EP1624723B1 - Stabilisierung des Systemtaktes bei einem Hörhilfegerät - Google Patents

Stabilisierung des Systemtaktes bei einem Hörhilfegerät Download PDF

Info

Publication number: EP1624723B1
Authority: EP; European Patent Office
Prior art keywords: signal; hearing aid; system clock; clock frequency; generating
Prior art date: 2004-08-02
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

Application number

EP05107054A

Other languages

German (de)

English (en)

French (fr)

Other versions

EP1624723A3 (de

EP1624723A2 (de

Inventor

Eghart Fischer

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.)

Sivantos GmbH

Original Assignee

Siemens Audiologische Technik 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.)

2004-08-02

Filing date

2005-07-29

Publication date

2012-05-30

2005-07-29 Application filed by Siemens Audiologische Technik GmbH filed Critical Siemens Audiologische Technik GmbH

2006-02-08 Publication of EP1624723A2 publication Critical patent/EP1624723A2/de

2009-05-20 Publication of EP1624723A3 publication Critical patent/EP1624723A3/de

2012-05-30 Application granted granted Critical

2012-05-30 Publication of EP1624723B1 publication Critical patent/EP1624723B1/de

2025-07-29 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R25/00—Electric hearing aids
- H04R25/70—Adaptation of deaf aid to hearing loss, e.g. initial electronic fitting
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R25/00—Electric hearing aids
- H04R25/55—Electric hearing aids using an external connection, either wireless or wired
- H04R25/558—Remote control, e.g. of amplification, frequency
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R2420/00—Details of connection covered by H04R, not provided for in its groups
- H04R2420/07—Applications of wireless loudspeakers or wireless microphones
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R25/00—Electric hearing aids
- H04R25/50—Customised settings for obtaining desired overall acoustical characteristics
- H04R25/505—Customised settings for obtaining desired overall acoustical characteristics using digital signal processing

