Transcoding device provided with a derivation

Title:

Transcoding device provided with a derivation

Document Type and Number:

WIPO Patent Application WO1998024255

Kind Code:

A3

Abstract:

Transcoder apparatus is designed to transcode a receive signal (UR) into a transmit signal (UE). For this purpose, it includes a signaling transmitting member (14) for producing a signaling message and for introducing it into the transmit signal by stealing bits from said signal. According to the invention, the signaling transmitter member (14) also comprises a tone generator (15) to add a tone signal (UTS) to the transmit signal (UE) prior to applying the signaling message to said transmit signal.

Inventors:

LE STRAT EVELYNE (FR)
FAUCONNIER DENIS (FR)
NAVARRO WILLIAM (FR)

Application Number:

PCT/FR1997/002133

Publication Date:

July 23, 1998

Filing Date:

November 27, 1997

Export Citation:

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Assignee:

NORTEL MATRA CELLULAR (FR)
LE STRAT EVELYNE (FR)
FAUCONNIER DENIS (FR)
NAVARRO WILLIAM (FR)

International Classes:

H04W88/18; (IPC1-7): H04Q7/30

Domestic Patent References:

WO1996019907A1	1996-06-27
WO1993009607A1	1993-05-13

Foreign References:

US5533121A	1996-07-02
US5295178A	1994-03-15

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