EP1258865A2 - Dispositif pour améliorer l'intelligibilité de signaux audio contenant de la parole - Google Patents

Dispositif pour améliorer l'intelligibilité de signaux audio contenant de la parole Download PDF

Info

Publication number
EP1258865A2
EP1258865A2 EP02005495A EP02005495A EP1258865A2 EP 1258865 A2 EP1258865 A2 EP 1258865A2 EP 02005495 A EP02005495 A EP 02005495A EP 02005495 A EP02005495 A EP 02005495A EP 1258865 A2 EP1258865 A2 EP 1258865A2
Authority
EP
European Patent Office
Prior art keywords
circuit arrangement
frequency
arrangement according
input
signal
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
EP02005495A
Other languages
German (de)
English (en)
Other versions
EP1258865A3 (fr
EP1258865B1 (fr
Inventor
Matthias Vierthaler
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.)
TDK Micronas GmbH
Original Assignee
TDK Micronas GmbH
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 TDK Micronas GmbH filed Critical TDK Micronas GmbH
Publication of EP1258865A2 publication Critical patent/EP1258865A2/fr
Publication of EP1258865A3 publication Critical patent/EP1258865A3/fr
Application granted granted Critical
Publication of EP1258865B1 publication Critical patent/EP1258865B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • 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
    • G10L21/0316—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude
    • G10L21/0364—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude for improving intelligibility
    • 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
    • G10L21/0216—Noise filtering characterised by the method used for estimating noise
    • G10L21/0232—Processing in the frequency domain
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2225/00—Details of deaf aids covered by H04R25/00, not provided for in any of its subgroups
    • H04R2225/43—Signal processing in hearing aids to enhance the speech intelligibility

Definitions

  • the invention relates to a circuit arrangement for improvement the intelligibility of speech-containing audio signals according to the features of the preamble of claim 1.
  • the aim of the present invention is speech intelligibility a relatively good audio signal with unchanged Improve volume. This means equal intelligibility at a lower volume or improved intelligibility with ambient noise.
  • US 5,553,151 describes a so-called “forward masking ".
  • weak consonants are replaced by the previous ones strong vowels covered over time.
  • This release beats a relatively fast compressor with an “attack time” of approx. 10 msec. and a “release time “from approx. 75 to 150 msec.
  • the aim of the present invention is therefore a circuit arrangement to improve the speech quality of audio signals to indicate that on the one hand requires little effort and on the other hand, the language still sounds natural.
  • the invention is essentially based on the audio signal amplify to a predetermined factor and in a high pass to filter, the corner frequency of the high pass being regulated that the amplitude of the audio signal after the processing route equal to or proportional to the amplitude of the audio signal is at the entrance of the processing line.
  • the fundamental wave of the speech signal which contributes relatively little to intelligibility, but possesses the greatest energy, is weakened and the usual Signal spectrum of the audio signal increased accordingly become.
  • the whole Signal raised by a factor g. This factor controls the strength of the effect of signal enhancement, being meaningful Values for the factor g are between 1.5 and 4.
  • an "offset" can be added to the input signal, which is either fixed or proportional to the peak amplitude of the audio signal on the input side.
  • the cut-off frequency f c of the variable high-pass filter has a lower limit, since the lowest frequency for speech is approx. A range of approximately 100 to 120 Hz has proven useful for a lower corner frequency.
  • the circuit arrangement has a variable high-pass filter 20 whose corner frequency f c can be changed.
  • the variable high-pass filter 20 has a control input 21, to which a control signal for changing the corner frequency f c can be applied.
  • the audio signal to be improved is preferably supplied to this variable high pass 20 via a low pass 10.
  • an input terminal 1 is provided for applying the audio signal.
  • the low pass 10 does not have to be provided, but is advantageous in order to eliminate signal interference in the audio signal.
  • At the output of the variable high pass 20 there is an amplifier stage 30 which amplifies the output signal of the variable high pass 20 by a factor g. This factor g is adjustable and is preferably between about 1.5 and 4. A gain factor that has been set is preferably no longer changed.
  • the entire processing line consisting of variable high-pass filter 20 and amplifier 30 as well as optional low-pass filter 10 has an output terminal 2, at which the processed audio signal can be tapped as an output signal.
  • the corner frequency f c of the variable high-pass filter 20 is regulated in the following manner in order to improve the intelligibility of speech within the audio signal. If the amplitude (or also energy) of the input signal at input 1 of the circuit arrangement is greater than the amplitude (or energy) at output 2 of the transmission link, then the basic frequency f c is reduced. Incidentally, increased. If the amplitudes at input 1 and output 2 are the same or proportional to a predetermined factor, there is no further change in the base frequency f c .
  • FIG downstream integrator which is preceded by a scaling factor Ki is provided.
  • the output terminal of the integrator 40 is connected to the control input 21 of the variable high pass 20 Connection.
  • the comparator 36 has two input terminals 34, 35 on, at the first terminal 34 the input signal and on whose terminal 35 the output signal of the transmission link is created.
  • the circuit arrangement of FIG. 3 differs from the circuit arrangement of FIG. 2 in that the integrator 40 is replaced by a digital circuit arrangement 60.
  • the basic frequency f c is increased or decreased by a step d in accordance with the output signal of the comparator 36, depending on whether the output signal xc at the output of the comparator 36 is greater or less than 0.
  • the circuit arrangement works as follows: A vowel is low-frequency with a large amplitude. In contrast, a consonant is high-frequency with a small amplitude.
  • the amplification factor g is set such that an amplification of 6 dB is achieved.
  • the corner frequency of the variable high-pass filter 20 has been adjusted to this low frequency by the low-frequency vowel.
  • the fundamental wave is so far lowered that the output amplitude is the same as the input amplitude of the audio signal, although the gain of 6 dB has been selected.
  • the circuit arrangement according to the invention from FIG. 1 operates as follows.
  • the high pass filter 20 has tuned to the frequency of the consonant.
  • the amplitude of the input signal corresponds to the amplitude of the output signal. If a vowel follows (low frequency), the relatively high cut-off frequency f c of the high-pass filter 20 attenuates the vowel during the time transition and consequently does not cover the consonant. Only after a few milliseconds, the base frequency f c is adjusted based on the control time of the control loop so that the amplitude of the input signal corresponds to the amplitude of the output signal.
  • each channel can receive its own control as described above or you can use a common control.
  • the audio path (high pass, low pass, gain) is calculated separately for left and right, but the high passes have the same corner frequency f c .

