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| Number | Title | Issue Date |
| 7412052 | System and method of delivering DSL services A system and method for delivering digital subscriber line (DSL) service to a subscriber from a remote terminal of a telephone network. Included is a first route for delivering a telephone signal to the subscriber, and a second route for passing the telephone signal... | 08/12/2008 |
| 7340039 | Method for providing digital loop carrier data for use in a central office The present invention provides a digital loop carrier (“DLC”) information system that provides information for use in a central office. The DLC information system includes four related databases. A DLC system database provides information about DLC systems, a mu... | 03/04/2008 |
| 7333593 | Digital loop carrier module for proactive maintenance application Methods and systems for proactively maintaining Digital Loop Carriers and a telephone system local loop. One embodiment for proactively maintaining a Digital Loop Carrier in a telephone system local loop includes communicating with a communications network and acqui... | 02/19/2008 |
| 7302379 | DSL system estimation and parameter recommendation Estimates of a communication system configuration, such as a DSL system, are based on operational data collected from a network element management system, protocol, users and/or the like. The operational data collected from the system can include performance-charact... | 11/27/2007 |
| 7302047 | Method of detecting remote ground condition Whether or not protection circuitry for a span-powered remote digital subscriber loop unit is properly connected to earth ground is determined by the deliberate assertion and detection of a ground fault from a central office line card location. The span-powered remo... | 11/27/2007 |
| 7289604 | System and method for subscriber loop testing A method for testing subscriber loop conditions includes receiving test signal data from a test signal provider, receiving a request for transmitting a test signal described by the test signal data, and transmitting the test signal over a communication channel. The ... | 10/30/2007 |
| 7266154 | Digital subscriber line induction neutralizing transformer network A digital subscriber line (DSL) induction-neutralizing transformer (INT) (28) for use in a DSL INT network (10) is provided. The DSL INT (28) includes a core (72) and a coil (74) that is electrically coupled to and wound around the... | 09/04/2007 |
| 7245701 | System and method for verifying central office wiring associated with line sharing A system and method for verifying the integrity of a DSL circuit on a shared telephone line. The invention uses the amplitude modulation principles to overcome the difficulty associated with a blocking capacitor that isolates a DSLAM on the DSL circuit from the rest... | 07/17/2007 |
| 7242761 | System and method for determining the transmit power of a communication device operating on digital subscriber lines A system for determining the transmit power of a communication device operating on a twisted pair subscriber line includes a communication server coupled to a first subscriber line and a second subscriber line. The communication server comprises a communication devi... | 07/10/2007 |
| 7227933 | System and method for remote management of a DSL device Remote access and configuration of a digital subscriber line (DSL) device using a telephone line. From a remote location, an operator can access the DSL device and receive data, including an operational parameter regarding the device, and upload an operational param... | 06/05/2007 |
| 7224787 | Methods and systems for performing special service maintenance and installation operations in a telecommunications system Methods and systems are provided for processing data in association with an operation performed by a technician at a customer service location in a telecommunications system. In one embodiment, the method includes transmitting data related to at least one piece of e... | 05/29/2007 |
| 7224672 | XDSL modem A reception result of an analog signal transmitted from a local switch to a subscriber line, or a voltage difference corresponding to a line current is analyzed, and a transmission characteristic in the subscriber line is evaluated based on an analyzing result. The ... | 05/29/2007 |
| 7212496 | Remote test unit A remote test unit (RTU) and method of operation are provided for utilizes the ability of an access matrix ability to route signals. The RTU can emulate a central Digital Subscriber Line Modem (DSLM-C) for testing customer premises equipment containing a remote Digi... | 05/01/2007 |
| 7155004 | System and method of delivering DSL services A system and method for delivering digital subscriber line (DSL) service to a subscriber from a remote terminal of a telephone network. Included is a first route for delivering a telephone signal to the subscriber, and a second route for passing the telephone signal... | 12/26/2006 |
| 7133497 | Use of lower bandwidth technology to determine channel capability for supporting higher bandwidth technology Lower bandwidth technology is used to determine whether a communication channel can support higher bandwidth technology. A signal generator generates a series of test signals that are associated with the higher bandwidth technology. The test signals are sampled to p... | 11/07/2006 |
| 7126984 | Near-end crosstalk noise minimization and power reduction for digital subscriber loops To optimize the performance of DSL modems in the same cable bundle, the size and position of the bandwidth used for transmission is intelligently selected when the bit rate necessary for making the transmission is less than the total available bandwidth. By intellig... | 10/24/2006 |
| 7123671 | Automatic gain control method for digital subscriber line modems The present invention provides automatic gain control (AGC) for a wide variety of conditions encountered in DSL scenarios. In particular, the proposed AGC approach addresses the problem of analog front end saturation in which a plurality of gain stages (i.e., progra... | 10/17/2006 |
| 7113491 | Method and system for varying an echo canceller filter length based on data rate The present invention provides methods and systems for providing efficient use of available CPU cycles that may be achieved by reducing the length of the echo canceller filter. An echo canceller's adaptive algorithm may be implemented to reach a lower mean squared e... | 09/26/2006 |
| 7106834 | Digital subscriber line diagnostic system A communication device transmits very low frequency signals in order to help diagnose the cause of a communication problem in a DSL communication system. The communication problem may be, for example, the inability of a remote data transceiver unit (DTU-R) to succes... | 09/12/2006 |
| 7103637 | Network file sharing method and system A method for writing file data from client to server which comprises writing file data from a client to a server, wherein the client issues to the server a file transfer proposal that includes the names of a plurality of files to be transferred and attributes of eac... | 09/05/2006 |
