ADTRAN, INC. Patent applications |
Patent application number | Title | Published |
20150351268 | FRAMELESS TELECOMMUNICATIONS ENCLOSURE - 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. | 12-03-2015 |
20150334632 | DETECTING AND DISABLING ROGUE ACCESS POINTS IN A NETWORK - A rogue access point in a wireless local-area network can be disabled by an authorized access point wirelessly transmitting a layer-2 broadcast packet. If a rogue access point receives this broadcast packet, it will forward a copy to the switch to which it is connected. The switch then determines whether the port on which the copy of the broadcast packet is received is associated an authorized access point port. If the switch determines the port is not an authorized access point port, the switch shuts down the port. | 11-19-2015 |
20150326939 | DIAGNOSING AND OPTIMIZING NETWORK-WIDE IPTV CONFIGURATIONS - Methods, systems, and apparatus for diagnosing and optimizing an Internet Protocol television (IPTV) network are disclosed. In one aspect a method includes receiving a network address of a device; detecting a network topology associated with the device based on the network address of the device; identifying a configuration parameter setting associated with the network topology that is outside of a range of acceptable configuration parameter settings for the network topology; and providing output specifying the configuration parameter setting that is outside of the range of acceptable configuration parameter settings. | 11-12-2015 |
20150318875 | Data Processing in a Digital Subscriber Line Environment - A device is suggested comprising a first DSL system operating in a first frequency band, a second DSL system operating in a second frequency band and a filter unit connected to a line and to each of the first DSL system and the second DSL system. | 11-05-2015 |
20150280428 | GAS TUBE IMPULSE PROTECTION - Methods, systems, and apparatus for protecting electrical components are disclosed. In one aspect a system includes a first gas discharge tube connected to a first conductor of a first twisted wire pair; and a second gas discharge tube connected to a second conductor of the first twisted wire pair. The first gas discharge tube can also be connected to a third conductor of a second twisted wire pair, and the second gas discharge tube can be connected to a fourth conductor of the second twisted wire pair. | 10-01-2015 |
20150222363 | COMMUNICATION MODULE HAVING A ROTATABLE CONNECTOR ASSEMBLY FOR MULTIPLE CONNECTION ORIENTATIONS - An optical communication module include a housing having a circuit element configured to provide an optical communication function, and a rotatable connector assembly coupled to the housing, the rotatable connector assembly configured to rotate between a first position and a second position, wherein when in the first position, the rotatable connector assembly allows the communication module to interface with a first form factor card cage and when in the second position, the rotatable connector assembly allows the communication module to interface with a second form factor card cage. | 08-06-2015 |
20140016938 | TEMPERATURE ADJUSTABLE CHANNEL TRANSMITTER SYSTEM INCLUDING AN INJECTION-LOCKED FABRY-PEROT LASER - A tunable channel transmitter system for a wavelength division multiplexed (WDM) passive optical network (PON) includes a WDM communication system having a plurality of WDM channel bandwidths, an injection-locked Fabry-Perot laser having a plurality of resonant modes, a seed light source to provide seed light to the injection-locked Fabry-Perot laser, and a temperature control element configured to shift the plurality of resonant modes of the injection-locked Fabry-Perot laser to ensure that only one resonant mode of the injection-locked Fabry-Perot laser is locked to the seed source and transmitting a substantial portion of the laser power through a desired channel of the WDM communications system. | 01-16-2014 |
20130336463 | SYSTEM AND METHOD FOR OPTIMIZING TERMINATION IMPEDANCE FOR AN ANALOG TELEPHONE LINE - A system and method in accordance with a non-limiting aspect minimizes echo return loss in a communications system. The dial tone is broken on an analog telephone line connected to a hybrid circuit having selectable impedance configurations and that interfaces a digital communications circuit and the analog telephone line. A white noise signal as a test call is inserted through the hybrid circuit onto the analog telephone line corresponding to a selected impedance configuration. The returned white noise signal is used for measuring the echo return loss. The test call is dropped. This process is repeated at different impedance configurations to obtain echo return loss measurements at each of the impedance configurations. The optimum impedance setting configuration is determined based on the results and applied to the hybrid circuit and typically set during a running telephone configuration. | 12-19-2013 |
20130295909 | System And Method For Providing Customer Support Using A Location-Aware Portable Device - A portable technical support device includes a location-determining element configured to allow the portable technical support device to be location-aware, and a communicating element configured to allow the portable technical support device to access a network management system, the network management system having information relating to a communication device, wherein the portable technical support device obtains from the management system the information relating to the communication device by making the network management system aware of the location of the communication device using the portable technical support device as a location-determining element. | 11-07-2013 |