Definitions

the invention relates to a hearing aid system according to the preamble of the first claim. Furthermore, the invention relates to a method for operating such a hearing aid device system.
the system clock can not be generated with a quartz, but only with an oscillator due to the desired miniaturization, as a quartz control would take up too much space. Due to higher, sometimes temperature-dependent component tolerances, the fluctuation range within which the clock frequency of the hearing aid can deviate from a predetermined target value, therefore +/- 5%, that is, at nominal 20 KHz clock frequency, the actual value between 19 KHz and 21 KHz , This is a problem especially for filters which are purely acoustic / physical phenomena, e.g. Hörerresonanzen, to modify effects through the sound tube and the like. The parameters of these filters, e.g.
a hearing aid is known in which an automatic selection of the active hearing program depending on the time of day.
the hearing aid is equipped with an internal clock for this purpose.
the hearing aid is preferably for receiving an external time signal (eg DCF 77) of a time signal transmitter.
an external time signal eg DCF 77
a manual setting of the time, z For example, to switch between summer time and winter time, it eliminates.
a hearing device with a microphone, a signal processing unit, a receiver and a detector element for detecting electromagnetic interference signals wherein a configurable depending on the detected interference signal filter element for suppressing the interference signals is present.
the known hearing aid is implemented in digital circuit technology and has a clock generator for this purpose. In a detected, clocked interference signal, the previous clock frequency is replaced by the clock frequency of the interference signal or a multiple of this clock frequency. The clock frequency is thus determined by the clock frequency of the interference signal.
the object of the present invention is to reduce the fluctuation range of a predetermined clock frequency in a digital hearing aid device.
the object is achieved by a method for operating such a hearing aid system with the method steps specified in claim 6.
an input signal is recorded by means of an input transducer and converted into an electrical input signal.
an input transducer usually serves as an input transducer at least one microphone, which is an acoustic input signal receives.
Modern hearing aids often comprise a microphone system with a plurality of microphones in order to achieve a direction dependent on the direction of arrival of acoustic signals reception, a directional characteristic.
the input transducers may also include a telecoil or antenna for receiving electromagnetic input signals.
the input signals converted by the input transducer into electrical input signals are fed to a signal processing unit for further processing and amplification. The further processing and amplification takes place to compensate for the individual hearing loss of a hearing aid wearer, as a rule, as a function of the signal frequency.
the signal processing unit outputs an electrical output signal, which is fed via an output transducer to the hearing of the hearing aid wearer, so that the latter perceives the output signal as an acoustic signal.
output transducers usually listeners are used, which generate an acoustic output signal.
output transducers for generating mechanical vibrations are also known, which directly excite certain parts of the ear, such as the ossicles, to vibrate.
output transducers are known which directly stimulate neurons of the ear.
the hearing aid according to the invention is implemented in digital circuit technology and therefore comprises a clock element for generating the system clock. Since quartz can not be used due to the intended miniaturization of hearing aids, the hearing aid according to the invention uses a common oscillator. However, this has the disadvantage that a predetermined system clock frequency can actually only be achieved with a deviation of about +/- 5% of the predetermined value. Since this deviation is not acceptable for the application of certain filters, it is proposed according to the invention to use a more precise, for example stabilized with a quartz, external clock signal for stabilizing the internal system clock. This clock signal is generated in an external device, such as a remote control for the hearing aid, and as electromagnetic Transfer the signal wirelessly to the hearing aid.
the clock frequency of this external clock is known, then the clock frequency of the hearing aid can be compared and readjusted.
the deviation from the specified value is thereby significantly less than +/- 5%, for example, only +/- 0.5%. Due to the stabilized clock with the achieved thereby, small deviation of the clock frequency of the setpoint then realized in the hearing aid digital filters can be set much more accurate.
a so-called ring oscillator is often used in hearing aids, which is characterized in particular by a low power consumption.
This is composed essentially of several series-connected inverters, wherein the output of the last inverter of the chain is fed back to the input of the first inverter.
the fine adjustment of the clock is done via an adjustable power source, which supplies the inverter with power.
the current of this power source is usually set once after the production of a hearing aid. Due to the ambient temperature, aging influences, component tolerances, etc., however, during operation of the hearing aid device, the abovementioned deviations of up to +/- 5% from the set desired value occur.
the current source is readjusted during the operation of the hearing aid in this method of clock generation.
the invention is not limited to the exemplified ring oscillator for clock generation. Rather, the person skilled in a variety of other methods for clock generation in hearing aids known.
the clock frequency can generally be readjusted by controllable current or voltage sources, resistors, capacitances or inductances.
An embodiment of the invention provides a quartz wristwatch as an external transmitter, which is additionally provided with a transmitting unit. This requires compared to a conventional one Quartz wristwatch with only minor modifications and can be worn inconspicuously in the distance to the hearing aid for this application.
a time signal for radio clocks sent out in many countries, in Germany the DCF77 time signal is used as an external clock signal in order to stabilize the hearing aid device-internal system clock.
Such a time signal is broadcast in many countries nationwide and with very high accuracy of the clock periods. Also corresponding receivers are available at low cost.
a development of the invention provides to readjust the system clock an averaging over several counts of the actual clock pulses of the hearing aid clock during at least one period of the external clock signal and perform the corresponding comparisons with the setpoint. This allows an even more accurate adjustment of the system clock. Disturbances in the reception of the external signal are thereby compensated.
the figure shows a hearing aid 1 with a microphone 2 for receiving an acoustic input signal and conversion into an electrical signal, a signal processing unit 3 for processing and frequency-dependent amplification of the electrical signal and a receiver 4 for converting the processed and amplified signal into an acoustic output signal.
the signal processing unit 3 in the embodiment is implemented in digital circuit technology and therefore comprises an A / D converter 5 for converting the electrical input signal into a digital input signal and a D / A converter 7 for converting the processed digital signal into an analog output signal. In between, the signal processing takes place in a digital circuit technology realized signal processing unit 6.
the digital components of the hearing aid 1 are clocked by a clock generator 8.
a clock generator 8 By Frequenzvervieltigtiger individual components can be clocked at multiples of this clock frequency. Since the clock generator contains only a simply constructed oscillator and no quartz, the predetermined clock frequency can be maintained with a maximum deviation of +/- 5% from the predetermined setpoint. However, this fluctuation range is too high for certain digital filters included in the digital signal processing unit 6.
the clock frequency generated by the clock generator 8 will be stabilized according to the invention such that at least temporarily the deviation of up to +/- 5% from the setpoint is substantially limited.
a remote control 9 for remote control of the hearing aid 1.
the remote control 9 in the exemplary embodiment comprises a clock generator 12, which comprises a quartz 13.
the clock frequency can thus be kept very accurate.
the period of the clock pulses which are generated and emitted by the remote control 1 is preferably very long, for example 10 seconds.
the hearing aid 1 in turn comprises a receiving unit 14 for receiving the output from the remote control 9 clock signal.
the external clock signal is finally supplied to a counter 15 which counts the number of clocks of the clock generator 8 during a period of the external clock signal.
the counter 15 reaches a count of 210,000 during a period of the external clock signal of 10 seconds.
the count would have after 10 sec, however, be 200,000.
the clock frequency of the clock generator 8 is therefore readjusted accordingly.
a comparison control unit 16 is present in the hearing aid 1, in addition to the count and a setpoint S received. From the comparison of the counter reading with the reference value, the comparison and control unit 16 generates a control signal for slowing the clock frequency of the clock generator 8.
the count is averaged over several periods of the external clock signal before a control signal for correcting the clock frequency of the clock generator 8 is generated.
a control signal for correcting the clock frequency of the clock generator 8 is generated.

