| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 379399010 | SUBSCRIBER LINE OR TRANSMISSION LINE INTERFACE | 74 |
| 20080199001 | METHOD AND DEVICE FOR OPTIMIZING SIGNAL POWER ON A WIRED COMMUNICATIONS NETWORK - A method and network device increases the power of the signal transmitted by the device on a wired communications network, such as a powerline communications (PLC) network, without exceeding the maximum allowable common-mode (CM) current specified by regulatory bodies. The device is first tested for regulatory body compliance on a standard network. The output voltage of the device is adjusted until the maximum allowable CM current is detected, and this voltage level and CM current are recorded and stored in non-volatile memory of the device. The device is then connected to the actual network and the output voltage set to the previously recorded value. At this voltage level, the CM current in the actual network is measured and recorded. The difference between the CM current measured with the device on the actual network and the maximum allowable CM current is calculated and used to calculate the amount the output power of the signal from the device can be increased without exceeding the maximum allowable CM current. | 08-21-2008 |
| 20080219430 | OUTLET ADD-ON MODULE - A method and an apparatus for upgrading an existing service outlet (e.g. LAN, telephone, power or CATV outlet) in a house by adding functionality thereto. The functionality is added by an add-on module, connected electrically and secured mechanically to the existing outlet. Several attachment devices are exampled, including surface attachment, side clamping, snap locking, strap securing and fastening screws. The add-on module may include a service connector for retaining the basic existing outlet function. The module may be attached in a permanent way or by using a detachable solution. | 09-11-2008 |
| 20080279365 | Telecommunications Interface - In order to provide unbalanced ringing when an exchange line card provides a balanced ringing output the interface provides a ringing detector in circuit with a customer pair. On detecting balanced ringing signals from the line card, the interface takes over the customer line pair and provides unbalanced ringing signals to the customer and monitors for customer answer. By inserting the interface in circuit at the main distribution frame of an exchange, legacy customer premises equipment which is unable to respond to balanced signalling can be provided with an appropriate ringing signal without the necessity to provide differing line cards at the exchange. | 11-13-2008 |
| 20080310616 | METHOD AND SYSTEM FOR SUBSCRIBER LINE INTERFACE 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 which provides a differential mode signal and a common mode signal in response to at least a tip signal and a ring signal from the subscriber loop. The linefeed circuit includes a tip control circuit and a ring control circuit. In an embodiment, the SLCC is provided in a single integrated circuit chip and is coupled to the linefeed circuit which isolates the SLCC from the tip or ring signals. The SLCC includes a first and a second differential mode inputs for receiving the differential mode signal, and a common-mode input for receiving the common-mode signal. In an embodiment, the SLCC also provides various tip control signals and ring control signals to the tip control circuit and the ring control circuit, respectively. | 12-18-2008 |
| 20100020962 | Method and apparatus for transmitting signaling tones over a packet switched network - As part of a system and method for transmitting a signaling tone over a packet switched data (or other communication) network, an audio encoder may have a speech encoding unit and a tone distorter. The tone distorter may distort one or more components of a signaling tone within an audio signal and the speech encoding unit may encode speech and the distorted signaling tone within the audio signal. A control signal may be sent to a tone generator to reproduce the distorted tone. | 01-28-2010 |
| 20100086121 | METHOD AND SYSTEM FOR SUBSCRIBER LINE INTERFACE CIRCUIT HAVING A HIGH-VOLTAGE MOS LINEFEED 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 having cross-coupled first and second MOSFETs for providing a differential mode signal and a common mode signal in response to at least a tip signal and a ring signal from the subscriber loop. The linefeed circuit includes a tip control circuit and a ring control circuit, each having two or more MOSFETs. In an embodiment, the SLCC is provided in a single integrated circuit chip and is coupled to the linefeed circuit which isolates the SLCC from the tip or ring signals. The SLCC includes a first and a second differential mode inputs for receiving the differential mode signal, and a common-mode input for receiving the common-mode signal. | 04-08-2010 |
| 20100091979 | Universal ISDN/POTS splitter | 04-15-2010 |
| 20100104090 | Method and Arrangement for power Minimization in a Multi-Tone Transmission-Based Communication System - A method and transmitter unit in a multi-tone, multi-line based transmission system, such as a digital subscriber line system, for determining a Power Spectral Density (PSD) of a plurality of users over a physical channel for at least one tone. Each of the users has a minimum required data rate and a maximum allowed power. A Power Minimization Problem (PMP) is formulated mathematically, introducing Lagrangian multipliers, and by utilizing a dual decomposition approach for the objective function of the PMP in order to solve the PMP on a per-tone basis. | 04-29-2010 |
| 20100124326 | SUBSCRIBER LINE INTERFACE CIRCUITRY WITH COMMON BASE AUDIO ISOLATION STAGE - Methods and apparatus for coupling outgoing analog audio signals to a subscriber line are described. A subscriber line interface circuit apparatus couples an outgoing audio signal to the subscriber line through a common base isolation stage. In one embodiment, linefeed driver control signals for controlling battery feed to the subscriber line are received on the same signal lines as the outgoing audio signal. In various embodiments, the common base isolation stage comprises a plurality of bipolar junction transistors coupled in a common base configuration or a plurality of field effect transistors coupled in a common gate configuration. | 05-20-2010 |
