| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 381230100 | Hearing aid | 87 |
| 20080205659 | Method for improving spatial perception and corresponding hearing apparatus - In order to improve spatial perception of acoustic signals an input signal is received via aid of a binaural hearing apparatus and optionally analyzed. At least one variable that influences spatial perception of the binaural output signal, based on the input signal, of the hearing apparatus will be changed. Thus, for example, the distance or direction of a source at/from which it is perceived can, with the aid of a classifier or directional microphone, be varied automatically for corresponding input signals, as a result of which improved spatial perception can be achieved. | 08-28-2008 |
| 20080240449 | Method and facility for reproducing synthetically generated signals by means of a binaural hearing system - Synthetically generated signals are reproduced via a binaural hearing system, which includes two hearing devices. After reproducing a first signal via the first hearing device a reproduction of a second signal via the second hearing device is also carried out delayed by a defined time interval. The additional time delay is to be quantified such that the impression of a sound amplification is produced with a hearing system wearer. | 10-02-2008 |
| 20090296944 | COMPRESSION AND MIXING FOR HEARING ASSISTANCE DEVICES - This application relates to a system for compression and mixing for hearing assistance devices by application of compression to individual sound sources before mixing, according to one example. Variations of the present system using surround sound provide separate signals from a surround sound synthesizer which are compressed prior to mixing of the signals. | 12-03-2009 |
| 20090304187 | AUTOMATIC SWITCHING BETWEEN OMNIDIRECTIONAL AND DIRECTIONAL MICROPHONE MODES IN A HEARING AID - The present invention pertains to a method of automatic switching between omnidirectional (OMNI) and directional (DIR) microphone modes in a binaural hearing aid comprising a first microphone system for the provision of a first input signal, a second microphone system for the provision of a second input signal, where the first microphone system is adapted to be placed in or at a first ear of a user, the second microphone system is adapted to be placed in or at a second ear of said user, the method comprising a measurement step, where the spectral and temporal modulations of the first and second input signal are monitored, an C evaluation step, where the spectral and temporal modulations of the first and second input signal are evaluated by the calculation of an evaluation index of speech intelligibility for each of said signals, and an operational step, where the microphone mode of the first and the second microphone systems of the binaural hearing aid are selected in dependence of the calculated evaluation indexes. | 12-10-2009 |
| 20090304188 | METHOD AND SYSTEM FOR ENHANCING THE INTELLIGIBILITY OF SOUNDS - A method of enhancing the intelligibility of sounds including the steps of: detecting primary sounds emanating from a first direction and producing a primary signal; detecting secondary sounds emanating from the left and right of the first direction and producing secondary signals; delaying the primary signal with respect to the secondary signals; and presenting combinations of the signals to the left and right sides of the auditory system of a listener. | 12-10-2009 |
| 20100002886 | HEARING SYSTEM AND METHOD IMPLEMENTING BINAURAL NOISE REDUCTION PRESERVING INTERAURAL TRANSFER FUNCTIONS - The binaural hearing system ( | 01-07-2010 |
| 20100002887 | METHOD FOR OPERATING A BINAURAL HEARING SYSTEM AS WELL AS A BINAURAL HEARING SYSTEM - A hearing system and a method for operating a binaural hearing system include at least two hearing devices to be at least partly inserted into or to be worn behind the left and right ear of a user. Each hearing device includes at least one microphone to generate an electrical signal corresponding to an acoustic signal. The method includes determining contra-lateral information based on an acoustic signal recorded by a microphone of the contra-lateral hearing device, and determining ipsi-lateral information based on an acoustic signal recorded by a microphone of the ipsi-lateral hearing device. The method includes providing a coordination level, the coordination level being indicative of a degree of synchronization of the two hearing devices, and adjusting processes in the ipsi-lateral hearing device in accordance with the coordination level. The coordination level can be determined from the contra-lateral information and/or from the ipsi-lateral information, or be obtained from an external device. | 01-07-2010 |
| 20100002888 | Method and device for low-delay joint-stereo coding - In one aspect a coding of stereophonic audio signals based on inter-channel linear prediction is provided. Each of the two channels is predicted by filtering the center stereo image of both the channels. Optimal filter coefficients are calculated for both channels is a generalization of Mid/Side and Left/Right joint-stereo coding. | 01-07-2010 |
| 20100067707 | RIGHT/LEFT DETECTION IN HEARING AIDS - In a hearing aid system having a first hearing aid and a second hearing aid for providing binaural hearing assistance to a user, the hearing aid for providing hearing assistance to the left ear can easily be confused with the hearing aid for providing hearing assistance to the right ear. The invention proposes a side detection device by means of which each hearing aid detects on or in which ear of the user it is currently being worn. Advantageously, the parameter settings for providing hearing assistance to both ears are stored in both hearing aids of a respective hearing aid system, with the result that following the automatic detection of the respective ear in which the respective hearing aid is currently being worn the corresponding parameter settings are also activated automatically. | 03-18-2010 |
| 20100135500 | METHOD AND SYSTEM FOR PROVIDING BINAURAL HEARING ASSISTANCE - A method of providing binaural hearing assistance to a user, comprising: capturing audio signals at an ear unit worn at each side of the users head; defining a target signal with regard to background noise; determining the difference in the target-signal-to-background-noise ratio of the audio signals captured at the each ear unit; exchanging audio signals between each ear unit according to the determined difference in the target-signal-to-background-noise ratio; selecting, as a function of the determined difference in the target-signal-to-background-noise ratio, as input to each of the stimulating means the audio signals captured at the respective ear unit, the audio signals received from the other one of the ear units, and/or mixtures thereof; and stimulating the user's right ear and the user's left ear according to the selected respective audio signals. | 06-03-2010 |
| 20100150356 | Body-worn hearing aid system - A binaural hearing aid system for a user is set forth. The system includes a casing adapted and constructed to encase a hearing aid system suitable for wearing below the neck of the user. A first digital signal processor, having an audio input from a first microphone of the hearing system, is also provided. The first digital signal processor produces a first audio output corresponding to a first hearing profile. A second digital signal processor having the audio input from the second microphone of the hearing system is also provided. The second digital signal processor produces a second audio output corresponding to a second hearing profile. | 06-17-2010 |