Landscapes

Engineering & Computer Science (AREA)
Health & Medical Sciences (AREA)
General Health & Medical Sciences (AREA)
Neurosurgery (AREA)
Otolaryngology (AREA)
Physics & Mathematics (AREA)
Acoustics & Sound (AREA)
Signal Processing (AREA)
Computer Networks & Wireless Communication (AREA)
Transmitters (AREA)
Electric Clocks (AREA)
Selective Calling Equipment (AREA)

EP05107054A 2004-08-02 2005-07-29 Stabilisierung des Systemtaktes bei einem Hörhilfegerät Expired - Lifetime EP1624723B1 (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE102004037379		2004-08-02

Publications (3)

Publication Number	Publication Date
EP1624723A2 EP1624723A2 (de)	2006-02-08
EP1624723A3 EP1624723A3 (de)	2009-05-20
EP1624723B1 true EP1624723B1 (de)	2012-05-30

Family

ID=35415260

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP05107054A Expired - Lifetime EP1624723B1 (de)	2004-08-02	2005-07-29	Stabilisierung des Systemtaktes bei einem Hörhilfegerät

Country Status (3)

Country	Link
US (1)	US7577268B2 (da)
EP (1)	EP1624723B1 (da)
DK (1)	DK1624723T3 (da)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US8588443B2 (en)	2006-05-16	2013-11-19	Phonak Ag	Hearing system with network time
CA2687840A1 (en) *	2007-06-13	2008-12-18	Widex A/S	A hearing aid adapted for issuing a notification and a method for issuing a notification
WO2012119085A1 (en) *	2011-03-02	2012-09-07	Touchdome Llc.	A talking dome watch for the visually impaired
CN112469470B (zh)	2018-10-10	2024-07-26	科利耳有限公司	可植入医疗设备短程无线电同步