| 20100166172 | SUBSCRIBER LINE INTERFACE CIRCUITRY WITH INTEGRATED SERIAL INTERFACES - Methods and apparatus for communicating include a first device coupled to a second device with a bi-directional data line and a clock line. Frames of data are serially communicated between the first and second devices on the data line. Each frame is synchronized with a clock signal carried by the clock line. Each frame has a portion allocated to data communicated from the first device to the second device and another portion allocated to data communicated from the second device to the first device. | 07-01-2010 |
| 20110058666 | METHOD AND SYSTEM FOR MANAGING COMMUNICATION SESSIONS SET-UP BETWEEN USERS - A method for enabling a calling user to establish a communication session with a called user, the calling user being associated with at least one calling user device and the called user being associated with at least one called user device, wherein the communication session can be established through a plurality of possible communication services and provisioning of said plurality of possible communication services is enabled through a corresponding plurality of communication service actuators, includes: a) receiving from the at least one calling user device, a request to establish a communication session with the called user, b) determining if, among said plurality of possible communication services, there is at least one communication service currently available to establish a communication session with the called user at the at least one called user device, based on current context information on the called user, c) in the affirmative case of b), selecting one of the at least one currently available communication service based on predetermined policies, and d) sending to the communication service actuator that enables the provision of the communication service selected in c) suitable information for starting establishment of the communication session between the calling user and the called user through the selected communication service. | 03-10-2011 |
| 20110096920 | Apparatus and method for data communication - The present invention relates to a data communication method and apparatus comprising a noise information memory for storing noise information to indicate a degree of noise on a current communication line and capable of performing communications in a plurality of communication modes. The method and apparatus further comprising a mode memory for storing the plurality of communication modes in response to the degree of noise, and a mode change control unit for reading current noise information from the noise information memory and selecting the communication mode corresponding to the current degree of noise from the mode memory, and changing the current communication mode into the selected communication mode. The present invention provides an apparatus and a method for highly reliable data communication with simplified construction. | 04-28-2011 |
| 20120134489 | Dynamic digit mapping based on a connected party and methods thereof - A method, user configurable interface and communication device for dynamic digit mapping based on a connected party. In one illustrative embodiment, the keypad can include a user configurable interface for dual-tone multi-frequency driven systems. The keypad can have an electronic memory storing associations between user entries to system entries for a dialed number. A generator circuit can be coupled to the electronic memory and have an input terminal to receive user entries and a terminal to transmit digits corresponding to the system entries for the dialed number. A program executable on the generator circuit can receive a user entry for the dialed number, map the user entry to a system entry using the associations stored within the electronic memory and provide output corresponding to the system entry through the terminal to the dialed number. | 05-31-2012 |
| 20130028408 | SOFT RESET METHOD FOR DSL APPARATUS - A soft reset method for a DSL apparatus. The method includes: receiving a soft reset command; controlling, according to the soft command, a service module of the DSL apparatus to perform a soft reset; and simultaneously controlling, according to a preset service module type, a non-service module of the DSL apparatus to maintain a working status. According to at least some embodiments of the invention, during the soft reset process of the DSL apparatus, it is unnecessary to perform reset on all service modules and non-service modules, so that an initialization operation load of the system during the soft reset process is reduced. Moreover, because it is unnecessary to perform soft reset on non-service modules, time that is consumed during the soft reset process of the DSL apparatus is reduced, and the user experience is correspondingly enhanced. | 01-31-2013 |
| 20130251140 | Continuous Power Transfer Scheme for Two-Wire Serial Wire - The invention provides a single digital communication link between system-side and line-side circuitry in a DAA, capable both of carrying data signals and of transferring a substantial amount of power to the line-side circuitry. The invention comprises a system-side interface circuit, a line-side interface circuit, and an isolation barrier including a transformer. Each interface circuit is capable of connection to an upstream communication circuit (either line-side or system-side), from which it may receive data signals to be transmitted across the isolation barrier to the other interface circuit, and to which it may pass data signals received across the isolation barrier from the other interface circuit. The line-side interface circuit may further include a rectifier and a storage device. | 09-26-2013 |
| 20130259222 | SPLITTER WALL PLATES FOR DIGITAL SUBSCRIBER LINE (DSL) COMMUNICATION SYSTEMS AND METHODS TO USE THE SAME - Splitter wall plates for digital subscriber line (DSL) communication systems and methods to use the same are disclosed. An example apparatus comprises a splitter to separate a digital subscriber line (DSL) signal from a plain old telephone signal (POTS) signal, and a switch to selectively couple a VoIP signal received via a first jack or the POTS signal to a second jack. | 10-03-2013 |
| 379400000 | For line length compensation | 2 |
| 379401000 | Voltage boosting circuit | 2 |
