors: Jing Wang, Bernardo Huberman, Luis Alberto Campos, Zhensheng Jia
  • Patent number: 11956354
    Abstract: A system for enhanced internet of things digital certificate security is provided. The system includes a computer device. The computer device is programmed to store, in a database, a plurality of statuses associated with a plurality of digital certificates. The computer device is also programmed to receive, from a first computer device, a status update for the first digital certificate. The computer device is further programmed to update the first status based on the status update. Subsequently to updating the first status, the computer device is programmed to receive a request for a connection from the first device. Subsequently to updating the first status, the computer device is also programmed to deny the request for a connection based on the first status.
    Type: Grant
    Filed: March 28, 2022
    Date of Patent: April 9, 2024
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Massimiliano Pala, Ronald H. Ih
  • Patent number: 11947403
    Abstract: A method for operating a termination device of an access communication network includes (a) performing, at the termination device, a first start-up procedure, (b) after performing the first start-up procedure, detecting, at the termination device, presence of a communication signal meeting one or more predetermined criteria, and (c) in response to detecting presence of the communication signal meeting the one or more predetermined criteria, performing, at the termination device, a second start-up procedure that is different from the first start-up procedure.
    Type: Grant
    Filed: July 12, 2022
    Date of Patent: April 2, 2024
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Jason W. Rupe, Douglas D. Jones, Stephen L. Burroughs
  • Patent number: 11949497
    Abstract: An optical network communication system utilizes a passive optical network including an optical hub having an optical line terminal, downstream transmitter, an upstream receiver, a processor, and a multiplexer. The upstream receiver includes a plurality of TWDMA upstream subreceivers. The system includes a power splitter for dividing a coherent optical signal from the optical hub into a plurality of downstream wavelength signals, a long fiber to carry the coherent optical signal between the optical hub and the power splitter, and a plurality of serving groups. Each serving group includes a plurality of optical network units configured to (i) receive at least one downstream wavelength signal, and (ii) transmit at least one upstream wavelength signal. The system includes a plurality of short fibers to carry the downstream and upstream wavelength signals between the power splitter and the optical network units, respectively. Each upstream subreceiver receives a respective upstream wavelength signal.
    Type: Grant
    Filed: June 13, 2022
    Date of Patent: April 2, 2024
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Zhensheng Jia, Luis Alberto Campos, Curtis Dean Knittle
  • Patent number: 11949783
    Abstract: Methods, systems, and devices for quantum key distribution (QKD) in passive optical networks (PONs) are described. A PON may be a point-to-multipoint system and may include a central node in communication with multiple remote nodes. In some cases, each remote node may include a QKD transmitter configured to generate a quantum pulse indicating a quantum key, a synchronization pulse generator configured to generate a timing indication of the quantum pulse, and filter configured to output the quantum pulse and the timing indication to the central node via an optical component (e.g., an optical splitter, a cyclic arrayed waveguide grating (AWG) router). The central node may receive the timing indications and quantum pulses from multiple remote nodes. Thus, the central node and remote nodes may be configured to communicate data encrypted using quantum keys.
    Type: Grant
    Filed: February 13, 2023
    Date of Patent: April 2, 2024
    Assignee: CABLE TELEVISION LABORATORIES, INC.
    Inventors: Jing Wang, Bernardo Huberman
  • Patent number: 11941588
    Abstract: A virtualized blockchain forest includes a plurality of individual blockchains. Each individual blockchain of the plurality includes a blockchain height, a genesis block, and at least one additional block. The virtualized blockchain forest further includes a plurality of participating processors that make up a consensus pool, and a blockchain forest height having a time-sequenced start-to-finish length of blocks among the collective plurality of individual blockchains. The virtualized blockchain forest is configured to aggregate different ones of the plurality of individual blockchains, and is further configured to terminate individual ones of plurality of individual blockchains.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: March 26, 2024
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Steven John Goeringer, Brian Alexander Scriber, Robert Michael Lund
  • Patent number: 11943004
    Abstract: A method for operating a wireline communication device on a wireless communication network includes (a) receiving a downlink radio frequency (RF) electrical signal at a first connector, (b) converting the downlink RF electrical signal to a downlink access signal having a format that is compatible with the wireline communication device, and (c) providing the downlink access signal to a second connector for transporting to the wireline communication device. A method for extending a wireline communication network includes (a) receiving a downlink wireline signal at a node of the wireline communication network, (b) converting the downlink wireline signal to a downlink RF electrical signal, and (c) converting the downlink RF electrical signal to a downlink wireless signal, for transmission to one or more communication devices which are not physically connected to the wireline communication network.
