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7376127 |
Methods for reconstructing missing packets in TTY over voice over IP transmission
A system for reconstructing missing packets in a packetized audio TTY stream that includes:
(a) an input 328 operable to receive a plurality of first packets, each comprising one or more...
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7366286 |
Modified asymmetric digital subscriber line for use with long loops
Systems and methods are described for modified asymmetric digital subscriber line for use with long loops. A method includes modifying a digital signal processor including reallocating a portion of...
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7352803 |
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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RE40057 |
Method and apparatus for providing interoperation between a digital communication system and a public switched telephone network
An interworking unit ( 14 ) for providing an interface between a digital communication network ( 12 ) and a public switched telephone network (PSTN) ( 16 ) includes a de-vocoder ( 30 ), a protocol...
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7327719 |
Managing internet protocol unicast and multicast communications
A system for managing internet protocol of at least unicast and/or multicast communications over a network has a network interface 20 for interfacing between the network 10 and other parts of...
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7324632 |
Distribution device in a data signal processing installation, and data signal processing installation
The invention relates to a distribution device ( 2 ) in a data signal processing installation ( 1 ), and a data signal processing installation ( 1 ). The distribution device comprises a...
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7289610 |
Digital subscriber line service over loaded loops
The preferred embodiments of the present invention generally provide improved communications over a subscriber loop that is loaded with at least one and potentially a plurality of load coils. The...
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7272215 |
Automatic rapid switching between DSL service and POTS over loaded loops
The preferred embodiments of the present invention generally provide improved communications over a subscriber loop that is loaded with at least one and potentially a plurality of load coils. The...
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7272136 |
Dual tone multi frequency signal detection
A signalling tone detector for use in a communications network for the detection of dual frequency multi-tone (DTMF) pairs of signal tones in a time division multiplex (TDM) signal. The detector...
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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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7227932 |
Multi-band data over voice communication system and method
An interactive system and method for communicating data over a network of twisted pair wiring that is in active use as a conductive path for ordinary telephone signals. Data is encoded redundantly...
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7224780 |
Multichannel transceiver using redundant encoding and strategic channel spacing
A transceiver is operable to connect to a 2-wire conductive path to communicate information in multiple channels to a companion transceiver. Data is encoded redundantly inside the channels,...
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7206392 |
Fiber optic premise wiring system
A premise wiring system comprises a backend communications system including telephony capabilities and at least one communications device configured for electrical signalling. A signal conversion...
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7164756 |
Data communication system for supplementing telephone calls
A telephone device coupled to the public switched telephone network is utilized by a user to participate in a telephone call between the user and a second party. A data store is provided for...
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7162012 |
Apparatus and method for transitioning between TTY and voice transmission modes
According to an embodiment, both a first and second of audio information are buffered during transmission so that when a transition occurs between transmission types no information is lost.
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7154996 |
Dynamic frequency passband switching in home phone-line networks
A method of dynamic spectral bandwidth allocation in home phone-line networking (HPN). An HPN terminal is configured to sense transmission activity in a frequency sub-band corresponding to a...
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7145991 |
Superposition of data over voice
Method and apparatus for transmitting messages between communication devices via a communication channel allowing at least voice messages to be transmitted, the messages including data subdivided...
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7145990 |
High-speed data communication over a residential telephone wiring network
A method and system for communicating between a number of computers within a residence over an active telephone network, and for communicating data between a telephone exchange and the residence in...
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7136466 |
DSL integrated call waiting
Phone system for a digital subscriber line integrated call waiting service are provided. A representative phone system includes a digital subscriber line routing system operable to check an...
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7130396 |
Medical monitoring system having multiple communications channels
A medical monitoring system has a sensor system including a sensor associated with a patient and a remote monitoring unit. The remote monitoring unit includes a microprocessor in communication with...
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7113574 |
Integrated telephone set with an xDSL-modem
Integrated telephone with an xDSL-modem ( 2 ), comprising a splitter unit ( 6 ) for separating telephone signals received via a telephone line ( 9 ) in a low-frequency band from data signals...
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7076033 |
Bit rate matching system and method
A method and system of matching a bit rate to a transmit bit rate used to transmit data on a data link are disclosed. A bit pattern in data received on the data link is detected using a bit rate....
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7039166 |
Apparatus and method for visually representing behavior of a user of an automated response system
A system for visually representing user behavior within an interactive voice response (IVR) system of a call processing center generates a complete sequence of events within the IVR system for...
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7020266 |
Simultaneous transmission of an analog pots signal and a digital signal on a subscriber line
Apparatus and method for simultaneously providing multiple telephone-type services to any/all POTS-type devices on a single wire pair at a user premises. The present invention provides for the...
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6985497 |
Method and apparatus for network transmission capacity enhancement for the telephone circuit switched network
Adjunct apparatus for increasing network transmission capacity provides a low-cost, efficient solution for increasing the network transmission capacity of the existing telephone circuit switched...
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6973180 |
Method for processing telephone signals supplied by an analog telephone terminal and data supplied by a data terminal
A method of handling telephone signals supplied by an analog telephone set and data supplied by a data terminal in a subscriber line circuit of a digital telephone switching system used at least in...