| 20090052653 | TELEPHONE DEVICE, TELEPHONE LINE MONITORING DEVICE AND METHOD - A telephone line monitoring device is connected to a telephone line and adjacent to a telephone device using the telephone line. The telephone line monitoring device includes a rectifying circuit for generating a corresponding direct current voltage according to an effective voltage of the telephone line; a first controller for generating a first control signal when the direct current voltage is lower than a predetermined voltage; a second controller for detecting an operating state of the telephone device and generating a second control signal when the telephone device is operated; a load booster for pulling down the effective voltage of the telephone line when enabled; and a first switch circuit for disabling the load booster whenever receiving the second control signal, and enabling the load booster when receiving the first control signal while not receiving the second control signal. A monitoring method and a telephone device are also provided. | 02-26-2009 |
| 20140169552 | Power Efficiency of a Line Driver - An apparatus comprising a first line driver, a second line driver, a charge pump, and a control logic circuit coupled to the first line driver and the second line driver and configured to disable the charge pump when both a first control signal associated with the first line driver and a second control signal associated with the second line driver indicate a charge pump disable state. A network component comprising at least one processor configured to implement a method comprising receiving a first control signal and a second control signal, disabling a charge pump when both the first control signal and the second control signal indicate a charge pump disable state, and operating the charge pump to boost a voltage when the first control signal, the second control signal, or both indicate a charge pump active state. | 06-19-2014 |
| 379402000 | Hybrid circuit | 5 |
| 20100142699 | METHOD, SYSTEM, AND APPARATUS FOR A DIFFERENTIAL TRANSFORMER-FREE HYBRID CIRCUIT - A differential transformer-free hybrid circuit includes a first amplifier configured to receive a first signal from a transmitter and output the first signal to a telephone loop, and a second amplifier configured to receive a second signal from the telephone loop and output the second signal to a receiver. Further, the differential transformer-free hybrid circuit also includes at least one balanced network element and a transformer-less interface configured to couple the first amplifier and the second amplifier to the telephone loop, wherein the transformer-less interface includes at least one current blocking device. | 06-10-2010 |
| 20100166173 | SUBSCRIBER LINE INTERFACE CIRCUITRY WITH INTEGRATED SERIAL INTERFACES - Methods and apparatus for communicating include coupling first and second devices with a first unidirectional data line, a second unidirectional data line, and a clock line. Frames of data are serially communicated between the first and second devices using the first and second unidirectional data lines. The frame format of a frame carried by the first unidirectional data line is distinct from a frame format of a frame carried by the second unidirectional data line. Each frame is synchronized with a clock signal carried by the clock line. | 07-01-2010 |
| 379403000 | With adjustable balance circuit | 3 |
| 20090129583 | UNPOWERED TWISTED PAIR LOOPBACK CIRCUIT FOR DIFFERENTIAL MODE SIGNALING - A method and apparatus provide an IP telephone or similar device with a mechanism to receive and at least briefly loop back discovery signals received from a telecommunications device such as an Ethernet switch while not permitting the loop back of data packet signals. No mechanical relays are required and the circuitry can be fully integrated on an integrated circuit using commonly available techniques, if desired. | 05-21-2009 |
| 20120063589 | Driver Circuit and Method for Driving a Signal - A driver circuit for driving a transmit signal for a line includes a signal amplifier configured to deliver a transmit signal, present at a signal input of the signal amplifier, amplified with a gain to a signal output, a line interface circuit connected between the signal output of the signal amplifier and the line, and a hybrid circuit connected to the line interface circuit, the hybrid circuit configured to suppress the transmit signal and couple a received signal received via the line to a signal input of the signal amplifier to provide impedance synthesis. | 03-15-2012 |
| 20160065729 | DUAL-SOURCE HYBRID CANCELLATION SCHEME - Embodiments of the invention relate to methods and apparatuses for performing hybrid rejection that overcome various shortcomings of the prior art. In one embodiment, the transformer's receive winding is stacked on top of the transmit winding, the two being wired in series and in phase. Z2 is scaled by approximately half so as to maintain the same receive gain. In another embodiment, rather than stacking the receive and transmit windings for series summation, they are each used as independent sources into the summing junction of the receive amp. If Z2 and Z3 are equal, then an equal proportion of V1 and V2 are summed. | 03-03-2016 |
| 379412000 | Protective circuit | 13 |
| 20080285741 | TELEPHONE INTERFACE CIRCUIT - A telephone interface circuit has a first transistor for opening and closing a connection between a speech circuit and a pair of subscriber lines, a second transistor for controlling ON/OFF states of the first transistor, and a positive feedback circuit for positively feeding back, to a base terminal of the second transistor, a part of collector current flowing through the first transistor. A circuit constant is set such that when normal use voltage is applied to the pair of subscriber lines, the second transistor operates in a saturation region, and when voltage exceeding the normal use voltage is applied to the pair of subscriber lines, the second transistor operates in a non-saturation region. | 11-20-2008 |
| 20090092243 | Protection Circuit and Method - Apparatuses and methods for coupling a voltage supply input of an interface circuit of a communication device to a reference potential in response to at least one of an over-voltage and an over-current occurring in a communication line. | 04-09-2009 |
| 20100119056 | ATTENUATION AND TERMINATION CIRCUIT USING IMPEDANCE SYNTHESIS - The present invention discloses circuits for isolating and attenuating signals generated by a telephone network. In disclosed embodiments, a metering pulse signal is isolated from the terminals of the connecting device, and then attenuated with an impedance that is synthesized with a programmable digital signal processor. Embodiments also utilize the digital signal processor to synthesize a termination impedance for the connecting device. The termination impedance matches closely the characteristic impedance of the network, so as to minimize wave reflections and the like. | 05-13-2010 |
