EP1091349A3 - Method and apparatus for noise reduction during speech transmission - Google Patents

Method and apparatus for noise reduction during speech transmission Download PDF

Info

Publication number
EP1091349A3
EP1091349A3 EP00250301A EP00250301A EP1091349A3 EP 1091349 A3 EP1091349 A3 EP 1091349A3 EP 00250301 A EP00250301 A EP 00250301A EP 00250301 A EP00250301 A EP 00250301A EP 1091349 A3 EP1091349 A3 EP 1091349A3
Authority
EP
European Patent Office
Prior art keywords
noise
layer
filter
during speech
speech transmission
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.)
Granted
Application number
EP00250301A
Other languages
German (de)
French (fr)
Other versions
EP1091349A2 (en
EP1091349B1 (en
Inventor
Dietmar Dr. Ruwisch
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.)
RUWISCH, DIETMAR, DR.
Original Assignee
Cortologic AG
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 Cortologic AG filed Critical Cortologic AG
Publication of EP1091349A2 publication Critical patent/EP1091349A2/en
Publication of EP1091349A3 publication Critical patent/EP1091349A3/en
Application granted granted Critical
Publication of EP1091349B1 publication Critical patent/EP1091349B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0208—Noise filtering
    • 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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/27—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the analysis technique
    • G10L25/30—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the analysis technique using neural networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Multimedia (AREA)
  • Human Computer Interaction (AREA)
  • Quality & Reliability (AREA)
  • Computational Linguistics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Telephone Function (AREA)
  • Noise Elimination (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Abstract

The method involves using a multi-layer self-organising neural network with feedback. A minima detection layer, a reaction layer, a diffusion layer and an integration layer define a filter function (F(f,T)) for noise filtering. The filter function is used to convert a spectrum B(f,T) free of noise, into a noise-free speech signal (y(t)) by inverse Fourier transformation. The signal delay caused by processing the signal is so short that the filter can operate in real-time for telecommunication. All neurons are supplied with an externally set parameter K, the size of which defines the degree of noise suppression of the whole filter. An Independent claim is included for an apparatus for noise suppression during speech transmission.
EP00250301A 1999-10-06 2000-09-08 Method and apparatus for noise reduction during speech transmission Expired - Lifetime EP1091349B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19948308A DE19948308C2 (en) 1999-10-06 1999-10-06 Method and device for noise suppression in speech transmission
DE19948308 1999-10-06

Publications (3)

Publication Number Publication Date
EP1091349A2 EP1091349A2 (en) 2001-04-11
EP1091349A3 true EP1091349A3 (en) 2002-01-02
EP1091349B1 EP1091349B1 (en) 2005-02-09

Family

ID=7924812

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00250301A Expired - Lifetime EP1091349B1 (en) 1999-10-06 2000-09-08 Method and apparatus for noise reduction during speech transmission

Country Status (6)

Country Link
US (1) US6820053B1 (en)
EP (1) EP1091349B1 (en)
AT (1) ATE289110T1 (en)
CA (1) CA2319995C (en)
DE (2) DE19948308C2 (en)
TW (1) TW482993B (en)