    Type: Grant
    Filed: July 4, 2022
    Date of Patent: March 26, 2024
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Daryl William Malas, George J. Kakatsakis, Belal Hamzeh, Luis Alberto Campos, Eric Winkelman, Mario Di Dio, Luther E. Smith
  • Patent number: 11942783
    Abstract: A system and method for data collection and aggregation using a distributed network of communications enabled sensors connected to another primary network to achieve a secondary out-of-band monitoring perspective, for example, in power grids. The data collection system includes an aggregation and processing server configured to collect data from a variety of sensors adjacent to the monitored network each sensor includes secondary power such that it can continue data transmission even during power grid outages. The data collection system includes a method for secure real-time data ingest, machine learning enabled analysis, risk assessment, and anomaly detection on a broad geographic scale irrespective of isolated network boundaries.
    Type: Grant
    Filed: August 29, 2021
    Date of Patent: March 26, 2024
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Scott L. Caruso, Jason W. Rupe, Robert F. Cruickshank, III, Daniel Stoller, Hunter Albright
  • Patent number: 11943376
    Abstract: A certificate re-provisioning (CREP) protocol allows a client device to communicate with a provisioning server and be automatically provisioned, or re-provisioned, with needed credentials without the client device being aware of which credentials it needs. The CREP protocol uses a slot configuration template that defines which credentials are installed on the client device and the provisioning server responds with actions to provision the client device according to a client target configuration stored at the server.
    Type: Grant
    Filed: November 15, 2021
    Date of Patent: March 26, 2024
    Assignee: CABLE TELEVISION LABORATORIES, INC.
    Inventor: Massimiliano Pala
  • Patent number: 11936780
    Abstract: A transaction discovery protocol determines when a value r is less than a value a without learning the value of r or a. The protocol (1) receives, at a first computer via a secure communication channel, value ax, where x is a secret key unknown to the first computer; (2) generates vector B where a first entry is the value r, and subsequent entries are equal to the previous entry plus a predefined resolution; (3) generates vector By from the vector B using secret key y, unknown to a second computer, and sends vector By to the second computer; (4) receives vector Byx from the second computer and generates value axy; and (5) completes an agreement between the first computer and the second computer when the value axy is equal to one of the entries in the vector Byx, indicating that the value r is less than the value a.
    Type: Grant
    Filed: June 11, 2021
    Date of Patent: March 19, 2024
    Assignee: CABLE TELEVISION LABORATORIES, INC.
    Inventor: Bernardo Huberman
  • Patent number: 11937094
    Abstract: Systems and methods provide for use of spectrum emission masks to allow for two or more devices to coexist on a common communication bandwidth. The spectrum emission masks may include one, two, or three interior attenuation regions that, when implemented by a transmitting device, significantly reduce the transmission power in the interior attenuation regions. The interior attenuation regions may transmit to interior channels that separate one, two, or three outer channels of a plurality of channels spanning the common communication bandwidth.
    Type: Grant
    Filed: August 22, 2022
    Date of Patent: March 19, 2024
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Dorin Gheorghe Viorel, Ruoyu Sun, Lili Hervieu
  • Patent number: 11937167
    Abstract: Systems, methods, and devices disclosed herein contemplate client updates to traffic filter tables that control delivery of network traffic from an access point to the client over a multi channel wireless network. The client may update the traffic filter table whenever: (i) an application on the client initiates the request; (ii) an application matching a secondary channel requirement in a look-up table is opened or closed; (iii) data characteristics matching the secondary channel requirement in the look-up table are detected or removed; (iv) data usage of the client meets or exceeds a predetermined threshold; (v) data usage of the client falls below a predetermined threshold; and/or (vi) a specified period of time has passed.
    Type: Grant
    Filed: July 2, 2021
    Date of Patent: March 19, 2024
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Luther E. Smith, Jonathan Ray Dennis, Aaron Quinto
  • Patent number: D1021811
    Type: Grant
    Filed: May 26, 2022
    Date of Patent: April 9, 2024
    Assignee: CABLE TELEVISION LABORATORIES, INC.
    Inventors: Luther E. Smith, Aaron Quinto, Derek Matthews