EP1364501B8

Method and system for evaluating the quality of packet-switched voice signals

Abstract

A method and apparatus for determining what level of performance must be maintained by a second communication service so as to be perceived as being of equal quality to a first communication service, especially where the second communication service is subject to additional impairments not experienced by the first communication service. In one example embodiment, the present invention is applied to determining what combinations of packet loss rate and packet delay are tolerable where a packet switched telephony service is desired to be perceived to be substantially equivalent to a traditional toll-quality non-packet-switched telephone service. Empirically derived models are used to relate user perception to objectively measurable characteristics, such as packet loss rate.

Term

Term ended

Expired 7 February 2022, 4.6 years ago.

Every citation, both ways

Citations
Document	Relation	Office
WO0033511A	Cites	World Intellectual Property Organization (WIPO)
WO9859509A	Cites	World Intellectual Property Organization (WIPO)
US5940471A	Cites	United States of America
US5940479A	Cites	United States of America
US6041294A	Cites	United States of America
US6064653A	Cites	United States of America
US6353609B1	Cites	United States of America
US6363065B1	Cites	United States of America
US6434606B1	Cites	United States of America
ITU-T STUDY GROUP 12: "Objective quality measurement of telephone-band (300-3400Hz) speech codecs" ITU-T RECOMMENDATION P.861, 27 February 1998 (1998-02-27), pages 1-33, XP002327960	Non-patent	–
ANONYMOUS: "Real=time quality measurement for telecommunication calls - by alerting subscriber of call selected to be in sample before going to operator" WPI WORLD PATENT INFORMATION DERWENT, DERWENT, GB, vol. 46, no. 92, 25 October 1992 (1992-10-25), XP002064923	Non-patent	–
ITU-T RECOMMENDATION P.862: "Perceptual evaluation of speech quality (PESQ): An objective assessment of narrow-band telephone networks and speech codecs" ITU-T STUDY GROUP 12, 23 February 2001 (2001-02-23), pages 1-21, XP002327961	Non-patent	–
RIX A W ET AL: "PESQ - the new ITU standard for end-to-end speech quality assessment" AUDIO ENGINEERING SOCIETY CONVENTION PAPER, NEW YORK, NY, US, 22 September 2000 (2000-09-22), pages 1-18, XP002262437	Non-patent	–

59 members in 10 offices

This recordMember, by publication datePriority claim

Priority claims3

Priority claims
Document	Office	Kind	Date
778186	United States of America	–	2001-02-07
77818601	United States of America	A	2001-02-07
0203767	United States of America	W	2002-02-07

Members59

Family members, oldest first
Document	Office	Kind
US6370120B1	United States of America	B1	2002-04-09
US2002097840A1	United States of America	A1	2002-07-25
CA2435667A1	Canada	A1	2002-08-15
WO02063858A1	World Intellectual Property Organization (WIPO)	A1	2002-08-15
US2002114296A1	United States of America	A1	2002-08-22
CA2435701A1	Canada	A1	2002-12-05
CA2448563A1	Canada	A1	2002-12-05
WO02096183A2	World Intellectual Property Organization (WIPO)	A2	2002-12-05
WO02098030A1	World Intellectual Property Organization (WIPO)	A1	2002-12-05
AU2002326288A1	Australia	A1	2002-12-09
WO02096183A3	World Intellectual Property Organization (WIPO)	A3	2003-03-27
EP1364501A2	European Patent Office (EPO)	A2	2003-11-26
EP1368957A1	European Patent Office (EPO)	A1	2003-12-10
BR0207000A	Brazil	A	2004-02-17
EP1396102A1	European Patent Office (EPO)	A1	2004-03-10
JP2004520776A	Japan	A	2004-07-08
BR0206997A	Brazil	A	2004-08-17
JP2004526353A	Japan	A	2004-08-26
MXPA03007019A	Mexico	A	2004-10-15
MXPA03007020A	Mexico	A	2004-10-15
JP2004535710A	Japan	A	2004-11-25
EP1396102A4	European Patent Office (EPO)	A4	2005-01-12
US2005034079A1	United States of America	A1	2005-02-10
WO2005017674A2	World Intellectual Property Organization (WIPO)	A2	2005-02-24
EP1368957A4	European Patent Office (EPO)	A4	2005-04-27
US2005141493A1	United States of America	A1	2005-06-30
US6985559B2	United States of America	B2	2006-01-10
WO2005017674A3	World Intellectual Property Organization (WIPO)	A3	2006-03-16
EP1661024A2	European Patent Office (EPO)	A2	2006-05-31
US2006126529A1	United States of America	A1	2006-06-15
EP1364501A4	European Patent Office (EPO)	A4	2006-07-26
US7085230B2	United States of America	B2	2006-08-01
US7099282B1	United States of America	B1	2006-08-29
EP1396102B1	European Patent Office (EPO)	B1	2007-04-18
AT360295T	Austria	T	2007-05-15
ATE360295T1	Austria	T1	2007-05-15
DE60219622D1	Germany	D1	2007-05-31
DE60219622T2	Germany	T2	2007-12-27
EP1661024A4	European Patent Office (EPO)	A4	2009-05-13
US2009175188A1	United States of America	A1	2009-07-09
US7653002B2	United States of America	B2	2010-01-26
EP1368957B1	European Patent Office (EPO)	B1	2010-05-19
AT468700T	Austria	T	2010-06-15
ATE468700T1	Austria	T1	2010-06-15
DE60236414D1	Germany	D1	2010-07-01
EP1364501B1	European Patent Office (EPO)	B1	2011-08-17
AT521176T	Austria	T	2011-09-15
ATE521176T1	Austria	T1	2011-09-15
US8068437B2	United States of America	B2	2011-11-29
US2012039203A1	United States of America	A1	2012-02-16
EP1364501B8This record	European Patent Office (EPO)	B8	2012-02-29
US8140980B2	United States of America	B2	2012-03-20
US2012117153A1	United States of America	A1	2012-05-10
EP1661024B1	European Patent Office (EPO)	B1	2012-07-18
US8689105B2	United States of America	B2	2014-04-01
US2014153429A1	United States of America	A1	2014-06-05
US9571633B2	United States of America	B2	2017-02-14
US9661142B2	United States of America	B2	2017-05-23
US2017310826A1	United States of America	A1	2017-10-26

