| Patent application number | Description | Published |
|---|
| 20090238387 | Method for actively reducing occlusion comprising plausibility check and corresponding hearing apparatus - Adaption of signal processing for actively reducing occlusion in hearing apparatuses, and in particular in hearing aids, is to be automated further. For this purpose, a transducer transmission function, which is defined for the transmission path from the input of a receiver via the auditory canal to the output of a microphone, be subjected to an automatic plausibility check. An adjustable filter via which the microphone signal is fed back is only altered if the transducer transmission function is plausible according to a predefined criterion. Disadvantageous convergences of the adaptation algorithm can be avoided hereby and unnecessarily high computing times can be prevented. | 09-24-2009 |
| 20090274314 | METHOD AND APPARATUS FOR DETERMINING A DEGREE OF CLOSURE IN HEARING DEVICES - A method for determining a degree of closure in a hearing device with at least one auditory canal microphone, at least one receiver and an associated hearing device apparatus is disclosed. The method is characterized by an in-situ measurement of a transmission function between the receiver and the auditory canal microphone, by a comparison of the measured transmission function with previously determined reference values and/or curves, and by a determination of an effective vent diameter from the comparison, the effective vent diameter specifying the degree of closure. | 11-05-2009 |
| 20100002896 | Hearing Aid Having an Occlusion Reduction Unit and Method for Occlusion Reduction - A method is described for reduction of occlusion effects in an acoustic appliance which closes an auditory channel, wherein an audio signal in the transmission path of the acoustic appliance is processed by a signal processing unit and is emitted via an output transducer, which is arranged in the auditory channel, as an acoustic signal. A resultant sound signal is then detected by an auditory channel microphone and is supplied to a variable loop filter, which is arranged in a feedback loop of an occlusion reduction unit for the acoustic appliance. The output signal from the loop filter is injected into the transmission path of the audio signal. The occlusion reduction unit is in this case controlled adaptively, with at least one signal from the transmission path of the audio signal and/or from the feedback loop being used to control the loop filter for the occlusion reduction unit. | 01-07-2010 |
| 20100027823 | Hearing aid having an occlusion reduction unit and method for occlusion reduction - A method is described for reduction of occlusion effects in an acoustic appliance which closes an auditory channel, wherein an audio signal in the transmission path of the acoustic appliance is processed by a signal processing unit and is emitted via an output transducer, which is arranged in the auditory channel, as an acoustic signal. A resultant sound signal is then detected by an auditory channel microphone and is supplied to a variable loop filter which is arranged in a feedback loop of an occlusion reduction unit for the acoustic appliance, whose output signal is injected into the transmission path of the audio signal. In this case, the loop filter is readjusted as a function of information from the signal processing unit. | 02-04-2010 |
| 20100220881 | APPARATUS AND METHOD FOR REDUCING IMPACT SOUND EFFECTS FOR HEARING APPARATUSES WITH ACTIVE OCCLUSION REDUCTION - The invention specifies a hearing apparatus ( | 09-02-2010 |
| 20100329493 | HEARING APPARATUS AND METHOD FOR SUPPRESSING FEEDBACK IN A HEARING APPARATUS - A hearing apparatus and an associated method for suppressing feedback include a microphone emitting a microphone signal and a receiver picking up a receiver signal by subtracting a compensation signal from the microphone signal. The hearing apparatus includes a number of preset static first compensation filters for forming first compensation signals from the receiver signal and a first selection unit, which selects a first compensation signal in such a way that a feedback signal caused by the feedback is minimal in the receiver signal. An advantage thereof is that adaptation artifacts cannot occur. | 12-30-2010 |
| 20110069852 | Hearing Aid - A hearing aid ( | 03-24-2011 |
| 20110103611 | HEARING DEVICE AND METHOD FOR SUPPRESSING FEEDBACK WITH A DIRECTIONAL MICROPHONE - A hearing device and an associated method use an adaptive directional microphone for suppressing feedback. The hearing device includes an adaptation unit which sets the directional microphone so that a sound signal fed back from an earpiece of the hearing device to the directional microphone is attenuated. Acoustic feedback is advantageously attenuated or suppressed simply in an artifact-free manner. | 05-05-2011 |
