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EP1445982B2 - Vorrichtung und Verfahren zur Kommunikation von Hörgeräten - Google Patents

Vorrichtung und Verfahren zur Kommunikation von Hörgeräten Download PDF

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Publication number
EP1445982B2
EP1445982B2 EP03029646A EP03029646A EP1445982B2 EP 1445982 B2 EP1445982 B2 EP 1445982B2 EP 03029646 A EP03029646 A EP 03029646A EP 03029646 A EP03029646 A EP 03029646A EP 1445982 B2 EP1445982 B2 EP 1445982B2
Authority
EP
European Patent Office
Prior art keywords
priority
data
hearing
sending
hearing aid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP03029646A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1445982A1 (de
EP1445982B1 (de
Inventor
Torsten Dr. Niederdränk
Gottfried Rückerl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sivantos GmbH
Original Assignee
Siemens Audiologische Technik GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Application filed by Siemens Audiologische Technik GmbH filed Critical Siemens Audiologische Technik GmbH
Publication of EP1445982A1 publication Critical patent/EP1445982A1/de
Publication of EP1445982B1 publication Critical patent/EP1445982B1/de
Application granted granted Critical
Publication of EP1445982B2 publication Critical patent/EP1445982B2/de
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
    • H04R25/558—Remote control, e.g. of amplification, frequency
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; 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
    • H04R25/552—Binaural
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/50—Customised settings for obtaining desired overall acoustical characteristics
    • H04R25/505—Customised settings for obtaining desired overall acoustical characteristics using digital signal processing