Families Citing this family (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8606851B2 (en) 1995-06-06 2013-12-10 Wayport, Inc. Method and apparatus for geographic-based communications service
US5835061A (en) * 1995-06-06 1998-11-10 Wayport, Inc. Method and apparatus for geographic-based communications service
EP1585112A1 (en) * 2004-03-30 2005-10-12 Dialog Semiconductor GmbH Delay free noise suppression
DE102004031638A1 (en) * 2004-06-30 2006-01-26 Abb Patent Gmbh Method for operating a magneto-inductive flow measuring device
DE102005039621A1 (en) 2005-08-19 2007-03-01 Micronas Gmbh Method and apparatus for the adaptive reduction of noise and background signals in a speech processing system
GB0703275D0 (en) * 2007-02-20 2007-03-28 Skype Ltd Method of estimating noise levels in a communication system
DE102007033484A1 (en) 2007-07-18 2009-01-22 Ruwisch, Dietmar, Dr. hearing Aid
EP2151822B8 (en) 2008-08-05 2018-10-24 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for processing an audio signal for speech enhancement using a feature extraction
US20120245927A1 (en) * 2011-03-21 2012-09-27 On Semiconductor Trading Ltd. System and method for monaural audio processing based preserving speech information
US8239196B1 (en) * 2011-07-28 2012-08-07 Google Inc. System and method for multi-channel multi-feature speech/noise classification for noise suppression
EP2590165B1 (en) 2011-11-07 2015-04-29 Dietmar Ruwisch Method and apparatus for generating a noise reduced audio signal
US9258653B2 (en) 2012-03-21 2016-02-09 Semiconductor Components Industries, Llc Method and system for parameter based adaptation of clock speeds to listening devices and audio applications
CN104160443B (en) 2012-11-20 2016-11-16 统一有限责任两合公司 The method, apparatus and system processed for voice data
US9330677B2 (en) 2013-01-07 2016-05-03 Dietmar Ruwisch Method and apparatus for generating a noise reduced audio signal using a microphone array
CA2928005C (en) * 2013-10-20 2023-09-12 Massachusetts Institute Of Technology Using correlation structure of speech dynamics to detect neurological changes
CN104036784B (en) * 2014-06-06 2017-03-08 华为技术有限公司 A kind of echo cancel method and device
US9881631B2 (en) * 2014-10-21 2018-01-30 Mitsubishi Electric Research Laboratories, Inc. Method for enhancing audio signal using phase information
EP3301675B1 (en) 2016-09-28 2019-08-21 Panasonic Intellectual Property Corporation of America Parameter prediction device and parameter prediction method for acoustic signal processing
WO2018204917A1 (en) 2017-05-05 2018-11-08 Ball Aerospace & Technologies Corp. Spectral sensing and allocation using deep machine learning
CN109427340A (en) * 2017-08-22 2019-03-05 杭州海康威视数字技术股份有限公司 A kind of sound enhancement method, device and electronic equipment
US10283140B1 (en) * 2018-01-12 2019-05-07 Alibaba Group Holding Limited Enhancing audio signals using sub-band deep neural networks
US11182672B1 (en) 2018-10-09 2021-11-23 Ball Aerospace & Technologies Corp. Optimized focal-plane electronics using vector-enhanced deep learning
US10879946B1 (en) * 2018-10-30 2020-12-29 Ball Aerospace & Technologies Corp. Weak signal processing systems and methods
US10761182B2 (en) 2018-12-03 2020-09-01 Ball Aerospace & Technologies Corp. Star tracker for multiple-mode detection and tracking of dim targets
US11851217B1 (en) 2019-01-23 2023-12-26 Ball Aerospace & Technologies Corp. Star tracker using vector-based deep learning for enhanced performance
US11412124B1 (en) 2019-03-01 2022-08-09 Ball Aerospace & Technologies Corp. Microsequencer for reconfigurable focal plane control
EP3726529A1 (en) * 2019-04-16 2020-10-21 Fraunhofer Gesellschaft zur Förderung der Angewand Method and apparatus for determining a deep filter
US11303348B1 (en) 2019-05-29 2022-04-12 Ball Aerospace & Technologies Corp. Systems and methods for enhancing communication network performance using vector based deep learning
US11488024B1 (en) 2019-05-29 2022-11-01 Ball Aerospace & Technologies Corp. Methods and systems for implementing deep reinforcement module networks for autonomous systems control
EP3764359A1 (en) 2019-07-10 2021-01-13 Analog Devices International Unlimited Company Signal processing methods and systems for multi-focus beam-forming
EP3764360B1 (en) 2019-07-10 2024-05-01 Analog Devices International Unlimited Company Signal processing methods and systems for beam forming with improved signal to noise ratio
EP3764660B1 (en) 2019-07-10 2023-08-30 Analog Devices International Unlimited Company Signal processing methods and systems for adaptive beam forming
EP3764358B1 (en) 2019-07-10 2024-05-22 Analog Devices International Unlimited Company Signal processing methods and systems for beam forming with wind buffeting protection
EP3764664A1 (en) 2019-07-10 2021-01-13 Analog Devices International Unlimited Company Signal processing methods and systems for beam forming with microphone tolerance compensation
US11828598B1 (en) 2019-08-28 2023-11-28 Ball Aerospace & Technologies Corp. Systems and methods for the efficient detection and tracking of objects from a moving platform
IT201900024454A1 (en) * 2019-12-18 2021-06-18 Storti Gianampellio LOW POWER SOUND DEVICE FOR NOISY ENVIRONMENTS
CN114944154B (en) * 2022-07-26 2022-11-15 深圳市长丰影像器材有限公司 Audio adjusting method, device, equipment and storage medium
US20240112690A1 (en) * 2022-09-26 2024-04-04 Cerence Operating Company Switchable Noise Reduction Profiles

