DK201370266A1 - Hearing instrument with an authentication protocol - Google Patents
Hearing instrument with an authentication protocol Download PDFInfo
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- DK201370266A1 DK201370266A1 DK201370266A DKPA201370266A DK201370266A1 DK 201370266 A1 DK201370266 A1 DK 201370266A1 DK 201370266 A DK201370266 A DK 201370266A DK PA201370266 A DKPA201370266 A DK PA201370266A DK 201370266 A1 DK201370266 A1 DK 201370266A1
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Abstract
Description
HEARING INSTRUMENT WITH AN AUTHENTICATION PROTOCOL FIELD OF TECHNOLOGY 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 INSTRUMENT WITH AN AUTHENTICATION PROTOCOL FIELD OF TECHNOLOGY A new hearing instrument is provided with a receiver configured for reception of a broadcast message and an authenticator configured for authentication of the transmitter of the broadcast message, and the new hearing instrument is further configured for converting the broadcast 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 broadcast message.
BACKGROUNDBACKGROUND
Recently hearing aids have emerged that are capable of presenting sound received from various sources to a user of the hearing aid. Examples of 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.Recently hearing aids have emerged that are capable of presenting sound received from various sources to a user of the hearing aid. Examples of 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 theater, a cinema, etc., public address systems, e.g. used in a railway station, an airport, a shopping mall, etc., etc.
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.For example, it is well known to use a telecoil to magnetically pick up audio signals generated, eg, 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, eg 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.
SUMMARYSUMMARY
In some situations, for example in a public place, it is desirable for a user wearing a hearing instrument to be able to listen to 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.In some situations, for example in a public place, it is desirable for a user wearing a hearing instrument to be able to listen to broadcast messages, such as public announcements, e.g. train, ship or flight departures or delays, with certainty that the transmitter of the broadcast messages is authentic.
Thus, there is a need for a hearing instrument capable of authentication of a transmitter of broadcasted messages.Thus, there is a need for a hearing instrument capable of authenticating a transmitter of broadcast messages.
Accordingly, a new hearing instrument is provided 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 is also provided, comprising the steps of: generating a signature, e.g. by encryption, identifying a transmitter of a message to be broadcasted by the transmitter, transmitting the signature together with the message,Accordingly, a new hearing instrument is provided comprising a radio for reception of a broadcast message, and an authenticator configured for authentication of a transmitter of the broadcast message. The hearing instrument is configured to convert the broadcast 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 broadcast message. A method of authenticating broadcast messages is also provided, comprising the steps of: generating a signature, e.g. by encryption, identifying a transmitter of a message to be broadcast by the transmitter, transmitting the signature together with the message,
In a device receiving the broadcasted message; authenticating the transmitter of the broadcasted message based on the transmitted signature, converting the broadcasted message into an acoustic signal for transmission towards an eardrum of a human upon successful authentication of the transmitter of the broadcasted message.In a device receiving the broadcast message; authenticating the transmitter of the broadcast message based on the transmitted signature, converting the broadcast message into an acoustic signal for transmission towards an eardrum of a human upon successful authentication of the transmitter of the broadcast message.
Further, a broadcasting system is provided, comprising a transmitter configured for broadcasting a message to a plurality of receivers, comprising an encoder configured for encoding a signature identifying the transmitter for transmission together with messages to be broadcasted, and a hearing instrument comprising a radio for reception of the broadcasted message, an authenticator configured for authentication of the transmitter of the broadcasted message, and wherein the hearing instrument is further 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.Further, a broadcasting system is provided, comprising a transmitter configured for broadcasting a message to a plurality of receivers, comprising an encoder configured for encoding a signature identifying the transmitter for transmission together with messages to be broadcast, and a hearing instrument comprising a radio for reception of the broadcast message, an authenticator configured for authentication of the transmitter of the broadcast message, and the hearing instrument is further configured to convert the broadcast 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 broadcast message.
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.The hearing instrument may be a hearing aid, such as a BTE, RIE, ITE, ITC, CIC, etc, a binaural hearing aid; and Ear-Hook, In-Ear, On-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. Preferably, the broadcasted message is a spoken message.The broadcast message may be a text message that is converted into speech in the hearing instrument. Preferably, the broadcast message is a spoken message.
