Patents Assigned to Cable Television Laboratories, Inc.
  • Patent number: 11778523
    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: May 16, 2022
    Date of Patent: October 3, 2023
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Joseph Padden, Jennifer Andreoli-Fang
  • Patent number: 11770380
    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: September 12, 2022
    Date of Patent: September 26, 2023
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Steven J. Goeringer, Darshak Thakore
  • Patent number: 11770321
    Abstract: Methods, systems, and devices for wireless communications are described. A user may select a cable modem (CM) at a graphical user interface (GUI) of a network device for testing. The network device may receive the indication of a selected query from GUI and transmit the selected query to the CM. The network device may receive a response message from the CM and compare the response message to an expected response message. The network device may generate a report indicating a status of the CM based on the comparing. The status of the CM may relate to a compliance of the CM to a standard. Additionally or alternatively, the status of the CM may indicate a performance level of the CM.
    Type: Grant
    Filed: October 4, 2021
    Date of Patent: September 26, 2023
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Jason W. Rupe, Curtis D. Knittle, Jingjie Zhu, John Phillips
  • Patent number: 11770204
    Abstract: A coherent passive optical network includes a downstream transceiver and first and second upstream transceivers in communication with an optical transport medium. The downstream transceiver includes a downstream processor for mapping a downstream data stream to a plurality of sub-bands, and a downstream transmitter for transmitting a downstream optical signal modulated with the plurality of sub-bands. The first upstream transceiver includes a first local oscillator (LO) for tuning a first LO center frequency to a first sub-band of the plurality of sub-bands, and a first downstream receiver for coherently detecting the downstream optical signal within the first sub-band. The second upstream transceiver includes a second downstream receiver configured for coherently detecting the downstream optical signal within a second sub-band of the plurality of sub-bands. The downstream processor dynamically allocates the first and second sub-bands to the first and second transceivers in the time and frequency domains.
    Type: Grant
    Filed: February 28, 2022
    Date of Patent: September 26, 2023
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Junwen Zhang, Zhensheng Jia, Mu Xu, Haipeng Zhang, Luis Alberto Campos
  • Patent number: 11757556
    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: May 26, 2022
    Date of Patent: September 12, 2023
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Mu Xu, Zhensheng Jia, Haipeng Zhang, Luis Alberto Campos
  • Patent number: 11757774
    Abstract: Systems and methods implement multi-channel communication by remapping Ethernet frames. An Ethernet frame is captured leaving a first bridge of an Ethernet switch. A destination address of the Ethernet frame is matched to a remap rule and to a filter defined for the remap rule. The destination address of the Ethernet frame is updated based upon the remap rule, and the Ethernet frame is output to an Ethernet port corresponding to the updated destination address of the Ethernet frame. The remap rule and the filter allow the Ethernet switch to route traffic at an OSI model layer-4 level.
    Type: Grant
    Filed: April 28, 2022
    Date of Patent: September 12, 2023
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Luther E. Smith, Jonathan Ray Dennis, Aaron Quinto
  • Patent number: 11757864
    Abstract: Authenticating devices utilizing Transport Layer Security (TLS) protocol to facilitate exchange of authentication information or other data to permit or otherwise enable access to services requiring authentication credentials, certificates, tokens or other information. The authentication may utilize Digital Transmission Content Protection (DTCP) certificates, Diffie-Hellman (DH) parameters or other information available to the authenticating devices, optionally without requiring device requesting authentication to obtain an X.509 certificate.
    Type: Grant
    Filed: February 2, 2021
    Date of Patent: September 12, 2023
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Darshak Thakore, Stuart Hoggan, Dave Belt, Amol Bhagwat
  • Patent number: 11750356
    Abstract: An optical network includes a transmitter portion configured to transmit a digitized stream of symbols over a digital optical link, a mapping unit disposed within the transmitter portion and configured to code the transmitted digitized stream of symbols with a mapping code prior to transmission over the digital optical link, a receiver portion configured to recover the coded stream of symbols from the digital optical link, and a demapping unit disposed within the receiver portion and configured to map the recovered coded stream of symbols into an uncoded digitized signal corresponding to the digitized stream of symbols at the transmitter portion prior to coding by the mapping unit.