| 20100172506 | HEARING AIDS - The hearing aids comprise a microphone, a signal processor, and a receiver, and have a constitution in which the microphone generates an input signal from an input sound and generate an output signal and send it to the ear on the opposite side only when a specific condition is satisfied with respect to the input signal at the signal processor, and the receiver reproduces an output sound from the output signal. | 07-08-2010 |
| 20100183158 | APPARATUS, SYSTEMS AND METHODS FOR BINAURAL HEARING ENHANCEMENT IN AUDITORY PROCESSING SYSTEMS - According to one aspect, a system for binaural hearing enhancement, including at least one auditory receiver and at least one processor coupled to the at least one auditory receiver. The at least one auditory receiver is configured to receive an auditory signal that includes a target signal. The at least one processor configured to extract a plurality of auditory cues from the auditory signal, prioritize at least one of the plurality of auditory cues based on the robustness of the auditory cues, and based on the prioritized auditory cues, extract the target signal from the auditory signal. | 07-22-2010 |
| 20100254538 | METHOD FOR LOUDNESS-BASED ADJUSTMENT OF THE AMPLIFICATION OF A HEARING AID AND ASSOCIATED HEARING AID - A method and an associated hearing aid for loudness-based adjustment of the amplification of the hearing aid by presenting test signals of a predefinable level and predefinable frequency. Blind signals are presented before and between the test signals, but the blind signals are not taken into account for the adjustment of the amplification of the hearing aid at the predefinable level and predefinable frequency. A method for binaural loudness-based adjustment of the amplification of a left hearing aid and a right hearing aid is also specified. An advantage of the invention is that it is easier for a hearing aid wearer to rank the presented test signals in his individual loudness value system and to assess them accordingly. | 10-07-2010 |
| 20100290631 | BINAURAL HEARING APPARATUS AND METHOD FOR OPERATING A BINAURAL HEARING APPARATUS WITH FREQUENCY DISTORTION - A binaural hearing apparatus has at least one left hearing device and at least one right hearing device. The apparatus further includes a first frequency distortion unit in the left hearing device, which distorts the frequency of an acoustic signal received by the left hearing device or a signal part of the received acoustic signal and a second frequency distortion unit in the right hearing device, which distorts the frequency of the acoustic signal received by the right hearing device or a signal part of the received acoustic signal, with the frequency distortions of the left and right hearing device being different. This is advantageous in that the subjective perception of superimposition artifacts by a hearing device wearer is reduced. | 11-18-2010 |
| 20110129094 | CONTROL OF OPERATING PARAMETERS IN A BINAURAL LISTENING SYSTEM - The application relates to a binaural listening system comprising first and second listening devices adapted for being located at or in left and right ears, respectively, of a person during use of the listening system, each listening device comprising antenna and transceiver circuitry for establishing a bidirectional wireless link to the opposite listening device during use of the system, each listening device comprising a manually operable activation element for influencing the functionality of the listening system in a predefined way, the manually operable activation element having at least one mode of operation. The application further relates to use of binaural listening system and to a method of operating a binaural listening system. The object of the present application is to provide a scheme for enabling a user input in a binaural listening system. The problem is solved in that the system is adapted to provide that the effect on functionality of a specific activation of the manually operable activation element of the first listening device is different from the effect of the same specific activation of the corresponding manually operable activation element of the second listening device. This has the advantage of enabling a scheme for setting operating parameters of the system with a minimum of activators. The invention may e.g. be used for the where listening devices are used at both ears of a user, e.g. hearing instruments, head phones, active ear protection devices, etc. | 06-02-2011 |
| 20110176685 | Audio System with Feedback Detection Means - The invention concerns in a first aspect an audio system comprising a microphone, audio signal processing means, an output transducer and means for detecting a possible feedback tone and the corresponding frequency of the feedback tone in the audio system between the output transducer and the microphone. According to the invention means for counteracting feedback are provided. Further, means are provided for changing the phase of the audio signal at a given frequency. In a further aspect, a binaural hearing aid system comprising first and second hearing instruments according to the first aspect, each hearing instrument comprising transceiver circuitry allowing an exchange of signals between the two hearing instruments, and wherein the binaural hearing aid system is adapted to provide that a phase change introduced in the first audio signal by a controller of the first hearing instrument is or can be introduced in the second audio signal of the second hearing instrument via said transceiver circuitry. | 07-21-2011 |
| 20110188662 | METHOD OF RENDERING BINAURAL STEREO IN A HEARING AID SYSTEM AND A HEARING AID SYSTEM - A hearing aid system comprising means ( | 08-04-2011 |
| 20110243339 | DUAL SETTING METHOD FOR A HEARING SYSTEM - The perception of musical sound with a music component and a speech component is intended to be improved. To this end, a method is proposed for controlling a binaural hearing system with a left hearing-device for a left ear and a right hearing-device for a right ear, which method contains the below described steps. First of all, the hearing system determines a hearing situation with the music component and the speech component. Thereupon, one of the two hearing devices is switched into a music mode and, at the same time, the other one of the two hearing devices is switched into a speech mode. The hearing-aid wearer himself/herself can then decide which component of the sound he/she would rather listen to. | 10-06-2011 |
| 20110249823 | METHOD FOR CONTROLLING A BINAURAL HEARING AID SYSTEM AND BINAURAL HEARING AID SYSTEM - Level compression applied to the acoustic signals ( | 10-13-2011 |
| 20110305345 | METHOD AND SYSTEM FOR A MULTI-MICROPHONE NOISE REDUCTION - A method for a multi microphone noise reduction in a complex noisy environment is proposed. A left and a right noise power spectral density for a left and a right noise input frame is estimated for computing a diffuse noise gain. A target speech power spectral density is extracted from the noise input frame. A directional noise gain is calculated from the target speech power spectral density and the noise power spectral density. The noisy input frame is filtered by Kalman filtering method. A Kalman based gain is generated from the Kalman filtered noisy frame and the noise power spectral density. A spectral enhancement gain is computed by combining the diffuse noise gain, the directional noise gain, and the Kalman based gain. The method reduces different combinations of diverse background noise and increases speech intelligibility, while guaranteeing to preserve the interaural cues of the target speech and directional background noises. | 12-15-2011 |
