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Match Document Document Title
7366780 System and method for controlling and managing sessions between endpoints in a communications system  
In a communications system having a plurality of endpoints ( 240,242,246 ) each including a logical entity and its physical counterpart, a system for controlling and managing session between at...
7356738 Electronic apparatus having improved diagnostic interface  
Electronic apparatus, such as a personal computer, is described comprising main operative functionality and a power provisioning system for powering the apparatus from an external power source, the...
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...
7295570 Determining a profile for an interface of a network device  
Selecting a profile for an interface of a network device includes accessing profile sequences, where each profile sequence corresponds to an interface. Each profile sequence includes profiles that...
7295569 Selecting a profile for an interface of a network device according to a margin  
Selecting a profile for an interface of a network device includes accessing profile sequences, where each profile sequence corresponds to an interface. Each profile sequence includes profiles that...
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...
7277531 Method and apparatus for fast V.90 modem startup  
A fast startup procedure for a modem system utilizes known characteristics of a previously established communication channel to reduce the initialization period associated with subsequent...
7174004 Network based method and apparatus for supporting interoperability between incompatible TTY devices  
The present invention is directed to providing compatibility between teletype telephone devices. In particular, embodiments of the present invention alter the described duration of tones used to...
7142510 Communications network  
In a communications network, communications terminals exchange call control capability data which mutually identifies selected call control protocols and network address types. The terminals...
7068764 V.90 over all-digital connections  
A method of forming a V.90 connection on an all digital connection. The method includes transmitting a request to connect from a digitally connected client modem ( 28 ) to a digitally connected...
7062022 Method and apparatus for fast V.90 modem startup  
A fast startup procedure for a modem system utilizes known characteristics of a previously established communication channel to reduce the initialization period associated with subsequent...
7039180 Method and apparatus for enabling multiple protocol communication over a network  
A method and apparatus for enabling multiple protocol communication over a network are disclosed. A first circuit communicates first signals in a first frequency band using a first data protocol...
7031446 Device for use in communication systems  
A first device receives and processes signals from a communication link that supports a plurality of signal protocols. The device comprises a converter, coupled to the communication link, that...
7006611 Interface for a telecommunication system  
An improved interface is provided for transmitting data messages between a telephone switching system and an adjunct processor. The interface hardware includes multiple connectors for connecting...
6985566 Point of sale modem for high-speed communications  
A fast train protocol for use by a high-speed point of sale (POS) modem is disclosed. In one aspect, the fast train protocol may include he following exemplary steps: receiving an instruction to...
6925158 Modem function incorporated in a programmable logic controller  
At least one exemplary embodiment of the present invention includes a system comprising a modem adapted to be integrated into a programmable logic controller and adapted to facilitate...
6922467 Quick connect parameter exchange  
The startup, retrain, renegotiation quick connect or other processes of handshaking between communication systems involve the exchange of certain modulation, constellation, precoder, prefilter and...
6912276 Modem on hold  
A modem to modem communication system supports call waiting services by exchanging hold request and acknowledge signals before relinquishing the line servicing incoming calls. Thereafter, the modem...
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...
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...
6693998 Error correction and compression parameter exchange during modem training phase  
The startup, retrain, renegotiation quick connect or other processes of handshaking between communication systems involve the exchange of certain modulation, constellation, precoder, prefilter and...
6683944 Voice transmitter  
A voice transmitter includes a first selector for selecting an output of DTMF encoding means or that of voice-DTMF encoding means; DTMF transmission control means for monitoring each state, and for...
6594467 Unidirectional communication scheme for remote maintenance and control in a broadband wireless access system  
A system and method for remote maintenance and service of one or more wireless modems in communication with a wireless hub is provided. The system and method include the capability of the wireless...
6522730 DSL communication system with improved bandwidth  
A telecommunications system using DSL modems ( 36, 38 ) detects on-hook or off-hook states of a local loop telecommunications line ( 18 ). If the local loop ( 18 ) is in an off-hook state, the...
6463056 Arrangement for providing network protocol data independence in an expandable telecommunications system  
A network protocol data intelligence (NPDI) software in the switching node that enables the call processing components in the L 4 and L 5 applications to interpret and manipulate different...
6449286 R2 multi-frequency compelled signalling using a DSP on a network termination card  
A method and apparatus are provided for processing signals received on a R 2 multifrequency compelled signalling subscriber channel within a telephone switch. The method includes the steps of...
6396912 Method and system for connecting multiple DSL modems to a telephone line  
A system and method for allowing multiple digital subscriber line modems to access a telephone line. The embodiments employ additional signaling protocols to enable equipped modems to distinguish...
