EP2633520B1 - Parametric encoder for encoding a multi-channel audio signal - Google Patents

Parametric encoder for encoding a multi-channel audio signal Download PDF

Info

Publication number
EP2633520B1
EP2633520B1 EP10859153.8A EP10859153A EP2633520B1 EP 2633520 B1 EP2633520 B1 EP 2633520B1 EP 10859153 A EP10859153 A EP 10859153A EP 2633520 B1 EP2633520 B1 EP 2633520B1
Authority
EP
European Patent Office
Prior art keywords
audio signal
parameter
encoding
transformed
channel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP10859153.8A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2633520A1 (en
EP2633520A4 (en
Inventor
Christof Faller
Lei Miao
Yue Lang
Jianfeng Xu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Publication of EP2633520A1 publication Critical patent/EP2633520A1/en
Publication of EP2633520A4 publication Critical patent/EP2633520A4/en
Application granted granted Critical
Publication of EP2633520B1 publication Critical patent/EP2633520B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/0204—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders using subband decomposition

Definitions

  • the present invention relates to audio coding.
  • Parametric stereo or multi-channel audio coding uses spatial cues to synthesize down-mix - usually mono or stereo - audio signals to signals with more channels.
  • the down-mix audio signals result from a superposition of a plurality of audio channel signals of a multi-channel audio signal, e.g. of a stereo audio signal.
  • These less channels are waveform coded and side information, i.e. the spatial cues, relating to the original signal channel relations is added as encoding parameters to the coded audio channels.
  • the decoder uses this side information to re-generate the original number of audio channels based on the decoded waveform coded audio channels.
  • a basic parametric stereo coder may use inter-channel level differences (ILD) as a cue needed for generating the stereo signal from the mono down-mix audio signal. More sophisticated coders may also use the inter-channel coherence (ICC), which may represent a degree of similarity between the audio channel signals, i.e. audio channels. Furthermore, when coding binaural stereo signals e.g. for 3D audio or headphone based surround rendering, also an inter-channel phase difference (IPD) may play a role to reproduce phase/delay differences between the channels.
  • IPD inter-channel phase difference
  • ICC cues may be relevant for most audio and music contents to re-generate ambience, stereo reverb, source width, and other perceptions related to spatial impression as described in J. Blauert, Spatial Hearing: The Psychophysics of Human Sound Localization, The MIT Press, Cambridge, Massachusetts, USA, 1997 .
  • Coherence synthesis may be implemented by using de-correlators in frequency domain as described in E. Schuijers, W. Oomen, B. den Brinker, and J. Breebaart, "Advances in parametric coding for high-quality audio," in Preprint 114th Conv. Aud. Eng. Soc., Mar. 2003 .
  • the known synthesis approaches for synthesizing multi-channel audio signals may suffer from an increased complexity.
  • the use of ICC parameters e.g. in addition to other parameters, such as inter-channel level differences (ICLDs) and inter-channel phase differences (ICPDs), may increase a bitrate overhead.
  • ICLDs inter-channel level differences
  • US 2005/180579 A1 discloses a scheme for stereo and multi-channel synthesis of inter-channel correlation (ICC) (normalized cross-correlation) cues for parametric stereo and multi-channel coding.
  • ICC inter-channel correlation
  • the scheme synthesizes ICC cues such that they approximate those of the original.
  • diffuse audio channels are generated and mixed with the transmitted combined (e.g., sum) signal(s).
  • the diffuse audio channels are preferably generated using relatively long filters with exponentially decaying Gaussian impulse responses. Such impulse responses generate diffuse sound similar to late reverberation.
  • inter-channel level difference ICLD
  • inter-channel time difference ICTD
  • ICC synthesis are all carried out in the domain of a single short-time Fourier transform (STFT), including the filtering for diffuse sound generation.
  • STFT short-time Fourier transform
  • WO 2003/219130 A1 discloses a combination device that includes: a detection unit that detects active coded bitstreams that are effective coded bitstreams from a plurality of coded bitstreams within a predetermined time period; a first combining unit that combines, from a plurality of downmix sub-streams included in the coded bitstreams, only downmix sub-streams included in the active coded bitstreams so as to generate a combined downmix sub-stream; and a second combining unit that combines, from a plurality of parameter sub-streams included in the coded bitstreams, only parameter sub-streams included in the active coded bitstreams so as to generate a combined parameter sub-stream.
  • US 2003/219130 A1 discloses an auditory scene synthesized from a mono audio signal by modifying, for each critical band, an auditory scene parameter (e.g., an inter-aural level difference (ILD) and/or an inter-aural time difference (ITD)) for each sub-band within the critical band, where the modification is based on an average estimated coherence for the critical band.
  • an auditory scene parameter e.g., an inter-aural level difference (ILD) and/or an inter-aural time difference (ITD)
  • ILD inter-aural level difference
  • ITD inter-aural time difference
  • a goal to be achieved by the present invention is to reduce complexity of a parametric coding scheme. This goal is achieved by the features of the independent claims. Further embodiments are apparent from the description, the drawings and from the dependent claims.