Throughout the present disclosure 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.Throughout the present disclosure a broadcast 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 to mutate at least one other signal received by the hearing instrument, for example, the signal from the hearing instrument microphone (s), during transmission of the broadcast message towards the eardrum of the hearing instrument user , upon successful authentication of the transmitter of the broadcast 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 be configured to ignore the broadcast message upon failed authentication of the transmitter of the broadcast 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.The hearing instrument may have a mixer with an input connected to an output of the radio receiving the broadcast 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.
In the mixer, muting may be performed by setting the weights of other signals than the broadcasted message to zero.In the mixer, muting may be performed by setting the weights of signals other than the broadcast message to zero.
In the mixer, ignoring messages from unauthorized transmitters may be performed by setting the weight of the broadcasted message to zero.In the mixer, ignoring messages from unauthorized transmitters may be performed by setting the weight of the broadcast message to zero.
In the event that the authenticator does successfully authenticate the transmitter of the broadcasted message, 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.In the event that the authenticator successfully authenticates the transmitter of the broadcast message, 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 broadcast message to the user. that the broadcast 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 broadcast message allows the user to stay connected with the surroundings while simultaneously listening to the broadcast 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.The hearing instrument may simultaneously receive more than one authenticated broadcast message; i.e. one or more broadcast messages may be received during ongoing reception of a previous broadcast message, whereby more than one authenticated broadcast message may overlap fully or partially in time.
Such a situation may be handled in various ways. For example, 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.Such a situation may be handled in various ways. For example, broadcast messages may have assigned priorities and may be transmitted together with information on the priority, e.g. and integers, e.g. greater than or equal to 1, e.g. the lower the integer, the higher the priority. For example, alarm messages may 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 broadcast messages may be presented to the hearing instrument user one at a time in their order of priority, e.g. an authenticated broadcast message of highest priority may be transmitted to the hearing instrument user without delay, while other broadcast messages are stored intermediate for subsequent presentation to the hearing instrument user in their order of priority.
Alternatively, 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.Alternatively, successfully authenticated broadcast messages may be presented to the hearing instrument user one at a time in the same order in which they have been received by the hearing instrument.
Alternatively, 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.Alternatively, successfully authenticated broadcast messages may be transmitted to the user of the hearing instrument with substantially unchanged timing related to each other. The mixer may treat each individual successfully authenticated broadcast message as a separate input to the mixer similar to other audio transmitters input to the mixer as explained above. The individual successfully authenticated broadcast 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 be configured to always mute one or more other signals received by the hearing instrument during transmission of a broadcast of highest priority to the hearing instrument user's eardrum.
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.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 or unable to, respectively, continue to listen to other sound signals while receiving a broadcast , as desired.
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.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.
In order for the hearing instrument to be able to authenticate the transmitter of a broadcasted message, an electronic signature uniquely identifying the transmitter of the broadcasted message may be included in the broadcasted message.In order for the hearing instrument to be able to authenticate the transmitter of a broadcast message, an electronic signature uniquely identifying the transmitter of the broadcast message may be included in the broadcast message.
Preferably, the electronic signature is encrypted for secure authentication of the transmitter of the broadcasted message.Preferably, the electronic signature is encrypted for secure authentication of the transmitter of the broadcast message.
The electronic signature may include a digital certificate issued by a certificate authority.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.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 broadcast message in a cryptographically simple way.
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.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.
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. Also, the term "processor" may refer to any integrated circuit configured to perform one or more functions.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. Also, the term "processor" may refer to any integrated circuit configured to perform one or more functions.
For example, 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.For example, a "processor", "signal processor", etc., may be, but is not limited to, a process running on a processor, a processor, an object, an executable file, a thread of execution, and / or a program.
