Patents Assigned to Adtran, Inc.
  • Patent number: 10797946
    Abstract: Methods, systems, and apparatus for provisioning a network device are disclosed. In one aspect, a message is received by a translation device from a controller. A determination is made, by the translation device, that the received message includes data that is destined for multiple different downstream network devices. A determination is made that a first downstream network device among the multiple different downstream network devices is incapable of being provisioned using a communications protocol of the received message. Data from the received message, that is destined for the first downstream network device, is translated, by the translation device, from the communications protocol of the received message to a translated message defined in a different protocol that is required to provision the first downstream network device. The translated message is transmitted, by the translation device, to the first downstream network device according to the different protocol.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: October 6, 2020
    Assignee: ADTRAN, Inc.
    Inventors: Walt Steverson, Patrick A. Price, Seethalakshmi Gopalasubramanian
  • Patent number: 10797467
    Abstract: An optical transmission system includes a laser module generating a modulated optical waveform, including both amplitude and frequency modulation, at center frequencies corresponding to different operating temperatures; and an optical shaping filter, with passbands corresponding to the different center frequencies, that converts at least part of the frequency modulation to additional amplitude modulation.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: October 6, 2020
    Assignee: ADTRAN, Inc.
    Inventors: Daniel M. Joffe, Leif Sandstrom
  • Patent number: 10749623
    Abstract: Methods, systems, and apparatus for hosting an optical line terminal (OLT) bonding engine are disclosed. In one aspect, packet data for transmission over a passive optical (PON) is selected. A transmission wavelength assigned to the packet data is identified. A particular OLT is selected from among the additional OLTs to transmit the packet data over the PON based on the corresponding wavelength of the particular OLT matching the identified transmission wavelength assigned to the packet. The packet data is formatted based on the particular OLT. The formatted packet data is transmitted to the particular OLT for transmission over the communications interface.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: August 18, 2020
    Assignee: ADTRAN, Inc.
    Inventors: Thomas Detwiler, Richard Lee Goodson
  • Patent number: 10735386
    Abstract: Methods, systems, and apparatus for Internet Protocol security (IPsec) selector coalescing for per-host Security Associations (SAs) are disclosed. In one aspect, separate per-host SAs are assigned, by a network communications device including one or more processors, to each of two or more different source communication devices that each communicates with corresponding destination devices. While the separate per-host SAs are assigned to each of the two or more different source communication devices, a group SA is generated. The group SA is assigned, by the network communications device, to all of the two or more different source communication devices. The assignment of the separate per-host SAs is removed from each of the two or more different source communication devices.
    Type: Grant
    Filed: February 1, 2018
    Date of Patent: August 4, 2020
    Assignee: ADTRAN, Inc.
    Inventors: Michael Arnold, Tyler Pearson
  • Patent number: 10716017
    Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for telecommunications network troubleshooting. In one aspect, a method includes obtaining multiple current observations characterizing current operation of a telecommunications network, the multiple observations including performance monitoring data for the network and quality of service data for the network. One or more prior network states for the network are obtained. A current state of the network is determined, by a machine learning model, based on the current observations and the one or more prior network states. One or more actions are performed based on the current state of the network, including, when the current state of the network is an abnormal state, taking an action that is mapped to the abnormal state.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: July 14, 2020
    Assignee: ADTRAN, Inc.
    Inventors: Jeremy Lyon, Michael Arnold, Ramya Raghavendra
  • Patent number: 10715890
    Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for optimizing PON efficiency using a variable FEC. In one aspect, an OLT broadcasts a message over an optical network, and receives, from an ONU, a response to the message. The OLT transmits activation parameters specifying that the OLT supports multiple different FEC code lengths when FEC is activated, and receives from the ONU, a set of FEC code lengths supported by the ONU. The OLT also receives performance measures collected by the ONU. The OLT selects, from among the FEC code lengths supported by the ONU, one or more appropriate FEC code lengths for communications between the ONU and the OLT based on the performance measures collected by the ONU and performance measures collected by the OLT. The OLT configures the ONU to utilize the appropriate FEC code length.
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: July 14, 2020
    Assignee: ADTRAN, Inc.
    Inventors: Thomas Detwiler, Richard Lee Goodson
  • Patent number: 10686492
    Abstract: Multiple ports of a vectored digital subscriber line (DSL) system can be automatically reconfigured to respond to a fault or defect associated with another one of the ports of the system. Information regarding retrain events for the ports of the system can be examined to identify the “bad” port with the associated fault or defect and the corresponding group of ports affected by the bad port. The affected group of ports can be identified as a group of ports that all were retrained within a predetermined time period and for common retrain reasons (e.g., 1 or 2 different retrain reasons). Once the affected group of ports is identified, the affected group of ports and the bad port can receive corresponding repair profiles to reconfigure the ports to respond to the fault or defect.
    Type: Grant
    Filed: April 12, 2018
    Date of Patent: June 16, 2020
    Assignee: ADTRAN, Inc.