| 20100150338 | Circuit device with serial bus isolation - In a particular embodiment, a circuit device includes a first circuit having a first plurality of serial terminals including a first data receive terminal and a first data transmit terminal. The first plurality of serial terminals is communicatively coupled to a particular circuit via isolation circuitry to communicate first serial data. The circuit device further includes a second circuit having a second plurality of serial terminals including a second data receive terminal coupled to the first data transmit terminal and including a second data transmit terminal coupled to the first data receive terminal to communicate second serial data to the particular circuit via the first data receive and transmit terminals. | 06-17-2010 |
| 20100278329 | PORT DETECTION AND PROTECTION CIRCUIT AND ELECTRONIC DEVICE USING THE SAME - A port detection and protection circuit utilizes a voltage detection circuits to output a detection signal according to a voltage difference between the tip signal and the ring signal and utilizes a ring detection circuit to output another detection signal according to a voltage difference between a Subscriber Line Interface Circuit (SLIC) tip signal and a SLIC ring signal signaling an incoming call. In addition, the port detection and protection circuit utilizes at least one logic component to output logic signals according to the detection signals. The port detection and protection circuit further switches a loop of a tip wire, a ring wire and the SLIC on or/and off based on logic signals, and issues an alarm according to the logic signals. | 11-04-2010 |
| 20100316214 | INTEGRATED ACCESS DEVICE AND OVERCURRENT PROTECTION METHOD - An integrated access device (IAD) protects overcurrent of a DAA chipset. The IAD periodically detects an on-hook/off-hook state of the DAA chipset, and periodically monitors an OPD state of the DAA chipset upon the condition that the on-hook/off-hook state of the DAA chipset is detected in off-hook state at least twice. The IAD further sets the on-hook/off-hook state of the DAA chipset as on-hook to avoid damage to the DAA chipset caused by overcurrent upon the condition that the OPD state of the DAA chipset indicates the DAA chipset is overcurrent. | 12-16-2010 |
| 20100329445 | Surge Immunity Circuit for Telecom DDA - In described embodiments, a data communication device employing, for example, a modem and a data access arrangement (DAA) electrically connected to a telephone network has an increased surge immunity through use of improved hook switch driver and line modulation driver circuitry. In accordance with described embodiments, hook switch driver circuitry exhibits decreased surge power dissipation by maintaining the hook switch driver transistors in saturation at higher currents while reducing the collector-emitter voltage across hook switch driver transistors, and line modulation driver circuitry exhibits decreased total surge power dissipation by i) limiting surge voltage ii) over voltage stress of the line driver transistor. | 12-30-2010 |
| 20110051925 | METHOD AND APPARATUS FOR SHARED POSITIVE PROTECTION - A line card includes a plurality of subscriber line interface circuits, a plurality of interface lines, and a first overvoltage protector. The subscriber line interface circuits each have a first input terminal operable to receive power at a first positive reference voltage. The interface lines are each coupled to one of the subscriber line interface circuits for interfacing with subscriber lines external to the line card. The first overvoltage protector is coupled to the interface lines and referenced to the first positive reference voltage to provide overvoltage protection responsive to a voltage on at least one of the interface lines exceeding the first positive reference voltage. | 03-03-2011 |
| 20110051926 | OVERVOLTAGE PROTECTION WITH POWER SINK - A line card includes a subscriber line interface circuit, an interface line, and a first overvoltage protector. The subscriber line interface circuit has a first input terminal operable to receive power at a first reference voltage. The interface line is coupled to the subscriber line interface circuit for interfacing with a subscriber line external to the line card. The first overvoltage protector is coupled to the interface line and referenced to the first reference voltage to provide overvoltage protection responsive to a voltage on the interface line exceeding the first reference voltage by a first predetermined threshold. | 03-03-2011 |
| 20120002800 | Subscriber Line Interface Circuit with DC-DC Converter Current Protection - A method of controlling a switching regulator includes setting a current limit (ILIM) to a first value, I | 01-05-2012 |
| 20120069990 | SHARED PROTECTION SCHEME FOR MULTIPLE VARIABLE BATTERIES - A device includes a plurality of subscriber line interface circuits and a shared protection device. Each subscriber line interface circuit has a voltage input terminal and first and second interface line terminals. The shared protection device is coupled to the interface line terminals and operable to sense a negative reference voltage representing a most negative one of the voltages present on the voltage input terminals and to provide overvoltage protection responsive to a voltage on at least one of the interface line terminals exceeding the negative reference voltage. | 03-22-2012 |
| 20160065728 | NETWORK INTERFACE DEVICES HAVING EXTERNAL DEMARCATION POINTS - A method of providing a telecommunications service using a network interface device (NID) is provided. The method includes connecting a provider line to one or more protector assemblies connected to a ground bar and configured to conduct current surges from the NID to ground. The one or more protector assemblies are electrically connected to an insulation displacement connector (IDC) module. An outgoing jack module wire is connected to the IDC module by inserting the outgoing jack module wire into a wire insertion hole of the IDC module to receive signals from the provider line. The outgoing jack module wire is electrically connected to a jack module outside the NID thereby providing a demarcation point. An incoming jack module wire is electrically connected to the jack module for carrying signals back to the NID. | 03-03-2016 |