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO1993004425A1 (en) *	1991-08-13	1993-03-04	Universal Photonix, Inc.	System for remotely validating the identity of indivuals and determining their locations
DK1104645T3 (da)	1998-08-13	2003-06-02	Siemens Audiologische Technik	Høreapparat med en indretning til undertrykkelse af elektromagnetiske støjsignaler samt fremgangsmåde til undertrykkelse af elektromagnetiske støjsignaler i høreapparater
US20050036637A1 (en) *	1999-09-02	2005-02-17	Beltone Netherlands B.V.	Automatic adjusting hearing aid
AU774579B2 (en) *	1999-10-15	2004-07-01	Phonak Ag	Binaural synchronisation
CA2397317C (en) *	2000-01-13	2009-04-14	Phonak Ag	Hearing aid remote control and a hearing aid with a remote control of this type
JP4939722B2 (ja) *	2000-07-14	2012-05-30	ジーエヌリザウンドエー／エス	同期式ステレオ聴覚システム
DE10048341C5 (de) *	2000-09-29	2004-12-23	Siemens Audiologische Technik Gmbh	Verfahren zum Betrieb eines Hörhilfegerätes sowie Hörgeräteanordnung oder Hörhilfegerät
NL1020387C2 (nl) *	2002-04-15	2003-10-17	Gatsometer Bv	Werkwijze voor het op afstand synchroniseren van een verkeersbewakingssyteem en daartoe uitgerust verkeersbewakingssysteem.
DE10245556B3 (de) *	2002-09-30	2004-04-22	Siemens Audiologische Technik Gmbh	Hörhilfegerät oder Hörgerätesystem mit einem Taktgenerator und Verfahren zu deren Betrieb
US20040190737A1 (en) *	2003-03-25	2004-09-30	Volker Kuhnel	Method for recording information in a hearing device as well as a hearing device
DE102004025691B3 (de) *	2004-05-26	2005-08-18	Siemens Audiologische Technik Gmbh	Hörhilfegerät oder Hörgerätesystem mit einer Bedieneinrichtung

2005
- 2005-07-29 DK DK05107054.8T patent/DK1624723T3/da active
- 2005-07-29 EP EP05107054A patent/EP1624723B1/de not_active Expired - Lifetime
- 2005-08-02 US US11/194,932 patent/US7577268B2/en not_active Expired - Fee Related

Also Published As

Publication number	Publication date
US20060023906A1 (en)	2006-02-02
EP1624723A3 (de)	2009-05-20
EP1624723A2 (de)	2006-02-08
DK1624723T3 (da)	2012-09-03
US7577268B2 (en)	2009-08-18

Legal Events

Date	Code	Title	Description
2005-12-23	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
2006-02-08	AK	Designated contracting states	Kind code of ref document: A2 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
2006-02-08	AX	Request for extension of the european patent	Extension state: AL BA HR MK YU
2009-04-17	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
2009-05-20	AK	Designated contracting states	Kind code of ref document: A3 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
2009-05-20	AX	Request for extension of the european patent	Extension state: AL BA HR MK YU
2009-12-23	17P	Request for examination filed	Effective date: 20091117
2010-01-27	AKX	Designation fees paid	Designated state(s): CH DE DK FR GB LI
2011-05-04	17Q	First examination report despatched	Effective date: 20110330
2011-12-03	GRAP	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOSNIGR1
2012-04-16	GRAS	Grant fee paid	Free format text: ORIGINAL CODE: EPIDOSNIGR3
2012-04-27	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
2012-05-30	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): CH DE DK FR GB LI
2012-05-30	REG	Reference to a national code	Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH
2012-05-31	REG	Reference to a national code	Ref country code: CH Ref legal event code: NV Representative=s name: SIEMENS SCHWEIZ AG Ref country code: CH Ref legal event code: EP
2012-07-26	REG	Reference to a national code	Ref country code: DE Ref legal event code: R096 Ref document number: 502005012754 Country of ref document: DE Effective date: 20120726
2012-09-03	REG	Reference to a national code	Ref country code: DK Ref legal event code: T3
2012-10-31	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: GB Payment date: 20120709 Year of fee payment: 8
2012-12-31	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: DE Payment date: 20120906 Year of fee payment: 8 Ref country code: FR Payment date: 20120802 Year of fee payment: 8
2013-01-31	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: CH Payment date: 20121011 Year of fee payment: 8
2013-04-05	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
2013-04-05	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
2013-05-08	26N	No opposition filed	Effective date: 20130301
2013-07-04	REG	Reference to a national code	Ref country code: DE Ref legal event code: R097 Ref document number: 502005012754 Country of ref document: DE Effective date: 20130301
2014-02-24	REG	Reference to a national code	Ref country code: DK Ref legal event code: EBP Effective date: 20130731
2014-02-28	REG	Reference to a national code	Ref country code: CH Ref legal event code: PL
2014-03-26	GBPC	Gb: european patent ceased through non-payment of renewal fee	Effective date: 20130729
2014-04-24	REG	Reference to a national code	Ref country code: DE Ref legal event code: R119 Ref document number: 502005012754 Country of ref document: DE Effective date: 20140201
2014-04-25	REG	Reference to a national code	Ref country code: FR Ref legal event code: ST Effective date: 20140331
2014-04-30	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: 20140201 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20130729 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20130731 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20130731
2014-05-30	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: 20130731
2014-09-30	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: 20130731