| 20120008790 | METHOD FOR LOCALIZING AN AUDIO SOURCE, AND MULTICHANNEL HEARING SYSTEM - Sound sources are reliably localized using a multichannel hearing system, in particular a binaural hearing system. The method localizes at least one audio source by detecting a signal in a prescribed class, the signal stemming from the audio source, in an input signal in the multichannel hearing system. The audio source is then localized using the detected signal. First, the nature of the signal is established over a wide band and then the location of the source is determined. | 01-12-2012 |
| 20120008791 | HEARING DEVICE AND METHOD FOR OPERATING A HEARING DEVICE WITH TWO-STAGE TRANSFORMATION - A filter bank with a sufficiently high resolution for amplification and noise reduction and with the lowest possible computational complexity is provided for a hearing device and, in particular, for a hearing aid. Two-stage frequency transformation with little latency is therefore proposed for hearing aids. Some of the processing, for example the amplification, is carried out after high stopband attenuation in the first stage. An increased frequency resolution is achieved in a second stage before the back-transformation in the first stage, which is favorable for noise reduction, for example. | 01-12-2012 |
| 20120070008 | SOUND OUTPUT APPARATUS AND METHOD OF CONTROLLING THE SAME - A method of controlling a sound output apparatus is provided. The method includes determining frequency bands respectively corresponding to an audible band and an inaudible band in relation to a sound that is received via the sound output apparatus by referring to hearing characteristics of a user using the sound output apparatus, compensating for a perception degree in relation to the inaudible band by emphasizing information regarding the audible band of the sound based on a result of the determining, and outputting a sound obtained by reflecting the compensating. | 03-22-2012 |
| 20120087505 | WIRELESS BINAURAL HEARING SYSTEM - A wireless binaural hearing system comprises a left-ear hearing device, a right-ear hearing device and auxiliary devices. The devices communicate via radio signals. Each device comprises a radio transmitter transmitting messages, each hearing device comprises a radio receiver receiving messages, the auxiliary device is adapted to transmit application messages, and the hearing devices are adapted to receive application messages. The quality of wireless communication varies when the user moves his head, which may lead to temporal gaps in communication. Such gaps may cause annoying pauses and/or delays in audio signals presented to the user, and the hearing devices may become temporarily unsynchronised. To avoid such gaps and improve reliability of the communication, without increasing the radio signal power, a first hearing device relays received application messages to a second hearing device in dependence on network messages received from the second hearing device indicating whether application messages were correctly received. | 04-12-2012 |
| 20120087506 | Antenna System for a Hearing Aid - A hearing aid includes a hearing aid assembly having an antenna for emission of an electromagnetic field, a transceiver for wireless data communication, the transceiver interconnected with the antenna, and a housing for accommodation of the antenna, wherein the antenna comprises a first section having a length between at least one sixteenth wavelength and a full wavelength of the electromagnetic field, the antenna being positioned so that current flows in the first section in a direction that corresponds with an ear-to-ear axis of a user when the housing is worn in its operational position by the user, whereby the electromagnetic field emitted by the antenna propagates along a surface of a head of the user with its electrical field substantially orthogonal to the surface of the head of the user. | 04-12-2012 |
| 20120093324 | Hearing Aid with an Antenna - A hearing aid includes a housing, and a hearing aid assembly accommodated in a housing, the hearing aid assembly having a first antenna element configured for emission of an electromagnetic field, and a second antenna element comprising a first section and a parasitic antenna element, wherein the first antenna element, the first section, and the parasitic antenna element are configured so that a total electromagnetic field emitted from the hearing aid assembly is substantially the same irrespective of whether the housing is worn in its operational position on a right hand side or a left hand side of a user. | 04-19-2012 |
| 20120121094 | WIRELESS SYSTEM FOR HEARING COMMUNICATION DEVICES PROVIDING WIRELESS STEREO RECEPTION MODES - The present subject matter relates to the wireless stereo reception of first and second audio information by wireless hearing communication devices. One type of device which may employ the present subject matter is a hearing assistance device, such as a hearing aid. Various forms and protocols of signal transmission are employed in varying embodiments. The present subject matter includes various communication modes such as eavesdropping modes and relaying modes. | 05-17-2012 |
| 20120121095 | WIRELESS BINAURAL HEARING SYSTEM - A binaural healing system includes a left-ear hearing device, a right-ear hearing device and an auxiliary device. The auxiliary device has a connected mode wherein it transmits data messages and a disconnected mode wherein it does not transmit data messages, and the auxiliary device is adapted to enable the connected mode in dependence on receiving beacon messages, to synchronise its transmission of data messages with received beacon messages and to enable the disconnected mode in dependence on not receiving beacon messages. To avoid disconnection of the auxiliary device S during gaps, the left-ear hearing device and the right-ear hearing device are adapted to alternatingly transmit the beacon messages. | 05-17-2012 |
| 20120128163 | METHOD AND PROCESSING UNIT FOR ADAPTIVE WIND NOISE SUPPRESSION IN A HEARING AID SYSTEM AND A HEARING AID SYSTEM - A processing unit that adaptively suppresses wind noise in a hearing aid is provided. The processing unit ( | 05-24-2012 |
| 20120148054 | METHOD OF INITIALIZING A BINAURAL LHEARING AID SYSTEM AND A HEARING AID - In a method of initializing a binaural hearing aid system ( | 06-14-2012 |
| 20120177205 | HEARING AID - A hearing aid includes an audio signal input device, a signal processor and a signal output device which presents a processed audio signal perceivable as sound to an ear of a user. The signal processor includes fast acting level estimators and slow acting level estimators. A communication link between two hearing aids at each ear of a user allows the transmission between the two hearing aids of level estimates from the slow acting level estimators. | 07-12-2012 |
| 20120224704 | METHOD AND APPARATUS FOR SELECTING RIGHT AND LEFT CIRCUIT CONFIGURATIONS OF HEARING ASSISTANCE DEVICES - This disclosure relates to method and apparatus for selecting right and left configurations of hearing assistance device circuits, such as battery polarity. In various applications the present subject matter is applicable to a flexible circuit in hearing assistance devices, including but not limited to hearing aids. In one example, a printed circuit board is configured during manufacture to be used in either a left or a right hearing assistance device. The printed circuit board includes a solder selectable portion to provide for selection of left or right during assembly of the hearing assistance device, according to various embodiments. | 09-06-2012 |