  • the invention is based on the finding that combining parametric encoding parameters such as ICC parameters may reduce bit rate required for representing the parameters and thus may reduce complexity of the resulting parametric encoding scheme.
  • the combined encoding parameters may be applied e.g. only to a certain frequency region in order to improve an audio quality for e.g. speech whereby the complexity and the memory requirements may further be reduced.
  • the first and second encoding parameter may be an inter-channel phase difference.
  • the first and second encoding parameter may be an inter-channel coherence.
  • the first and second encoding parameter may be an inter-channel intensity difference.
  • the first and second encoding parameter may be an inter-channel level difference.
  • the parameter generator is configured to generate the first encoding parameter and the second encoding parameter upon a basis of a multiplication of values of the first transformed audio signal and of the second transformed audio signal.
  • the parameter combiner is configured to determine a weighted average of the first encoding parameter and the second encoding parameter using powers of the a first transformed audio signal and the second transformed signal at the certain frequency as weights to obtain the combined encoding parameter.
  • the parameter combiner is configured to determine a weighted average of the first encoding parameter and the second encoding parameter using a frequency-dependent weight to obtain the combined encoding parameter.
  • the parameter generator is configured to generate a plurality of encoding parameters from the first transformed audio signal and from the second transformed audio signal at a plurality of frequencies, and wherein the parameter combiner is configured to combine the plurality of the encoding parameters to obtain the combined encoding parameter.
  • the parametric encoder further comprises a signal combiner for combining the first transformed audio signal and the second transformed audio signal to obtain a down-mix signal.
  • the parametric encoder further comprises an inverse transformer for inversely transforming a combination of the first transformed audio signal and the second transformed audio signal to obtain a down-mix audio signal.
  • the invention relates to a method for parametrically encoding a multi-channel audio signal having a first audio signal and a second audio signal, the method having transforming the first audio signal into frequency domain to obtain a first transformed audio signal, and transforming the second audio signal into frequency domain to obtain a second transformed audio signal, generating a first encoding parameter from the first transformed audio signal and from the second transformed audio signal at a first frequency, and generating a second encoding parameter from the first transformed audio signal and from the second transformed audio signal at a second frequency, and combining the first encoding parameter and the second encoding parameter to obtain a combined encoding parameter.
  • Fig. 1 shows a diagram of a parametric encoder for encoding a multi-channel audio signal having a first audio signal, x1, and a second audio signal, x2, according to an implementation form.
  • the parametric encoder comprises a transformer 101 for transforming the first audio signal into frequency domain to obtain a first transformed audio signal, and for transforming the second audio signal into frequency domain to obtain a second transformed audio signal.
  • the transformer 101 may comprise a first transformer 103 for transforming the first audio signal, and a second transformer 105 for transforming the second audio signal.
  • the transformer 101 and/or the transformers 103, 105 may be Fourier transformers, by way of example.
  • the first and second transformed audio signals are provided to a parameter generator 107 for generating a first encoding parameter from the first transformed signal and from the second transformed audio signal at a first frequency, e.g. at the i-th frequency or in the i-th band.
  • the i-th band or "band i" refer to a frequency band i at or in which the parameter generator 107 generates the respective encoding parameter from the first and second transformed signal, and is also referred to as parameter band i.
  • the parameter generator 107 is further configured to generate a second encoding parameter from the first and second transformed audio signal at a second frequency or in a second band.
  • the first and the second encoding parameters are provided to the parameter combiner 109 which combines the first encoding parameter and the second encoding parameter to obtain a combined encoding parameter according to a principle described herein.
  • the parameter combiner 109 may separately obtain encoding parameters for different parameter bands.
  • the e.g. stereo input audio channels x1 and x2 are converted to a plurality of sub-bands or parameter bands.
  • the corresponding ICC parameters may be estimated.
  • One or more ICC parameter combining processes e.g. one of the processes according to the equations (1)-(4), may be applied to the ICC parameters of all or subsets of parameter bands, to compute the combined ICC parameters.
  • At least one combined ICC parameter may be put into a bit stream 111 or transmitted to an audio decoder which is not depicted in Fig. 1 .
  • the encoding parameter may be any encoding parameter or of any encoding parameter type used for parametric encoding, e.g. inter-channel phase difference or inter-channel intensity difference or an inter-channel level difference or the like, and that the encoder may be adapted to produce combined encoding parameters according one, some or all of the aforementioned encoding parameter types and to include combined encoding parameters of different types in the bitstream 111 as side information.
