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7382797 |
Mechanism to select the physical media type connector in network devices
A network device comprises first and second transceivers configured to aid communication between a plurality of networked devices; first and second communication medium connections in communication...
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7349536 |
Techniques for providing uninterrupted digital communications to customers coupled to local loop generation equipment
Uninterrupted digital communications are provided between a central office and a customer premises by using a high-pass or bandpass filter to bypass local loop generation equipment. In many...
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7346158 |
Method and system for wiring a digital subscriber line circuit
A method and system are provided for wiring a digital subscriber line circuit between a customer premises and a central office. A first connection for a first cable pair is established between the...
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7342937 |
Spectrally flexible band plans with reduced filtering requirements
The present invention provides, in one embodiment, a method of simplifying filtering with respect to a band plan. The method includes selecting a reflection point relative to the band plan and...
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7339924 |
Method and apparatus for providing ringing timeout disconnect supervision in remote telephone extensions using voice over packet-data-network systems (VOPS)
A Multiservice Access Concentrator (MAC) provides a time limit for a first ringing voltage signal in response to an attempted call. The call is attempted via a voice over packet-data-network system...
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7330544 |
Digital isolation barrier as interface bus for modems
The present application provides a variety of exemplary embodiments, such as modem systems, modem devices, modem connectors, host connectors, communication systems and communication cards. For...
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7317751 |
Method and device for estimating SIR of a signal
Disclosed is a method and a device for estimating the signal to interference ratio of a signal, in particular in a base station of a WCDMA system, providing at least a first estimating process and...
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7302055 |
Discharging envelope detector
A receiver to detect pulses on a home phone wiring network using envelope detection. The receiver comprises an integrating capacitor charged by a first current source responsive to a differential...
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7298837 |
Cross-over voltage lock for differential output drivers
An apparatus comprising a first differential output driver to provide a single ended output voltage in response to an input voltage, a second differential output driver to provide a single ended...
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7266195 |
Surge clamp protection circuit
A surge clamp circuit that may be implemented with DAA circuitry to limit the total voltage developed across one or more line side capacitors due to charge pumping phenomenon during a...
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7260212 |
Method and apparatus for subscriber line control circuit
A subscriber line interface circuit apparatus includes a linefeed circuit and a subscriber line control circuit (SLCC). In an embodiment, the linefeed circuit includes a signal conversion circuit...
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7254229 |
Method and apparatus for an active impedance feedback
A method and apparatus is provided for performing an active impedance feedback. A signal is received. An active feedback synthesis is performed based upon the signal. Performing the active feedback...
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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...
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7239697 |
Supply power transition control
A variable power supply is controlled to supply power at approximately a first supply level for an electronic device. The variable power supply is controlled to control a transition of the power...
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7239696 |
Automatic reset for DSL lines
A method of automatically resolving a Digital Subscriber Line failure can include detecting a failure of the Digital Subscriber Line and establishing a call over a public switched telephone network...
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7239695 |
Method and apparatus for detecting line card threshold
A method and apparatus is provided. The method includes transmitting a signal having an AC component to a subscriber line and receiving at least a portion of the transmitted signal from the...
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7239627 |
Digital subscriber line services
A system for extending the effective distance of digital subscriber line service is provided. The system includes a central office terminal having a data interface and a plurality of line units....
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7233660 |
Method and system for extending backup battery life in primary line customer premises-equipment
Current to a relay causes a telephone to be connected to a SLIC. Following LOOP, a sleep switch opens to interrupt current to the power supply converter after a first predetermined period expires....
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7233649 |
Faster modem method and apparatus
A faster modem apparatus communicates with customer premise equipment according to a variety of communication protocols. The faster modem apparatus communicates with customer premise equipment...
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7224492 |
Facsimile apparatus capable of detecting a line connection
A facsimile apparatus can properly detect whether or not the facsimile apparatus is connected to a line. The facsimile apparatus comprises a network control device formed of a semiconductor DAA...
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7218713 |
Telephone line interface for DAA circuitry
A telephone line interface and associated circuitry that may be implemented to simultaneously couple DC loop voltage, ring bursts, and caller-ID data to the phone line side of a DAA circuit through...
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7215764 |
Current sensing echo cancellation device
A passive echo cancellation circuit for reducing echoes on a subscriber line includes an output driver adapted to drive a downstream signal on the subscriber line. First sensing circuitry is...
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7215763 |
Self-calibration procedure in physical layer transceiver for home telephone wire network
A novel method of configuring a physical layer transceiver for providing data communications via residential wiring. A transmit section of the transceiver produces a pulse signal having selected...
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7212502 |
Method and apparatus for dynamically adapting telephony analog loss based on channel content
A method is provided for introducing analog loss to an information-bearing signal being transmitted to or from end-user terminal equipment over a communication system such as a cable network The...
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7206403 |
Telephone terminal equipment interface circuit
The object of the present invention is to remove the dead region of a diode bridge and maintain stable operations in a telephone terminal equipment interface circuit. In order to realize this...
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7203515 |
Wireless local loop system for interfacing with analog communication device
A wireless local loop (WLL) system capable of interfacing with an analog communication device is provided. The WLL system comprises: a SLIC (SLT interface Circuit) capable of matching analog data...