Definitions

  • the present invention relates to methods and apparatus for transmitting data in a hearing aid system.
  • the wireless communication of a hearing aid with another as well as with another communication interface must meet special requirements, which are caused for example by the very limited available transmission energy of a transceiver located in the hearing aid as well as by the often inefficient for spatial reasons antennas.
  • the solutions implemented in other fields of application draw on multi-channel or time-slicing methods.
  • a single-channel transmission system is used, with sufficient transmission ranges and transmission bandwidths of all communication users involved, it can usually be ensured that the wireless transmission channel is free when a transmission process is initiated.
  • these methods which are used for example in modern digital transmission systems (Bluetooth, DECT, etc.) are not suitable for hearing aid applications.
  • the commonly used in the hearing aid sector FM transmission systems are usually pure point-to-point transmission systems with a transmission level for a single application that continuously transmit analog signals.
  • a hearing aid with multiple analog inputs and an additional digital input known. It is possible to further process a plurality of digital signals fed in at the additional input of the hearing device through a multiplexer and to forward them to a signal processor of the hearing device.
  • spatially separated microphone signals from stereo microphones can be digitally received and processed quickly and without interference.
  • the document shows WO 99/03254 a Personal Communication Node (PCN) unit for receiving and transmitting signals over a wireless connection to and from a hearing aid.
  • the signals are processed according to a priority list. In a high priority interrupt request, current lower priority signal processing is interrupted.
  • PCN Personal Communication Node
  • the object of the present invention is thus to provide a communication system for hearing aids that meets the special requirements for hearing aids and is optimized in particular with regard to energy consumption.
  • the present invention it is thus possible to give priority to the manual operation of a hearing aid prior to other communications between the hearing aids by giving the highest priority and thus the largest data packet length to the data to be transmitted due to the operation. Consequently, those components of the hearing aid system that receive such a high-priority message, at least for a certain time to stop their transmission activity. For this reason, the invention provides a hearing aid as in claim 18.
  • a transmission system on the basis of, for example, an electromagnetic, infrared or ultrasonic transmission, which due to limited space and due to a limited transmission capacity has no access to multiple transmission channels or a division by a time slice method.
  • the transmission signals are preferably transferred via a single transmission channel.
  • such a transmission system can have at least two logical levels of communication, which can each be assigned to different applications or transmission modalities. Depending on the application, these communication levels will have different priorities of communication. Furthermore, more than two communication participants on the communication network not all of them are aware of the ongoing communication of the other participants. For example, if there is a data exchange between two hearing aids, a remote control may not have information about ongoing communication due to the limited range of the hearing aids. If a possibly time-critical application of a higher communication level or a subscriber not continuously integrated in the communication system then places a signal to be transmitted wirelessly on request, it can be disturbed in the case of a currently running communication and the transmitted data of both the disturbed connection and the application higher priority or the external source.
  • the present embodiments represent preferred embodiments of the present invention.
  • the transmission levels or communication partners of different priority use different types of data packets. If a basic data word DW is used for communication in the lowest level, these data records are sent between the partners in the undisturbed case. If an application / participant of a higher priority now appears, the communication in progress should be interrupted and the necessary information exchanged. For this purpose, the higher priority application sends data packets that are significantly longer than those of the lower priority application. In the case of uncoordinated arrival of the words of higher priority, the current communication is initially disturbed because the received communication user receives the superimposition of the original and the incoming transmission signal. Due to the temporal length of the transmission signal of higher priority, however, a part of the new transmission signal can be received undisturbed after completion of the transmission process of the low-priority connection. Therefore, preferably, the transmission signal of the higher-priority communication element is composed of a first and a second block, the second block containing the complete information to be transmitted, and can always be received even under extreme conditions after a completed transmission of the first block.
  • the first part of the data packet can either consist of at least one of the data words to be transmitted or of a sequence consist of preambles.
  • the advantage of transmitting the data word DW as the first part of the data packet is that in the case of error-free transmission, the data can already be detected earlier.
  • a transmission of relative commands can not be done twice in a data packet, since otherwise an increase in a value would otherwise be carried out twice in the case of error-free transmission.
  • sequences of preambles are sent in advance, these preambles do not contain any information, they just indicate to the system that data transmission will soon follow. All lower priority subscribers are prevented from receiving their own communication during the reception of more important data or preambles. Even if the transmission of higher priority is completed, the transmission channel is kept free for a certain time T ack , before again at a low-level transmission may take place.
  • the data packets have a minimum length of ⁇ (N + 1) DW ⁇ .
  • the priority increases with increasing number N. Assuming at most one communication within a priority level, the most important communication can take place undisturbed in this way. If subscribers who have no information about the ongoing communications have a higher priority, they can bring their data into the communication system.
  • FIG. 1 An embodiment according to the present invention can be accordingly FIG. 1 through a WIRELESS system for hearing aid applications.
  • the system consists of two hearing aids HG1, HG2 and a remote control unit RCU, which communicate wirelessly with each other. Due to the limited transmission energy of the hearing aids HG1, HG2, the transmission ranges are limited.
  • the remote control RCU is not integrated in the communication of the two hearing aids.
  • the lowest level represents the binaural matching of the hearing aids 1, 2 with respect to the signal processing algorithms. For example, thereby the hearing programs to be used in both hearing aids 1, 2 are adjusted.
  • a higher priority application is the operation of the manual controls on the hearing aid by the hearing aid wearer.
  • any other communication should be interrupted immediately and the binaural adjustment of the control element settings carried out.
  • the transmission of the setting values is done with absolute values.
  • the data packets therefore consist of a double transmission of the original data word.
  • the current communication is again interrupted and the desired remote control function is implemented, since the operation of the remote control RCU is given very high priority. It is often resorted to relative instruction sets, the data word is preceded by a series of preambles.
  • the corresponding data word only has to be sent simply because other communication subscribers of lower priority are silent for at least one time T ack before further transmissions are initiated.
  • the operated device After this time T ack the operated device then sends a final synchronization command for binaural matching, which is answered by the other party HG2 with an acknowledgment.
  • the settings eg. B. volume control or program selection, which are made manually on the hearing aid HG1, wirelessly transmitted to the hearing aid HG2.
  • the confirmation time T ack may be different for the two hearing aids HG1 and HG2.
  • FIG. 3 shows a temporal signal scheme in the case of automatic synchronization of the signal processing.
  • the hearing aid HG1 sends a data packet for comparison.
  • the further hearing aid HG2 located in the hearing aid system also sends a synchronization data packet for comparison.
  • mutually those setting values are transmitted to the hearing aids, which has determined its own signal processing due to the environmental conditions as optimal.
  • a corresponding adjustment takes place.
  • a transmission process of the remote control which has no knowledge of running communication due to the limited range of hearing aid communication, so this first transmits a sequence of preambles in a first part, before the actual user data follows in a second part of the data packet.
  • the two parts is again preceded by an initialization preamble, not shown. Since the hearing aids are to react directly to the remote control, the data packets of the remote control are given a very high priority, which is implemented by the great length of the first data packet sent by the remote control. After this high-priority message, here too the hearing aids HG1 and HG2 are prevented from transmitting for a predetermined time.
  • the remote control can easily transmit short data packets, for example for volume adjustment and program selection, to the hearing aids. Following this forced in the hearing aids pause again takes place a comparison between the hearing aids, as in connection with FIG. 2 already described. This adjustment ensures that both hearing aids HG1 and HG2 have received the commands from the remote control.
  • FIG. 5 the case is shown that takes place during the synchronization of the signal processing of the two hearing aids manual operation.
  • the hearing aid HG1 transmits a customary synchronization data packet for adjusting the signal processing.
  • the manual operation starts on the hearing device 2, so that the hearing aid HG2 sends off an extended data packet in order to interrupt the synchronization process.
  • the transmission of the setting values by the manual operation on the hearing aid HG2 thus gains highest priority.
  • the transmitted at the end of the data packet data word can thus be easily received by the hearing aid 1.
  • FIG. 6 Again, a case is shown in which the synchronization of the signal processing is interrupted by a manual operation.
  • manual operation takes place on the hearing aid HG1 and lies behind the synchronization data packet of the hearing aid HG1 in terms of time.
  • the setting value desired by the manual operation is also twice transmitted here for reasons of priority. Since the manual operation or the relevant transmission of the desired setting value begins only after the synchronization data packet, the hearing aid HG2 begins to respond with its own synchronization data packet. The two transmissions overlap in this case so that the second data word for transmitting the setting value of the manual operation, which is sent by the hearing aid HG1, is partially superimposed by the transmission process of the hearing aid HG2. Both data words can not be received correctly by the hearing aid HG2.
  • the hearing aid HG2 since, as usual, a comparison of the set hearing device parameters is performed after a certain time, in which the hearing aid HG1 sends the set value again, the hearing aid HG2 is now given the opportunity to receive the data packet completely. The hearing aid HG2 acknowledges this reception accordingly. Since the synchronization of the signal processing could not be completed here, it takes place after the adjustment of the hearing aid parameters in the usual way.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Acoustics & Sound (AREA)
  • Selective Calling Equipment (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Small-Scale Networks (AREA)
  • Communication Control (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Telephone Function (AREA)
  • Facsimile Transmission Control (AREA)
EP03029646A 2003-02-05 2003-12-22 Vorrichtung und Verfahren zur Kommunikation von Hörgeräten Expired - Lifetime EP1445982B2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10304648 2003-02-05
DE10304648A DE10304648B3 (de) 2003-02-05 2003-02-05 Vorrichtung und Verfahren zur Kommunikation von Hörgeräten