    Type: Grant
    Filed: June 13, 2022
    Date of Patent: September 5, 2023
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Zhensheng Jia, Luis Alberto Campos, Curtis Dean Knittle, Jing Wang
  • Patent number: 11750357
    Abstract: Coherent phase recovery method includes producing, with a transmit-side frequency-comb source, a first frequency-comb signal that includes a pilot tone and a first optical tone having a first center wavelength that differs from a pilot center wavelength of the pilot tone. The method also includes coherently modulating the first optical tone to yield a first modulated signal; and generating a second frequency-comb signal with a receive-side frequency-comb source driven by the pilot tone. The method also includes extracting, from the second frequency-comb signal, a first local-oscillator tone having the first center wavelength; and demodulating the first modulated signal by homodyning the first modulated signal with the first local-oscillator tone.
    Type: Grant
    Filed: April 7, 2021
    Date of Patent: September 5, 2023
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Haipeng Zhang, Luis Alberto Campos, Junwen Zhang, Mu Xu, Zhensheng Jia
  • Patent number: 11750318
    Abstract: An edge wavelength-switching system includes an optical switch and a wavelength selective switch. The optical switch includes a west hub-side port, an east hub-side port, a west local-side port, and an east local-side port. The wavelength selective switch includes (i) a multiplexed port optically coupled to the west local-side port and (ii) a bypass port optically coupled to the east local-side port, and (iii) a plurality of demultiplexed ports. An optical network includes a network hub including an M-by-N1 wavelength-selective switch, N1>M?1, a first network node, and a second network node. Each of the first and second network nodes includes a respective edge wavelength-switching system. The network hub, the first network node, and the second network node are optically coupled.
    Type: Grant
    Filed: March 8, 2022
    Date of Patent: September 5, 2023
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Luis Alberto Campos, Jing Wang, Zhensheng Jia, Jim Campanell, Carmela Stuart, Haipeng Zhang
  • Patent number: 11743771
    Abstract: Managing wireless access points and/or other devices providing wireless signaling to multiple clients is contemplated. The wireless access point may be managed according to a load balancing strategy directed towards achieving desired network throughput using forced disassociation of clients based on traffic type or other service related indicators and/or force disassociation of roaming partners based on neighboring access point capabilities.
    Type: Grant
    Filed: November 30, 2020
    Date of Patent: August 29, 2023
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Vikas Sarawat, Bernard McKibben, Neeharika Allanki
  • Patent number: 11743029
    Abstract: A method for registering and provisioning an electronic device is provided. The method includes a step of inserting a first keypair into a secure element of the electronic device. The first keypair includes a public key and a private key. The method further includes a step of requesting, from a server configured to register and provision connected devices, a provisioning of credentials of the electronic device. The method further includes a step of verifying, by the server, the electronic device credentials. The method further includes a step of registering, by the server, the electronic device. The method further includes a step of transmitting, from the server to the electronic device, a device certificate. The method further includes steps of installing the transmitted device certificate within the secure element of the electronic device, and provisioning the electronic device according to the installed device certificate.
    Type: Grant
    Filed: May 20, 2021
    Date of Patent: August 29, 2023
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Massimiliano Pala, Ronald H. Ih
  • Patent number: 11736980
    Abstract: A method for interfacing an information technology device with a gateway includes (1) receiving, at the gateway, first downlink data, and (2) steering the first downlink data from the gateway to a first information technology (IT) device via at least one of a first plurality of parallel data communication links between the first IT device and the gateway, according to a first steering policy.
    Type: Grant
    Filed: August 9, 2021
    Date of Patent: August 22, 2023
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Mario Di Dio, Daryl William Malas, Eric Winkelman, Gregory C. White, Richard D. Terpstra, Steve Higgins
  • Patent number: 11736199
    Abstract: A method for phase compensation in an optical communication network includes (1) modifying a modulated signal according to one or more correction factors to generate a compensated signal, to compensate for phase rotation, (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: June 4, 2021
    Date of Patent: August 22, 2023
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Junwen Zhang, Mu Xu, Haipeng Zhang, Zhensheng Jia, Luis Alberto Campos
  • Patent number: 11728890
    Abstract: A resource allocation method is provided for a non-orthogonal multiple access distribution of access network users communicatively coupled to a single transport medium. The method includes steps of allocating a first frequency and time domain resource to a first user and a second frequency and time domain resource to a second user of the access network users, obtaining channel information regarding a particular communication channel of the access network for which resources are allocated, grouping the first user with the second user based on an overlap of the first frequency and time domain resource with the second frequency and time domain resource, and assigning the first user to a different power allocation resource than the second user within the frequency and time domain overlap.
