EP2804401A1 - Instrument auditif avec un protocole d'authentification - Google Patents

Instrument auditif avec un protocole d'authentification Download PDF

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Publication number
EP2804401A1
EP2804401A1 EP13167842.7A EP13167842A EP2804401A1 EP 2804401 A1 EP2804401 A1 EP 2804401A1 EP 13167842 A EP13167842 A EP 13167842A EP 2804401 A1 EP2804401 A1 EP 2804401A1
Authority
EP
European Patent Office
Prior art keywords
hearing instrument
broadcasted
message
transmitter
broadcasted message
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
EP13167842.7A
Other languages
German (de)
English (en)
Other versions
EP2804401B1 (fr
Inventor
Brian Dam Pedersen
Peter Siegumfeldt
Hans Henrik Bjørstrup
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.)
GN Hearing AS
Original Assignee
GN Resound AS
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 GN Resound AS filed Critical GN Resound AS
Priority to DK13167842.7T priority Critical patent/DK2804401T3/en
Priority to EP13167842.7A priority patent/EP2804401B1/fr
Priority to US13/896,256 priority patent/US10652673B2/en
Priority to JP2014100754A priority patent/JP6050278B2/ja
Priority to CN201410242451.6A priority patent/CN104168531B/zh
Publication of EP2804401A1 publication Critical patent/EP2804401A1/fr
Application granted granted Critical
Publication of EP2804401B1 publication Critical patent/EP2804401B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H04R25/55—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception using an external connection, either wireless or wired
    • H04R25/554—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception using an external connection, either wireless or wired using a wireless connection, e.g. between microphone and amplifier or using Tcoils
    • 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
    • H04R25/43—Electronic input selection or mixing based on input signal analysis, e.g. mixing or selection between microphone and telecoil or between microphones with different directivity characteristics
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2225/00—Details of deaf aids covered by H04R25/00, not provided for in any of its subgroups
    • H04R2225/55—Communication between hearing aids and external devices via a network for data exchange
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2225/00—Details of deaf aids covered by H04R25/00, not provided for in any of its subgroups
    • H04R2225/61—Aspects relating to mechanical or electronic switches or control elements, e.g. functioning
    • 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
    • H04R25/40—Arrangements for obtaining a desired directivity characteristic
    • H04R25/405—Arrangements for obtaining a desired directivity characteristic by combining a plurality of transducers