Byway of illustration, the terms "processor", "signal processor", etc., designate both an application running on a processor and a hardware processor. One or more "processors", "signal processors", and the like, or any combination hereof, 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. A hearing instrument includes: a radio for reception of a broadcasted message; an authenticator configured for authentication of a transmitter of the broadcasted message; and a receiver 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.Byway of illustration, the terms "processor", "signal processor", etc., design both an application running on a processor and a hardware processor. One or more "processors", "signal processors", and the like, or any combination hereof, 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. A hearing instrument includes: a radio for reception of a broadcast message; an authenticator configured for authentication of a transmitter of the broadcast message; and a receiver configured to convert the broadcast 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 broadcast message.
Optionally, the hearing instrument is further configured for muting at least one other signal received by the hearing instrument upon successful authentication of the transmitter of the broadcasted messageOptionally, the hearing instrument is further configured to mutate at least one other signal received by the hearing instrument upon successful authentication of the transmitter of the broadcast message
Optionally, the hearing instrument further includes a mixer configured for mixing the broadcasted message with at least one other signal received by the hearing instrument to obtain a mixed output upon successful authentication of the transmitter of the broadcasted message, wherein receiver is configured for converting the mixed output into the acoustic signal for transmission towards the eardrum of the user of the hearing instrument.Optionally, the hearing instrument further includes a mixer configured to mix the broadcast message with at least one other signal received by the hearing instrument to obtain a mixed output upon successful authentication of the transmitter of the broadcast message, this receiver is configured to convert the mixed output into the acoustic signal for transmission towards the eardrum of the user of the hearing instrument.
Optionally, the hearing instrument is further configured for ignoring the broadcasted message upon failed authentication of the transmitter of the broadcasted message.Optionally, the hearing instrument is further configured to ignore the broadcast message upon failed authentication of the transmitter of the broadcast message.
Optionally, the hearing instrument further includes a mixer configured for mixing the broadcasted message and one or more additional broadcasted messages to obtain a mixed output upon successful authentication of the transmitter of the broadcasted message and transmitter(s) of the one or more additional broadcasted messages, wherein the broadcasted message and a subset of the one or more additional broadcasted messages are received simultaneously by the hearing instrument, and wherein the receiver is configured for converting the mixed output into the acoustic signal for transmission towards the eardrum of the user of the hearing instrument.Optionally, the hearing instrument further includes a mixer configured to mix the broadcast message and one or more additional broadcast messages to obtain a mixed output upon successful authentication of the transmitter of the broadcast message and transmitter (s) of the one or more additional broadcast messages , where the broadcast message and a subset of the one or more additional broadcast messages are received simultaneously by the hearing instrument, and the receiver is configured to convert the mixed output into the acoustic signal for transmission towards the eardrum of the hearing user instrument.
Optionally, the hearing instrument further includes a medium for storing another broadcasted message that is received during transmission of the acoustic signal towards the eardrum of the user of the hearing instrument.Optionally, the hearing instrument further includes a medium for interrupting another broadcast message received during transmission of the acoustic signal towards the eardrum of the user of the hearing instrument.
Optionally, the receiver is configured for converting the stored broadcasted message into another acoustic signal for transmission towards the eardrum of the user of the hearing instrument.Optionally, the receiver is configured to convert the stored broadcast message into another acoustic signal for transmission towards the hearing instrument user's eardrum.
Optionally, the broadcasted message and the other broadcasted message are converted into the respective acoustic signals for transmission towards the eardrum of the user of the hearing instrument in an order in which they are received by the hearing instrument.Optionally, the broadcast message and the other broadcast message are converted into the respective acoustic signals for transmission towards the eardrum of the user of the hearing instrument in an order in which they are received by the hearing instrument.
Optionally, the broadcasted message and the other broadcasted message are converted into the respective acoustic signals for transmission towards the eardrum of the user of the hearing instrument in an order of priority.Optionally, the broadcast message and the other broadcast message are converted into the respective acoustic signals for transmission towards the eardrum of the user of the hearing instrument in an order of priority.
Optionally, the authenticator is further configured for verifying an electronic signature included in the broadcasted message.Optionally, the authenticator is further configured to verify an electronic signature included in the broadcast message.
Optionally, the authenticator is further configured for decrypting an encrypted message included in the broadcasted message for authentication of the transmitter of the broadcasted message.Optionally, the authenticator is further configured to decrypt an encrypted message included in the broadcast message for authentication of the transmitter of the broadcast message.
