EP1120008B1 - Feedback management for hearing aid - Google Patents
Feedback management for hearing aid Download PDFInfo
- Publication number
- EP1120008B1 EP1120008B1 EP99970256A EP99970256A EP1120008B1 EP 1120008 B1 EP1120008 B1 EP 1120008B1 EP 99970256 A EP99970256 A EP 99970256A EP 99970256 A EP99970256 A EP 99970256A EP 1120008 B1 EP1120008 B1 EP 1120008B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gain
- volume control
- frequency channel
- hearing aid
- filter
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
- H04R25/45—Prevention of acoustic reaction, i.e. acoustic oscillatory feedback
- H04R25/453—Prevention of acoustic reaction, i.e. acoustic oscillatory feedback electronically
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
- H04R25/35—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception using translation techniques
- H04R25/356—Amplitude, e.g. amplitude shift or compression
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
- H04R25/50—Customised settings for obtaining desired overall acoustical characteristics
- H04R25/502—Customised settings for obtaining desired overall acoustical characteristics using analog signal processing
Definitions
- the present invention relates to a method of managing acoustic feedback in hearing aids.
- Feedback is a problem, which occurs in a hearing aid when the acoustic output signal from the hearing aid propagates beside an ear mould or through a vent and consequently enter the hearing aid microphone as an acoustic input.
- the hereby closed acoustic loop will especially for frequencies above 1-2 kHz often cause the hearing aid to howl, which disables the function of the hearing aid.
- Previously known methods comprise the use of a high frequency cut-off filter to reduce the gain for the feedback management.
- This method can have the form of an isolated filter to be individually adjusted, but suffer from a drawback in that when the volume control of the hearing aid is turned down and hereby reduces the gain of the feedback frequencies, the filter is still in action reducing the high frequency gain.
- Another known method comprises a combination of the volume control and a high frequency cut-off filter meaning that when the volume control is turned up and hereby increases the gain of the hearing aid, the filter goes gradually into action and reduces the high frequency gain. The drawbacks of this scheme being that until now this could not be individually adjusted and secondly that the steepness of this filter was a modest 6 dB/octave.
- the objective of the present invention is to provide a method for feedback management, which reduces the feedback problems without the previously mentioned drawbacks.
- determining of the maximum gain before feedback occurs and the monitoring the volume control is applied for several channels.
- a 1 st or preferably higher order multi channel filter can be used for feedback management and adaptation purposes. This filter has shown to possess adequate properties for the purpose of the method according to the invention.
- the hearing aid comprises a housing containing a microphone, an amplifier in connection with the microphone, a receiver in connection with the amplifier, where the amplifier comprises a multi channel type of filter, a control system for controlling the gain in at least one channel, and control means for monitoring the volume control in the at least one channel.
- determining of the maximum gain before feedback occurs and the monitoring the volume control is applied for several channels.
- the multi channel filter is adapted for both feedback management and adaptation purposes.
- FIG. 1-2 are drawings showing the function of a method according to the invention:
- the multi channel filter has as an example been chosen to be a two channel type filter along with a suitable crossover frequency.
- the volume control comprise in this example 15 steps, each step defining a 2 dB increase or decrease of gain. All frequencies are subjected to the same increase or decrease of gain depending on the setting of the volume control.
- volume control -12 dB. If the user exceeds this setting of the volume control, the control system takes over and for example keeps the gain in the high frequency channel constant and allows only an increase in gain for the low frequency channel.
- the number of channels, step size, the number of steps etc. may in this connection be chosen different from the above example.
Abstract
Description
- The present invention relates to a method of managing acoustic feedback in hearing aids. Feedback is a problem, which occurs in a hearing aid when the acoustic output signal from the hearing aid propagates beside an ear mould or through a vent and consequently enter the hearing aid microphone as an acoustic input. The hereby closed acoustic loop will especially for frequencies above 1-2 kHz often cause the hearing aid to howl, which disables the function of the hearing aid.
- During time several attempts have been made to avoid or to reduce the feedback problems of hearing aids. Previously known methods comprise the use of a high frequency cut-off filter to reduce the gain for the feedback management. This method can have the form of an isolated filter to be individually adjusted, but suffer from a drawback in that when the volume control of the hearing aid is turned down and hereby reduces the gain of the feedback frequencies, the filter is still in action reducing the high frequency gain. Another known method comprises a combination of the volume control and a high frequency cut-off filter meaning that when the volume control is turned up and hereby increases the gain of the hearing aid, the filter goes gradually into action and reduces the high frequency gain. The drawbacks of this scheme being that until now this could not be individually adjusted and secondly that the steepness of this filter was a modest 6 dB/octave.