Definitions

  • a new hearing instrument is provided with a receiver configured for reception of a broadcasted message and an authenticator configured for authentication of the transmitter of the broadcasted message, and wherein the new hearing instrument is further configured for converting the broadcasted message into an acoustic signal for transmission towards an eardrum of a user of the new hearing instrument upon successful authentication of the transmitter of the broadcasted message.
  • hearing aids are capable of presenting sound received from various sources to a user of the hearing aid.
  • sources include mobile phones, radios, media players, companion microphones, broadcasting systems, e.g. used in a public place, e.g. in a church, an auditorium, a theatre, a cinema, etc., public address systems, e.g. used in a railway station, an airport, a shopping mall, etc., etc.
  • hearing aids For example, it is well known to use a telecoil to magnetically pick up audio signals generated, e.g., by telephones, FM systems (with neck loops), and induction loop systems (also called “hearing loops"), whereby sound may be transmitted to hearing aids with a high signal to noise ratio. More recently, hearing aids have been equipped with radio circuits for reception of radio signals, e.g. replacing or supplementing telecoils, for reception of streamed audio in general, such as streamed music and speech from media players, such as MP3-players, TV-sets, etc. Hearing aids have also emerged that connect with various sources of audio signals through a short-range network, e.g. including Bluetooth technology, e.g. to interconnect the hearing aid with cellular phones, audio headsets, computer laptops, personal digital assistants, digital cameras, etc. Other radio networks have also been suggested, namely HomeRF, DECT, PHS, Wireless LAN (WLAN), or other proprietary networks.
  • WLAN Wireless LAN
  • broadcasted messages such as public announcements, e.g. train, ship or flight departures or delays, with certainty that the transmitter of the broadcasted messages is authentic.
  • a new hearing instrument comprising a radio for reception of a broadcasted message, and an authenticator configured for authentication of a transmitter of the broadcasted message.
  • the hearing instrument is configured for converting the broadcasted message into an acoustic signal for transmission towards an eardrum of a user of the hearing instrument upon successful authentication of the transmitter of the broadcasted message.
  • a method of authenticating broadcasted messages comprising the steps of:
  • a broadcasting system comprising
  • the hearing instrument may be a hearing aid, such as a BTE, RIE, ITE, ITC, CIC, etc, a binaural hearing aid; an Ear-Hook, In-Ear, On-Ear, Over-the-Ear, Behind-the-Neck, Helmet, Headguard, etc, headset, headphone, earphone, ear defender, earmuff, etc.
  • a hearing aid such as a BTE, RIE, ITE, ITC, CIC, etc
  • a binaural hearing aid such as a BTE, RIE, ITE, ITC, CIC, etc
  • Ear-Hook In-Ear
  • On-Ear On-Ear
  • Over-the-Ear Over-the-Ear
  • Behind-the-Neck Helmet, Headguard, etc
  • headset headphone, earphone, ear defender, earmuff, etc.
  • the broadcasted message may be a text message that is converted into speech in the hearing instrument.
  • the broadcasted message is a spoken message.
  • a broadcasted message is a message that can be received by a plurality of receivers in any form it may take from generation of the message, e.g. the acoustic output from a human making an announcement, to transmission towards an eardrum of a user of the hearing, including the digitized message in a form suitable for wireless transmission and in a form suitable for signal processing in the hearing instrument.
  • the hearing instrument may be configured for muting at least one other signal received by the hearing instrument, for example the signal from the microphone(s) of the hearing instrument, during transmission of the broadcasted message towards the eardrum of the user of the hearing instrument, upon successful authentication of the transmitter of the broadcasted message. In this way, the user is allowed to concentrate on announcements while possible distractions are reduced.
  • the hearing instrument may be configured for ignoring the broadcasted message upon failed authentication of the transmitter of the broadcasted message, so that the hearing instrument user will not be bothered with messages from unauthorized transmitters.
  • the hearing instrument may have a mixer with an input connected to an output of the radio receiving the broadcasted message and other inputs connected to other transmitters of audio signals, such as microphone(s) of the hearing instrument, and an output providing an audio signal that is a weighted combination of the audio signals input to the mixer.
  • muting may be performed by setting the weights of other signals than the broadcasted message to zero.
  • ignoring messages from unauthorized transmitters may be performed by setting the weight of the broadcasted message to zero.
  • the hearing instrument may be configured to adjust the weights of the mixer so that other signals currently transmitted to the user are attenuated during transmission of the broadcasted message to the user so that the broadcasted message can be clearly heard by the user without the user simultaneously loosing connection with other signals received by the hearing instrument. For example, attenuation of acoustic signals from the surroundings of the user received by a microphone of the hearing instrument during transmission of the broadcasted message, allows the user to stay connected with the surroundings while simultaneously listening to the broadcasted message.