  • the parametric encoder of Fig, 1 may form a parametric stereo encoder which estimates in parameter bands perceptual spatial cue parameters, such as ICLD, ICPD, and/or ICC. If the parameter band index is i, then the estimated parameters in that band are denoted ICLD(i), ICPD(i), and ICC(i). The left and right signal power in a parameter band are denoted P1(i) and P2(i), respectively.
  • ICC ⁇ i ⁇ I g i ⁇ P 1 i + P 2 i ⁇ ICC i ⁇ i ⁇ I g i ⁇ P 1 i + P 2 i
  • g i is a weight given to frequency (parameter band) i.
  • ICC ⁇ i ⁇ I g i ⁇ ICC i ⁇ i ⁇ I g i
  • a single full-band ICC performs surprisingly well.
  • the combined ICC is computed using all parameter bands, i.e. I contains all parameter band indices.
  • the speech quality may be improved by only using ICC in a limited frequency range.
  • ICC parameter bands between 500 Hz and 1.5 kHz
  • less artifacts occur.
  • the combined ICC is computed using only parameter bands between 500 Hz and 1.5 kHz, i.e. I contains only those indices.
  • the parametric encoder shown in Fig. 1 may estimate one or more combined ICC parameters by:
  • Fig. 2 shows a block diagram of a parametric encoder for decoding a down-mix audio signal according to an implementation form.
  • the down-mix signal may be provided by the parametric encoder as shown e.g. in Fig. 1 .
  • the parametric decoder comprises a transformer 201 for transforming the down-mix audio signal, as, to obtain a transformed down-mix audio signal having a certain frequency, e.g. an i-th frequency of a plurality of frequencies, or correspondingly a certain band, e.g. an i-th band of a plurality of bands.
  • the parametric decoder further comprises a provider 203 for providing a frequency-specific encoding parameter associated with the certain frequency.
  • the frequency-specific encoding parameter may be derived from the combined encoding parameter. However, the frequency-specific encoding parameter may correspond to the combined encoding parameter.
  • the parametric decoder further comprises an audio synthesizer 205, e.g. a stereo synthesizer, for synthesizing a first audio signal and a second audio signal at the certain frequency or in the certain band from the transformed down-mix audio signal provided by the transformer 201 using the frequency-specific encoding parameter as provided by the provider 203.
  • an audio synthesizer 205 e.g. a stereo synthesizer
  • the transformer 201 may be a Fourier transformer, wherein the audio synthesizer may synthesize the first and the second audio signal in frequency domain.
  • the output signal provided by the synthesizer 205 may correspond to the first and second audio channel signal.
  • the parametric encoder may further comprise an inverse transformer 207 for inversely transforming the first and second audio channel signal in time domain in order to obtain a first and second audio channel signal, x1 and x2, in time domain.
  • the parametric decoder shown in Fig. 1 uses for all parameter bands, or a subset J thereof, the combined ICC parameter or a modified version thereof.
  • One can use the same subset of parameter bands at the decoder as at the encoder, i.e. J I, or a different subset.
  • the parametric decoder may receive the down-mix signal s and the stereo parameters, i.e. encoding parameters, amongst which at least one combined ICC parameter may be received.
  • the stereo parameters i.e. encoding parameters
  • Combined ICC to Band ICC Conversion when one combined ICC is used, combined ICC is applied to all parameter bands. Or, if the combined ICC was estimated only for a subset of bands, J, then the decoder may apply the combined ICC to all bands, to the same subset, or to another subset, e.g. a subset of the same subset.
  • the decoder may apply the combined ICCs to parameter bands corresponding to the frequency regions from which the combined ICCs were estimated.
  • Fig. 3 shows a diagram of a method for parametrically encoding a multi-channel audio signal having the first and the second audio signal as mentioned above.
  • the method comprises transforming 301 the first and second audio signal into frequency domain to obtain a first and second transformed audio signal, generating 303 a first encoding parameter from the first and second transformed audio signal at a first frequency, and a second encoding parameter from the first and second transformed audio signal at a second frequency, and combining 305 the first and second encoding parameter to obtain a combined encoding parameter.
  • the method depicted in Fig. 3 may be performed by the parametric encoder as shown in Fig. 1 .
  • Fig. 4 shows a block diagram of a method for parametrically decoding a down-mix audio signal upon a basis of a combined encoding parameter.
  • the down-mix audio signal may represent a combination, e.g. a superposition, of a first and second audio signal.
  • the combined encoding parameter may have features as described above.
  • the method comprises transforming 401 the down-mix audio signal to obtain a transformed down-mix audio signal having a certain frequency, providing 403 a frequency-specific encoding parameter associated with the certain frequency upon the basis of the combined encoding parameter, according to the principle described herein, and synthesizing 405 the first and second audio signal at the certain frequency from the transformed down-mix audio signal and from the frequency-specific encoding parameter.
  • the method depicted in Fig. 4 may be performed by the parametric decoder as shown in Fig. 2 .
  • the parametric decoder shown in Fig. 2 may be a parametric stereo decoder adapted for