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7200205 |
Interface device for testing a telecommunication circuit
An interface device and method for testing a telecommunication circuit by utilizing a test cord that has a first end that is integrated with the interface device and a second end that terminates...
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7197138 |
Programmable device and methods for disabling a ring signal in response to a detected off-hook condition
A method and structure for cutting a ring current when a telephone enters an off-hook state. The method includes: (1) activating an off-hook detected signal when the telephone enters an off-hook...
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7197137 |
Interface class discovery method and device
Methods and devices of determining the interface class used on a communication pathway are disclosed. The method compares information derived from the communication pathway to information about...
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7194083 |
System and method for interfacing plain old telephone system (POTS) devices with cellular networks
A system and method for interfacing plain old telephone system (PATS) devices with a cellular network is presented. In a broad sense, the system includes an interface that bridges the POTS devices...
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7194023 |
Loop extender with communications, control, and diagnostics
In accordance with the present invention, a Digital Subscriber Line (DSL) network for improving the transmission of DSL signals over a local loop is disclosed. The DSL network includes a loop...
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7190784 |
Method and apparatus for adaptive DC level control
A method and apparatus is provided for DC level control in a line card. The method includes receiving a digital input signal, determining a first DC component value of the digital input signal at a...
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7190783 |
Integrated digital subscriber line transceiver
An integrated digital subscriber line transceiver includes a single integrated circuit that has a digital signal processing engine, a time division multiplexing framer (for example, a T1/E1...
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7190716 |
Line powered loop extender with communications, control, and diagnostics
A Digital Subscriber Line (DSL) network for improving the transmission of DSL signals includes a plurality of local loops for transmission of upstream and downstream DSL signals, control signals,...
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7184544 |
Device and method for detecting presence of service on telephone line
A device and a method for detecting presence of service on a telephone line prior to and during activation of alternative service on the line. The method comprises performing a first voltage...
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7184428 |
Facility management platform for a hybrid coaxial/twisted pair local loop network service architecture
The present invention provides a facility management platform to monitor and view the status of a plurality of individually addressable downstream devices including, but not limited to, addressable...
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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...
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7167557 |
Subscriber line interface circuit (SLIC) including a transient output current limit circuit and related method
A subscriber line interface circuit (SLIC) for a subscriber loop includes a pair of output amplifiers for connection to the subscriber loop and a transient output current limit circuit. The...
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7167556 |
Circuit and method for stimulation of a telephone apparatus
An electric device ( 202, 301 ) for connecting an analogue data transfer device ( 202 ) by means of a control unit ( 203 ) to a digital transfer system comprises means for connecting to a data...
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7167555 |
Method for matching an adaptive hybrid to a line
Methods for matching adaptive hybrids ( 15 ) to lines ( 16 ) for making reflectograms of the lines ( 16 ) measure ( 1 ) input impedances (Z meas ) of the lines ( 16 ), model ( 2 ) characteristic...
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7167548 |
Method and apparatus for modifying gain settings in a connection interface
The operating characteristics of a network connection are modified to improve connection performance. Operating limits for the connection interface are identified. New gain setting are selected for...
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7162028 |
Universal telephony interface polarity detector
A method and apparatus for measuring signals conveyed by a varying the voltage polarity across the tip and ring terminals in a telephone system is disclosed. The invention provides a composite...
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7154940 |
Isolation system with digital communication across a capacitive barrier
An isolation system is provided that is suitable for use in telephony, medical instrumentation, industrial process control and other applications. Preferred embodiments of the invention comprise a...
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7149286 |
Electrical system like a system for testing the channels of a communication system
An electrical system is described comprising none or one or two function boards and at least one voltage converter. The function board/s and the voltage converter are connected such that a voltage...
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7139392 |
Device and method for suppressing DSL signal echo induced by bridgetap
A digital signal line transmission system with reduced echo is provided. A communication line is between a carrier and a user terminal. A bridgetap line has a first end connected to the...
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RE39406 |
Telephone line coupler
The telephone line coupler circuit has a single transmit opto-coupler whose output includes a DC bias component connected to a gate of a line seize switch for connecting a DC line seize load across...
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7130415 |
Line Driver apparatus
A line driver apparatus includes a peak detector operable to receive a data signal and output a first logic signal when the data signal is below a threshold value and output one of a plurality of...
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7130414 |
Active mode line voltage regulator for ringing subscriber line interface circuit
A voltage regulator circuit arrangement limits the DC voltage applied to a tip and ring amplifiers of a subscriber line interface circuit (SLIC), each of which has a first polarity input coupled to...
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7130412 |
Telecommunication line driver having synthesized output impedance derived from output current sensing circuit
A synthetic impedance telecommunication line driver has no electrical energy-dissipating elements in series with its output, and synthesizes its output impedance in accordance with current fed back...
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7130338 |
Apparatus and method for communicating voice and data between a customer premises and a central office
Systems and methods are provided for communicating data over a subscriber loop using a modem. One such method includes: transmitting data on the loop in a first frequency band; sensing an...
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