  • the hearing instrument may simultaneously receive more than one authenticated broadcasted message; i.e. one or more broadcasted messages may be received during ongoing reception of a previous broadcasted message, whereby more than one authenticated broadcasted message may overlap fully or partly in time.
  • broadcasted messages may have assigned priorities and may be transmitted together with information on the priority, e.g. an integer, e.g. larger than or equal to 1, e.g. the lower the integer, the higher the priority.
  • Alarm messages may for example have the highest priority, while traffic announcements may have the second highest priority, and possible commercials may have the lowest priority.
  • Successfully authenticated broadcasted messages may be presented to the hearing instrument user one at the time in their order of priority, e.g. an authenticated broadcasted message of highest priority may be transmitted to the hearing instrument user without delay, while other broadcasted messages are stored intermediately for subsequent presentation to the hearing instrument user in their order of priority.
  • successfully authenticated broadcasted messages may be presented to the hearing instrument user one at the time in the same order in which they have been received by the hearing instrument.
  • successfully authenticated broadcasted messages may be transmitted to the user of the hearing instrument with substantially unchanged timing with relation to each other.
  • the mixer may treat each individual successfully authenticated broadcasted message as a separate input to the mixer similar to other audio transmitters input to the mixer as explained above.
  • the individual successfully authenticated broadcasted messages may be weighted in the mixer, e.g. according to their priority.
  • the hearing instrument may be configured to always mute one or more other signals received by the hearing instrument during transmission of a broadcasted message of highest priority towards the eardrum of the user of the hearing instrument.
  • the hearing instrument may have a user interface, e.g. a push button, a remote control, etc. so that the user can switch muting of other signals on and off as desired in order to be able to or not be able to, respectively, continue to listen to other sound signals while receiving a broadcast, as desired.
  • a user interface e.g. a push button, a remote control, etc.
  • the user interface may further include means for user adjustment of the weights of the combination of the input audio signals, such as a dial, or a push button for incremental adjustment.
  • an electronic signature uniquely identifying the transmitter of the broadcasted message may be included in the broadcasted message.
  • the electronic signature is encrypted for secure authentication of the transmitter of the broadcasted message.
  • the electronic signature may include a digital certificate issued by a certificate authority.
  • the electronic signature may include a hash code, such as a message authentication code, in order for the hearing instrument to be able to authenticate the transmitter of the broadcasted message in a cryptographically simple way.
  • a hash code such as a message authentication code
  • Signal processing in the new hearing instrument may be performed by dedicated hardware or may be performed in one or more signal processors, or performed in a combination of dedicated hardware and one or more signal processors.
  • processor As used herein, the terms "processor”, “signal processor”, etc., are intended to refer to CPU-related entities, either hardware, a combination of hardware and software, software, or software in execution.
  • a "processor”, “signal processor”, etc. may be, but is not limited to being, a process running on a processor, a processor, an object, an executable file, a thread of execution, and/or a program.
  • processor designate both an application running on a processor and a hardware processor.
  • processors may reside within a process and/or thread of execution, and one or more "processors”, “signal processors”, etc., or any combination hereof, may be localized on one hardware processor, possibly in combination with other hardware circuitry, and/or distributed between two or more hardware processors, possibly in combination with other hardware circuitry.
  • Fig. 1 schematically illustrates exemplary hearing instrument circuitry 10 of the new hearing instrument.
  • the illustrated new hearing instrument is a hearing aid that may be of any suitable mechanical design, e.g. to be worn in the ear canal, or partly in the ear canal, behind the ear or in the concha, such as the well-known types: BTE, ITE, ITC, CIC, etc.
  • the illustrated hearing instrument circuitry 10 comprises a front microphone 12 and a rear microphone 14 for conversion of an acoustic sound signal from the surroundings into corresponding microphone audio signals 16, 18 output by the microphones 14, 16.