| 20160198038 | Cable Pair Stabilizer Unit and Method and System for Generating Sealing Current | 07-07-2016 |
| 379413000 | Power supply (e.g., battery feed) | 22 |
| 20080232578 | ETHERNET VOLTAGE SOURCE APPARATUS AND METHOD - An Ethernet voltage source apparatus and method. The apparatus includes an electrical connector, a receiving circuit electrically connected to the Ethernet cable connector, a voltage regulator/power conditioning circuit electrically connected to the receiving circuit, and a first interface output connector electrically connected to the voltage regulator/power conditioning circuit. The receiving circuit receives a first voltage signal and an Ethernet data signal from the Ethernet cable. The receiving circuit separates the first voltage signal from the Ethernet data signal. The voltage regulator/power conditioning circuit generates a second voltage signal from the first voltage signal. The second voltage signal is configured as a first power source for an industrial/commercial device. The first interface output connector is configured to electrically connect the second voltage signal to the industrial/commercial device. | 09-25-2008 |
| 20090003587 | LINE POWERING AN AUXILIARY DEVICE - A system for providing subscriber line power to an auxiliary device may include a primary communications device, a secondary communications device, and an auxiliary device. The primary communications device and the secondary communications device may be connected to opposite ends of at least one subscriber line. The auxiliary device may be connected to the secondary communications device. The auxiliary device may be powered by the primary communications device via the subscriber line and the secondary communications device. A power capacity metric of the at least one subscriber line may be determined. An operating power metric of the secondary communications device may be determined. A power budget may be calculated from the power capacity metric and the operating power metric. The power budget may be enforced. For example, the secondary communications device may limit power to the auxiliary device to enforce the power budget. | 01-01-2009 |
| 20090010421 | Device and a Method for Adjusting Power Spectral Densities of a Plurality of Telecommunications Lines - The invention relates in particular to a method of adjusting power spectral densities of a plurality of telecommunications lines sending data in a plurality of frequency sub-bands, a power spectral density being assigned to each sub band sending data. The method comprises the following steps: selecting at least one line, called the donor line, whose capacity for sending data is higher than a predetermined reference capacity, selecting at least one sub band of said donor line, and reducing the power spectral density assigned to the selected sub band to a predefined minimum power level in said sub band. | 01-08-2009 |
| 20090022306 | Encoding Status Signals in DC Voltage Levels - System and method for encoding status signals in DC voltage levels is provided. The value of a status indicator received on status signals are encoded as a series of pulses, and the voltage level from a power source, such as a power supply or a rechargeable battery, is modulated in accordance with the series of pulses. In an embodiment, the voltage level from the power source is varied between two levels, both of which are acceptable power levels. The drops in the voltage levels represent the value of the status indicator. On the receiving end, the power signal is translated into a logical voltage level and converted to a digital value. The digital value is decoded into the status indicator. | 01-22-2009 |
| 20090245504 | Power Supply with Digital Control Loop - One embodiment of a power supply apparatus includes a first switcher coupled to provide VOUT from a VSUPPLY. A cascaded second switcher is coupled to provide a subscriber line interface circuit target VBAT from VOUT, wherein the first switcher is placed in one of an active mode and an inactive mode in accordance with a function of VSUPPLY and VBAT, wherein in the active mode | 10-01-2009 |
| 20090257580 | FUNCTION FOR CONTROLLING LINE POWERED NETWORK ELEMENT - A network element comprises a power interface to receive power from a power communication medium; a service interface to provide a telecommunication service over a service communication medium; management interface to receive management data over one of the service communication medium and the power communication medium via at least one primitive; and a control module to monitor the at least one primitive and to control operation of the network element based on the at least one monitored primitive. | 10-15-2009 |
| 20100061545 | Extended Signaling System and Method - Embodiments are described that include a “front end” device located remotely from a local telephone location. The front end filters DC and AC current on a telephone line to separate these signals and passes a DC current through a low resistance Low Pass Filter without traditional resistance or current limiting means. The front end also provides signaling capability isolated from the DC and audio channels by a High Pass Filter. Some embodiments also include a “back end” unit located near a local telephone location. The “back end” unit filters the DC and AC currents into at least two DC current streams. One of the DC current streams provides sufficient current to power a local telephone. The other stream(s) provides current sufficient to power an auxiliary device. The “back end” device may also provide signaling isolated from the DC and audio channels that is complementary to the “front end” signaling. | 03-11-2010 |
| 20100080380 | Method and Apparatus for Supplying DC Feed to a Subscriber Line - A subscriber line apparatus including linefeed driver circuitry for providing a DC feed for a tip line and a ring line of the subscriber line from a power supply in accordance with linefeed driver control signals. Bypass circuitry couples the tip and ring lines to the power supply in accordance with a power mode control. The tip and ring lines are coupled to the power supply through the linefeed driver circuitry in a first power mode. The linefeed driver circuitry is bypassed to couple the tip and ring lines to the power supply in a second power mode. | 04-01-2010 |
