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| Number | Title | Issue Date |
| 8130911 | Characteristics determination of a digital subscriber line A system, method, and transceiver unit for determining one or more properties of a digital subscriber line (DSL) utilizing a time-variable finite impulse response (FIR) filter. The transceiver unit sends a loop test signal to the line and calculates an impulse respo... | 03/06/2012 |
| 8041009 | Wired transmission line testing method The present invention relates to a wired transmission line testing method for determining at least one physical characteristic of a wired transmission line where the wired transmission line is coupled between a first line transceiver device and a second transceiver ... | 10/18/2011 |
| 7970105 | Subscriber line maintenance apparatus and methods Subscriber line maintenance apparatus and methods are disclosed. A maintenance operation is performed on a subscriber line in a communication system by an embedded test unit. The test unit limits an effect of the maintenance operation on communication signals that a... | 06/28/2011 |
| 7801280 | Methods and systems for measuring the perceptual quality of communications Described are methods, systems, and devices that include obtaining a first measured perceptual quality by measuring, at a first location associated with a communications network, a perceptual quality of a first communication transmitted from the first location to a ... | 09/21/2010 |
| 7653180 | Method for assessing DSL capability of telephone lines A test system and method for performing DSL assessments of a telephone line along a prescribed test path is disclosed. The disclosed test system and method includes a loop diagnostic test unit adapted for testing said telephone line using narrow-band and mid-band fr... | 01/26/2010 |
| 7606350 | Incentive-based DSL system Improved DSL and/or other communication system services can be provided by motivating users, service providers and operators to implement and comply with one or more operational conditions, such as parameter value limits and/or ranges, that enhance operation of the ... | 10/20/2009 |
| 7529347 | Test system for assessing DSL capability of telephone lines A system and method for performing DSL assessments of a telephone line along a prescribed test path is disclosed. The disclosed system includes a loop diagnostic test unit adapted for testing said telephone line using narrow-band and mid-band frequency test signals;... | 05/05/2009 |
| 7440552 | Fault detection method and apparatus for telephone lines A method and apparatus for detecting faults on a telephone line, the method comprising: comparing measured characteristics of the line with a model, said model modeling expected characteristics of the telephone line; and in response to the comparison, generating a f... | 10/21/2008 |
| 7426262 | Method and arrangement for loop test of a disturbed line The invention refers to single-ended test of a loop (2, 3). A test device (TD1) is connected to a remote device (3) via a line (2). The remote device is powered on and transmits intermittently handshake signals (HS1), which can dis... | 09/16/2008 |
| 7406157 | Methods and apparatuses for determining loop characteristics using an extended voice-band modem Embodiments of the invention provide methods for determining the characteristics of a local loop using the multi-carrier tones of a DSL activation process. For one embodiment, one or more sets of downstream multi-carrier tones of a digital subscriber line activation... | 07/29/2008 |
| 7400710 | MIMO dynamic PSD allocation for DSL networks A system and method for multiple inputs, multiple outputs (MIMO) PSD allocation in a DSL system is disclosed. In some embodiments, the method may comprise monitoring system performance by performing a multi-ended line test (MELT), processing the MELT and allocating ... | 07/15/2008 |
| 7388945 | Method and system for determining data transfer margins for network connections Method and system for determining data transfer margins and/or bit rates for network connections, the physical length of a network connection between a transmitter and receiver being known. A power spectrum is measured depending upon transfer frequency for possible ... | 06/17/2008 |
| 7373332 | Methods and apparatus for detecting temporal process variation and for managing and predicting performance of automatic classifiers Techniques for detecting temporal process variation and for managing and predicting performance of automatic classifiers applied to such processes using performance estimates based on temporal ordering of the samples are presented. ... | 05/13/2008 |
| 7365547 | Circuit arrangement for a corrosion protection current feed and for a line test for two-wire lines A circuit arrangement for a line test and for feeding a corrosion protection current into a two-wire line comprises a controllable ramp generator for producing a ramp voltage, at least one first test impedance to be connected to a first line of a two-wire line, at l... | 04/29/2008 |
| 7362850 | Method and arrangement for estimation of line properties The length and attenuation of a signal line between a transmitter and a customer premises equipment is to be estimated. A frequency dependent line input impedance (Zin(f)) as seen from the transmitter, is measured and an absolute impedance value (œ Z | 04/22/2008 |
| 7356348 | Method and apparatus for providing telecommunications over a cable network employing a wireless communication path as an alternative backup path A cable telephony network for providing a communications path connecting a first device and a second device. The communications path is selectable between a first communications path and a second communications path. The network comprises a broadband cable system, p... | 04/08/2008 |
| 7356586 | Filtering system and method for voice protocol network analysis A system, method and computer program product are provided for filtering various voice protocols. A plurality of voice protocols is initially displayed. Next, an indication is received from a user as to the selection of the voice protocols. It is further determined ... | 04/08/2008 |
| 7356127 | Global digital measurement device A digital wideband node (DWN) (28, 48) is coupled to a remote terminal (RT) (22, 42) that in turn is coupled to a subscriber's telephone line (26, 46). The DWN (28, 48) is configured to (1) pass a subscriber's telephone number signal dire... | 04/08/2008 |