Landscapes

  • Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Quality & Reliability (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Stereophonic System (AREA)
EP02005495A 2001-05-18 2002-03-11 Dispositif pour améliorer l'intelligibilité de signaux audio contenant de la parole Expired - Lifetime EP1258865B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10124699A DE10124699C1 (de) 2001-05-18 2001-05-18 Schaltungsanordnung zur Verbesserung der Verständlichkeit von Sprache enthaltenden Audiosignalen
DE10124699 2001-05-18

Publications (3)

Publication Number Publication Date
EP1258865A2 true EP1258865A2 (fr) 2002-11-20
EP1258865A3 EP1258865A3 (fr) 2004-05-06
EP1258865B1 EP1258865B1 (fr) 2006-10-18

Family

ID=7685568

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02005495A Expired - Lifetime EP1258865B1 (fr) 2001-05-18 2002-03-11 Dispositif pour améliorer l'intelligibilité de signaux audio contenant de la parole

Country Status (4)

Country Link
US (1) US7418379B2 (fr)
EP (1) EP1258865B1 (fr)
JP (1) JP4141736B2 (fr)
DE (2) DE10124699C1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6799101B2 (en) 2002-12-05 2004-09-28 Wabco Gmbh & Co. Ohg Method for programming flash EEPROMS in microprocessor-equipped vehicle control electronics
US8693716B1 (en) 2012-11-30 2014-04-08 Gn Resound A/S Hearing device with analog filtering and associated method
EP2739069A1 (fr) * 2012-11-30 2014-06-04 GN Resound A/S Dispositif d'aide auditive avec filtrage analogique et procédé associé
EP2979267B1 (fr) 2013-03-26 2019-12-18 Dolby Laboratories Licensing Corporation Appareils et procédés de classification et de traitement d'élément audio