- The objective of the present invention is to provide a method for feedback management, which reduces the feedback problems without the previously mentioned drawbacks.
- The objective of the invention is achieved by a method, which is characterised by:
- using a multi (two or more) channel type of filter hereby splitting the frequency range up in two or more separate parts
- determining the maximum allowable gain in at least one frequency range before feedback occurs
- monitoring the volume control in such a way, that if the maximum allowable gain before feedback occurs is reached or exceeded, the gain is manipulated for an offending frequency range.
- By such a method the above mentioned drawbacks of the previously known methods are remedied and the feedback management may be adjusted individually for the actual user.
- In a further embodiment the determining of the maximum gain before feedback occurs and the monitoring the volume control is applied for several channels.
- By using a multi channel type of filter it is possible by proper selection of the crossover frequencies to use the same type of filter for both feedback and adaption purposes. Using the same filter for both purposes reduces the size of the amplifier and to some extent also the cost of the amplifier.
- A 1 st or preferably higher order multi channel filter can be used for feedback management and adaptation purposes. This filter has shown to possess adequate properties for the purpose of the method according to the invention.
- According to the invention the hearing aid comprises a housing containing a microphone, an amplifier in connection with the microphone, a receiver in connection with the amplifier, where the amplifier comprises a multi channel type of filter, a control system for controlling the gain in at least one channel, and control means for monitoring the volume control in the at least one channel.
- In a further embodiment the determining of the maximum gain before feedback occurs and the monitoring the volume control is applied for several channels.
- In a preferred embodiment the multi channel filter is adapted for both feedback management and adaptation purposes.
- The invention will be explained more detailed in the following with reference to the drawings.
-
FIG. 1-2 are drawings showing the function of a method according to the invention: - In the
FIGS. 1 to 2 the multi channel filter has as an example been chosen to be a two channel type filter along with a suitable crossover frequency. - From
FIG. 1 a situation appears where the feedback management has been disabled and the volume control functions in a conventional manner. The volume control comprise in this example 15 steps, each step defining a 2 dB increase or decrease of gain. All frequencies are subjected to the same increase or decrease of gain depending on the setting of the volume control. - From
FIG. 2 a situation appears, where the maximum allowable gain in the high frequency channel before feedback occurs has been determined to volume control (VC) setting -12 dB. If the user exceeds this setting of the volume control, the control system takes over and for example keeps the gain in the high frequency channel constant and allows only an increase in gain for the low frequency channel. - The number of channels, step size, the number of steps etc. may in this connection be chosen different from the above example.
Claims (5)
- A method of managing acoustic feedback in a hearing aid comprising a user-operable volume control and a filter with at least a first and a second frequency channel, wherein a maximum allowable gain before feedback occurs has been determined for the first frequency channel thereby defining for the first frequency channel a corresponding maximum setting of the volume control, the method comprising:- monitoring the setting of the volume control;- increasing the gain in the first and second frequency channel as the volume control setting increases; and- in dependence on the volume control setting exceeding the maximum setting, keeping the gain in the first frequency channel constant or only slightly increased while allowing an increase in gain in the second frequency channel.
- A method according to claim 1, wherein the filter is of first order or higher.
- A method according to claim 1 or 2, wherein the filter is used for feedback management or for adaptation purposes or both.
- A hearing aid adapted to be operated according to the method of any of the preceding claims.