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Stereophonic System (AREA)
EP10859153.8A 2010-11-03 2010-11-03 Parametric encoder for encoding a multi-channel audio signal Not-in-force EP2633520B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2010/078358 WO2012058805A1 (en) 2010-11-03 2010-11-03 Parametric encoder for encoding a multi-channel audio signal

Publications (3)

Publication Number Publication Date
EP2633520A1 EP2633520A1 (en) 2013-09-04
EP2633520A4 EP2633520A4 (en) 2013-09-04
EP2633520B1 true EP2633520B1 (en) 2015-09-02

Family

ID=46023928

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10859153.8A Not-in-force EP2633520B1 (en) 2010-11-03 2010-11-03 Parametric encoder for encoding a multi-channel audio signal

Country Status (4)

Country Link
EP (1) EP2633520B1 (es)
CN (1) CN102844808B (es)
ES (1) ES2553398T3 (es)
WO (1) WO2012058805A1 (es)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020193865A1 (en) * 2019-03-28 2020-10-01 Nokia Technologies Oy Determination of the significance of spatial audio parameters and associated encoding
RU2773636C2 (ru) * 2017-08-10 2022-06-06 Хуавэй Текнолоджиз Ко., Лтд. Способ кодирования стереопараметров временной области и соответствующий продукт
US11727943B2 (en) 2017-08-10 2023-08-15 Huawei Technologies Co., Ltd. Time-domain stereo parameter encoding method and related product

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102739320B (zh) * 2012-06-16 2014-11-05 天地融科技股份有限公司 音频数据传输方法、系统、传输装置及电子签名工具
WO2014023443A1 (en) 2012-08-10 2014-02-13 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Encoder, decoder, system and method employing a residual concept for parametric audio object coding
JP6013646B2 (ja) 2013-04-05 2016-10-25 ドルビー・インターナショナル・アーベー オーディオ処理システム
US9838819B2 (en) * 2014-07-02 2017-12-05 Qualcomm Incorporated Reducing correlation between higher order ambisonic (HOA) background channels
RU2763374C2 (ru) * 2015-09-25 2021-12-28 Войсэйдж Корпорейшн Способ и система с использованием разности долговременных корреляций между левым и правым каналами для понижающего микширования во временной области стереофонического звукового сигнала в первичный и вторичный каналы
CN107452387B (zh) * 2016-05-31 2019-11-12 华为技术有限公司 一种声道间相位差参数的提取方法及装置
GB2576769A (en) * 2018-08-31 2020-03-04 Nokia Technologies Oy Spatial parameter signalling
CN110740404B (zh) * 2019-09-27 2020-12-25 广州励丰文化科技股份有限公司 一种音频相关性的处理方法及音频处理装置
CN112731289B (zh) * 2020-12-10 2024-05-07 深港产学研基地（北京大学香港科技大学深圳研修院） 一种基于加权模板匹配的双耳声源定位方法和装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7583805B2 (en) * 2004-02-12 2009-09-01 Agere Systems Inc. Late reverberation-based synthesis of auditory scenes
US7006636B2 (en) * 2002-05-24 2006-02-28 Agere Systems Inc. Coherence-based audio coding and synthesis
EP1671316B1 (en) * 2003-09-29 2007-08-01 Koninklijke Philips Electronics N.V. Encoding audio signals
WO2008132850A1 (ja) * 2007-04-25 2008-11-06 Panasonic Corporation ステレオ音声符号化装置、ステレオ音声復号装置、およびこれらの方法
CN100571043C (zh) * 2007-11-06 2009-12-16 武汉大学 一种空间参数立体声编解码方法及其装置
US8060042B2 (en) * 2008-05-23 2011-11-15 Lg Electronics Inc. Method and an apparatus for processing an audio signal
RU2495503C2 (ru) * 2008-07-29 2013-10-10 Панасоник Корпорэйшн Устройство кодирования звука, устройство декодирования звука, устройство кодирования и декодирования звука и система проведения телеконференций
CN102016982B (zh) * 2009-02-04 2014-08-27 松下电器产业株式会社 结合装置、远程通信系统以及结合方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2773636C2 (ru) * 2017-08-10 2022-06-06 Хуавэй Текнолоджиз Ко., Лтд. Способ кодирования стереопараметров временной области и соответствующий продукт
US11727943B2 (en) 2017-08-10 2023-08-15 Huawei Technologies Co., Ltd. Time-domain stereo parameter encoding method and related product
WO2020193865A1 (en) * 2019-03-28 2020-10-01 Nokia Technologies Oy Determination of the significance of spatial audio parameters and associated encoding