Publication	Publication Date	Title
DE102004035256B3 (de)	2005-09-22	Hörhilfegerätesystem sowie Verfahren zum Betrieb eines Hörhilfegerätesystems bei Audio-Empfang
EP2150076B1 (de)	2015-06-24	Verlierschutz für Hörhilfegeräte
EP1379102B1 (de)	2010-08-04	Richtungshören bei binauraler Hörgeräteversorgung
DE102004047759B3 (de)	2006-06-01	Verwendung eines Hörhilfegerätesystems mit wenigstens zwei Hörhilfegeräten
EP1377118B1 (de)	2015-02-25	Hörgerätesystem mit einem Hörgerät und einer externen Prozessoreinheit
EP1737270B2 (de)	2012-05-02	Hörhilfegerät mit Mitteln zur Rückkopplungskompensation
EP3451705A1 (de)	2019-03-06	Verfahren und vorrichtung zum schnellen erkennen der eigenen stimme
DE9321583U1 (de)	2000-05-25	Am Kopf tragbares Hörgerät
EP2229010A2 (de)	2010-09-15	Verfahren zum Kompensieren eines Störschalls bei einer Hörvorrichtung, Hörvorrichtung und Verfahren zum Anpassen derselben
EP1651006A2 (de)	2006-04-26	Hörhilfegerät mit einer Leitungsschleife zur Kompensation induktiver Störfelder
EP1771038B2 (de)	2013-02-27	Verfahren zum Betrieb eines Hörhilfegerätesystems zur binauralen Versorgung eines Benutzers
EP1906702B2 (de)	2014-11-05	Verfahren zur Bedienkontrolle einer Hörvorrichtung und entsprechende Hörvorrichtung
EP1624723B1 (de)	2012-05-30	Stabilisierung des Systemtaktes bei einem Hörhilfegerät
EP2254354A1 (de)	2010-11-24	Verfahren zur Akklimatisierung einer programmierbaren Hörvorrichtung und zugehörige Hörvorrichtung
DE102007001538B4 (de)	2015-02-12	Hörvorrichtung mit automatischer Selbsttrimmung und entsprechendes Verfahren
EP2012509B1 (de)	2010-04-07	Mehrkomponentiges Hörgerätesystem und ein Verfahren zu seinem Betrieb
EP2822300B1 (de)	2017-04-19	Erkennen von Hörsituationen mit unterschiedlichen Signalquellen
DE102010012623B4 (de)	2011-12-08	Verfahren zur Übertragung von Daten zwischen einem Hörgerät und einer externen Einheit sowie zugehörige Anordnung
EP1406468B1 (de)	2010-08-04	Hörhilfegerät oder Hörgerätesystem mit einem Taktgenerator
EP3698556A1 (en)	2020-08-26	A hearing device system and a method for dynamically presenting a hearing device modification proposal to a user of a hearing device
EP1624721A2 (de)	2006-02-08	Frei konfigurierbare Informationssignale bei Hörhilfegeräten
DE102007035173A1 (de)	2009-02-05	Verfahren zum Einstellen eines Hörsystems mit einem perzeptiven Modell für binaurales Hören und entsprechendes Hörsystem
DE102012212172A1 (de)	2013-04-18	Hörhilfeanordnung mit Kalenderfunktion und Verfahren zum Betreiben der Hörhilfeanordnung
DE102008055726A1 (de)	2010-05-12	Hörvorrichtung mit Positionskompensation des Mikrofonsignals und Signalverarbeitungsverfahren
DE102008064382A1 (de)	2010-07-08	Hörvorrichtung mit Transpositionsmöglichkeit und entsprechendes Verfahren