    Inventors: Arlynn Wayne Wilson, Robert A. Barrett, Nicholl Jamila Jones
  • Patent number: 10658772
    Abstract: A connection system has a high-density, high-speed connector that is electrically connected to a plurality of cables by a tiered circuit board. Edges of the circuit board are offset in order to form steps on which conductive pads may be formed. Each set of pads on a given step may be electrically connected to one or more conductors of a cable, such as a twinax ribbon cable. Thus, each of the cables may be coupled to one or more conductive pads on a respective step of the circuit board such that a large number of conductors may be electrically interfaced with the connector in a relatively small space, unencumbered by the bend radius of the cable. In addition, the cables may be coupled to the circuit board in a manner that does not require significant bending at the ends of the cables helping to preserve signal integrity. That is, conductive paths turn at high angles (e.g., close to 90 degrees) within the circuit board rather than at the ends of the cables connected to the circuit board.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: May 19, 2020
    Assignee: ADTRAN, Inc.
    Inventors: Jared D. Cress, Troy W. White
  • Patent number: 10609825
    Abstract: An electronic system may include a housing and one or more electronic modules. The housing and electronic modules may be configured to allow different numbers and types of electronic modules to be attached to the exterior of the housing.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: March 31, 2020
    Assignee: Adtran, Inc.
    Inventors: Grant J. Kruse, Jon M. Chalmers
  • Patent number: 10608735
    Abstract: A system for performing failover switches in an optical network, such as a time and wavelength division passive optical networks (TWDM PON) like NG-PON2, includes a backup optical line terminal (OLT) for backing up communications of a primary OLT. The backup OLT is configured to allocate small upstream time slots, referred to herein as “de minimis” time slots, to at least one optical network terminal (ONT) communicating with the primary OLT during normal operation. When a failure occurs that prevents communication between the ONT and the primary OLT, the ONT autonomously tunes to the upstream and downstream wavelength pairs of the backup OLT and begins to transmit data to the backup OLT in the de minimis time slot allocated to it. The presence of data in the de minimis time slot indicates the occurrence of a failover switch to the backup OLT, and the backup OLT then begins to allocate time slots to this ONT, which is normally serviced by the primary OLT according to its normal TDM algorithm.
    Type: Grant
    Filed: May 4, 2017
    Date of Patent: March 31, 2020
    Assignee: ADTRAN, Inc.
    Inventors: Jared D. Cress, Charles E. Polk, Jr., Nagaraj Padur
  • Patent number: 10608940
    Abstract: A telecommunication system uses a dynamic bandwidth allocation (DBA) algorithm based on current load conditions for controlling transmissions to a plurality of access modules of an access node in order to achieve a fair allocation of network bandwidth at the access node. As an example, access modules at an access node communicate via a control channel with dynamic bandwidth allocation (DBA) logic that receives load information from each of the access modules. Using such load information, the DBA logic dynamically controls the upstream data rates so that a fair allocation of network bandwidth is achieved across all of the access modules. Specifically, the data rates are controlled such that packet flows for services of the same class achieve the same or similar performance (e.g., average data rate) regardless of which access module is receiving each respective packet flow.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: March 31, 2020
    Assignee: ADTRAN, Inc.
    Inventors: Richard Goodson, Ramya Raghavendra, Kenneth D. Ko
  • Patent number: 10601771
    Abstract: Methods, systems, and apparatus for configuring a network device are disclosed. In one aspect, a network address that is assigned to the network device by a network address server is detected by an equipment configuration device. The network address server differs from the network device. In response to detecting the network address, a set of connection parameters that connect the network device to a controller device is transmitted by the equipment configuration device and to the network device. The set of connection parameters is transmitted outside of communications, transmitted by the network address server, that assigned the network address to the network device.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: March 24, 2020
    Assignee: ADTRAN, Inc.
    Inventors: Douglas T. Albright, Neil Jensen, Jack Atkinson, Chip Boling
  • Patent number: 10547407
    Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for reducing jitter and latency in a PON. In one aspect, an optical network unit includes a downstream optical receiver configured to receive downstream traffic over a first wavelength; a first upstream optical transmitter having a first data rate; a second upstream optical transmitter having a second data rate that is higher than the first data rate; and a controller configured to direct upstream traffic to one of the first upstream optical transmitter or the second upstream optical transmitter depending on a traffic type of the traffic. Traffic having a control plane traffic type is directed to the first upstream optical transmitter and traffic having a data plane traffic type is directed to the second upstream optical transmitter.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: January 28, 2020
    Assignee: ADTRAN, Inc.
    Inventor: Jared Cress
  • Patent number: 10530527
    Abstract: In a vectored Discrete Multi-Tone (DMT) system that employs trellis encoding, tones of a DMT signal are paired by a trellis encoder, and parity information is shared between the paired tones. In accordance with some embodiments, the tones are paired based on an interpolation pattern that is used to calculate vectoring coefficients in an effort to mitigate interpolation error. Specifically, a tone having a vectoring coefficient with a relatively large interpolation error may be paired with a tone having a vectoring coefficient with a relatively small interpolation error thereby reducing the peak interpolation error among paired tones within the system. By reducing the peak interpolation error in the paired tones, the number of communication lines included in a vectoring group can be increased without significantly degrading signal quality.