Optionally, the authenticator is further configured for decoding a hash code included in the broadcasted message for authentication of the transmitter of the broadcasted message. A method performed by a hearing instrument includes: receiving a broadcasted message and a signature, wherein the signature identifies a transmitter of the broadcasted message; authenticating the transmitter of the broadcasted message based on the signature; and converting the broadcasted message into an acoustic signal for transmission towards an eardrum of a human upon successful authentication of the transmitter of the broadcasted message.Optionally, the authenticator is further configured to decode a hash code included in the broadcast message for authentication of the transmitter of the broadcast message. A method performed by a hearing instrument includes: receiving a broadcast message and a signature, while the signature identifies a transmitter of the broadcast message; authenticating the transmitter of the broadcast message based on the signature; and converting the broadcast message into an acoustic signal for transmission towards an eardrum of a human upon successful authentication of the transmitter of the broadcast message.
Optionally, the signature is encrypted when received by the hearing instrument, and the act of authenticating comprises decrypting the encrypted signature. A broadcasting system includes: a transmitter configured for broadcasting a message, the transmitter comprising an encoder configured for encoding a signature identifying the transmitter for transmission together with message to be broadcasted, and a hearing instrument comprising: a radio for reception of the broadcasted message, and an authenticator configured for authentication of the transmitter of the broadcasted message, wherein 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.Optionally, the signature is encrypted when received by the hearing instrument, and the act of authenticating involves decrypting the encrypted signature. A broadcasting system includes: a transmitter configured for broadcasting a message, the transmitter comprising an encoder configured for encoding a signature identifying the transmitter for transmission together with message to be broadcast, and a hearing instrument comprising: a radio for reception of the broadcasted message, and an authenticator configured for authentication of the transmitter of the broadcast message, whereas the hearing instrument is configured to convert the broadcast 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.
Other and further aspects and features will be evident from reading the following detailed description.Other and further aspects and features will be evident from reading the following detailed description.
BRIEF DESCRIPTION OF THE DRAWINGSLETTER DESCRIPTION OF THE DRAWINGS
The drawings illustrate the design and utility of various features described herein, in which similar elements are referred to by common reference numerals. These drawings are not necessarily drawn to scale. In order to better appreciate how the above-recited and other advantages and objects are obtained, a more particular description will be rendered, which are illustrated in the accompanying drawings. These drawings depict only exemplary features and are not therefore to be considered limiting in the scope of the claims.The drawings illustrate the design and utility of various features described herein, in which similar elements are referred to by common reference numerals. These drawings are not necessarily drawn to scale. In order to better appreciate how the above-mentioned and other advantages and objects are obtained, a more specific description will be rendered, which is illustrated in the accompanying drawings. These drawings depict only exemplary features and are therefore not considered to be limiting in the scope of the claims.
Fig. 1 schematically illustrates electronic circuitry of the new hearing instrument,FIG. 1 schematically illustrates electronic circuitry of the new hearing instrument,
Fig. 2 schematically illustrates operation of the authenticator utilizing message authentication codes, andFIG. 2 schematically illustrates operation of the authenticator utilizing message authentication codes, and
Fig. 3 schematically illustrates operation of the authenticator utilizing digital certificates. DETAILED DESCRIPTIONFIG. 3 schematically illustrates operation of the authenticator utilizing digital certificates. DETAILED DESCRIPTION
Various features are described hereinafter with reference to the figures. It should be noted that the figures are not drawn to scale and that the elements of similar structures or functions are represented by like reference numerals throughout the figures. It should be noted that the figures are only intended to facilitate the description of the features. They are not intended as an exhaustive description of the claimed invention or as a limitation on the scope of the claimed invention. In addition, an illustrated feature needs not have all the aspects or advantages shown. An aspect or an advantage described in conjunction with a particular feature is not necessarily limited to that feature and can be practiced in any other features even if not so illustrated, or if not so explicitly described.Various features are described hereinafter with reference to the figures. It should be noted that the figures are not drawn to scale and that the elements of similar structures or functions are represented by similar reference numerals throughout the figures. It should be noted that the figures are only intended to facilitate the description of the features. They are not intended as an exhaustive description of the claimed invention or as a limitation on the scope of the claimed invention. In addition, an illustrated feature need not have all the aspects or advantages shown. An aspect or advantage described in conjunction with a particular feature is not necessarily limited to that feature and can be practiced in any other feature even if not so illustrated, or if not so explicitly described.