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6973170 |
Multi-pair broadband transmission system
A high-speed data transmission network system ( 8 ) is provided. The system ( 8 ) includes a plurality of subscriber premises ( 12 ) that transmit a first upstream signal ( 28 ) on a first...
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6959036 |
Method and apparatus for an X-DSL modem supporting multiple X-DSL line codes
An X-DSL modem supporting multiple X-DSL line codes including discrete multi-tone (DMT) and carrierless phase and amplitude (CAP). The modem includes: components coupled to one another to form a...
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6947530 |
Adaptive pilot tone location in a transmission system
A system selects a tone at which a pilot sequence is to be transmitted. The system includes logic configured to adaptively select a tone on which the pilot sequence is transmitted based one or more...
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6934368 |
Multi-band modem
A method for communication includes modulating a stream of data in accordance with a voice-band modem specification, so as to generate a modulated signal. The modulated signal is up-shifted to...
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6901138 |
Digital communication system using telephone line and initializing method thereof
Disclosed is an initializing method of an xDSL modem in which a gain of an amplifier for the reception is set to the maximum to detect a received signal when a communication channel is established...
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6888884 |
Method and system for dynamically inverting an asymmetric digital subscriber line (ADSL) system
A method and system for dynamically inverting an A symmetric Digital Subscriber Line (ADSL) system. The ADSL system includes a central exchange equipment (CE) connected to a service provider...
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6882710 |
Telephone and system for direct delivery of information
A telephone system includes a data distributor between the outputs of a public exchange switch and customer lines. The data distributor provides a controllable, simultaneous and direct connection...
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6839413 |
Method and system for data communication
According to one embodiment of the present invention, a system ( 10 ) for data communication disclosed that comprises a first transceiver unit ( 20 ), a second transceiver unit ( 22 ), and a...
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6804348 |
Circuit for echo-cancellation in an asymmetric, two-way time-and frequency-shared communication medium
A hybrid circuit models a plurality of attributes of a communication system including a subscriber line coupled to a line interface circuit. The plurality of attributes includes subscriber line...
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6795497 |
Use of end to end compression devices in telecommunication networks
A method of transmitting signals along a communication path, by a first compression/decompression unit, which method comprises receiving first signals from a first direction along the path,...
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6781989 |
Method to support VLANs on a phoneline network
The present invention is a method of communicating within a phone line LAN. The method includes the assignment of a unique VLAN ID to each node of a VLAN. A VLAN header is attached at a source node...
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6778649 |
Method and apparatus for transmitting coded audio signals through a transmission channel with limited bandwidth
A digital audio transmitter system capable of transmitting high quality, wideband speech over a transmission channel with a limited bandwidth such as a traditional telephone line. The digital audio...
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6778648 |
Systems and methods for wireline ring tone service
A system configured to deliver wireline messages to terminating stations, such as telephones, using a conventional public switched telephone network (PSTN). The wireline messages may be composed of...
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6763097 |
Source adaptive digital subscriber line and method
A communication system includes a plurality of subscribers having a telephone set and different types of home modems coupled using twisted pairs to a local server that includes a plurality of...
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6757549 |
Methods and apparatus for adapting transmission power of a remote wireless device
The transmission power of a wireless device is adapted in response to a determination that errors within a data message are above a threshold level. The data message is simultaneously transmitted...
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6757369 |
Line sharing for POTS and DSL services
A voice over DSL telephone system for a customer premises. The system includes a network interface device having a DSL filter coupling DSL service from a central office to the customer premises...
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6754233 |
Method and apparatus for transmitting data between a central site and multiple data subscribers
A communication system for transmitting voice and data information is disclosed. The communication system includes subscriber modems, system converters and at least one system data pump. The system...
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6751303 |
Data communication over telephone voice channel using DTMF interface
A multifrequency tone generator sends data over a telephone voice channel. An alphanumeric character generator sequentially generates alphanumeric characters. Preferably, the character generator...
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6728367 |
Apparatus and method for filtering voiceband and metering tone frequencies of a mixed voice/data signal
An apparatus and method provide for filtering of voiceband and specified tone frequencies of a mixed voice/data signal, such as an Asymmetric Digital Subscriber Line (ADSL) signal. A lowpass filter...
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6724871 |
System and method for adding multiple line capabilities to an existing CPE wiring system
A telephony method and system for enabling a logical telephone line for a telephone station coupled to a personal computer coupled to a high-bandwidth channel is provided. A telephony method and...
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6724869 |
Multimodal telephone numbers
Data communication between a data sender and at least one data recipient is facilitated when the data recipient is associated with a telephone number that can not be used to access the user with a...
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6704397 |
Filter arrangement
A filter arrangement particularly adapted to be used in a “splitter” of an ADSL system where several POTS equipment, e.g., subscriber sets, are connected to a same telecommunication line. The...
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6700973 |
System for transmitting DTMF signal and communication equipment thereof
A communication apparatus 1 or 2 connected to a PBX 4 or 5 and an ATM network 3 , is provided with a DTMF signal detecting portion 102 for detecting whether or not a DTMF signal is...
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6697463 |
System for providing increased data speed using high resolution analog to digital conversion
Method and apparatus for transmitting encoded data and/or voice signals with increased data speed in a communications system using high resolution analog to digital and digital to analog...
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