  • the microphone audio signals 16, 18 are digitized in respective A/D converters 20, 22 for conversion of the respective microphone audio signals 16, 18 into respective digital microphone audio signals 24, 26 that are optionally pre-filtered (pre-filters not shown) and combined in signal combiner 28, for example for formation of a digital microphone audio signal 30 with directionality as is well-known in the art of hearing instruments.
  • the digital microphone audio signal 30 is input to the mixer 32 configured to output a weighted sum 34 of signals input to the mixer 32.
  • the mixer output 34 is input to a hearing loss processor 36 configured to generate a hearing loss compensated output signal 38 based on the mixer output 34.
  • the hearing loss compensated output signal 38 is input to a receiver 40 for conversion into acoustic sound for transmission towards an eardrum (not shown) of a user of the hearing instrument.
  • the illustrated hearing instrument circuitry 10 is further configured to receive digital audio from various transmitters, such as mobile phones, radios, media players, companion microphones, broadcasting systems, such as in a public place, e.g. in a church, an auditorium, a theatre, a cinema, etc., public address systems, such as in a railway station, an airport, a shopping mall, etc., etc.
  • various transmitters such as mobile phones, radios, media players, companion microphones, broadcasting systems, such as in a public place, e.g. in a church, an auditorium, a theatre, a cinema, etc., public address systems, such as in a railway station, an airport, a shopping mall, etc., etc.
  • digital audio including broadcasted spoken messages
  • the radio receiver retrieves the digital data 46 from the received radio signal, including the digital audio, possible transmitter identifiers, possible network control signals, etc.
  • Signal extractor 48 extracts the digital audio 50 from the received digital data 46 and forwards the digital audio 50 to the mixer 32.
  • the digital audio 50 may include audio from a plurality of sources and thus, the digital audio 50 may form a plurality of input signals for the mixer 32, one input signal for each source of audio.
  • digital data of the broadcasted message also contains data 52 relating to the identity of the transmitter of the broadcasted message.
  • the signal extractor 48 extracts these data 52 from the digital data and forwards them to authenticator 54 that is configured to authenticate the transmitter of the broadcasted message as will be further explained below.
  • Output authentication signal 56 forms a control input to the mixer 32 for control of the weights of the sum of mixer input signals.
  • the corresponding weight is set to zero in the mixer 32 so that the broadcasted message 62 is not transmitted to the user; rather the broadcasted message 62 is ignored.
  • the broadcasted message is transmitted to the user while the other signals are attenuated during transmission of the broadcasted message.
  • the other signals may also be muted.
  • the user may enter a command through a user interface of the hearing instrument of a type well-known in the art, controlling whether the other signals are muted or attenuated.
  • the hearing instrument may simultaneously receive more than one authenticated broadcasted message; i.e. one or more broadcasted messages may be received during ongoing reception of a previous broadcasted message, whereby more than one authenticated broadcasted message may overlap fully or partly in time.
  • broadcasted messages may have assigned priorities and may be transmitted together with information on the priority, e.g. an integer, e.g. larger than or equal to 1, e.g. the lower the integer, the higher the priority.
  • Alarm messages may for example have the highest priority, while traffic announcements may have the second highest priority, and possible commercials may have the lowest priority.
  • Successfully authenticated broadcasted messages may be handled by the mixer 32 as separate inputs like the other inputs to the mixer, whereby the mixer includes the individual broadcasted messages in the weighted sum of inputs output to the processor 36, whereby the broadcasted messages are transmitted to the user with substantially unchanged timing with relation to each other.
  • successfully authenticated broadcasted messages may be transmitted to the hearing instrument user one at the time.
  • the mixer 32 may have memories for storage of broadcasted messages received during ongoing reception of a previous broadcasted message. Stored broadcasted messages may then be input to the mixer subsequent to finalized output of the previous broadcasted message of the mixer 32 in the same order in which they have been received by the hearing instrument; or, in order of priority, for inclusion in the output of the mixer 32 provided that the broadcasted message in question is successfully authenticated.
  • the hearing instrument may be configured to always mute one or more other signals received by the hearing instrument during transmission of a broadcasted message of highest priority towards the eardrum of the user of the hearing instrument.
  • Fig. 2 illustrates exemplary principles of operation of the authenticator 54 shown in Fig. 1 .
  • the transmitter 60 of broadcasted messages 62 may emit aural messages, such as departure announcements in an airport.
  • the broadcasted message 62 is transmitted wirelessly and in digital form to a plurality of receivers.
  • the message 62 is illustrated in digital form in Fig. 2 .