The new method and hearing instrument will now be described more fully hereinafter with reference to the accompanying drawings, in which various examples of the new method and hearing instrument are illustrated. The new method and hearing instrument according to the appended claims may, however, be embodied in different forms and should not be construed as limited to the examples set forth herein.The new method and hearing instrument will now be described more fully hereinafter with reference to the accompanying drawings, in which various examples of the new method and hearing instrument are illustrated. However, the new method and hearing instrument according to the appended claims may be embodied in different forms and should not be construed as limited to the examples set forth herein.
It should be noted that the accompanying drawings are schematic and simplified for clarity, and they merely show details which are essential to the understanding of the new method and hearing instrument, while other details have been left out.It should be noted that the accompanying drawings are schematic and simplified for clarity, and they merely show details which are essential to the understanding of the new method and hearing instrument, while other details have been left out.
Like reference numerals refer to like elements throughout. Like elements will, thus, not be described in detail with respect to the description of each figure.Like reference numerals refer to like elements throughout. Like elements, thus, will not be described in detail with respect to the description of each figure.
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.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 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 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.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 theater, a cinema, etc., public address systems, such as a railway station, an airport, a shopping mall, etc., etc.
In the illustrated example, digital audio, including broadcasted spoken messages, is transmitted wirelessly to the hearing instrument and received by the hearing instrument antenna 42 connected to a radio receiver 44. 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.In the illustrated example, digital audio, including broadcasted spoken messages, is transmitted wirelessly to the hearing instrument and received by the hearing instrument antenna 42 connected to a radio receiver 44. 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.
As further explained below, 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.As further explained below, digital data of the broadcast message also contains data 52 related to the identity of the transmitter of the broadcast message. The signal extractor 48 extracts this data 52 from the digital data and forwards them to authenticator 54 which is configured to authenticate the transmitter of the broadcast 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.
In the event that the transmitter of the broadcasted message cannot be authenticated, 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.In the event that the transmitter of the broadcast message cannot be authenticated, the corresponding weight is set to zero in the mixer 32 so that the broadcast message 62 is not transmitted to the user; rather the broadcast message 62 is ignored.
In the event that the transmitter of the broadcasted message is authenticated, 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.In the event that the transmitter of the broadcast message is authenticated, the broadcast message is transmitted to the user while the other signals are attenuated during transmission of the broadcast 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 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.The hearing instrument may simultaneously receive more than one authenticated broadcast message; i.e. one or more broadcast messages may be received during ongoing reception of a previous broadcast message, whereby more than one authenticated broadcast message may overlap fully or partially in time.
Such a situation may be handled in various ways. For example, 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.Such a situation may be handled in various ways. For example, broadcast messages may have assigned priorities and may be transmitted together with information on the priority, e.g. and integers, e.g. greater than or equal to 1, e.g. the lower the integer, the higher the priority. For example, alarm messages may 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 broadcast messages may be handled by the mixer 32 as separate inputs like the other inputs to the mixer, wherein the mixer includes the individual broadcast messages in the weighted sum of inputs output to the processor 36, wherein the broadcast messages are transmitted to the user with substantially unchanged timing with relation to each other.
Alternatively, successfully authenticated broadcasted messages may be transmitted to the hearing instrument user one at the time.Alternatively, successfully authenticated broadcast messages may be transmitted to the hearing instrument user one at a time.
The mixer 32 may have one or more media (e.g., one or more memories) for storage of broadcasted messages received during ongoing reception of a previous broadcasted message. A medium may be a non-transitory medium in some embodiments. 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 mixer 32 may have one or more media (e.g., one or more memories) for storage of broadcast messages received during ongoing reception of a previous broadcast message. A medium may be a non-transitory medium in some embodiments. Stored broadcast messages may then be input to the mixer subsequent to finalized output of the previous broadcast message of 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 mixer 32 provided that the broadcast 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.The hearing instrument may be configured to always mute one or more other signals received by the hearing instrument during transmission of a broadcast of highest priority to the hearing instrument user's eardrum.
