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7260092 |
Time slot interchanger
A digital cross connect comprises plural switching stages. Each stage has plural switches which receive plural frames of time multiplexed input data and which switch the data in time and space....
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7237035 |
Frame structure and method for wavelength concatenated channel framing
A method and apparatus capable of supporting a wavelength concatenated framing protocol is disclosed.
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6373852 |
Coupling multiple low data rate lines to effect high data rate communication
Apparatus for linking multiple baseband telephone lines to provide broadband communication. The apparatus includes a broadband port, a plurality of baseband ports, and a controller. The broadband...
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6327260 |
Controlled routing to a plurality of signaling interfaces at a single telephonic switch
A telecommunication system network having a public telephonic network switch which communicates signaling information in accordance with Signaling System 7 protocol with a signal transfer point. A...
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5923671 |
Coupling multiple low data rate lines to effect high data rate communication
Apparatus for linking multiple baseband telephone lines to provide broadband communication. The apparatus comprises a broadband port, a plurality of baseband ports, and a controller. The broadband...
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5835566 |
System and method for providing in-band and out-of-band testing of telecommunications network components
For use in a telecommunications network containing a component to be tested ("UUT"), a system for, and method of, providing in-band and out-of-band signals to test and analyze the UUT. The system...
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5610945 |
System for identifying communication sequences transmitted across multiple carriers by examining bit streams for sequences of valid words
A system and method for asynchronously receiving data blocks, in parallel, across multiple fibers in a serial manner. Frame groups are provided as a mechanism to transmit associated data serially...
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5598413 |
Four-wire, half-rate architecture with embedded differential delay compensation for extending range of basic rate ISDN communications
To extend the transmission distance for basic rate integrated services digital network (ISDN) communications between a first site and a second site, the basic rate ISDN channel is demultiplexed...
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5561771 |
System for transmitting data between systems using selected subsets of plural interconnecting bus lines and including selection of a compatible transmission speed
A method and apparatus for transmitting data between nodes connected to a communications bus, preferably a computer backbone, divides a full bus width into a plurality of sub-buses. Each sub-bus...
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5459720 |
System for internetworking data terminal equipment through a switched digital network
A System including device access, network access system management, and related method for providing users who have require aperiodic high bandwidth data transmission requirements between remote...
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5442750 |
System for transmitting data between systems using selected subsets of plural interconnecting bus lines and including selection of a compatible transmission speed
A method and apparatus for transmitting data between nodes connected to a communications bus, preferably a computer backbone, divides a full bus width into a plurality of sub-buses. Each sub-bus...
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5426645 |
Parallel rule-based data transmission method and apparatus
A parallel rule-based data transmission method and apparatus is described comprising multiple computer ports, modems, and multiple data transmission channels. The invention incorporates hardware...
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5361259 |
Wide area network (WAN)-arrangement
A WAN is formed using Frame Relay Protocol and a telephone network interface unit. An originating LAN sends a message to a router which communicates with a telephone network interface unit using...
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5331632 |
Expandable time slot interchanger
A transmission scheme serially propagates time slot data to a plurality of TSI modules with time slot data contained in one TSI frame being serially transmitted from module to module in a...
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5329524 |
TDM circuit-switching arrangement that handles frames of different sizes
A time-division multiplexed circuit switch (100) handles different-size time-division multiplex frames (30, 40, 50) in a single, shared, time-space-time switching fabric. Both time slot interchange...
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5293378 |
Parallel multi-line packet transmission system
A packet transmission system wherein a packet can be transmitted at a high rate over a long transmission distance using a transmission medium which is economical and easy to handle. Under the...
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5271003 |
Internal routing method for load balancing
An internal routing method in an internal network for improving signaling message processing capability by balancing the workload among message handling processors (MHP) in common channel signaling...
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5226042 |
Method for establishing wideband communications through a time division switching system
A method of establishing an N time slot connection through first and second, single-buffered time slot interchangers where the time slots interconnecting the two time slot interchangers, referred...
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5140611 |
Pulse width modulated self-clocking and self-synchronizing data transmission and method for a telephonic communication network switching system
Transmissions of synchronous digital data from a master control unit (50A) to a slave, network termination unit (50B) are via a pulse width modulated data stream including pulse width modulated...
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5128929 |
Time division switching system capable of broad band communications service
Sometimes digital data become out of order as it passes through a time division switching system. This invention restores the proper order by transmitting sequence information with the digital...
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