  • a message authentication algorithm 64 is used to calculate a message authentication code (MAC) 66 from the digitized message 62 in order to authenticate the transmitter 60 of the message 62 and thereby reduce the risk of spoofing.
  • the MAC algorithm 64 implements a cryptographic hash function having a private key as one input and a message of arbitrary length as another input.
  • the MAC algorithm 64 outputs a MAC 66, for example as specified in the various existing standards, such as ISO/IEC 9797-1 and -2 that define MAC algorithms.
  • the message 62 and the MAC 66 are then transmitted together wirelessly as indicated at 68 to various receivers, one of which resides in one of the new hearing instruments.
  • the authenticator 54 of the new hearing instrument inputs the received message 62 to the same MAC algorithm 64 as used by the transmitter 60 and uses the same private key to calculate a MAC 72 in the authenticator 54.
  • the authenticator 54 compares the transmitted MAC 66 to the MAC 72 calculated in the authenticator 54, and If the two MACs are identical, the transmitter 60 of the broadcasted message 62 is authenticated, and so is the message 62, since the private keys and the messages input to the MAC algorithms 64, respectively, have to be identical in order to generate identical MAC codes 66, 72.
  • the output 56 of the authenticator 54 is used to control the weights of the mixer 32 in response to the result of the authentication process as already explained with reference to Fig. 1 .
  • the authentication process illustrated in principle in Fig. 2 is relatively simple and suitable for implementation in a hearing instrument.
  • the private key has to be distributed to all possible receivers of broadcasted messages from the transmitter in question. Obviously, the distribution of the private key has to be performed with care, since anyone in possession of the private key will be able to generate messages that will be successfully authenticated in the new hearing instruments.
  • Fig. 3 illustrates another exemplary principle of operation of the authenticator 54 shown in Fig. 1 in which the private key is only in possession of the authentic transmitter.
  • the transmitter 80 of broadcasted messages 82 may emit aural messages, such as departure announcements in an airport.
  • the broadcasted message 82 is transmitted wirelessly and in digital form to a plurality of receivers.
  • the message 82 is illustrated in digital form in Fig. 3 .
  • the message 82 is authenticated using an asymmetric encryption scheme, e.g. a digital signature scheme, with a key pair in which one key is the private key that is in possession of the transmitter 80 to be authenticated.
  • the private key is used to encrypt the message 82 into a digital signature 88.
  • the other key is a public key that is distributed to the intended receivers of messages broadcasted by the transmitter 80 and used to decrypt the digital signature for authentication.
  • a hashing algorithm 84 calculates a hash code from the digital message 82 and outputs the hash code to an encryption algorithm 86 that uses the private key to encrypt the hash code into a digital signature 88 in order to authenticate the transmitter 80 of the message 82 and thereby reduce the risk of spoofing.
  • the message 82 and the digital signature 88 are then transmitted together wirelessly as indicated at 90 to various receivers, one of which resides in one of the new hearing instruments.
  • the authenticator 54 of the new hearing instrument inputs the received message 82 to the same hashing function 84 as used by the transmitter 80 to calculate a hash code 94 in the authenticator 54. Further, the authenticator 54 uses decryption algorithm 96 with the public key to decrypt the digital signature 88 into the hash code 98.
  • the authenticator 54 compares the hash code 94 with the hash code 98, and if the hash codes 94, 98 are identical, the transmitter 80 of the broadcasted message 82 is authenticated, and so is the message 82, since the private key has to be used in order for the public key to decrypt the digital signature 88 into the correct hash code 98, and the received and transmitted messages have to be identical for the hashing algorithm 84 to output the same hash code.
  • the output 56 of the authenticator 54 is used to control the weights of the mixer 32 in response to the result of the authentication process as already explained with reference to Fig. 1 .
  • the authentication scheme of Fig. 3 is somewhat more complex than the authentication scheme of Fig. 2 ; however the authentication scheme of Fig. 3 does not require distribution of a private key.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Headphones And Earphones (AREA)
EP13167842.7A 2013-05-15 2013-05-15 Instrument auditif avec un protocole d'authentification Active EP2804401B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DK13167842.7T DK2804401T3 (en) 2013-05-15 2013-05-15 A hearing instrument with an authentication protocol
EP13167842.7A EP2804401B1 (fr) 2013-05-15 2013-05-15 Instrument auditif avec un protocole d'authentification
US13/896,256 US10652673B2 (en) 2013-05-15 2013-05-16 Hearing instrument with an authentication protocol
JP2014100754A JP6050278B2 (ja) 2013-05-15 2014-05-14 認証プロトコルを備える聴覚器具
CN201410242451.6A CN104168531B (zh) 2013-05-15 2014-05-15 具有验证协议的听力仪器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13167842.7A EP2804401B1 (fr) 2013-05-15 2013-05-15 Instrument auditif avec un protocole d'authentification

