Nova Patents
ATE332003T1

Parametric multi-channel audio representation

Abstract

Multi-channel audio signals are coded into a monaural audio signal and information allowing to recover the multi-channel audio signal from the monaural audio signal and the information. The information is generated by determining a first portion of the information for a first frequency region of the multi-channel audio signal, and by determining a second portion of the information for a second frequency region of the multi-channel audio signal. The second frequency region is a portion of the first frequency region and thus is a sub-range of the first frequency region. The information is multi-layered enabling a scaling of the decoding quality versus bit rate.

Term

Term ended

Projected expiry passed 22 April 2023, 3.4 years ago.

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83 members in 11 offices

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02076588European Patent Office (EPO)A
02077869European Patent Office (EPO)A

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WO03090206A1World Intellectual Property Organization (WIPO)A1
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AU2003216682A1AustraliaA1
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AU2003219428A1AustraliaA1
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KR20040101552ARepublic of KoreaA
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EP1500082A1European Patent Office (EPO)A1
EP1500083A1European Patent Office (EPO)A1
EP1500084A1European Patent Office (EPO)A1
KR20050049549ARepublic of KoreaA
EP1554716A1European Patent Office (EPO)A1
CN1647155AChinaA
CN1647156AChinaA
CN1647157AChinaA
JP2005523479AJapanA
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CN1689070AChinaA
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JP2006503319AJapanA
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EP1500083B1European Patent Office (EPO)B1
AT332003TAustriaT
ATE332003T1This recordAustriaT1
DE60306512D1GermanyD1
EP1500082B1European Patent Office (EPO)B1
AT354161TAustriaT
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ES2268340T3SpainT3
CN1307612CChinaC
DE60311794D1GermanyD1
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EP1500084B1European Patent Office (EPO)B1
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AT385025TAustriaT
ATE385025T1AustriaT1
DE60318835D1GermanyD1
ES2300567T3SpainT3
US2008170711A1United States of AmericaA1
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EP1881486B1European Patent Office (EPO)B1
AT426235TAustriaT
ATE426235T1AustriaT1
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JP2009271554AJapanA
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