Voice and data exchange over a packet based network
Inactive Publication Date: 2006-06-22
AVAGO TECH WIRELESS IP SINGAPORE PTE
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[0002] The present invention relates generally to telecommunications systems, and more
Problems solved by technology
Heretofore, an integrated system for interfacing various telephony devices over packet based
Method used
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Embodiment Construction
An Embodiment of a Signal Processing System
[0053] In a preferred embodiment of the present invention, a signal processing system is employed to interface telephony devices with packet based networks. Telephony devices include, by way of example, analog and digital phones, ethernet phones, Internet Protocol phones, fax machines, data modems, cable modems, interactive voice response systems, PBXs, key systems, and any other conventional telephony devices known in the art. The described preferred embodiment of the signal processing system can be implemented with a variety of technologies including, by way of example, embedded communications software that enables transmission of information, including voice, fax and modem data over packet based networks. The embedded communications software is preferably run on programmable digital signal processors (DSPs) and is used in gateways, cable modems, remote access servers, PBXs, and other packet based network appliances.
[0054] An exemplary...
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Abstract
A signal processing system which discriminates between voice signals and data signals modulated by a voiceband carrier. The signal processing system includes a voice exchange, a data exchange and a call discriminator. The voice exchange is capable of exchanging voice signals between a switched circuit network and a packet based network. The signal processing system also includes a data exchange capable of exchanging data signals modulated by a voiceband carrier on the switched circuit network with unmodulated data signal packets on the packet based network. The data exchange is performed by demodulating data signals from the switched circuit network for transmission on the packet based network, and modulating data signal packets from the packet based network for transmission on the switched circuit network. The call discriminator is used to selectively enable the voice exchange and data exchange.
Description
CROSS-REFERENCE TO RELATED APPLICATION(S) [0001] The present application is a continuation of U.S. patent application Ser. No. 09 / 522,184, filed on Mar. 9, 2000, which is a continuation-in-part of co-pending patent application Ser. No. 09 / 493,458, filed Jan. 28, 2000, which is a continuation-in-part of co-pending application Ser. No. 09 / 454,219, filed Dec. 9, 1999, priority of each application which is hereby claimed under 35 U.S.C. § 120. The present application also claims priority under 35 U.S.C. § 119(e) to provisional Application Nos. 60 / 154,903, filed Sep. 20, 1999; Application No. 60 / 156,266, filed Sep. 27, 1999; Application No. 60 / 157,470, filed Oct. 1, 1999; Application No. 60 / 160,124, filed Oct. 18, 1999; Application No. 60 / 161,152, filed Oct. 22, 1999; Application No. 60 / 162,315, filed Oct. 28, 1999; Application No. 60 / 163,169, filed Nov. 2, 1999; Application No. 60 / 163,170, filed Nov. 2, 1999; Application No. 60 / 163,600; filed Nov. 4, 1999; Application No. 60 / 164,379, fi...
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