| 7088733 | Cable modem termination system for upstream frequency band The selection of which channel to use by a cable modem terminating system (CMTS) is made a function of input supplied by a spectrum analyzer. Note that typically the cable distribution system has coupled to it at the head end not only the CMTS but also a spectrum an... | 08/08/2006 |
| 7089171 | Method for characterizing the accuracy of a simulated electrical circuit model Methods are disclosed for quantitatively characterizing the accuracy of a simulated electrical circuit model. In particular, available circuit simulation programs make use of “black box” models of transmission lines used to carry high-speed electrical signals. E... | 08/08/2006 |
| 7079626 | System and method for imputing data into a database A system and method for imputing data into a database includes an imputing system operable to impute data based on outside plant construction principles. The imputing system includes an inventory database, a data engine, a search engine, and a loop engine. The inven... | 07/18/2006 |
| 7076378 | Device and method for providing power line characteristics and diagnostics An apparatus determines a characteristic of a portion of a power line. The apparatus comprises a coupling device in communication with a processor. The coupling device receives a signal from a power line and the processor receives the signal from the coupling device... | 07/11/2006 |
| 7076030 | Method and system for testing XDSL wiring In an XDSL system, a network interface device can connect between a central office and a customer premises. The network interface device can monitor for an indication to enter a test mode. In the test mode, the network interface device can provide a test signal to t... | 07/11/2006 |
| 7071700 | Characterizing analog and digital telephone circuits and other types of wiring systems using frequency domain reflectometry (FDR) The structural and termination characteristics of a telephone or other wiring circuit can be determined by generating a continuous stream of low-energy electrical signals, injecting these into the circuit under test, and analyzing the energy reflected at impedance c... | 07/04/2006 |
| 7058162 | Apparatus for testing an asymmetric digital subscriber line This apparatus for testing an asymmetric digital subscriber line includes, arranged in a case, a low-frequency signal generator which generator is adapted to be connected to an input terminal block of an access multiplexer of a telephone exchange and which generator... | 06/06/2006 |
| 7050547 | Digital loop carrier module for proactive maintenance application Methods and systems for proactively maintaining Digital Loop Carriers and a telephone system local loop. One embodiment for proactively maintaining a Digital Loop Carrier in a telephone system local loop includes communicating with a communications network and acqui... | 05/23/2006 |
| 7042382 | Method of time synchronization of multiple A/D sample data records Multiple analog inputs are converted to respective multiple digital data records by analog to digital converters. A switch inserts a pseudorandom “alignment” code into each analog input at the beginning of conversion. After the analog to digital conversion, this... | 05/09/2006 |
| 7035400 | Signaling Techniques in channels with asymmetric powers and capacities An improved system and method for communicating information on a transmission medium is disclosed. The disclosed system and method provide improved communications on the transmission medium in the presence of interference, which may take the form of uncorrelated int... | 04/25/2006 |
| 7027405 | System and method for broadband analysis of telephone local loop A method and system analyzes a telephone local loop and includes a central office operatively connected to the telephone local loop. A bandwidth analysis system is operatively connected to the central office and operative for determining the physical loop faults wit... | 04/11/2006 |
| 7023963 | DSL line card echo canceler-based mechanism for locating telecommunication line fault A digital subscriber loop line card-installed mechanism conducts parametric measurements on the wireline to which the line card is connected, and adjusts taps of an echo cancellation operator in accordance with the response of the wireline to an electrical stimulus ... | 04/04/2006 |
| 7006445 | Device and method for determining characteristics of a digital subscriber line A method for determining the suitability of a copper line, used for transmitting voice band signals and having one or more user devices coupled thereto for transmitting signals on the copper line, for use in transmitting data signals out-of-band with the voice band ... | 02/28/2006 |
| 6999561 | Method of detecting remote ground condition Whether or not protection circuitry for a span-powered remote digital subscriber loop unit is properly connected to earth ground is determined by the deliberate assertion and detection of a ground fault from a central office line card location. The span-powered remo... | 02/14/2006 |
| 6987838 | System and method for deploying new equipment and services in conjunction with a legacy provisioning system In one embodiment, a new device or service can be treated as an abstraction, allowing a model to be created which mimics operation of the device or service, but which does not physically exist. A communication system may then take physical assets that are distribute... | 01/17/2006 |
| 6970797 | Method and product for processing system test data A method for processing system test data is provided. The data is received in digital format in response to a system test and parsed to extract information relating to a system test site and a system component at the test site in need of maintenance. The parsed data... | 11/29/2005 |
| 6959037 | System and method for locating and determining discontinuities and estimating loop loss in a communications medium using frequency domain correlation A system for determining characteristics associated with a communication channel includes a transmitter for transmitting a first signal via the communication channel. The system includes a receiver for receiving a second signal via the communication channel in respo... | 10/25/2005 |
| 6944132 | Transmission apparatus, order wire transmission system and order wire monitoring method An order wire monitoring method monitors form a monitoring control terminal a quality of an order wire line which couples transmission apparatuses via multiplexed lines which multiplex and transmit main and order wire signals. A transmission apparatus which is to tr... | 09/13/2005 |
| 6934655 | Method and apparatus for transmission line analysis A method and system for performing sequence time domain reflectometry to determine the location of line anomalies in a communication channel is disclosed. In one embodiment, the system generates a sequence signal and transmits the sequence signal over a channel that... | 08/23/2005 |
| 6934894 | Control apparatus for controlling recovery of terminal-station apparatus from abnormality A control apparatus for controlling a recovery of a terminal-station apparatus includes a communication-state-monitoring unit for detecting an abnormality appearing at each second going-up transmission channel unit. ... | 08/23/2005 |