| 20120224705 | SYNCHRONIZATION IN A BILATERAL AUDITORY PROSTHESIS SYSTEM - Aspect of the present invention are generally directed to synchronization between a first auditory prosthesis and a second auditory prosthesis of a bilateral auditory prosthesis system. In this system, a primary wireless communications channel, usable for synchronizing the first and second prostheses, may be disabled to, for example, conserve power. Then, upon detection of a trigger in sound received by one or more of the prostheses, the primary wireless communication channel is enabled and the prostheses synchronized using the primary wireless communication channel. | 09-06-2012 |
| 20120243693 | METHOD OF PROCESSING A SIGNAL IN A HEARING AID, A METHOD OF FITTING A HEARING AID AND A HEARING AID - A method comprises deriving a control signal ( | 09-27-2012 |
| 20120281843 | RECEIVER AND METHOD FOR RETRIEVING AN INFORMATION SIGNAL FROM A MAGNETIC INDUCTION SIGNAL - A receiving antenna circuit is arranged in a reactive near-field of a modulated magnetic induction signal and forms a narrow band-pass filter. The output of the antenna circuit is not subjected to any frequency translation prior to digitising, and the signal may nevertheless be digitised with low resolution, which radically reduces the power consumption of the receiving circuits. The reduction in power consumption is of several orders of magnitude, which allows implementation of such receiving circuits in battery-driven devices such as hearing devices without substantially affecting the battery life. | 11-08-2012 |
| 20120308019 | METHOD AND APPARATUS FOR A BINAURAL HEARING ASSISTANCE SYSTEM USING MONAURAL AUDIO SIGNALS - The present application provides method and apparatus for a binaural hearing assistance system using a monaural audio signal input. The system, in various examples, provides adjustable delay/phase adjustment and sound level adjustment. Different embodiments are provided for receiving the monaural signal and distributing it to a plurality of hearing assistance devices. Different relaying modes are provided. Special functions are supported, such as telecoil functions. The system also has examples that account for a head-related transfer function in providing advanced sound processing for the wearer. Other examples are provided that are described in the detailed description. | 12-06-2012 |
| 20120321091 | METHOD FOR THE BINAURAL LEFT-RIGHT LOCALIZATION FOR HEARING INSTRUMENTS - A method and system for improving signal-to-noise ratio of output signals of a microphone system having two or more microphones due to acoustic useful signals occurring at sides of the system, is used in hearing instruments, especially hearing aids worn on the head. High and low frequency portions (cut-off frequency between 700 Hz and 1.5 kHz, approx. 1 kHz) are processed differently. In low frequency ranges, differential microphone signals directed towards left and right are produced to determine lateral useful and noise sound levels using two directional signals. These levels are used for individual Wiener filtering for every microphone signal. The natural head shadowing effect is used in high frequency ranges as a pre-filter for noise and useful sound estimation for subsequent Wiener filtering. The methods are used in hearing instruments worn on the head individually for high or for low frequencies and in combination complement each other. | 12-20-2012 |
| 20120321092 | METHOD FOR THE BINAURAL LEFT-RIGHT LOCALIZATION FOR HEARING INSTRUMENTS - A method and system for improving signal-to-noise ratio of output signals of a microphone system having two or more microphones due to acoustic useful signals at sides of the system are used in hearing instruments, especially hearing aids worn on the head. High and low frequency portions (cut-off frequency between 700 Hz and 1.5 kHz, approx. 1 kHz) are processed differently. In low frequency ranges, differential microphone signals directed towards left right are produced to determine lateral useful and noise sound levels using these two directional signals. These levels are used for subjecting every microphone signal to individual Wiener filtering. The natural head shadowing effect is used in high frequency ranges as a pre-filter for noise and useful sound estimation for subsequent Wiener filtering. The methods are used in hearing instruments worn on the head individually for high or low frequencies or in combination and complement each other. | 12-20-2012 |
| 20120328111 | Active Delay Method and a improved wireless binaural hearing device using the same method - Disclosed are an active delay method and an improved wireless binaural hearing device. The binaural hearing device includes: a first hearing device including a first microphone, an amplifier and a wireless transmitter; and a second hearing device including a second microphone, an amplifier, a wireless transmitter, a wireless receiver which receives a signal from the wireless transmitter, an active delay circuit which synchronizes the received signal with a signal acquired by the second microphone, a neural network which synchronizes the delayed signal, and a speaker which converts the synchronized signal into a voice signal. With this configuration, it is possible to prevent incorrect detection of the position of the sound source or paralalia due to a time delay which is produced in the wireless binaural hearing device and reduce noises due to a time difference between both hearing devices, thereby providing a binaural hearing device with high quality. | 12-27-2012 |
| 20120328112 | REVERBERATION REDUCTION FOR SIGNALS IN A BINAURAL HEARING APPARATUS - A more efficient method reduces reverberation in binaural hearing systems. This has been done by developing a method for obtaining a reduced-reverberation, binaural output signal, for a binaural hearing apparatus. First of all, a left input signal and a right input signal are provided. The two input signals are combined to form a reference signal. The reference signal is used to ascertain spectral weights, or these weights are provided in another way, in order to use them to reduce late reverberation. To this end, the two input signals have the spectral weight applied to them. Furthermore, a coherency for signal components of the weighted input signals is ascertained. Non-coherent signal components of both weighted input signals are then attenuated in order to reduce early reverberation. | 12-27-2012 |
| 20130010972 | BINAURAL COMPRESSOR PRESERVING DIRECTIONAL CUES - A hearing aid system includes a first hearing aid configured to communicate with a second hearing aid, wherein the first hearing aid comprises a microphone and an ND converter for provision of a digital input signal in response to sound signals received at the microphone, a processor that is configured to process the digital input signal in accordance with a signal processing algorithm into a processed digital output signal, the processor including a compressor, a D/A converter and an output transducer for conversion of the processed digital output signal to an acoustic output signal, and a transceiver for data communication with the second hearing aid, wherein, a gain of the compressor of the first hearing aid is controlled by a first compressor control signal with a value that is substantially equal to a value of a second compressor control signal controlling a gain of a compressor in the second hearing aid, whereby a sense of direction is maintained. | 01-10-2013 |
| 20130010973 | WIRELESS BINAURAL COMPRESSOR - A binaural hearing aid system includes a first hearing aid and a second hearing aid, each of which comprising a processor that is configured to process the digital input signal in accordance with a signal processing algorithm into a processed digital output signal, the processor including a compressor for compensation of dynamic range hearing loss based on the signal level, wherein wireless data communication of signal parameter from one of the first and the second hearing aids is performed at a data transmission rate with a time period between consecutive transmissions of the signal parameter from the one of the first and second hearing aids that is longer than an attack and release time of at least one of the compressors. | 01-10-2013 |