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5878389A (en) * 1995-06-28 1999-03-02 Oregon Graduate Institute Of Science & Technology Method and system for generating an estimated clean speech signal from a noisy speech signal

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3610831A (en) * 1969-05-26 1971-10-05 Listening Inc Speech recognition apparatus
US5822742A (en) * 1989-05-17 1998-10-13 The United States Of America As Represented By The Secretary Of Health & Human Services Dynamically stable associative learning neural network system
US5581662A (en) * 1989-12-29 1996-12-03 Ricoh Company, Ltd. Signal processing apparatus including plural aggregates
JPH0566795A (en) * 1991-09-06 1993-03-19 Gijutsu Kenkyu Kumiai Iryo Fukushi Kiki Kenkyusho Noise suppressing device and its adjustment device
US5377302A (en) * 1992-09-01 1994-12-27 Monowave Corporation L.P. System for recognizing speech
DE4309985A1 (en) * 1993-03-29 1994-10-06 Sel Alcatel Ag Noise reduction for speech recognition
IT1270919B (en) * 1993-05-05 1997-05-16 Cselt Centro Studi Lab Telecom SYSTEM FOR THE RECOGNITION OF ISOLATED WORDS INDEPENDENT OF THE SPEAKER THROUGH NEURAL NETWORKS
US5649065A (en) * 1993-05-28 1997-07-15 Maryland Technology Corporation Optimal filtering by neural networks with range extenders and/or reducers
EP0707763B1 (en) * 1993-07-07 2001-08-29 Picturetel Corporation Reduction of background noise for speech enhancement
US5960391A (en) * 1995-12-13 1999-09-28 Denso Corporation Signal extraction system, system and method for speech restoration, learning method for neural network model, constructing method of neural network model, and signal processing system
US5717833A (en) * 1996-07-05 1998-02-10 National Semiconductor Corporation System and method for designing fixed weight analog neural networks

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5878389A (en) * 1995-06-28 1999-03-02 Oregon Graduate Institute Of Science & Technology Method and system for generating an estimated clean speech signal from a noisy speech signal

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
ENMAJI A ET AL: "CONCEPTION OF SPEECH FILTERS BASED ON A NEURAL NETWORK", PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON SPOKEN LANGUAGE PROCESSING (ICSLP). BANFF, OCT. 12 - 16, 1992, EDMONTON, UNIVERSITY OF ALBERTA, CA, vol. 2, 12 October 1992 (1992-10-12), pages 1387 - 1390, XP000871657 *
KNECHT W G ET AL: "NEURAL NETWORK FILTERS FOR SPEECH ENHANCEMENT", IEEE TRANSACTIONS ON SPEECH AND AUDIO PROCESSING, IEEE INC. NEW YORK, US, vol. 3, no. 6, 1 November 1995 (1995-11-01), pages 433 - 438, XP000730628, ISSN: 1063-6676 *

Also Published As

Publication number Publication date
DE50009461D1 (en) 2005-03-17
EP1091349A2 (en) 2001-04-11
DE19948308A1 (en) 2001-04-19
ATE289110T1 (en) 2005-02-15
US6820053B1 (en) 2004-11-16
CA2319995C (en) 2005-04-26
DE19948308C2 (en) 2002-05-08
EP1091349B1 (en) 2005-02-09
CA2319995A1 (en) 2001-04-06
TW482993B (en) 2002-04-11