| 7346149 | Method and apparatus for reversibly correcting nonlinear impairments in a communications channel In a transmission line, nonlinear impairments resulting from imperfect splices are mitigated by providing a bias current that shifts the operating points of these impairments resulting in improved stability, conductivity and linearity. ... | 03/18/2008 |
| 7313517 | Method and system for speech quality prediction of an audio transmission system Method and system for measuring the transmission quality of an audio transmission system (10). Preprocessing means (12) are present for preprocessing of an input signal (X) and an output signal (Y) to obtain pitch power densities (PPXwIKss(j)” 1′PY... | 12/25/2007 |
| 7305006 | System for allowing a single device to share multiple transmission lines A front end, such as can be used in a Home Phoneline Networking Alliance network, may connected to a plurality of transmission lines. Each of the plurality of transmission lines may connected to one or more devices, such as a plain old telephone service device or an... | 12/04/2007 |
| 7272398 | Providing to sender of message an identifier of service provider associated with recipient of the message An apparatus in one example comprises a gateway component that provides an identifier of a service provider to a sender of a message through employment of a user address associated with the recipient of the message. ... | 09/18/2007 |
| 7272209 | Automated DSL performance adjustment The present application discloses an automated digital subscriber line performance control system comprising a computer system including a logic module to evaluate performance of a plurality of DSL lines and to automatically select a set of DSL lines from the plural... | 09/18/2007 |
| 7263174 | Predicting performance of telephone lines for data services A method characterizes a customer line for data transmission. The method includes measuring electrical properties of the customer line from a central location, identifying a line model from the measurements, and identifying a modem model for a modem selected for use... | 08/28/2007 |
| 7251578 | Method and system of measuring data quality Data quality measurement is provided for use in a data processing stream, which comprises at least one upstream data processing system and at least one downstream data processing system. An input alert component can be used to provide a measurement of data prior to ... | 07/31/2007 |
| 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 |
| 7236770 | System and method for notifying target communication devices of message reception at a message server via log file monitoring A communication system includes a message server which receives messages addressed to target communication devices coupled to the message server by a communication link. The message server includes a log file which tracks the time that messages intended for various ... | 06/26/2007 |
| 7231403 | System and method for transformation and analysis of messaging data Systems and methods which provide translation and/or transformation of messaging data, such as that collected by a distributed management method, for collection, consolidation, processing, and/or analysis are shown. Preferred embodiments of the present invention pro... | 06/12/2007 |
| 7221703 | System and method for synchronizing sample rates of voiceband channels and a DSL interface channel A system is provided for synchronizing a PSTN clock and a DSL clock. The system comprises a PSTN interface for transmitting and receiving voiceband samples, a data DSL transceiver for modulating and demodulating data to and from DSL samples, a synchronization circui... | 05/22/2007 |
| 7215951 | Test system for mobile communication terminal in which state of progress of connection-transition test can be visually recognized A test procedure control unit outputs control information including time setting information along a procedure for carrying out a transition test of a connection state of a mobile communication terminal (UE) of a cellular system. A transmitting/receiving unit transm... | 05/08/2007 |
| 7200206 | Method and apparatus for testing a subscriber loop-based service A network interface device is positioned between a subscriber loop and the internal wiring of a subscriber's premise. Operational and performance data is captured and stored in memory for later use and analysis. Commands issued to the network interface device select... | 04/03/2007 |
| 7197237 | Method for transferring real-time files The recording or reproduction of real-time files (RF) imposes certain requirements on the recording and reproduction means. A DVD-RAM drive, for example, can read and write contiguous sectors rapidly, but requires a relatively long time in the event of jumps to othe... | 03/27/2007 |
| 7190714 | Peripheral device receiver detection in a high noise environment A receiver detector of a peripheral device for use in a computer system to detect whether a receiver is electrically coupled to a data port of the peripheral device includes a modulator, a high pass filter, and a demodulator. The modulator is configured to modulate ... | 03/13/2007 |
| 7184777 | Server and multiple sensor system for monitoring activity in a shared radio frequency band An intelligent spectrum management (ISM) system and method are provided that includes sophisticated features to detect, classify, and locate sources of RF activity. The system comprises one or more sensors positioned at various locations in a region where activity i... | 02/27/2007 |
| 7177394 | Connection architecture for XDSL networks and intermediate distribution frame for said architecture The connection architecture is configured to digitally monitor filters therein, directly connecting a test table to the intermediate distribution frame without requiring wiring to the DSLAM. Filter cards of the dominant operators and of second operators, at least on... | 02/13/2007 |
| 7177267 | Hardware monitoring and configuration management A transmission system is provided. The system includes a hardware monitor adapted to collect performance information about associated hardware components, a system information database adapted to refresh based on the collected performance information and to generate... | 02/13/2007 |
| 7177396 | Apparatus for management and remote control of electrical characteristics of wire pairs connected to a telephone exchange An apparatus for the management and the remote and/or automatic control of electric characteristics and signal transmissivity of the metallic line pairs connected to a telephone exchange, including measurement means and means able to connect said measurement means t... | 02/13/2007 |
| 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 |