- A hearing aid according to claim 4 and comprising a housing containing a microphone, an amplifier in connection with the microphone, a receiver in connection with the amplifier, wherein the amplifier comprises the filter, a control system for controlling the gain in the first frequency channel and control means for monitoring the volume control in the first frequency channel.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK127498 | 1998-10-07 | ||
DKPA199801274 | 1998-10-07 | ||
PCT/DK1999/000536 WO2000021332A2 (en) | 1998-10-07 | 1999-10-07 | Feedback management for hearing aid |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1120008A2 EP1120008A2 (en) | 2001-08-01 |
EP1120008B1 true EP1120008B1 (en) | 2011-07-27 |
Family
ID=8103013
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99970256A Expired - Lifetime EP1120008B1 (en) | 1998-10-07 | 1999-10-07 | Feedback management for hearing aid |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1120008B1 (en) |
AT (1) | ATE518383T1 (en) |
AU (1) | AU5969499A (en) |
DK (1) | DK1120008T3 (en) |
WO (1) | WO2000021332A2 (en) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6718301B1 (en) | 1998-11-11 | 2004-04-06 | Starkey Laboratories, Inc. | System for measuring speech content in sound |
US7010136B1 (en) | 1999-02-17 | 2006-03-07 | Micro Ear Technology, Inc. | Resonant response matching circuit for hearing aid |
EP1216598B1 (en) | 1999-09-10 | 2005-02-09 | Starkey Laboratories, Inc. | Audio signal processing |
WO2001054458A2 (en) | 2000-01-20 | 2001-07-26 | Starkey Laboratories, Inc. | Hearing aid systems |
US7489790B2 (en) | 2000-12-05 | 2009-02-10 | Ami Semiconductor, Inc. | Digital automatic gain control |
JP4681163B2 (en) * | 2001-07-16 | 2011-05-11 | パナソニック株式会社 | Howling detection and suppression device, acoustic device including the same, and howling detection and suppression method |
US7650004B2 (en) | 2001-11-15 | 2010-01-19 | Starkey Laboratories, Inc. | Hearing aids and methods and apparatus for audio fitting thereof |
US7369669B2 (en) | 2002-05-15 | 2008-05-06 | Micro Ear Technology, Inc. | Diotic presentation of second-order gradient directional hearing aid signals |
US6829363B2 (en) | 2002-05-16 | 2004-12-07 | Starkey Laboratories, Inc. | Hearing aid with time-varying performance |
US7369671B2 (en) | 2002-09-16 | 2008-05-06 | Starkey, Laboratories, Inc. | Switching structures for hearing aid |
US8284970B2 (en) | 2002-09-16 | 2012-10-09 | Starkey Laboratories Inc. | Switching structures for hearing aid |
US7010135B2 (en) | 2002-10-02 | 2006-03-07 | Phonak Ag | Method to determine a feedback threshold in a hearing device |
US7536022B2 (en) | 2002-10-02 | 2009-05-19 | Phonak Ag | Method to determine a feedback threshold in a hearing device |
AU2004201374B2 (en) | 2004-04-01 | 2010-12-23 | Phonak Ag | Audio amplification apparatus |
AU2003236382B2 (en) | 2003-08-20 | 2011-02-24 | Phonak Ag | Feedback suppression in sound signal processing using frequency transposition |
US7756276B2 (en) | 2003-08-20 | 2010-07-13 | Phonak Ag | Audio amplification apparatus |
US9774961B2 (en) | 2005-06-05 | 2017-09-26 | Starkey Laboratories, Inc. | Hearing assistance device ear-to-ear communication using an intermediate device |
US8041066B2 (en) | 2007-01-03 | 2011-10-18 | Starkey Laboratories, Inc. | Wireless system for hearing communication devices providing wireless stereo reception modes |
US8208642B2 (en) | 2006-07-10 | 2012-06-26 | Starkey Laboratories, Inc. | Method and apparatus for a binaural hearing assistance system using monaural audio signals |
DE102006046699B3 (en) | 2006-10-02 | 2008-01-03 | Siemens Audiologische Technik Gmbh | Hearing device particularly hearing aid, has signal processing mechanism by which signals are processed in multiple frequency channels and adjusting mechanism is used for adjusting levels of individual frequency channels |
US8359283B2 (en) | 2009-08-31 | 2013-01-22 | Starkey Laboratories, Inc. | Genetic algorithms with robust rank estimation for hearing assistance devices |
US8737653B2 (en) | 2009-12-30 | 2014-05-27 | Starkey Laboratories, Inc. | Noise reduction system for hearing assistance devices |
US8965016B1 (en) | 2013-08-02 | 2015-02-24 | Starkey Laboratories, Inc. | Automatic hearing aid adaptation over time via mobile application |
US10003379B2 (en) | 2014-05-06 | 2018-06-19 | Starkey Laboratories, Inc. | Wireless communication with probing bandwidth |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5111419A (en) * | 1988-03-23 | 1992-05-05 | Central Institute For The Deaf | Electronic filters, signal conversion apparatus, hearing aids and methods |
US5016280A (en) * | 1988-03-23 | 1991-05-14 | Central Institute For The Deaf | Electronic filters, hearing aids and methods |
DK169958B1 (en) * | 1992-10-20 | 1995-04-10 | Gn Danavox As | Hearing aid with compensation for acoustic feedback |
DK0824845T3 (en) * | 1995-05-02 | 1999-06-21 | Toepholm & Westermann | Method of Controlling a Programmable or Program Controlled Hearing Aid for its In Situ Adjustment Adjustment |
-
1999
- 1999-10-07 WO PCT/DK1999/000536 patent/WO2000021332A2/en active Application Filing
- 1999-10-07 EP EP99970256A patent/EP1120008B1/en not_active Expired - Lifetime
- 1999-10-07 DK DK99970256.6T patent/DK1120008T3/en active
- 1999-10-07 AU AU59694/99A patent/AU5969499A/en not_active Abandoned
- 1999-10-07 AT AT99970256T patent/ATE518383T1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
WO2000021332A2 (en) | 2000-04-13 |
AU5969499A (en) | 2000-04-26 |
DK1120008T3 (en) | 2011-10-24 |
