WO1998037641B1 - Reglage de puissance par compensation de termes croises de donnees auxiliaires enfouies dans un signal de donnees primaire - Google Patents

Reglage de puissance par compensation de termes croises de donnees auxiliaires enfouies dans un signal de donnees primaire

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Publication number
WO1998037641B1
WO1998037641B1 PCT/US1998/003578 US9803578W WO9837641B1 WO 1998037641 B1 WO1998037641 B1 WO 1998037641B1 US 9803578 W US9803578 W US 9803578W WO 9837641 B1 WO9837641 B1 WO 9837641B1
Authority
WO
WIPO (PCT)
Prior art keywords
data signal
auxiliary data
primary data
auxiliary
signal
Prior art date
Application number
PCT/US1998/003578
Other languages
English (en)
Other versions
WO1998037641A1 (fr
Filing date
Publication date
Priority claimed from US08/805,732 external-priority patent/US5940429A/en
Application filed filed Critical
Priority to AU61838/98A priority Critical patent/AU6183898A/en
Publication of WO1998037641A1 publication Critical patent/WO1998037641A1/fr
Publication of WO1998037641B1 publication Critical patent/WO1998037641B1/fr

Links

Abstract

L'invention concerne le transport d'un signal de données auxiliaire x(m) dans un signal de données primaire s(t) par enfouissement du signal de données auxiliaire sous la forme d'un bruit coloré (94). Le bruit coloré comporte un spectre simulant le spectre du signal de données primaire. En réglant le gain de la (des) porteuse(s) du signal individuel à étalement du spectre, ainsi que la puissance du bruit coloré pc(n) (107, 98), on peut obtenir le(s) flux d'informations auxiliaire(s) à n'importe quel niveau voulu au-dessous ou au-dessus d'un seuil d'interférence dans le signal de données primaire. La puissance du bruit coloré est davantage compensée (107, 98) pour tenir compte d'une corrélation croisée entre le signal de données primaire s(t) et le signal de données auxiliaire x(m) destinée à faciliter la récupération des données auxiliaires à un décodeur.
PCT/US1998/003578 1997-02-25 1998-02-24 Reglage de puissance par compensation de termes croises de donnees auxiliaires enfouies dans un signal de donnees primaire WO1998037641A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU61838/98A AU6183898A (en) 1997-02-25 1998-02-24 Cross-term compensation power adjustment of embedded auxiliary data in a primarydata signal

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/805,732 US5940429A (en) 1997-02-25 1997-02-25 Cross-term compensation power adjustment of embedded auxiliary data in a primary data signal
US08/805,732 1997-02-25

Publications (2)

Publication Number Publication Date
WO1998037641A1 WO1998037641A1 (fr) 1998-08-27
WO1998037641B1 true WO1998037641B1 (fr) 1998-11-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/003578 WO1998037641A1 (fr) 1997-02-25 1998-02-24 Reglage de puissance par compensation de termes croises de donnees auxiliaires enfouies dans un signal de donnees primaire

Country Status (3)

Country Link
US (1) US5940429A (fr)
AU (1) AU6183898A (fr)
WO (1) WO1998037641A1 (fr)

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