6324268 Splitter-less digital subscriber loop modems with improved throughput and voice and data separation  
A digital subscriber loop (DSL) modem and methods for controlling a DSL modem are provided which support simultaneous voice and data communications, wherein the voice communication is provided in a...
6320879 Communication system and method for interleaving or transmission of telephone rings and data  
A telephone communication system is implemented to enable data communication and ring signaling to coexist on a subscriber loop. The communication system transmits data during the silence intervals...
6314170 Modem apparatus and data communication method  
A modem parameter required for a modem apparatus is stored in a memory for each telephone number of a communication destination in advance based on past communications. At a communication time, a...
6269154 Splitterless modem with integrated off-hook detector  
A splitterless DSL modem (200) with an integrated off-hook detector (260) prevents data loss and/or disconnections as a voiceband device (154) coupled to the same transmission line (150) transition...
6246754 Mechanism for changing a modem's connection rate within a family of interoperable modems  
A modem which enables re-negotiation of the selected modem technology subsequent to the original negotiation which takes place at initiation of the modem connection. The invention includes means...
6236719 Arrangement for data transmission utilizing telephone network  
For modem connections via telephone lines, modems that respectively correspond to the modems of the terminal equipment side are arranged in the subscriber line circuits of the telephone switching...
6236676 Intelligent adaptive modulation system  
A system and apparatus for enabling modems having incompatible modulation methods to communicate with one another. The adaptive modulation system is adapted to enable a first communications device...
6151355 Wireless modem  
A modem unit, typically a wireless modem unit, has a bidirectional digital data port, a modem, a transceiver, and a microcontroller programmed to control the unit according to a control program....
6141403 Modem protocol  
When two 56K server modems communicate with one another over the public switched telephone network, they signal each other so that they communicate data to each other in a digital pass-through mode...
6075620 Communication apparatus having communication function complying with ITU-T V. 8 and V. 34 recommendations  
In a communication apparatus (e.g., a facsimile apparatus) having ITU-T V. 8 and V. 34 recommendations, when it is determined that a partner has the V. 8 and V. 34 functions, the apparatus omits...
6041105 Adapter circuitry for computers to support computer telephony  
An external adapter circuitry is plugged into the printer port of a host computer to provide the utility of computer telephony for the host computer. The circuitry is housed in a compact box which...
6035019 Communication control device which converts modem commands into telephone control function to communicate and command conversion method thereof  
A communication control device including an analog modem control unit for outputting a control command for controlling an analog line modem, a communication control unit for controlling a...
6014440 Inter-half call protocol negotiation techniques  
A method for protocol negotiation between an originating call handler and a terminating call handler, both of which reside within a switching node of a telecommunications network. A call initiated...
5995598 Phone line LAN  
Existing modems and phone lines are employed to allow two or more data processing systems to communicate. The data processing systems communicate utilizing weak signals on top of existing phone...
5960062 Method of recording the communication between a CPE and a SPCS/server  
A method of recording the bi-directional communication between a customer premises equipment (CPE) and a server of a stored program controlled system (SPCS) in an analog display services interface...
5949861 System and method for improving protocol delay tolerances  
A system and method for extending the time period at which a facsimile response signal can be received before a time-out occurs without altering the underlying transmission protocol. The disclosed...
5915002 Communication device  
When a type of a connected channel is to be detected, a CPU of a communication device sets a channel in an off-hook state by closing a channel closing section, and an existence of the DC current...
5912888 Digital network access server  
Apparatus and method for enabling bilateral transmission of digital data between a local area network and telephone company networks employing both analog and digital telephone lines. A modem...
5905780 Electronic mail system  
Apparatus and method providing improvements in establishing a data path between local and selected remote equipment over non-dedicated telephone lines. The present invention provides for the...
5854828 Telephone customer support utility  
A telephonic customer support utility for providing diagnostic support of a customer computer including encoding an operational status of a customer's computer to produce audible tones on a speaker...
5844808 Apparatus and methods for monitoring and communicating with a plurality of networked remote vending machines  
Devices and methods to monitor a distributed system for supplying goods or services and to generate messages concerning the state of the system and the supplied goods or services, Two-way...
5835574 Dual-tone multi-frequency signal transfer protocol  
A handshake between sending and receiving devices (10) that exchange DTMF signals across a network (14) is accomplished by having the receiving device send a DTMF ready tone (digit) for a...
5818913 Method and Apparatus for multiplexing voice data over a single DTE/DCE link  
An otherwise conventional DTE and an otherwise conventional DCE are provided with operating logic for multiplexing voice and data on a single DTE-DCE link linking the DTE and the DCE. The operating...
Matches 1 - 50 out of 128 1 2 3 >