G - Physics – 10 – L
Patent
G - Physics
10
L
G10L 19/00 (2006.01) H04Q 11/04 (2006.01) H04Q 7/30 (2006.01) H04Q 7/22 (2006.01)
Patent
CA 2290307
A universal CODEC, in one implementation, comprised of multiple CODECs in a bank, each CODEC capable of encoding/decoding speech transmissions in a different format, replaces a customary installation of two CODECs in a BSC/MSC. Within the universal CODEC, a bypass feature is incorporated that is capable of automatically selecting the individual CODEC having a format that is appropriate to a received signal. A BSC/MSC with a universal CODEC may receive any encoded voice signal and convert to the format appropriate to the receiving BSC/MSC. A second implementation of the universal CODEC utilizes multiple software applications and shares a common digital signal processor (DSP) core. Utilizing an automatic bypass feature and low frequency, in-band signals, the universal CODEC provides means to consume less bandwidth while transmitting speech signals only in compressed format through packet switching networks.
Nortel Networks Corporation
Nortel Networks Limited
Smart & Biggar
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