20130182723 | COMMUNICATIONS SYSTEM AND RELATED METHOD FOR REDUCING CONTINUITY CHECK MESSAGE (CCM) BURSTS IN CONNECTIVITY FAULT MANAGEMENT (CFM) MAINTENANCE ASSOCIATION (MA) - In accordance with a non-limiting example, a system and method minimizes collisions between transmitted connectivity fault management (CFM) packets. Maintenance association endpoints are formed from a plurality of network switch elements to form a maintenance association. The clocks between each network switch element within the maintenance association are synchronized. A unique transmission window is assigned to each maintenance association endpoint as part of the maintenance association. A respective CFM packet is transmitted as a continuity check message (CCM) within the unique transmission window. | 07-18-2013 |
20120224573 | BONDING ENGINE CONFIGURED TO PREVENT DATA PACKET FEEDBACK DURING A LOOPBACK CONDITION - A system and method transmits data and receives data packets within a bonding engine. The data packets are fragmented into a plurality of packet fragments for communication across a bonded group of subscriber lines. A Frame Check Sequence (FCS) in the data packet is inverted on one direction of the bonding group to prevent any data packets from propagating towards the network during a loopback condition. | 09-06-2012 |
20120093002 | COMMUNICATIONS SYSTEM AND RELATED METHOD FOR REDUCING CONTINUITY CHECK MESSAGE (CCM) BURSTS IN CONNECTIVITY FAULT MANAGEMENT (CFM) MAINTENANCE ASSOCIATION (MA) - In accordance with a non-limiting example, a system and method minimizes collisions between transmitted connectivity fault management (CFM) packets. Maintenance association endpoints are formed from a plurality of network switch elements to form a maintenance association. The clocks between each network switch element within the maintenance association are synchronized. A unique transmission window is assigned to each maintenance association endpoint as part of the maintenance association. A respective CFM packet is transmitted as a continuity check message (CCM) within the unique transmission window. | 04-19-2012 |
20100124176 | AUTOMATIC NETWORK TOPOLOGY IDENTIFICATION BY NODES IN THE NETWORK - An automatic network topology identification technique is described herein. Each node in the network periodically or constantly transmits its unique address to its neighboring node. Once a node receives a different message from its neighbor, the node identifies a topology change in the network. In one embodiment, a current topology is associated with a session number. When a change in the topology is detected, the detecting node increments the session number and broadcasts the change in topology. The other nodes, detecting the changed session number, now know that there has been a change in the network. In response, the nodes in the network modify routing tables and other information stored at the node related to the topology. In one embodiment, the technique is used to reassign shortened addresses to each device on the network to support a dual-addressing mode of the network. The dual addressing mode substitutes reduced-length addresses (referred to as short addresses) for standard addresses (referred to as long addresses) for traffic whose source or destination is internal to a given virtual network topology. The required length of short addresses used for a given virtual topology is dependent on the number of devices reachable within the topology. | 05-20-2010 |
20100085098 | DIGITAL DELAY LINE DRIVER - Improved digital delay line driver is described. A delay line driver circuit includes elements to drive the delay line in one or multiple locations to provide a dynamic, adjustable slew rate on the output signal. The delay line driver circuit may also include active elements coupled to the transistors of the delay line to deactivate the delay line transistors substantially simultaneously, rather than cascading in series. Shutting off the delay line transistors substantially simultaneously reduces or eliminates crowbar or shoot through current on an edge transition of the output signal. | 04-08-2010 |
20090141656 | BANDWIDTH RESERVATION REUSE IN DYNAMICALLY ALLOCATED RING PROTECTION AND RESTORATION TECHNIQUE - The disclosed network includes two rings, wherein a first ring transmits data in a clockwise direction, and the other ring transmits data in a counterclockwise direction. The traffic is removed from the ring by the destination node. During normal operations (i.e., all spans operational), data between nodes can flow on either ring. Thus, both rings are fully utilized during normal operations. The nodes periodically test the bit error rate of the links (or the error rate is constantly calculated) to detect a fault in one of the links. The detection of such a fault sends a broadcast signal to all nodes to reconfigure a routing table within the node so as to identify the optimum routing of source traffic to the destination node after the fault. | 06-04-2009 |
20090141621 | BANDWIDTH RESERVATION REUSE IN DYNAMICALLY ALLOCATED RING PROTECTION AND RESTORATION TECHNIQUE - The disclosed network includes two rings, wherein a first ring transmits data in a clockwise direction, and the other ring transmits data in a counterclockwise direction. The traffic is removed from the ring by the destination node. During normal operations (i.e., all spans operational), data between nodes can flow on either ring. Thus, both rings are fully utilized during normal operations. The nodes periodically test the bit error rate of the links (or the error rate is constantly calculated) to detect a fault in one of the links. The detection of such a fault sends a broadcast signal to all nodes to reconfigure a routing table within the node so as to identify the optimum routing of source traffic to the destination node after the fault. | 06-04-2009 |
20090074413 | SYSTEM AND METHOD FOR PROVIDING TRANSPARENT LAN SERVICES - A system and method provide transparent LAN services in a metro-WAN environment to extend enterprise LANs over metro and wide area networks. The transparent LAN services generally provide customers with a layer two Ethernet connectivity with MAC learning capabilities. | 03-19-2009 |