Switchboard for dual-rate single-band communication system

Details Switchboard for dual-rate single-band communication system Switchboard for dual-rate single-band communication system

2002-12-16

2008-08-05

Smith, Creighton H (Department: 2614)

Telephonic communications

Subscriber line or transmission line interface

C379S093090

Reexamination Certificate

active

07409056

ABSTRACT:
A switchboard device and methods of operation of same are disclosed. Embodiments of the invention may provide a flexible means of interconnecting wideband and narrowband communications interfaces, where wideband communications interfaces may transfer wideband data sampled at a higher sampling rate, and narrowband communication interfaces may transfer narrowband data sampled at a lower sampling rate. Data streams sampled at different sampling rates can be combined and the sampling rate of the result adjusted as needed by the destination interface. Methods of operating embodiments of the present invention are included. An additional aspect of the present invention may include machine-readable storage having stored thereon a computer program having a plurality of code sections executable by a machine for causing the machine to perform the foregoing.

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Mermelstein, P; “G.722, A New CCITT Coding Standard for Digital Transmission of Wideband Audio Signals”, IEEE Communications Magazine, IEEE Service Center, Piscataway, US; vol. 26, No. 1, Jan. 1988 (Jan. 1988).

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