| 20100080381 | Method and Apparatus for Supplying DC Feed to a Subscriber Line - A subscriber line apparatus including linefeed driver circuitry for providing a DC feed for a tip line and a ring line of the subscriber line from a power supply in accordance with linefeed driver control signals. Bypass circuitry couples the tip and ring lines to the power supply in accordance with a power mode control. The tip and ring lines are coupled to the power supply through the linefeed driver circuitry in a first power mode. The linefeed driver circuitry is bypassed to couple the tip and ring lines to the power supply in a second power mode. | 04-01-2010 |
| 20100086123 | REMOTE POWERED NODE - The present invention relates to a remote powered node for a hybrid fibre-copper network. The node may be powered using the dormant copper pair(s) linking the node to the telephone exchange to carry a ringer current. The ringer current can be controlled to power all the electrical load of the node. Alternatively, the ringer current may power all of the components common to all customers served by the node, with the customers feeding power to their customer specific components via a UTP cable. | 04-08-2010 |
| 20110033038 | METHOD AND APPARATUS FOR BATTERY SWITCHING DURING RINGING - A method for providing a ringing signal includes providing a plurality of batteries coupled to a subscriber line interface circuit operable to generate the ringing signal during a ringing cycle and switching selected batteries during the ringing cycle based on values of the ringing signal during the ringing cycle. A line card includes a subscriber line audio-processing circuit operable to generate values for a ringing signal during a ringing cycle, a subscriber line interface circuit coupled to the subscriber line audio-processing circuit and operable to drive the ringing signal on a subscriber line based on the generated values, a plurality of batteries coupled to a subscriber line interface circuit and a control unit operable to switch selected batteries during the ringing cycle based on the generated values of the ringing signal. | 02-10-2011 |
| 20110081014 | Subscriber Line Interface Circuitry with POTS Detection - A subscriber line interface circuit (SLIC) apparatus includes a first memory for storing a first battery feed characteristic profile and a second memory for storing a second battery feed characteristic profile. The SLIC includes selection circuitry for selecting one of the first and second battery feed characteristic profiles from the corresponding first and second memories as a selected battery feed characteristic profile in accordance with a selection bit. The subscriber line interface circuitry controls a subscriber line battery feed in accordance with the selected battery feed characteristic profile. | 04-07-2011 |
| 20110116621 | POWER SAVING TECHNIQUE FOR TELEPHONY ACCESS NETWORKS - Technique is proposed for managing total power consumption in an access network comprising two or more interface modules serving a plurality of subscriber lines, the technique comprises performing a study of real power consumption of the subscriber lines in the access network on a line-to-line basis, correlating results of the study with inventory information concerning allocation of the subscriber lines to the interface modules and power consumption ensured by said modules to the lines and, based on the correlation, assessing optimality of allocation of the subscriber lines to the interface modules. | 05-19-2011 |
| 20120099724 | Device for Controlling a Supply Voltage for a Terminal - A control device includes a circuit operable to sense an analogue input voltage dependent on a line current flowing via a communication line of a terminal generate an analogue difference voltage in a constant line current operation based on a difference between the sensed analogue input voltage and an analogue feedback voltage which depends on an adjustable nominal direct-current value and filter a sequence of control error values from a sequence of digital difference voltage values converted from the generated analogue difference voltage. The circuit is further operable to convert a control value generated from the sequence of control error values in the constant line current operation to an analogue direct voltage for supplying the terminal and convert the nominal direct-current value into the analogue feedback voltage in the constant line current operation. | 04-26-2012 |
| 20120155632 | Codec circuit for POTS system - A CODEC circuit for POTS system comprises a digital circuit for outputting a digital control signal having a first bit width, the digital control signal being indicative of a voltage to be applied to a POTS subscriber line pair. Further, the CODEC comprises a noise shaper coupled to an output of the digital circuit for generating a noise-shaped control signal and a digital-to-analog converter coupled to an output of the noise shaper, the input of the digital-to-analog converter having a second bit width being larger than 1 and smaller than the first bit width. | 06-21-2012 |
| 20120294438 | METHOD AND APPARATUS FOR IMPROVING POWER OUTPUT EFFICIENCY OF LINE DRIVER - A method and an apparatus for improving power output efficiency of a line driver are disclosed. The method includes: obtaining a current working parameter of an xDSL subscriber board, where the current working parameter includes at least one of a working mode configured on a subscriber port of the xDSL subscriber board and current output power of the subscriber port; and determining, according to the current working parameter, a control signal for a line driver in the xDSL subscriber board and outputting the control signal. | 11-22-2012 |
| 20130089199 | Communication System in a Package Formed on a Metal Microstructure - An apparatus includes a metal frame, a switching power circuit, and at least one semiconductor die implementing a communication interface. The metal frame includes a plurality of external pads, and a plurality of base pads coupled to selected external pads. The switching power circuit is mounted to selected base pads and includes an input terminal, an output terminal, an energy storage device mounted to a first subset of the base pads and coupled to the output terminal, and a switching element mounted to a second subset of the base pads and coupled to the input terminal and the energy storage element. The at least one semiconductor die provides a control signal to the switching device to control an output voltage present at the output terminal. | 04-11-2013 |