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060126859A1 (en) * 2003-01-31 2006-06-15 Claus Elberling Sound system improving speech intelligibility
US7127076B2 (en) * 2003-03-03 2006-10-24 Phonak Ag Method for manufacturing acoustical devices and for reducing especially wind disturbances
KR101104920B1 (ko) * 2003-09-16 2012-01-12 코닌클리케 필립스 일렉트로닉스 엔.브이. 오디오 주파수 범위 적응
US7539614B2 (en) * 2003-11-14 2009-05-26 Nxp B.V. System and method for audio signal processing using different gain factors for voiced and unvoiced phonemes
US8718298B2 (en) * 2003-12-19 2014-05-06 Lear Corporation NVH dependent parallel compression processing for automotive audio systems
JP4282524B2 (ja) * 2004-03-30 2009-06-24 三洋電機株式会社 Ａｍ受信回路
US7643991B2 (en) * 2004-08-12 2010-01-05 Nuance Communications, Inc. Speech enhancement for electronic voiced messages
DE102004049347A1 (de) * 2004-10-08 2006-04-20 Micronas Gmbh Schaltungsanordnung bzw. Verfahren für Sprache enthaltende Audiosignale
KR100667852B1 (ko) * 2006-01-13 2007-01-11 삼성전자주식회사 휴대용 레코더 기기의 잡음 제거 장치 및 그 방법
TWI376925B (en) * 2007-08-28 2012-11-11 Micro Star Int Co Ltd Adjusting device and method of notification sound according to the environment
US20100040244A1 (en) * 2008-06-30 2010-02-18 Able Planet, Incorporated Method and system for auditory enhancement and hearing conservation
WO2010071521A1 (fr) * 2008-12-19 2010-06-24 Telefonaktiebolaget L M Ericsson (Publ) Systèmes et procédés d'amélioration de l'intelligibilité de la parole dans un environnement bruyant
US8553897B2 (en) 2009-06-09 2013-10-08 Dean Robert Gary Anderson Method and apparatus for directional acoustic fitting of hearing aids
US9101299B2 (en) * 2009-07-23 2015-08-11 Dean Robert Gary Anderson As Trustee Of The D/L Anderson Family Trust Hearing aids configured for directional acoustic fitting
US8879745B2 (en) * 2009-07-23 2014-11-04 Dean Robert Gary Anderson As Trustee Of The D/L Anderson Family Trust Method of deriving individualized gain compensation curves for hearing aid fitting
JP5650227B2 (ja) * 2010-08-23 2015-01-07 パナソニック株式会社 音声信号処理装置及び音声信号処理方法
US8942397B2 (en) * 2011-11-16 2015-01-27 Dean Robert Gary Anderson Method and apparatus for adding audible noise with time varying volume to audio devices
JP5284517B1 (ja) * 2012-06-07 2013-09-11 株式会社東芝 測定装置およびプログラム
US9531333B2 (en) * 2014-03-10 2016-12-27 Lenovo (Singapore) Pte. Ltd. Formant amplifier
US10373608B2 (en) 2015-10-22 2019-08-06 Texas Instruments Incorporated Time-based frequency tuning of analog-to-information feature extraction
US10142743B2 (en) 2016-01-01 2018-11-27 Dean Robert Gary Anderson Parametrically formulated noise and audio systems, devices, and methods thereof

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3678416A (en) * 1971-07-26 1972-07-18 Richard S Burwen Dynamic noise filter having means for varying cutoff point
US3696252A (en) * 1970-11-20 1972-10-03 Motorola Inc Active filter for selecting and controlling signals
JPS574492Y2 (fr) * 1972-05-13 1982-01-27
US4454609A (en) * 1981-10-05 1984-06-12 Signatron, Inc. Speech intelligibility enhancement
DE3205685A1 (de) * 1982-02-17 1983-08-25 Robert Bosch Gmbh, 7000 Stuttgart Hoergeraet
US4539526A (en) * 1983-01-31 1985-09-03 Dbx, Inc. Adaptive signal weighting system
US5170434A (en) * 1988-08-30 1992-12-08 Beltone Electronics Corporation Hearing aid with improved noise discrimination
FR2635680B1 (fr) * 1988-08-30 1997-12-26 Belone Electronics Corp Prothese auditive
US5083312A (en) * 1989-08-01 1992-01-21 Argosy Electronics, Inc. Programmable multichannel hearing aid with adaptive filter
CA2056110C (fr) * 1991-03-27 1997-02-04 Arnold I. Klayman Dispositif pour ameliorer l'intelligibilite dans les systemes de sonorisation
US5305420A (en) * 1991-09-25 1994-04-19 Nippon Hoso Kyokai Method and apparatus for hearing assistance with speech speed control function
AU4380393A (en) * 1992-09-11 1994-04-12 Goldberg, Hyman Electroacoustic speech intelligibility enhancement method and apparatus
US5479560A (en) * 1992-10-30 1995-12-26 Technology Research Association Of Medical And Welfare Apparatus Formant detecting device and speech processing apparatus
US5406633A (en) * 1992-11-03 1995-04-11 Auditory System Technologies, Inc. Hearing aid with permanently adjusted frequency response
US5796842A (en) * 1996-06-07 1998-08-18 That Corporation BTSC encoder
US7110951B1 (en) * 2000-03-03 2006-09-19 Dorothy Lemelson, legal representative System and method for enhancing speech intelligibility for the hearing impaired