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.FIG. 2 illustrates exemplary principles of operation of the authenticator 54 shown in FIG. 1. The transmitter 60 of broadcast messages 62 may emit aural messages, such as departure announcements in an airport. The broadcast 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. As illustrated by process 70, 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 then 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 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. As illustrated by process 70, 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 then the transmitted MAC 66 compares to the MAC 72 calculated in the authenticator 54, and If the two MACs are identical, the transmitter 60 of the broadcast 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 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. First
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.The authentication process illustrated in principle in FIG. 2 is relatively simple and suitable for implementation in a hearing instrument. The private key has been distributed to all possible receivers of broadcast 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.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.
As in Fig. 2, 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.As shown in FIG. 2, the transmitter 80 of broadcast messages 82 may emit aural messages, such as departure announcements in an airport. The broadcast message 82 is transmitted wirelessly and in digital form to a plurality of receivers. The message 82 is illustrated in digital form in FIG. Third
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.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 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 distributed to the intended recipients of messages broadcast 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 which 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 reducing 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. As illustrated by process 92, 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 then 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 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. As illustrated by process 92, 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 then compares the hash code 94 with the hash code 98, and if the hash codes 94, 98 are identical, the transmitter 80 of the broadcast message 82 is authenticated, and so is message 82, since the private key has been 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. First
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.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.
Although particular features have been shown and described, it will be understood that they are not intended to limit the claimed invention, and it will be made obvious to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the claimed invention. The specification and drawings are, accordingly to be regarded in an illustrative rather than restrictive sense. The claimed invention is intended to cover all alternatives, modifications and equivalents.Although particular features have been shown and described, it will be understood that they are not intended to limit the claimed invention, and it will be made obvious to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the claimed invention. The specification and drawings are accordingly considered in an illustrative rather than restrictive sense. The claimed invention is intended to cover all alternatives, modifications and equivalents.
Claims (15)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK201370266A DK201370266A1 (en) | 2013-05-15 | 2013-05-15 | Hearing instrument with an authentication protocol |
| US13/896,256 US10652673B2 (en) | 2013-05-15 | 2013-05-16 | Hearing instrument with an authentication protocol |
| JP2014100754A JP6050278B2 (en) | 2013-05-15 | 2014-05-14 | Hearing instrument with authentication protocol |
| CN201410242451.6A CN104168531B (en) | 2013-05-15 | 2014-05-15 | Hearing instrument with indentification protocol |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK201370266 | 2013-05-15 | ||
| DK201370266A DK201370266A1 (en) | 2013-05-15 | 2013-05-15 | Hearing instrument with an authentication protocol |
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| Publication Number | Publication Date |
|---|---|
| DK201370266A1 true DK201370266A1 (en) | 2014-11-24 |
Family
ID=51904535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK201370266A DK201370266A1 (en) | 2013-05-15 | 2013-05-15 | Hearing instrument with an authentication protocol |
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| DK (1) | DK201370266A1 (en) |
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| DK201570436A1 (en) * | 2015-07-02 | 2017-01-23 | Gn Hearing As | Hearing device and method of updating a hearing device |
| DK201570437A1 (en) * | 2015-07-02 | 2017-01-23 | Gn Hearing As | Hearing device with communication logging and related method |
| DK201570434A1 (en) * | 2015-07-02 | 2017-01-30 | Gn Hearing As | Hearing device and method of hearing device communication |
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| US10104522B2 (en) | 2015-07-02 | 2018-10-16 | Gn Hearing A/S | Hearing device and method of hearing device communication |
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- 2013-05-15 DK DK201370266A patent/DK201370266A1/en not_active Application Discontinuation
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| DK201570437A1 (en) * | 2015-07-02 | 2017-01-23 | Gn Hearing As | Hearing device with communication logging and related method |
| DK201570434A1 (en) * | 2015-07-02 | 2017-01-30 | Gn Hearing As | Hearing device and method of hearing device communication |
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