    Type: Grant
    Filed: July 20, 2018
    Date of Patent: January 7, 2020
    Assignee: ADTRAN, Inc.
    Inventors: Arlynn Wayne Wilson, Richard L. Goodson
  • Patent number: 10505339
    Abstract: An optical transmission system includes a laser module that generates a modulated optical waveform including both amplitude and frequency modulation; and an optical shaping filter that converts at least part of the frequency modulation to additional amplitude modulation. The optical transmission system is tuned by: measuring, based on the amplitude modulation of a filtered waveform output from the optical shaping filter, an average output power of the optical shaping filter; and adjusting a temperature of the laser module to a first temperature at which a target output condition is achieved, including: adjusting the temperature of the laser module to a first target temperature at which the average output power of the filtered waveform satisfies a first output criteria, or adjusting the temperature of the laser module to a second target temperature at which the output power and extinction ratio of the filtered waveform satisfy a second output criteria.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: December 10, 2019
    Assignee: ADTRAN, Inc.
    Inventors: Daniel M. Joffe, Leif Sandstrom
  • Patent number: 10491169
    Abstract: A driver circuit for a transmitter includes a main path in parallel with an error correction path used for feed-forward error correction. The main path has an amplifier for amplifying a data signal to be transmitted from the transceiver. In parallel with the amplifier is a feedforward error correction circuit that provides an error correction signal that compensates for distortion introduced by the amplifier when the error correction signal is combined with the amplifier's output. The error correction circuit is designed to have a high impedance output so that voltage swings in the data signal do not create a demand for significant current from the feedforward error correction circuit, thereby reducing the current of the error correction signal. As an example, it is possible for the current of the error correction signal to substantially match that which is required to cancel the amplifier distortion, thereby minimizing distortion of the signal.
    Type: Grant
    Filed: April 30, 2017
    Date of Patent: November 26, 2019
    Assignee: ADTRAN, Inc.
    Inventor: Daniel M. Joffe
  • Publication number: 20190280795
    Abstract: A time-division duplexing (TDD) system reduces crosstalk associated with signals communicated by coordinated dynamic time assignment (cDTA) transceivers. In some embodiments, the TDD system has both cDTA transceivers and legacy transceivers. Based on the dynamic allocation of downstream and upstream timeslots for the cDTA transceivers, timeslots for the legacy transceivers are selectively muted in an effort to limit the amount of near-end crosstalk (NEXT) that occurs in the TDD system. Thus, subscriber lines coupled to both cDTA transceivers and legacy transceivers may be bound within the same binder without significantly increasing crosstalk to unacceptable levels.
    Type: Application
    Filed: September 22, 2017
    Publication date: September 12, 2019
    Applicant: ADTRAN, INC.
    Inventor: Martin Kuipers
  • Patent number: 10397674
    Abstract: Methods, systems, and apparatus for Passive Optical Network (PON) wavelength bonding are disclosed. In one aspect, a first frame of data to a first optical network unit (ONU) is transmitted by an optical line terminal (OLT) over a first wavelength. While the first frame of data is being transmitted to the first ONU over the first wavelength, a first portion of a second frame of data to a second ONU is transmitted by the OLT over a second wavelength. After transmission of the first frame of data over the first wavelength has completed and while the first portion of the second frame of data is still being transmitted to the second ONU over the second wavelength, a second portion of the second frame of data to the second ONU is transmitted by the OLT over the first wavelength.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: August 27, 2019
    Assignee: ADTRAN, Inc.
    Inventors: Thomas Detwiler, Richard Lee Goodson
  • Patent number: 10366087
    Abstract: Telecommunications enclosures are described in this document. In one aspect, a telecommunications enclosure includes side panels having seals and an enclosure top connected, independent of a frame, to top ends of the side panels. The enclosure top has an enclosure top outer end that extends between the side panels and includes a seal. An interior panel is connected, independent of a frame, to side panels and has an interior panel outer end that extends between the side panels. The interior panel is separated from the enclosure top by a first distance and separated by a second distance from bottom ends of the side panels. A removable door is formed to engage the seals when the removable door is secured to the frameless telecommunications enclosure.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: July 30, 2019
    Assignee: ADTRAN, Inc.
    Inventors: Jeremy Lee Harris, Paul S. Wein, Jr., Jon Michael Chalmers
  • Patent number: 10326683
    Abstract: Methods, systems, and apparatus for generating a delay profile for different priority classifications. In one aspect, multiple latency probes are transmitted by a source node to a target network node. Each latency probe has a different priority code. A response to each of the transmitted latency probes is received by the source node from the target network node. Based on the received responses, a delay profile for the target network node is generated by the source node. The delay profile provides multiple network latency measurements for packets transmitted to the target network node with the different priority codes. A user interface of a display is updated to visually present at least a portion of the delay profile.
    Type: Grant
    Filed: May 2, 2017
    Date of Patent: June 18, 2019
    Assignee: ADTRAN, Inc.
    Inventors: Brad Tidwell, Sean M. Osborne