Similar Documents

Publication Publication Date Title
EP1091349A3 (en) Method and apparatus for noise reduction during speech transmission
US6496795B1 (en) Modulated complex lapped transform for integrated signal enhancement and coding
KR100843926B1 (en) System for improving speech intelligibility through high frequency compression
US6144937A (en) Noise suppression of speech by signal processing including applying a transform to time domain input sequences of digital signals representing audio information
MY121575A (en) Method for noise reduction
CA2165351C (en) Method for noise weighting filtering
GB2239971A (en) System for separating speech from background noise
MY119850A (en) Signal noise reduction by spectral subtraction using spectrum dependent exponential gain function averaging
WO2004084181B1 (en) Simple noise suppression model
WO2002093876A3 (en) Final signal from a near-end signal and a far-end signal
DK1529282T3 (en) Method and plant for processing subband signals using adaptive filters
AU4452096A (en) An acoustical echo canceller with sub-band filtering
CA2210490A1 (en) Spectral subtraction noise suppression method
AU4625396A (en) An acoustical echo canceller having an adaptive filter with passage into the frequency domain
WO1999001942A3 (en) A method of noise reduction in speech signals and an apparatus for performing the method
CA2473006A1 (en) System and method for controlling a filter to enhance speakerphone performance
WO2004068893A3 (en) Method and apparatus for noise suppression within a distributed speech recognition system
EP1152527B1 (en) Device and method for adaption of an acoustic signal depending on the ambient noise
FR2645999A1 (en) SPEECH RECOGNITION METHOD
JP3432517B2 (en) Signal processing method and apparatus
WO2002028075A3 (en) Removing noise feedback in conference calls due to accoustical cross talk
CA2335224A1 (en) Acoustic echo canceller
DE69930109T2 (en) LANGUAGE-CONTROLLED SWITCH FOR USE IN HIGH AMBIENT NOISE
JP2005533427A5 (en)
DE10025655B4 (en) A method of removing an unwanted component of a signal and system for distinguishing between unwanted and desired signal components

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

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20011206

RIN1 Information on inventor provided before grant (corrected)

Inventor name: RUWISCH, DIETMAR, DR.

AKX Designation fees paid
REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566

RBV Designated contracting states (corrected)

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

RBV Designated contracting states (corrected)

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: RUWISCH, DIETMAR, DR.

RIN1 Information on inventor provided before grant (corrected)

Inventor name: RUWISCH, DIETMAR, DR.

17Q First examination report despatched

Effective date: 20040622

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

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): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050209

Ref country code: NL

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: 20050209

Ref country code: IE

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: 20050209

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: 20050209

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: GERMAN

REF Corresponds to:

Ref document number: 50009461

Country of ref document: DE

Date of ref document: 20050317

Kind code of ref document: P

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: KELLER & PARTNER PATENTANWAELTE AG

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

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: 20050509

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: 20050509

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: 20050509

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20050425

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050520

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
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: 20050908

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

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

Ref country code: MC

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

Effective date: 20050930

Ref country code: BE

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

Effective date: 20050930

Ref country code: LU

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

Effective date: 20050930

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

26N No opposition filed

Effective date: 20051110

ET Fr: translation filed
BERE Be: lapsed

Owner name: RUWISCH, DIETMAR, DR.

Effective date: 20050930

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 NON-PAYMENT OF DUE FEES

Effective date: 20050709

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

Ref country code: CH

Payment date: 20090923

Year of fee payment: 10

Ref country code: AT

Payment date: 20090928

Year of fee payment: 10

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Ref country code: CH

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

Effective date: 20100930

Ref country code: LI

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

Effective date: 20100930

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 NON-PAYMENT OF DUE FEES

Effective date: 20100908

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

Ref country code: FR

Payment date: 20110927

Year of fee payment: 12

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20130531

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: 20121001

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

Ref country code: DE

Payment date: 20190925

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 50009461

Country of ref document: DE

Representative=s name: BETTEN & RESCH PATENT- UND RECHTSANWAELTE PART, DE

Ref country code: DE

Ref legal event code: R081

Ref document number: 50009461

Country of ref document: DE

Owner name: RUWISCH PATENT GMBH, DE

Free format text: FORMER OWNER: RUWISCH, DIETMAR, DR., 12557 BERLIN, DE

Ref country code: DE

Ref legal event code: R081

Ref document number: 50009461

Country of ref document: DE

Owner name: ANALOG DEVICES INTERNATIONAL UNLIMITED COMPANY, IE

Free format text: FORMER OWNER: RUWISCH, DIETMAR, DR., 12557 BERLIN, DE

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

Free format text: REGISTERED BETWEEN 20200213 AND 20200219

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

Ref country code: GB

Payment date: 20191030

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 50009461

Country of ref document: DE

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20200907

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 EXPIRATION OF PROTECTION

Effective date: 20200907

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 50009461

Country of ref document: DE

Owner name: ANALOG DEVICES INTERNATIONAL UNLIMITED COMPANY, IE

Free format text: FORMER OWNER: RUWISCH PATENT GMBH, 12459 BERLIN, DE

Ref country code: DE

Ref legal event code: R082

Ref document number: 50009461

Country of ref document: DE

Representative=s name: BETTEN & RESCH PATENT- UND RECHTSANWAELTE PART, DE

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

Free format text: REGISTERED BETWEEN 20201210 AND 20201216