Dual-rate single band communication system

Details Dual-rate single band communication system Dual-rate single band communication system

2002-12-16

2009-10-20

Perilla, Jason M. (Department: 2611)

Pulse or digital communications

Receivers

Angle modulation

C375S219000, C375S226000, C375S229000, C375S316000

Reexamination Certificate

active

07606330

ABSTRACT:
A system, method, and apparatus for a multiple data rate communication system is presented herein. The communication system receives data samples that are either sampled at a narrowband rate or a wideband rate and provides various functions and services, such as echo cancellation, DTMF detection and generation, and call discrimination. For wideband signals, a down-sampled signal is provided for each of the foregoing function and service. The output of the function or services is then recombined with the wideband signal.

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patent: 6865587 (2005-03-01), Kovacevic et al.
patent: 2001/0033583 (2001-10-01), Rabenko et al.
patent: 2003/0076888 (2003-04-01), Daniell

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