CODED DOMAIN NOISE CONTROL - TELLABS OPERATIONS INC

Title:

CODED DOMAIN NOISE CONTROL

Document Type and Number:

WIPO Patent Application WO2001002929

Kind Code:

A3

Abstract:

A communications system (8) transmits digital signals using a compression code comprising a plurality of parameters including a first parameter. The parameters represent an audio signal comprising a plurality of audio characteristics, including a noise characteristic. The compression code is decodable by a plurality of decoding steps. A processor (150) is responsive to the compression code to read at least the first parameter. Based on such signals, the processor adjusts the first parameter and writes the adjusted first parameter into the compression code. As a result, the noise condition is effectively managed.

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Inventors:

CHANDRAN RAVI (US)
MARCHOK DANIEL J (US)

Application Number:

PCT/US2000/018165

Publication Date:

July 19, 2001

Filing Date:

June 30, 2000

Export Citation:

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Assignee:

TELLABS OPERATIONS INC (US)
CHANDRAN RAVI (US)
MARCHOK DANIEL J (US)

International Classes:

G10L21/02; H03M7/36; H03M7/38; H04B3/20; H04B3/23; H04B14/04; H04L1/00; H04M9/08; (IPC1-7): G10L21/02

Foreign References:

US5097507A	1992-03-17
US4969192A	1990-11-06
US5680508A	1997-10-21

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