Also Published As

Publication number Publication date
EP2633520A1 (en) 2013-09-04
CN102844808B (zh) 2016-01-13
CN102844808A (zh) 2012-12-26
WO2012058805A1 (en) 2012-05-10
EP2633520A4 (en) 2013-09-04
ES2553398T3 (es) 2015-12-09

Similar Documents

Publication Publication Date Title
EP2633520B1 (en) Parametric encoder for encoding a multi-channel audio signal
US10244319B2 (en) Audio decoder for audio channel reconstruction
EP2834813B1 (en) Multi-channel audio encoder and method for encoding a multi-channel audio signal
EP2702776B1 (en) Parametric encoder for encoding a multi-channel audio signal
US9082396B2 (en) Audio signal synthesizer
JP2015528926A (ja) マルチチャネルをダウンミックス／アップミックスする場合のため一般化された空間オーディオオブジェクト符号化パラメトリック概念のデコーダおよび方法
WO2013029225A1 (en) Parametric multichannel encoder and decoder
JP2017058696A (ja) インターチャネル差分推定方法及び空間オーディオ符号化装置

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20130530

A4 Supplementary search report drawn up and despatched

Effective date: 20130724

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAX Request for extension of the european patent (deleted)
17Q First examination report despatched

Effective date: 20140414

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RIC1 Information provided on ipc code assigned before grant

Ipc: G10L 19/02 20130101ALN20150218BHEP

Ipc: G10L 19/008 20130101ALI20150218BHEP

Ipc: G10L 19/00 20130101AFI20150218BHEP

Ipc: G10L 13/00 20060101ALI20150218BHEP

INTG Intention to grant announced

Effective date: 20150311

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 747064

Country of ref document: AT

Kind code of ref document: T

Effective date: 20150915

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 6

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602010027288

Country of ref document: DE

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2553398

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20151209

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 747064

Country of ref document: AT

Kind code of ref document: T

Effective date: 20150902

REG Reference to a national code

Ref country code: NL

Ref legal event code: FP

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151202

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151203

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150902

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150902

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150902

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150902

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150902

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150902

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150902

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150902

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150902

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160102

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150902

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160104

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150902

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602010027288

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151103

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150902

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20151130

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20151130

26N No opposition filed

Effective date: 20160603

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150902

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150902

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20151103

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150902

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150902

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150902

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20101103

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150902

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150902

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150902

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150902

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150902

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150902

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20201015

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20201020

Year of fee payment: 11

Ref country code: GB

Payment date: 20201021

Year of fee payment: 11

Ref country code: ES

Payment date: 20201208

Year of fee payment: 11

Ref country code: FR

Payment date: 20201013

Year of fee payment: 11

Ref country code: IT

Payment date: 20201013

Year of fee payment: 11

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602010027288

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: MM

Effective date: 20211201

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20211103

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20211201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20211103

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220601

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20211130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20211103

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20230214

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20211104