| 20130101123 | METHOD FOR DETERMINING A COMPRESSION CHARACTERISTIC, METHOD FOR DETERMINING A KNEE POINT AND METHOD FOR ADJUSTING A HEARING AID - The fitting of a hearing device and in particular of a hearing aid using frequency compression is to be simplified. A method for determining a knee point of a frequency compression characteristic for a hearing device is therefore proposed wherein a maximum audible frequency of a hearing device user is first determined and the knee point is then determined using a predefined rule in dependence on a maximum audible frequency. An end point of a compression characteristic can also be automatically determined. | 04-25-2013 |
| 20130108058 | BINAURAL HEARING DEVICE AND METHOD TO OPERATE THE HEARING DEVICE | 05-02-2013 |
| 20130114818 | METHOD FOR AUTOMATIC ACTIVATION AND DEACTIVATION OF A BINAURAL HEARING SYSTEM AND BINAURAL HEARING SYSTEM - A method of operation saves energy during the operation of a binaural hearing system having a left-hand hearing device and a right-hand hearing device. The method includes providing a left-hand internal input signal in the left-hand hearing device and a right-hand internal input signal in the right-hand hearing device. A sending mode of the left-hand hearing device and/or right-hand hearing device is activated and/or deactivated. The sending mode is therein activated in one of the hearing devices automatically in dependence on the respective internal input signal and the sending mode is deactivated in one of the hearing devices automatically in dependence on the respective internal input signal and of a communication signal received from the respective other hearing device. | 05-09-2013 |
| 20130148813 | COMPRESSION OF SPACED SOURCES FOR HEARING ASSISTANCE DEVICES - This application relates to a system for compression and mixing for hearing assistance devices by application of compression to individual sound sources before applying a head-related transfer function (HRTF) to prevent compression and cross modulation of interaural-level-difference (ILD) cues for localization, according to one example. Variations of the present system use coordinated compression to left and right individual source signals after application of HRTFs. | 06-13-2013 |
| 20130156202 | BONE CONDUCTION HEARING AID SYSTEM - A bone conduction hearing aid system with right and left ear microphone arrangements; right and left ear ambient sound signal processing units, right and left ear bone conduction output transducers for stimulating the user's right and left ear cochlea, respectively; a right and left ear cross-talk compensation filter units for generating right and left ear crosstalk compensation signals, respectively, from the processed audio signals of the respective signal processing unit according to an estimated transcranial transfer function; and means for subtracting the left ear cross-talk compensation signal from the processed audio signals of the right ear signal processing unit to generate the right ear output audio signals, and means for subtracting the right ear cross-talk compensation signal from the processed audio signals of the left ear signal processing unit to generate the left ear output audio signals. | 06-20-2013 |
| 20130170653 | HEARING AID WITH SIGNAL ENHANCEMENT - A method of binaural signal enhancement in a binaural hearing aid system, includes providing at least one microphone audio signal in response to sound, providing an estimate of one of a target signal and a noise signal based on the at least one microphone audio signal, phase shifting the estimate of one of the target signal and the noise signal, providing a phase shifted signal in which the phase shifted estimate of one of the target signal and the noise signal substantially substitutes the respective one of the target signal and the noise signal, transmitting a first signal representing the phase shifted signal towards a first eardrum of a user of the binaural hearing aid system, and transmitting a second signal representing the at least one microphone audio signal towards a second eardrum of the user. A system for performing the method is also described. | 07-04-2013 |
| 20130170654 | SYSTEM, HEARING AID, AND METHOD FOR IMPROVING SYNCHRONIZATION OF AN ACOUSTIC SIGNAL TO A VIDEO DISPLAY - A system for improving synchronization of an acoustic signal to a video display includes a hearing aid comprising a hearing loss processor configured for signal processing in accordance with a hearing loss of a user of the hearing aid, the hearing aid being configured for receiving a first audio signal for synchronous presentation to the user viewing the video display, the hearing aid being configured for generating a first acoustic signal to be presented to the user of the hearing aid, the first acoustic signal comprising at least a first part being generated in response to the first audio signal. The system also includes a delay unit configured for applying a delay, such that synchronization of the at least first part of the first acoustic signal to the video display is improved. | 07-04-2013 |
| 20130182855 | MULTIMEDIA PLAYING APPARATUS AND METHOD FOR OUTPUTTING MODULATED SOUND ACCORDING TO HEARING CHARACTERISTIC OF USER - Multimedia playing apparatuses and methods of measuring hearing characteristics of a user and outputting a sound modulated according to the hearing characteristics of the user are provided. A multimedia playing apparatus includes a sound output unit configured to output a sound comprising of one or more phonemes, and a user interface configured to receive a user response to the phonemes. The multimedia playing apparatus further includes a processor configured to acquire hearing characteristics of a user based on the user response, and determine an output level and/or an output time of the sound for each of frequency bands based on the hearing characteristics of the user. The sound output unit is further configured to output the sound according to the output level and/or the output time of the sound for each of the frequency bands. | 07-18-2013 |
| 20130202119 | BINAURAL HEARING AID SYSTEM AND A METHOD OF PROVIDING BINAURAL BEATS - A binaural hearing aid system ( | 08-08-2013 |
| 20130223634 | METHOD OF FITTING A BINAURAL HEARING AID SYSTEM - A method fits a binaural hearing aid system for a person with a small or moderate asymmetrical hearing loss. The method comprises providing first hearing loss data for a right ear of a user; providing second hearing loss data for a left ear of a user; determining a difference between the first and second hearing loss data; classifying the degree of similarity of the first and second hearing loss data; determining basic hearing loss data to for each of the first and second hearing instruments depending on hearing loss classes; and calculating frequency dependent target gain values for each of the first and second hearing instruments. | 08-29-2013 |
| 20130259239 | HEARING APPARATUS FOR BINAURAL SUPPLY AND METHOD FOR PROVIDING A BINAURAL SUPPLY - A hearing apparatus for a binaural supply contains a first earhook to be worn on one ear, having a plurality of microphones, and a first signal processing device which is configured to generate a local earpiece signal for an earpiece of the first earhook from microphone signals of the microphones by use of multichannel signal processing of each of the microphone signals. A beam forming device and a transmission device are additionally provided in the first earhook. The beam forming device is configured to generate a directional output signal from the microphone signals by signal processing which has fewer channels than that of the first signal processing device, and wherein the transmission device is set up to transmit the directional output signal as an electrical or electromagnetic signal from the first earhook. | 10-03-2013 |
