Apparatus and method for tandem-free vocoder operation...

H - Electricity – 04 – W

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H04W 4/18 (2009.01) H04W 92/02 (2009.01) G10L 19/14 (2006.01)

Patent

CA 2503580

Tandem-free vocoder operations (TFO) between non-compatible communication systems may be enabled through hardware modifications at communication elements within each system. In one aspect, each infrastructure entity in System 1 comprises an intra-system TFO Frame Generator (G1), an intra-system TFO Frame Extractor (E1) and a TFO Frame Extractor (E2) of System 2, which is non-compatible to System 1. Each infrastructure entity in System 2 comprises an intra-system TFO Frame Generator (G2), an intra-system TFO Frame Extractor (E2) and a TFO Frame Extractor (E1) of System 1. In an embodiment, intersystem TFO Frame Generators (G1, G2) are also provided. In another embodiment, intersystem or intrasystem parameters are used to determine the TFO Frame Content (820, 830), responsive to determining the source type of the TFO frame being punctured into a PCM stream (812).

L'invention concerne la mise en oeuvre d'opérations de vocodeur sans tandem (TFO) entre des systèmes de communication incompatibles, pouvant être activées à l'aide de modifications du matériel au niveau d'éléments de communication de chaque système. Dans un mode de réalisation, chaque entité d'infrastructure du système 1 comprend un genérateur de trame G¿1? TFO intrasystème, un extracteur de trame E¿1? TFO intrasystème, et un extracteur de trame E¿2? TFO du système 2, qui est incompatible avec le système 1. Chaque entité d'infrastructure du système 2 comprend un générateur de trame G¿2 ?TFO intrasystème, un extracteur de trame E¿2 ?TFO intrasystème, et un extracteur de trame E¿1?TFO du système 1.

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