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6799101B2 (en) 2002-12-05 2004-09-28 Wabco Gmbh & Co. Ohg Method for programming flash EEPROMS in microprocessor-equipped vehicle control electronics
US8693716B1 (en) 2012-11-30 2014-04-08 Gn Resound A/S Hearing device with analog filtering and associated method
EP2739069A1 (fr) * 2012-11-30 2014-06-04 GN Resound A/S Dispositif d'aide auditive avec filtrage analogique et procédé associé
US9407998B2 (en) 2012-11-30 2016-08-02 Gn Resound A/S Hearing device with analog filtering and associated method
EP3340658A1 (fr) * 2012-11-30 2018-06-27 GN Hearing A/S Dispositif d'aide auditive avec filtrage analogique et procédé associé
EP2979267B1 (fr) 2013-03-26 2019-12-18 Dolby Laboratories Licensing Corporation Appareils et procédés de classification et de traitement d'élément audio
EP3598448B1 (fr) 2013-03-26 2020-08-26 Dolby Laboratories Licensing Corporation Appareils et procédés de classification et de traitement audio

Also Published As

Publication number Publication date
DE50208467D1 (de) 2006-11-30
US7418379B2 (en) 2008-08-26
JP2003018691A (ja) 2003-01-17
EP1258865A3 (fr) 2004-05-06
DE10124699C1 (de) 2002-12-19
US20020173950A1 (en) 2002-11-21
EP1258865B1 (fr) 2006-10-18
JP4141736B2 (ja) 2008-08-27

Similar Documents

Publication Publication Date Title
EP1258865B1 (fr) Dispositif pour améliorer l'intelligibilité de signaux audio contenant de la parole
DE68913139T2 (de) Störunterdrückung.
EP1853089B1 (fr) Méthode pour la suppression de la rétroaction et pour l'éxpansion spéctrale pour des appareils de correction auditive
DE69131095T2 (de) Verständlichkeitsverbesserungsanordnung für eine Beschallungsanlage
DE69123500T2 (de) 32 Kb/s codeangeregte prädiktive Codierung mit niedrigen Verzögerung für Breitband-Sprachsignal
DE69737235T2 (de) Digitales hörhilfegerät unter verwendung von differenzsignaldarstellungen
DE69719246T2 (de) Spektrale Umsetzung eines digitalen Audiosignals
DE69428119T2 (de) Verringerung des hintergrundrauschens zur sprachverbesserung
EP1919257B1 (fr) Réduction du bruit dépendant du niveau
DE2526034A1 (de) Hoerhilfeverfahren und vorrichtung zur durchfuehrung des verfahrens
DE69420183T2 (de) Verfahren und Vorrichtung zur Sprachkodierung und Sprachdekodierung und Sprachnachverarbeitung
EP0076234A1 (fr) Procédé et dispositif pour traitement digital de la parole réduisant la redondance
EP0668007A1 (fr) Appareil radiotelephonique mobile a dispositif mains libres
DE69820362T2 (de) Nichtlinearer Filter zur Geräuschunterdrückung in linearen Prädiktions-Sprachkodierungs-Vorrichtungen
CH625900A5 (fr)
EP3818727B1 (fr) Dispositif et procédée de modigication d'un signal d'haut-parleur pour eviter un déplacement excessif de la membrane
EP1152527B1 (fr) Dispositif et procédé pour l'adaptation d'un signal acoustique en fonction du niveau de bruit ambiant
EP3565270B1 (fr) Procédé de réduction du bruit dans un signal audio
DE3733983A1 (de) Verfahren zum daempfen von stoerschall in von hoergeraeten uebertragenen schallsignalen
EP0658874B1 (fr) Procédé et dispositif de circuit pour l'agrandissement de la largeur de signaux de langage à bande étroite
DE19832472A1 (de) Vorrichtung und Verfahren zur Beeinflussung eines Audiosignals in Abhängigkeit von Umgebungsgeräuschen
DE3602000C2 (fr)
EP1453355A1 (fr) Traitement de signal dans un appareil auditif
DE69427331T2 (de) Verfahren und Vorrichtung zur Verarbeitung von Signalen
EP2394271B1 (fr) Procédé de séparation de cheminements de signaux et application de ce procédé pour améliorer la qualité de la voix d'un larynx électronique