| 20130308782 | HEARING AID WITH BEAMFORMING CAPABILITY - A hearing aid includes a first microphone for providing a first audio input signal, a second microphone for providing a second audio input signal, a signal processor configured for generating a hearing loss compensated audio output signal based at least in part on the audio input signals, and a receiver for converting the audio output signal into an output sound signal, wherein the signal processor is configured to perform directional processing, based on the first and second audio input signals, in a first frequency range and substantially omni-directional processing in a second frequency range, at least a part of the first frequency range being higher than the second frequency range, and wherein a lower cutoff frequency of the first frequency range is adjustable. | 11-21-2013 |
| 20140016788 | METHOD FOR ADJUSTING A HEARING DEVICE APPARATUS AND HEARING DEVICE APPARATUS - The aim is to make operation of hearing device apparatuses more convenient. A method is proposed for operating a hearing device apparatus by a user by presenting a first acoustic signal by the hearing device apparatus as originating from a first virtual position and by presenting a second acoustic signal by the hearing device apparatus as originating from a second virtual position. In this connection the first acoustic signal represents a first adjustment option of the hearing device apparatus and the second acoustic signal a second adjustment option. The body part of the user is moved toward the first or second virtual position and a position or movement of the body part of the user is detected. Finally the detected position or movement of the body part is automatically allocated to the first or second virtual position, whereby the adjustment option corresponding to the allocated virtual position is chosen. | 01-16-2014 |
| 20140064496 | BINAURAL ENHANCEMENT OF TONE LANGUAGE FOR HEARING ASSISTANCE DEVICES - Disclosed herein, among other things, are methods and apparatus for binaural enhancement of tone language for hearing assistance devices. One aspect of the present subject matter includes a method for enhancing pitch in a hearing assistance system having a first and second hearing assistance device. A signal is received using a microphone of the first hearing assistance device. Pitch detection is performed on the signal to obtain a pitch value. The pitch value is wirelessly transmitted from the first hearing assistance device to the second hearing assistance device. In various embodiments, the pitch value of the first hearing assistance device is combined with a pitch value of the second hearing assistance device. The gain is adjusted based on the combined pitch value, in various embodiments. | 03-06-2014 |
| 20140086417 | HEARING AID FOR PROVIDING PHONE SIGNALS - A hearing system includes a first hearing aid, the first hearing aid comprising: a first microphone for converting sound into electrical signals; a processor communicatively coupled to the first microphone, wherein the processor is configured to provide an output based on the electrical signals from the first microphone; a first speaker communicatively coupled to the processor, and is configured to provide an acoustic signal based on the output provided by the processor; and a first communication device configured to receive a control signal transmitted from a second hearing aid in response to a reception or detection of a signal associated with a phone by the second hearing aid; wherein the first hearing aid is configured to reduce a gain of the first hearing aid to a non-zero value in response to the control signal received from the second hearing aid. | 03-27-2014 |
| 20140169570 | SPATIAL ENHANCEMENT MODE FOR HEARING AIDS - Described herein are techniques for artificially enhancing spaciousness in a hearing aid to improve the music listening experience. Such spatial enhancement is produced by doing signal processing in the hearing aid that mimics the acoustic effects of well-designed concert halls. The same techniques can also be applied to improving the experience of listening to recorded music reproduced and amplified over a speaker system, or to music streamed to the direct-audio input of a hearing aid. | 06-19-2014 |
| 20140185813 | HEARING AID HAVING AN ADAPTIVE ANTENNA MATCHING MECHANISM AND A METHOD FOR ADAPTIVELY MATCHING A HEARING AID ANTENNA - A method of matching a hearing aid antenna in a binaural hearing aid in accordance with a detected signal strength of a received communication signal, the binaural hearing aid having a first hearing aid to be positioned at one ear of a user and a second hearing aid to be positioned at another ear of the user, the method includes: receiving a communication signal by a wireless communication unit in the first hearing aid; detecting a signal strength of the received communications signal; and controlling a matching mechanism positioned in the first hearing aid and/or the second hearing aid to improve antenna reception and/or antenna transmission according to the detected signal strength. | 07-03-2014 |
| 20140192988 | HEARING ASSISTANCE DEVICE EAVESDROPPING ON A BLUETOOTH DATA STREAM - Disclosed herein, among other things, are systems and methods for eavesdropping on a data stream for hearing assistance devices. One aspect of the present subject matter includes a hearing assistance system for a wearer including a Bluetooth host device having a transmitter configured to send data including one or more encoded audio streams, and a data channel having an advertisement that includes frequency information, frequency hop sequences, information for decoding audio streams, and security keys for decoding audio stream information. The system also includes one or more Bluetooth slave devices identified by the Bluetooth host device. The Bluetooth slave devices are configured to actively participate in a connection with the host device to aid the host transmitter in deciding which frequencies to use for frequency hopping and in determining which frequencies are being interfered with and should not be included in a channel map, according to various embodiments. | 07-10-2014 |
| 20140270190 | Methods, Systems, and Devices for Determining a Binaural Correction Factor - Methods, systems, and devices are disclosed herein. A sample method includes determining one or more binaural correction factors at one or more frequencies. Each binaural correction factor is representative of an amount of binaural summation experienced by a recipient of a binaural stimulus at one of the one or more frequencies. The binaural stimulus is delivered about simultaneously to the recipient by a first stimulation device and a second stimulation device. | 09-18-2014 |
| 20140270191 | BINAURAL HEARING INSTRUMENT AND EARPIECE - A binaural hearing instrument and an earpiece for the binaural hearing instrument are enabled for broadband wireless data transmission to a further binaural hearing instrument. Wireless broadband binaural data transmission with high bandwidth and low resource requirement is afforded, while the devices can be manufactured easily and inexpensively. The hearing instrument has a housing, a signal processor, a receiver and an antenna for binaural data transmission. The housing can be worn at least partly in an auditory canal. A distal section houses the signal processor and the receiver. A proximal section adjacent to the eardrum and separated spatially from the proximal section houses the antenna. The antenna is disposed between the receiver and the sound outlet as far in the auditory canal as possible. The distance between the antennas of the two binaural hearing instruments is reduced compared with conventional positioning and the bit error rate is significantly improved. | 09-18-2014 |
