H - Electricity – 04 – Q
Patent
H - Electricity
04
Q
H04Q 11/04 (2006.01) H04B 1/66 (2006.01) H04J 3/16 (2006.01) H04J 3/17 (2006.01) H04L 12/56 (2006.01)
Patent
CA 2046369
The high performance multiplexed transmission system of this invention is configured by a sound coding unit for coding voice input information by separating it into a core information part for assuring the minimum acceptable sound quality and a supplementary information part discardable in stages per the transmission priorities; a silence section detecting unit for detecting silence sections of voice input information; and a multiplexing unit for multiplexing only the information synchronizing with the correspondent's coder for the voice channels from which no sound is detected, or first core information part and second the supplementary information part from the ones with the highest priorities in stages in fixed length frames, for discarding the supplementary information parts which cannot be multiplexed because of a band deficiency.
Abiru Ken-Ichi
Aramaki Takahiro
Fujino Naoji
Matsuda Takao
Nishiyama Naomi
Fetherstonhaugh & Co.
Fujitsu Limited
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