|
Match
|
Document |
Document Title |
|
|
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....
|
|
|
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...
|
|
|
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....
|
|
|
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...
|
|
|
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...
|
|
|
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...
|
|
|
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...
|
|
|
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...
|
|
|
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...
|
|
|
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...
|
|
|
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...
|
|
|
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...
|
|
|
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...
|
|
|
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...
|
|
|
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...
|
|
|
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...
|
|
|
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...
|
|
|
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,...
|
|
|
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...
|
|
|
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...
|
|
|
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...
|
|
|
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...
|
|
|
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...
|
|
|
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...
|
|
|
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...
|
|
|
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...
|
|
|
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...
|
|
|
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...
|
|
|
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...
|
|
|
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...
|
|
|
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...
|
|
|
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...
|
|
|
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...
|
|
|
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...
|
|
|
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...
|
|
|
7127062 |
Hybrid circuit for a broadband modem
A hybrid circuit that couples a broadband modem to a POTS or ISDN telecommunication line (TL) and includes a transformer bridge circuit (TBC) that includes a bridge circuit (BC). The bridge circuit...
|
|
|
7127061 |
Line driver for digital signal transmission
In a line driver an input current (IINN) feeds a node (K 1 ) which is connected to an input on an amplifier (OTA 1 ). A further input on the amplifier (OTA 1 ) has a reference voltage (VSGND)...
|
|
|
7127060 |
Subscriber circuit
A subscriber circuit, provided with a feeding circuit for feeding the current of a call to a terminal through a subscriber line and a switching circuit group for connecting the feeding circuit to...
|
|
|
7120245 |
Communication device having a two-mode controlled isolation circuit for power transport and bidirectional communication
A communication device ( 1 ) is described, comprising a powered transceiver ( 2 ), a line transceiver ( 3 ), an isolation circuit ( 4 ) comprising three capacitors C b1 , C b2 and C b3 , which are...
|
|
|
7116674 |
Method and apparatus for digital subscriber line access multiplexer stacking
An architecture for stacking DSLAMs employs a master DSLAM having a control circuit and an uplink communication circuit to a central office and two LVDS circuits for communication with two DSLAM...
|
|
|
7116779 |
Network interface device for high speed data lines
A network interface device for Ethernet networks using unshielded twisted pair cables comprising an overvoltage protection module and an interconnection module connected to the overvoltage...
|
|
|
7116778 |
Adaptive linefeed control for varying load on a subscriber loop
A linefeed on a subscriber loop is generated to generate a current on the subscriber loop. Whether a relationship between a voltage on the subscriber loop and a threshold voltage for an identified...
|
|
|
7113591 |
Current sense circuit in a line powered network element
Managing line power for network elements in an access network. In one embodiment a current sense system in a line power network is disclosed. The current sense system includes a power supply, a...
|
|
|
7113575 |
ADSL filter
An ADSL/POTS filter arrangement includes a filter and a switchable return loss correction circuit coupled to one side of the filter. The switchable return loss correction circuit includes a...
|
|
|
7113589 |
Low-power reconfigurable hearing instrument
A reconfigurable processing unit for a digital hearing instrument includes an IS processor module, a plurality of processing units and a crosspoint switch matrix. The IS processor module receives a...
|
|
|
7113590 |
Method and apparatus for a differential feedback in an active impedence feedback circuit
A method and apparatus is provided for performing an active impedance differential current feedback. A signal is received. A current feedback of an output signal in an active feedback synthesis...
|
|
|
7110531 |
Isolation system with analog communication across an isolation barrier
An isolation system with analog communication across an isolation barrier includes an isolation barrier circuit having at least one isolation element; a digital to analog circuit having an analog...
|
|
|
7106855 |
Method and apparatus for connecting broadband voice and data signals to telephone systems
A system for use in connecting broadband voice and data signals to communications systems such as the telephone system. Due to the low pass filtering characteristics of a standard twisted pair used...
|
|
|
7103175 |
Systems and methods for an electronic hook switch for customer premises equipment
Embodiments of the present invention relate to systems and methods for an electronic hook switch for customer premises equipment. In an embodiment, a system includes a first lead configured to be...
|
|
|
7099313 |
Replaceable printed board assembly (PBA)
A separately replaceable printed circuit board or card for use in a shelf of a telecommunications system with plural twisted pairs connected to corresponding plural subscribers via said card, each...
|