    Type: Grant
    Filed: July 12, 2022
    Date of Patent: August 15, 2023
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Lin Cheng, Luis Alberto Campos, Jing Wang, Zhensheng Jia
  • Patent number: 11726813
    Abstract: A client access network includes a cluster of servers. The cluster of servers includes a boot node, an administrator node, a computing node, and a storage node. The client access network further includes a plurality of segregated subnetworks. The plurality of segregated subnetworks includes a boot subnetwork, an administration subnetwork, a public subnetwork, and a private subnetwork. The client access network further includes at least one hardware security module, a dedicated subnet in operable communication with the at least one hardware security module and each of the plurality of segregated subnetworks, and a router in operable communication with the at least one hardware security module and each of the cluster of servers. The router is further configured to route traffic among the plurality of segregated subnetworks and the dedicated subnet.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: August 15, 2023
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Steven J. Goeringer, Igor Faynberg, Massimiliano Pala
  • Patent number: 11719735
    Abstract: A system for detecting a failure along a transmission line of a cable plant is provided. The system includes a mobile vehicle configured to travel along a pathway substantially proximate to the cable plant along a span of the transmission line, and a transmitter disposed with the mobile vehicle. The transmitter is configured to emit (i) a test signal capable of ingressing the transmission line at a location of the failure, and (ii) an information signal containing location and velocity data of the mobile vehicle. The test signal is configured to provide phase shift and Doppler frequency information to a receiver operably connected to the transmission line at a location upstream from the location of the failure.
    Type: Grant
    Filed: February 15, 2021
    Date of Patent: August 8, 2023
    Assignee: Cable Television Laboratories, Inc.
    Inventor: Thomas Holtzman Williams
  • Patent number: 11722219
    Abstract: An optical access network includes an optical hub having at least one processor, and a plurality of optical fiber strands. Each optical fiber strand has a first strand end connected to the optical hub. The network further includes a plurality of nodes connected to at least one segment of a first fiber strand of the plurality of optical fiber strands. Each node is sequentially disposed at respective locations along the first fiber strand at different differences from the optical hub, respectively. The network further includes a plurality of end-points. Each end-point includes a receiver. Each respective receiver (i) has a different optical signal-to-noise ratio (OSNR) from the other receivers, (ii) is operably coupled with at least one node of the plurality of nodes, and (iii) is configured to receive the same optical wavelength signal from the first fiber strand as received by the other receivers.
    Type: Grant
    Filed: August 8, 2022
    Date of Patent: August 8, 2023
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Luis Alberto Campos, Zhensheng Jia, Jing Wang
  • Patent number: 11723095
    Abstract: A method for joint wireless transmission includes (a) at a master wireless communication device, generating a first coordination signal for coordinating joint transmission of a wireless communication signal by at least the master wireless communication device and a first slave wireless communication device, (b) transmitting the first coordination signal from the master wireless communication device to the first slave wireless communication device, and (c) transmitting a first portion of the wireless communication signal from the master wireless communication device to a wireless base station that is remote from each of the master wireless communication device and the first slave wireless communication device.
    Type: Grant
    Filed: July 5, 2021
    Date of Patent: August 8, 2023
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Joseph Padden, Mark J. Poletti
  • Patent number: 11722340
    Abstract: A method for comparing communication links in a communication network includes (a) obtaining first raw equalizer coefficients in a frequency domain, the first raw equalizer coefficients corresponding to a first communication link, (b) obtaining second raw equalizer coefficients in the frequency domain, the second raw equalizer coefficients corresponding to a second communication link, (c) removing time delay from the first raw equalizer coefficients to generate first corrected equalizer coefficients, (d) removing time delay from the second raw equalizer coefficients to generate second corrected equalizer coefficients, and (e) comparing the first corrected equalizer coefficients to the second corrected equalizer coefficients to determine a relationship between the first and second communication links.
    Type: Grant
    Filed: January 9, 2023
    Date of Patent: August 8, 2023
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Thomas Holtzman Williams, Luis Alberto Campos, Lin Cheng