| 20140348331 | HEARING AID WITH SPATIAL SIGNAL ENHANCEMENT - A new binaural hearing aid system is provided with a hearing aid in which signals that are received from external devices, such as a spouse microphone, a media player, a hearing loop system, a teleconference system, a radio, a TV, a telephone, a device with an alarm, etc., are filtered with binaural filters in such a way that a user perceives the signals to be emitted by respective sound sources positioned in different spatial positions in the sound environment of the user, whereby improved spatial separation of the different sound sources is facilitated. | 11-27-2014 |
| 20150030162 | METHOD FOR OPERATING A BINAURAL HEARING SYSTEM AND A BINAURAL HEARING SYSTEM - A method for operating a binaural hearing system including first and second hearing devices, each including an input transducer, a signal processing unit, an output transducer and a link unit for exchanging information between the devices. Operating the first hearing device according to a first processing scheme, operating the second hearing device according to a second processing scheme, monitoring an acoustic situation by the hearing devices, generating a request for coordinating the two hearing devices if one hearing device detects an acoustic situation asking for coordinating the two processing schemes of the hearing devices, the hearing device detecting such an acoustic situation being an ipsi-lateral hearing device the other being a contra-lateral hearing device, activating a link between the devices for transmitting the request to the contra-lateral hearing device, and changing the processing scheme in at least one of the devices in accordance with the request. | 01-29-2015 |
| 20150071448 | METHOD AND APPARATUS FOR CREATING BINAURAL BEATS USING HEARING AIDS - A hearing assistance system includes a pair of first and second hearing aids to generate a first acoustic signal having a first frequency and a second acoustic signal having a second frequency. When the first and second acoustic signals are each delivered to one of the ears of a listener being a hearing aid wearer, the listener perceives binaural beats at a third frequency being the difference between the first and second frequency. The effects of the binaural beats may include various health or other benefits to the hearing aid wearer. | 03-12-2015 |
| 20150124975 | BINAURAL HEARING ASSISTANCE SYSTEM COMPRISING A DATABASE OF HEAD RELATED TRANSFER FUNCTIONS - The application relates to a binaural hearing assistance system comprising left and right hearing assistance devices adapted for being located at or in a left and right ear, respectively, of a user, each of the left and right hearing assistance devices comprising a) an input unit for providing one or more electric input signals based on one or more input sounds of a sound field surrounding the binaural hearing assistance system; b) a source separation unit for separating and localizing one or more sound sources S | 05-07-2015 |
| 20150124976 | BINAURAL HEARING ASSISTANCE SYSTEM COMPRISING TWO WIRELESS INTERFACES - The application relates to a binaural hearing assistance system comprising first and second hearing assistance devices adapted for being located at or in left and right ears of a user. The application further relates to a method of operating a binaural hearing assistance system. The object of the present application is to provide an improved binaural hearing assistance system. The problem is solved in that each of the first and second hearing assistance devices comprises a) a first wireless interface comprising first antenna and transceiver circuitry adapted for establishing a first communication link to the respective other hearing assistance device based on near-field communication; b) a second wireless interface comprising second antenna and transceiver circuitry adapted for establishing a second communication link to an auxiliary device based on far-field communication; c) a link control unit operatively coupled to the second antenna and transceiver circuitry and configured to repeatedly provide a second link quality measure indicative of a link quality of the second communication link; wherein the first and second hearing assistance devices are configured to exchange said respective second link quality measures between them via said first and/or second communication links. This has the advantage of providing a robust and flexible system. The invention may e.g. be used for binaural hearing assistance systems, e.g. binaural hearing aid systems, where audio quality and power consumption has to be mutually optimized. | 05-07-2015 |
| 20150312684 | TRANSCEIVER FOR A HEARING AID AND A METHOD FOR OPERATING SUCH A TRANSCEIVER - A frequency-shift-keying (FSK) transceiver for use in a hearing aid system and having a resonant circuit comprising a transceiver inductance (L | 10-29-2015 |
| 20150334493 | SYSTEMS AND METHODS OF TELECOMMUNICATION FOR BILATERAL HEARING INSTRUMENTS - Disclosed herein, among other things, are systems and methods for improved telecommunication for hearing instruments. One aspect of the present subject matter includes a hearing assistance method. The method includes receiving a first signal from a first hearing assistance device, receiving a second signal from a second hearing assistance device, and processing the first signal and the second signal to produce an output signal for use in telecommunication. In various embodiments, processing the first signal and the second signal includes comparing the first signal and the second signal, and selecting one or more of the first hearing assistance device and the second hearing assistance device for use in telecommunication based on the comparison. According to various embodiments, processing the first signal and the second signal includes combining the first signal and the second signal algorithmically to produce the output signal. | 11-19-2015 |
| 20160049074 | CANAL HEARING DEVICE AND METHODS FOR WIRELESS REMOTE CONTROL OF AN APPLIANCE - The present disclosure describes examples of systems and methods of wireless remote control of appliances using a canal hearing device upon manual activation of a switch placed in the concha cavity behind the tragus. In some examples, the lateral end comprises one or more manually activated switches, a wireless antenna, and a battery cell. In some examples, the wireless electronics include low energy Bluetooth capability. The appliance may be any device with wireless control capability, for example an electronic lock, a thermostat, an electronic lighting, a telephone, a kitchen appliance, a medical alert system, a television, a medical device, and a smart glass. The inconspicuous and secure wear of the canal hearing device may allow a hearing device user to enjoy a normal lifestyle, including exercise, and to discretely interact with wirelessly controlled devices. | 02-18-2016 |
| 20160050500 | HEARING ASSISTANCE DEVICE WITH BEAMFORMER OPTIMIZED USING A PRIORI SPATIAL INFORMATION - A hearing assistance system includes an adaptive binaural beamformer based on a multichannel Wiener filter (MWF) optimized for noise reduction and speech quality criteria using a priori spatial information. In various embodiments, the optimization problem is formulated as a quadratically constrained quadratic program (QCQP) aiming at striking an appropriate balance between these criteria. In various embodiments, the MWF executes a low-complexity iterative dual decomposition algorithm to solve the QCQP formulation. | 02-18-2016 |