Publications (3)

Publication Number Publication Date
EP1445982A1 EP1445982A1 (de) 2004-08-11
EP1445982B1 EP1445982B1 (de) 2008-08-06
EP1445982B2 true EP1445982B2 (de) 2012-09-26

Family

ID=32603160

Family Applications (1)

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EP03029646A Expired - Lifetime EP1445982B2 (de) 2003-02-05 2003-12-22 Vorrichtung und Verfahren zur Kommunikation von Hörgeräten

Country Status (7)

Country Link
US (1) US7245731B2 (zh)
EP (1) EP1445982B2 (zh)
JP (1) JP4455082B2 (zh)
CN (1) CN1330110C (zh)
AT (1) ATE404031T1 (zh)
DE (2) DE10304648B3 (zh)
DK (1) DK1445982T4 (zh)

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Also Published As

Publication number Publication date
JP4455082B2 (ja) 2010-04-21
EP1445982A1 (de) 2004-08-11
CN1527500A (zh) 2004-09-08
US20050089183A1 (en) 2005-04-28
EP1445982B1 (de) 2008-08-06
DK1445982T4 (da) 2013-01-21
DK1445982T3 (da) 2008-11-24
US7245731B2 (en) 2007-07-17
ATE404031T1 (de) 2008-08-15
DE50310278D1 (de) 2008-09-18
CN1330110C (zh) 2007-08-01
DE10304648B3 (de) 2004-08-19
JP2004242315A (ja) 2004-08-26

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