CONSTRAINED FILTER ENCODING OF POLYPHONIC SIGNALS - Patent 1639580

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EP 1 639 580 A1

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(43)	Date of publication:
	29.03.2006 Bulletin 2006/13

(21)	Application number: 04809080.7

(22)	Date of filing: 15.12.2004

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International Patent Classification (IPC):

G10L 19/00^(2000.01)

G10L 19/14^(2000.01)

(86)	International application number:
	PCT/SE2004/001907

(87)	International publication number:
	WO 2005/059901 (30.06.2005 Gazette 2005/26)

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

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Priority:

19.12.2003 SE 0303499
20.02.2004 SE 0400415

(71)	Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (publ)
	164 83 Stockholm (SE)

(72)	Inventors:
	BRUHN, Stefan S-192 67 SOLLENTUNA (SE) JOHANSSON, Ingemar S-976 32 Lule (SE) TALEB, Anisse S-164 33 Kista (SE) SANDGREN, Patrik S-192 67 Sollentuna (SE)

(74)	Representative: Stenborg, Anders Vilhelm et al
	Aros Patent AB, P.O. Box 1544 751 45 Uppsala 751 45 Uppsala (SE)

(54)	CONSTRAINED FILTER ENCODING OF POLYPHONIC SIGNALS