| 20160066103 | METHOD AND APPARATUS FOR LOCALIZATION OF STREAMING SOURCES IN HEARING ASSISTANCE SYSTEM - A hearing assistance system streams audio signals from one or more streaming sources to a hearing aid set and enhances the audio signals such that the output sounds transmitted to the hearing aid wearer include a spatialization effect allowing for localization of each of the one more streaming sources. The system determines the position of the hearing aid set relative to each streaming source in real time and introduces the spatialization effect for that streaming source dynamically based on the determined position, such that the hearing aid wearer can experience a natural feeing of the acoustic environment. | 03-03-2016 |
| 20160066104 | BINAURAL HEARING SYSTEM AND METHOD - The present disclosure regards a binaural hearing system configured to receive sound signals from the environment having two hearing instruments to be worn on respective sides of the head of a user and to generate a binaural signal using the received sound signals of both hearing instruments. | 03-03-2016 |
| 20160073203 | HEARING DEVICE COMPRISING A DIRECTIONAL SYSTEM - The application relates to a hearing device comprising an input unit for providing first and second electric input signals representing sound signals, a beamformer filter for making frequency-dependent directional filtering of the electric input signals, the output of said beamformer filter providing a resulting beamformed output signal. The application further relates to a method of providing a directional signal. The object of the present application is to create a directional signal. The problem is solved in that the beamformer filter comprises a directional unit for providing respective first and second beamformed signals from weighted combinations of the electric input signals, an equalization unit for equalizing a phase (and possibly an amplitude) of the beamformed signals and providing first and second equalized beamformed signals, and a beamformer output unit for providing the resulting beamformed output signal from the first and second equalized beamformed signals. This has the advantage to create a directional signal where the phase of the individual components is preserved, and therefore introducing no phase distortions. The invention may e.g. be used in hearing aids, headsets, ear phones, active ear protection systems, and combinations thereof. | 03-10-2016 |
| 20160080877 | METHOD OF OPERATING A BINAURAL HEARING AID SYSTEM AND A BINAURAL HEARING AID SYSTEM - A method of operating a binaural hearing aid system ( | 03-17-2016 |
| 20160088407 | METHOD OF SIGNAL PROCESSING IN A HEARING AID SYSTEM AND A HEARING AID SYSTEM - A method of noise suppression in a hearing aid system by providing an improved noise estimate derived from the difference of a first digital audio signal provided by a first input transducer and an adaptively filtered second digital audio signal provided by a second input transducer. The invention further provides a hearing aid ( | 03-24-2016 |
| 20160127842 | METHOD FOR OPERATING A HEARING SYSTEM AND A DEVICE OF A HEARING SYSTEM - A method for operating a hearing system with at least a first device and a second device. The method includes the steps of booting of the first device, sending a state query from the first device to the second device, sending a state response from the second device to the first device, the state response including information regarding an operational state of the second device, and adjusting the operational state of the first device dependent on the state response. A device can be employed to perform such a method as part of the hearing system. The hearing system can for instance be a binaural hearing system, a CROS system or a system including a hearing device and a fitting device for adjusting the hearing device to the individual requirements of the hearing device user. | 05-05-2016 |
| 20160142833 | SPATIAL ENHANCEMENT MODE FOR HEARING AIDS - Described herein are techniques for artificially enhancing spaciousness in a hearing aid to improve the music listening experience. Such spatial enhancement is produced by doing signal processing in the hearing aid that mimics the acoustic effects of well-designed concert halls. The same techniques can also be applied to improving the experience of listening to recorded music reproduced and amplified over a speaker system, or to music streamed to the direct-audio input of a hearing aid. | 05-19-2016 |
| 20160183011 | DIFFUSE NOISE LISTENING | 06-23-2016 |
| 20160183014 | HEARING DEVICE WITH IMAGE CAPTURE CAPABILITIES | 06-23-2016 |
| 20160192090 | METHOD OF SUPERIMPOSING SPATIAL AUDITORY CUES ON EXTERNALLY PICKED-UP MICROPHONE SIGNALS - The present disclosure relates in a first aspect to a method of superimposing spatial auditory cues to an externally picked-up sound signal in a hearing instrument. The method comprises steps of a generating an external microphone signal by an external microphone arrangement and transmitting the external microphone signal to a wireless receiver of a first hearing instrument via a first wireless communication link. Further steps of the methodology comprise determining response characteristics of a first spatial synthesis filter by correlating the external microphone signal and a first hearing aid microphone signal of the first hearing instrument and filtering the external microphone signal by the first spatial synthesis filter to produce a first synthesized microphone signal comprising first spatial auditory cues. | 06-30-2016 |
| 20160205483 | HEARING AID SYSTEM WITH AN ALIGNED AUDITORY PERCEPTION | 07-14-2016 |
| 20160381469 | METHOD FOR SIGNAL PROCESSING IN A BINAURAL HEARING DEVICE AND BINAURAL HEARING DEVICE - A method performs signal processing in a binaural hearing device that has first and second hearing aids with first and second microphones producing first and second signals and with first and second sound generators. The first and second signals ascertain a direction of a main sound source. A deviation in the direction from a frontal direction prompts the hearing aid that is closer to the main sound source to be defined as the local hearing aid and the hearing aid that is more remote from the main sound source to be a remote hearing aid. The local hearing aid, in one frequency band, filters the first signal using an angle-dependent first filter factor, and thus produces a first filtered signal. The first signal, the second signal and/or the direction of the main sound source is used for determining an adaptation coefficient, a first adapted signal and a local directional characteristic. | 12-29-2016 |
| 20170238103 | HEARING ASSISTANCE SYSTEM AND METHOD | 08-17-2017 |
| 20180025627 | HEARING DEVICE AND METHODS FOR INTERACTIVE WIRELESS CONTROL OF AN EXTERNAL APPLIANCE | 01-25-2018 |
| 20220141601 | PORTABLE SYSTEM FOR GATHERING AND PROCESSING DATA FROM EEG, EOG, AND/OR IMAGING SENSORS - A method for picking up body signals from the head of a user comprises a) placing first and second electrodes on first and second different positions at a first side of the user's head in direct or capacitive contact with the user's head, said first side comprising a first eye of the user, the first and second electrodes being configured to pick up first and second electric potentials, respectively, from the user's body, and b) providing an Electrooculography signal representative of a corneo-retinal potential difference of said first eye of the user in dependence of said at first and second electric potentials. The first and second positions may be (substantially) located in a plane including the first eye of the user. A portable electronic device providing an Electrooculography signal, and a hearing device utilizing an Electrooculography signal is further disclosed. | 05-05-2022 |