Publications (2)

Publication Number Publication Date
EP2804401A1 true EP2804401A1 (fr) 2014-11-19
EP2804401B1 EP2804401B1 (fr) 2018-11-21

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EP13167842.7A Active EP2804401B1 (fr) 2013-05-15 2013-05-15 Instrument auditif avec un protocole d'authentification

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EP (1) EP2804401B1 (fr)
DK (1) DK2804401T3 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3236674A1 (fr) 2016-04-19 2017-10-25 Sonova AG Appareil auditif comprenant des fonctions de securite de cle publique et divers systeme le comprenant
EP3032845B1 (fr) 2014-12-12 2020-02-05 GN Hearing A/S Dispositif d'aide auditive apte à authentifier une demande de changer un mode de service et procédé associé
WO2021077135A1 (fr) * 2019-10-14 2021-04-22 Starkey Laboratories, Inc. Système d'aide auditive avec mémoire de boucle auditive automatique
US11206496B2 (en) 2014-12-12 2021-12-21 Gn Hearing A/S Hearing device with service mode and related method
US12126962B2 (en) 2020-10-14 2024-10-22 Starkey Laboratories, Inc. Hearing assistance system with automatic hearing loop memory

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060274747A1 (en) * 2005-06-05 2006-12-07 Rob Duchscher Communication system for wireless audio devices
EP2337377A1 (fr) * 2009-12-17 2011-06-22 Oticon A/S Système de sonorisation assistée adapté à une utilisation DECT
EP2528358A1 (fr) * 2011-05-23 2012-11-28 Oticon A/S Procédé d'identification d'un canal de communication sans fil dans un système sonore

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060274747A1 (en) * 2005-06-05 2006-12-07 Rob Duchscher Communication system for wireless audio devices
EP2337377A1 (fr) * 2009-12-17 2011-06-22 Oticon A/S Système de sonorisation assistée adapté à une utilisation DECT
EP2528358A1 (fr) * 2011-05-23 2012-11-28 Oticon A/S Procédé d'identification d'un canal de communication sans fil dans un système sonore

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3032845B1 (fr) 2014-12-12 2020-02-05 GN Hearing A/S Dispositif d'aide auditive apte à authentifier une demande de changer un mode de service et procédé associé
US11206496B2 (en) 2014-12-12 2021-12-21 Gn Hearing A/S Hearing device with service mode and related method
US11546699B2 (en) 2014-12-12 2023-01-03 Gn Hearing A/S Hearing device with service mode and related method
EP3236674A1 (fr) 2016-04-19 2017-10-25 Sonova AG Appareil auditif comprenant des fonctions de securite de cle publique et divers systeme le comprenant
WO2021077135A1 (fr) * 2019-10-14 2021-04-22 Starkey Laboratories, Inc. Système d'aide auditive avec mémoire de boucle auditive automatique
US12126962B2 (en) 2020-10-14 2024-10-22 Starkey Laboratories, Inc. Hearing assistance system with automatic hearing loop memory

Also Published As

Publication number Publication date
DK2804401T3 (en) 2019-03-11
EP2804401B1 (fr) 2018-11-21

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