| 20130163750 | ADAPTER - A telephone adapter includes first and second conversion circuits, a switch unit, and a RJ11 interface. The first conversion circuit includes a digital to analog (D/A) converter and a coupler. The second conversion circuit includes an analog to digital (A/D) converter and a decoupler. When the switch unit connects the first conversion circuit to the RJ11 interface, the D/A converter converts a first digital signal from the RJ11 interface into a first analog form data. The coupler couples the first analog form data to a first alternating current (AC) voltage. When the switch unit connects the second conversion circuit to the RJ11 interface, the decoupler decouples and separates a second AC voltage into a second analog form data. The A/D converter converts the second analog form data into a second digital signal, and outputs the second digital signal to the RJ11 interface. | 06-27-2013 |
| 20140321636 | METHOD AND SYSTEM FOR PROVIDING DC POWER ON LOCAL TELEPHONE LINES - A telephone unit device connectable in series between a telephone set and a wire pair coupled to a telephone service and carrying DC power and an AC telephone signal. The device includes: a first connector connectable to the wire pair; a second connector connectable to the telephone set; means connected between the first and second connectors for passing substantially without change the AC telephone signal between the wire pair and the telephone set; and means connected between the first and second connectors for receiving DC power only from the wire pair and converting the DC power to a level suitable for proper telephone operation of the telephone set connected thereto. | 10-30-2014 |
| 20140355753 | METHOD FOR OPTIMISING ELECTRICAL CONSUMPTION OF A RESIDENTIAL GATEWAY - The present invention concerns a method for optimising the electrical consumption of a residential gateway comprising at least one FXS port to which an analogue telephone is connected via a line, said FXS port being configured from a pair of polarisation points, referred to as default, which defines maximum voltage and current characteristics of the line that are predetermined so as to ensure correct operation of the telephone in on-hook or off-hook mode whatever the type of this telephone. The method is characterised in that it comprises the following steps:
| 12-04-2014 |
| 20150098562 | VOLTAGE REGULATOR WITH CHARGE PUMP FOR GENERATING SECOND VOLTAGE SOURCE - A voltage regulator includes a switch coupled between an input voltage terminal and an energy storage element, a first output capacitor coupled to a first node defined between the switch and the energy storage element, the first capacitor being coupled to a first output voltage terminal, a charge pump circuit coupled to the first node and comprising a second output capacitor coupled between a second output voltage terminal and the first output voltage terminal, and a controller operable to selectively enable the switch to control voltages generated at the first and second output terminals. | 04-09-2015 |
| 379413010 | Circuitry to provide ringing current supply | 1 |
| 20110033039 | METHOD AND APPARATUS FOR CONTROLLING RINGING VOLTAGE - A method for controlling power dissipated in a subscriber line interface circuit includes measuring a power parameter of the subscriber line interface circuit during a ringing cycle, comparing the measured power parameter to a target power parameter and adjusting at least one ringing parameter of a ringing signal generated by the subscriber line interface circuit based on the comparison. A line card includes a subscriber line interface circuit operable to generate a ringing signal, and a subscriber line audio-processing circuit operable to measure a power parameter of the subscriber line interface circuit during a ringing cycle, compare the measured power parameter to a target power parameter, and adjust at least one ringing parameter of the ringing signal based on the comparison. | 02-10-2011 |
| 379413020 | Network interface device (NLD) | 16 |
| 20080226060 | OUTLET ADD-ON MODULE - A method and an apparatus for upgrading an existing service outlet (e.g. LAN, telephone, power or CATV outlet) in a house by adding functionality thereto. The functionality is added by an add-on module, connected electrically and secured mechanically to the existing outlet. Several attachment devices are exampled, including surface attachment, side clamping, snap locking, strap securing and fastening screws. The add-on module may include a service connector for retaining the basic existing outlet function. The module may be attached in a permanent way or by using a detachable solution. | 09-18-2008 |
| 20080232579 | Telephone communication system over a single telephone line - A network for coupling at least one telephone service signal to at least one telephone device over a wiring. The network includes: a wiring having at least two conductors for carrying multiple time-domain multiplexed digitized voice channels; an exchange side device coupled to the wiring and operative to couple at least one telephone service signal to at least one digitized voice channel; and at least one subscriber side device coupled to the wiring and operative to couple the at least one telephone device to at least one digitized voice channel. | 09-25-2008 |
| 20090136021 | Device Providing Phone Services to Phones Plugged to a Residential Phone Wiring That Is Not Coupled to a Central Office Telephone Exchange - The present invention concerns a device comprising a first interfacing means for linking to a residential phone wiring and a second interfacing means for accessing a network, the residential phone wiring being connected to a first phone subscriber line interface means located in a central office, the residential phone wiring comprising plugging means for connecting at least a first analogue phone. The device comprises second phone subscriber line interface means for providing phone services over the network and means for coupling the first phone to the second phone subscriber line interface means when the residential phone wiring is disconnected from the first phone subscriber line interface means. | 05-28-2009 |