ATE518383T1 (en) | 2011-08-15 |
WO2000021332A3 (en) | 2000-07-27 |
EP1120008A2 (en) | 2001-08-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1120008B1 (en) | Feedback management for hearing aid | |
EP0077688B1 (en) | Improvements in or relating to hearing aids | |
US5091952A (en) | Feedback suppression in digital signal processing hearing aids | |
EP1068773B2 (en) | Apparatus and methods for combining audio compression and feedback cancellation in a hearing aid | |
DK1191814T4 (en) | A multiband hearing aid with multi-band adaptive filters for acoustic feedback suppression. | |
US5202927A (en) | Remote-controllable, programmable, hearing aid system | |
US5396560A (en) | Hearing aid incorporating a novelty filter | |
EP1191814B2 (en) | A multiband hearing aid with multiband adaptive filters for acoustic feedback suppression. | |
US4118604A (en) | Loudness contour compensated hearing aid having ganged volume, bandpass filter, and compressor control | |
AU5311998A (en) | Dynamic automatic gain control in a hearing aid | |
US4322579A (en) | Sound reproduction in a space with an independent sound source | |
AU2006252157B2 (en) | System for controlling a transfer function of a hearing aid | |
US20070206824A1 (en) | Hearing Aid With Anti Feedback System | |
CA2268918A1 (en) | Compression systems for hearing aids | |
CA2215764A1 (en) | Process for controlling a programmable or program-controlled hearing aid for its in-situ fitting adjustment | |
JPS62180700A (en) | Signal processor and hearing aid | |
EP1148637B1 (en) | Level adjustment circuit | |
EP0235848B1 (en) | Automatically controlled amplifier arrangement | |
CA2294713A1 (en) | Hearing aid having input agc and output agc | |
US20040151332A1 (en) | Feedback management for hearing aid | |
KR980007317A (en) | Apparatus and method for allowing a telephone user to control a threshold volume at which a user's voice controls a half-duplex speakerphone | |
US7123732B2 (en) | Process to adapt the signal amplification in a hearing device as well as a hearing device | |
CA2257461A1 (en) | Hearing aid with improved percentile estimator | |
KR100363252B1 (en) | Adaptive feedback cancellation apparatus and method for multi-band compression hearing aids | |
JP2000022469A (en) | Audio processing unit |
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: 20010507 |
|
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 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: OTICON A/S |
|
17Q | First examination report despatched |
Effective date: 20100615 |
|
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 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: NV Representative=s name: FIAMMENGHI-FIAMMENGHI |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 69943607 Country of ref document: DE Effective date: 20110915 |
|
REG | Reference to a national code |
Ref country code: DK Ref legal event code: T3 |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: VDEP Effective date: 20110727 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MK05 Ref document number: 518383 Country of ref document: AT Kind code of ref document: T Effective date: 20110727 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
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: 20110727 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: 20110727 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: 20111128 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: 20110727 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: 20110727 |
|
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: 20110727 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: 20110727 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: 20111028 |
|
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: 20111031 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 Effective date: 20110727 |
|
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: 20120502 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: MM4A |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 69943607 Country of ref document: DE Effective date: 20120502 |
|
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: 20111007 |
|
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: 20111107 |
|
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 NON-PAYMENT OF DUE FEES Effective date: 20111007 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 17 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DK Payment date: 20151022 Year of fee payment: 17 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 20151012 Year of fee payment: 17 Ref country code: GB Payment date: 20151028 Year of fee payment: 17 Ref country code: DE Payment date: 20151026 Year of fee payment: 17 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20151102 Year of fee payment: 17 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 69943607 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: DK Ref legal event code: EBP Effective date: 20161031 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20161007 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20170630 |
|
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: 20161102 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20161031 Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20170503 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20161007 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20161031 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DK Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20161031 |