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 TR

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 TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

RIC1 Information provided on ipc code assigned before grant

Ipc: 7G 10L 21/02 A

Ipc: 7H 03G 5/16 B

Ipc: 7H 04R 25/00 B

17P Request for examination filed

Effective date: 20040603

AKX Designation fees paid

Designated state(s): DE FR GB IT NL

17Q First examination report despatched

Effective date: 20050506

RBV Designated contracting states (corrected)

Designated state(s): DE FR GB IT NL

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): DE FR GB IT NL

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: 20061018

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

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

Effective date: 20061018

REF Corresponds to:

Ref document number: 50208467

Country of ref document: DE

Date of ref document: 20061130

Kind code of ref document: P

ET Fr: translation filed
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: 20070719

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

Ref country code: FR

Payment date: 20100402

Year of fee payment: 9

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

Ref country code: GB

Payment date: 20100322

Year of fee payment: 9

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

Ref country code: IT

Payment date: 20100326

Year of fee payment: 9

REG Reference to a national code

Ref country code: NL

Ref legal event code: SD

Effective date: 20101011

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

Free format text: REGISTERED BETWEEN 20101125 AND 20101201

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 50208467

Country of ref document: DE

Owner name: ENTROPIC COMMUNICATIONS, INC., SAN DIEGO, US

Free format text: FORMER OWNER: MICRONAS GMBH, 79108 FREIBURG, DE

Effective date: 20110210

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

Effective date: 20110311

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20111130

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: 20110331

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: 20110311

Ref country code: GB

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

Effective date: 20110311

REG Reference to a national code

Ref country code: DE

Ref legal event code: R084

Ref document number: 50208467

Country of ref document: DE

Effective date: 20110426

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 50208467

Country of ref document: DE

Representative=s name: EPPING HERMANN FISCHER, PATENTANWALTSGESELLSCH, DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 50208467

Country of ref document: DE

Representative=s name: EPPING HERMANN FISCHER, PATENTANWALTSGESELLSCH, DE

Effective date: 20121023

Ref country code: DE

Ref legal event code: R081

Ref document number: 50208467

Country of ref document: DE

Owner name: ENTROPIC COMMUNICATIONS, INC., US

Free format text: FORMER OWNER: TRIDENT MICROSYSTEMS (FAR EAST) LTD., GRAND CAYMAN, KY

Effective date: 20121023

Ref country code: DE

Ref legal event code: R081

Ref document number: 50208467

Country of ref document: DE

Owner name: ENTROPIC COMMUNICATIONS, INC., SAN DIEGO, US

Free format text: FORMER OWNER: TRIDENT MICROSYSTEMS (FAR EAST) LTD., GRAND CAYMAN, KY

Effective date: 20121023

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

Ref country code: DE

Payment date: 20130327

Year of fee payment: 12

REG Reference to a national code

Ref country code: NL

Ref legal event code: SD

Effective date: 20130916

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50208467

Country of ref document: DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50208467

Country of ref document: DE

Effective date: 20141001

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

Ref country code: DE

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

Effective date: 20141001

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

Ref country code: NL

Payment date: 20150326

Year of fee payment: 14

REG Reference to a national code

Ref country code: NL

Ref legal event code: MM

Effective date: 20160401

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: 20160401