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	Event	Code	Office
2020-01-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2019-10-23	Gb: european patent ceased through non-payment of renewal feeCeasedGBPC	GBPC	EP
2018-04-30	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
2015-07-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2014-04-30	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2014-01-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2014-01-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2014-01-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2013-12-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2013-12-12	Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal feeWithdrawnR119	R119	DE
2013-12-04	Patent lapsedLapsedMM4A	MM4A	IE
2013-11-22	Notification of lapseLapsedST	ST	FR
2013-10-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2013-10-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2013-09-30	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2013-09-30	Patent ceasedCeasedPL	PL	CH
2013-06-28	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
2013-06-12	Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)REGISTERED BETWEEN 20130516 AND 20130522732E	732E	GB
2013-04-30	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2013-04-25	Change of applicant/patenteeR081	R081	DE
2013-04-25	Change of applicant/patenteeR081	R081	DE
2013-04-25	Change of representativeR082	R082	DE
2013-01-23	Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)REGISTERED BETWEEN 20121227 AND 20121231732E	732E	GB
2012-09-13	No opposition filed against granted patent, or epo opposition proceedings concluded without decisionGrantedR097	R097	DE
2012-07-31	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
2012-07-25	No opposition filedOpposition26N	26N	EP
2012-06-29	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2012-06-29	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
2012-06-22	No opposition filed within time limitOppositionORIGINAL CODE: 0009261PLBE	PLBE	EP
2012-06-22	Information on the status of an ep patent application or granted ep patentGrantedSTATUS: NO OPPOSITION FILED WITHIN TIME LIMITSTAA	STAA	EP
2012-05-31	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
2012-04-30	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
2012-04-30	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
2012-04-30	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
2012-04-30	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
2012-03-30	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2012-03-30	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
2012-02-29	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2012-02-29	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2012-02-29	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2012-02-15	Deletion acc. to par. 5 (withdrawal of the translation of the ep patent)MK05	MK05	AT
2012-01-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2012-01-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2012-01-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2012-01-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2011-12-07	Discontinued in the netherlands as no translation has been filedVDEP	VDEP	NL
2011-10-13	Dpma publication of mentioned ep patent grantGrantedR096	R096	DE
2011-10-05	Party data changed (patent owner data changed or rights of a patent transferred)RAP2	RAP2	EP
2011-09-14	European patents granted designating irelandGrantedFG4D	FG4D	IE
2011-08-31	European patent takes effect as a national patent in ch/liEP	EP	CH
2011-08-17	Designated contracting statesAK	AK	EP
2011-08-17	European patent grantedGrantedFG4D	FG4D	GB
2011-08-10	Party data changed (applicant data changed or rights of an application transferred)RAP1	RAP1	EP
2011-07-15	(expected) grantORIGINAL CODE: 0009210GRAA	GRAA	EP
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2008-07-23	Party data changed (applicant data changed or rights of an application transferred)RAP1	RAP1	EP
2006-12-13	First examination report despatched17Q	17Q	EP
2006-07-26	Supplementary search report drawn up and despatchedA4	A4	EP
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2003-11-26	Request for examination filed17P	17P	EP
2003-11-26	Designated contracting statesAK	AK	EP
2003-11-26	Request for extension of the european patentAX	AX	EP
2003-10-10	Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI	PUAI	EP

Method and system for evaluating the quality of packet-switched voice signals

Abstract

Term

Priority claims3

Members59

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Titles3

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Designated states20