| 20100142700 | System for Translation and Communication of Messaging Protocols into a Common Protocol - An adapter for passing messages in a telecommunications infrastructure from a first device to a second device. The adapter comprises a messaging interface, a processor, and a bus interface. The messaging interface is in communication with the first device and is operable to receive a received message in a first messaging format from the first device. The processor is coupled to the messaging interface and is operable to receive the received message from the messaging interface and translate the received message into a common message in a common format. The bus interface is coupled to the processor and is operable to receive the common message from the processor and transmit the common message to the second device through a bus. | 06-10-2010 |
| 20100296647 | METHOD, SYSTEM AND APPARATUS FOR CONTROLLING A NETWORK INTERFACE DEVICE - According to embodiments of the present invention, a method, system and apparatus for controlling a network interface device is disclosed, the network interface device for enabling communication between a communications network and at least one customer device. A condition of the network interface device is determined. In response to the condition of the network interface device qualifying as a reset condition, a trigger is generated. The trigger is released to a power controller, the trigger having an ability to cause the power controller to cycle power to the network interface device. | 11-25-2010 |
| 20110188650 | ARRANGEMENT FOR NETWORK INTERFACE MODULE - Exemplary embodiments of the present invention relate apparatus used to interface to a communications network. Specifically, the embodiments relate to apparatus for placement in a network interface device (NID), and may also relate to a configuration for an interface module that may be used as a splitter and balun for telephone and data services. | 08-04-2011 |
| 20120002801 | Subscriber Line Interface Circuitry Line Driver - A linefeed driver apparatus includes a first current mirror having an input leg for current I | 01-05-2012 |
| 20140241521 | TELEPHONE INTERFACE - An apparatus ( | 08-28-2014 |
| 379413030 | Including connection for alternate communication line (e.g., cable) | 1 |
| 20110255686 | Interface Devices for Facilitating Communications Between Devices and Communications Networks - Interface devices for facilitating communications between devices and communications networks are provided. According to one aspect, a destination interface device for providing communications between a first device and a second device comprises one or more inputs, one or more outputs, and logic. The one or more inputs of the destination interface device receive data in a first format from a source interface device. The logic translates the data to a second format compatible with the second device. The translated data is then transmitted to the second device via the one or more outputs. The destination interface device may subscribe to the source interface device for access to enhanced features as well as for access to data associated with communications networks and devices. | 10-20-2011 |
| 379413040 | Connection block or module | 7 |
| 20080260142 | Splitter architecture for a telecommunications system - An interface card adapted to be mounted at the back plane of a splitter chassis. The interface card includes card edge connectors for providing connections with a splitter card. The interface card also includes cable connectors for inputting mixed voice and data, and for outputting data and voice signals. Tracings are provided on the interface card for interconnecting the cable connectors and the card edge connectors. The tracings are configured such that first tracings carrying data signals from the splitter card to the cable connectors do not cross second tracings carrying voice signals from the splitter card to the cable connectors. | 10-23-2008 |
| 20080273691 | Communication line interface - A communication cable interface having a plurality of interface input jacks, each interface input jack capable of receiving an input connector of a service provider communication cable. The interface has an interface output jack for outputting a plurality of service provider signals onto another communication cable and into a distribution panel for distribution of signals to cabling that has been run throughout a residence. The signals are combined from the interface input jacks onto the interface output jack in a one-to-one relationship among terminals of the respective jacks. | 11-06-2008 |
| 20090060168 | NETWORK INTERFACE - A network interface device (NID) and associated printed circuit board is provided that includes metallic die cast housing and doors configured so that one of the doors, when closed, physically separates service provider circuitry from the customer premise equipment (CPE) side connections on a circuit card within the NID so that an end-customer may access the CPE side connections while the service provider circuitry remains secured from end-customer access. Moreover, the metallic housing provides increased physical strength and tamper resistance, including improved heat dissipation properties to radiate internal heat build-up more efficiently. The NID may be configured to provide insertable interface cards to permit flexibility in service provisioning and includes options for a type-200 T1 module, a type-400 T1 module, a type-200 high bit rate Digital Subscriber Line (HDSL) module, a type-400 HDSL module or an ISDN module. | 03-05-2009 |
| 20090122976 | WIRE GUIDE PLATE AND ASSEMBLY AS WELL AS A TELECOMMUNICATIONS MODULE COMPRISING AT LEAST ONE WIRE GUIDE PLATE - A wire guide plate ( | 05-14-2009 |
| 20100232596 | Splitter Card with Integral Test Access - A splitter card having integral test access devices. The splitter card allows test access to be readily provided at any location where splitter cards are typically mounted (e.g., a splitter chassis). | 09-16-2010 |
| 20110103575 | HIGH-DENSITY SPLITTER/PATCH TELECOMMUNICATIONS SYSTEM - A high-density telecommunications patch/splitter system to allow a user to access multiple adapters disposed on even high-density splitter modules and odd high-density splitter modules. The even high-density splitter modules have an even adapter array and the odd high-density splitter modules have an odd adapter array that, when installed in the chassis, allow a user access to the adapters. | 05-05-2011 |
| 20130010948 | TELECOMMUNICATIONS MODULE WITH DISCONNECTION FEATURE - A telecommunications module ( | 01-10-2013 |
