Multifunction interface facility connecting wideband multiple access subscriber loops with various networks
0 Assignments
0 Petitions
Accused Products
Abstract
An device, called a facilities management platform (FMP) connects current digital and analog carrier networks and packet switched networks of interexchange carriers with high speed multiple access subscriber links implemented over twisted pair lines. The subscriber line is terminated by an access module containing one or more modems. In preferred embodiments, the modems are high-speed digital tethered virtual radio channel or xDSL modems. The FMP interface applies and receives signaling and voice through a digital loop carrier (DLC) via a multiplexer connected directly to the DLC backplane. The multiplexer is controlled by a controller of an access module. It translates data from the subscriber link to the form compatible with the digital backplane to create the appearance of one or more line cards. The FMP also may contain a sound generator to allow it to handle calls through an analog carrier network. The FMP, through the same access module transmits data to and from the modems directly through connected digital networks, such as ATM or SONET, of an interexchange carrier. Through this interface, different network companies can offer competing products through different networks all seamlessly connected through a high speed subscriber line.
138 Citations
49 Claims
-
1-29. -29. (canceled)
-
30. A system comprising:
-
a plurality of modems configured to demodulate subscriber data from a subscriber link to generate a digital stream comprising the subscriber data, the subscriber data comprising voice data, signaling data, and user data, the subscriber data routable via a plurality of networks;
a plurality of digital filters configured to separate voice data from the digital stream absent a digital data link failure, each of said plurality of digital filters communicatively coupled to a corresponding modem of said plurality of modems;
a time division multiplexer adapted to receive a plurality of voice signals from said plurality of digital filters absent a digital data link failure, said time division multiplexer communicatively coupled to a bus adapted to receive time division multiplexed signals; and
a plurality of line cards, each of said plurality of line cards communicatively coupled to a corresponding modem of said plurality of modems, each of said plurality of line cards adapted to receive the voice data routed to said plurality of line cards responsive to a detected digital data link failure, each of said plurality of line cards adapted to convert the voice data into a digital format, each of said plurality of line cards adapted to transmit the digitized voice data via the bus adapted to receive time division multiplexed signals. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47)
-
-
48. A system comprising:
-
a plurality of modems configured to demodulate subscriber data from a subscriber link to generate a digital stream comprising the subscriber data, the subscriber data comprising voice data, signaling data, and user data, the subscriber data routable via a plurality of networks;
a plurality of digital filters configured to separate voice data from the digital stream absent a digital data link failure, each of said plurality of digital filters communicatively coupled to a corresponding modem of said plurality of modems;
a controller multiplexer communicatively coupled to said plurality of digital filters, said controller multiplexer adapted multiplex the voice data and the user data received from the plurality of digital filters absent a detected digital data link failure, said controller multiplexer communicatively coupled to a bus adapted to receive time division multiplexed signals; and
a plurality of line cards, each of said plurality of line cards communicatively coupled to a corresponding modem of said plurality of modems, each of said plurality of line cards adapted to receive the voice data routed to said plurality of line cards responsive to a detected digital data link failure, each of said plurality of line cards adapted to convert the voice data into a digital format, each of said plurality of line cards adapted to transmit the digitized voice data via the bus adapted to receive time division multiplexed signals.
-
-
49. A system comprising:
-
a plurality of modems configured to demodulate subscriber data from a subscriber link to generate a digital stream comprising the subscriber data, the subscriber data comprising voice data, signaling data, and user data, the subscriber data routable via a plurality of networks;
a plurality of digital filters configured to separate voice data from the digital stream absent a digital data link failure, each of said plurality of digital filters communicatively coupled to a corresponding modem of said plurality of modems;
a controller multiplexer communicatively coupled to said plurality of digital filters, said controller multiplexer adapted multiplex the voice data and user data received from the plurality of digital filters absent a detected digital data link failure, said controller multiplexer adapted to send the user data to a router and facilities interface for transmission to one or more external networks, said controller multiplexer communicatively coupled to a bus adapted to receive time division multiplexed voice data; and
a plurality of line cards, each of said plurality of line cards communicatively coupled to a corresponding modem of said plurality of modems, each of said plurality of line cards adapted to receive the voice data routed to said plurality of line cards responsive to a detected digital data link failure, each of said plurality of line cards adapted to convert the voice data into a digital format, each of said plurality of line cards adapted to transmit the digitized voice data via the bus adapted to receive time division multiplexed signals.
-
Specification