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| Number | Title | Issue Date |
| 8098859 | Methods, devices and systems using signal processing algorithms to improve speech intelligibility and listening comfort Methods, devices and systems for improving hearing and for treating hearing disorders, such as auditory neuropathies. A hearing enhancement system of this invention generally comprises; an amplitude modulation processor, a frequency high-pass processor, a frequency ... | 01/17/2012 |
| 8031892 | Hearing aid with enhanced high frequency reproduction and method for processing an audio signal A hearing aid (50) comprises means (55, 56, 57, 58) for reproducing frequencies above the upper frequency limit of a hearing impaired user. The hearing aid (50) according to the invention comprises means (55, 57) for transposing higher ba... | 10/04/2011 |
| 8014549 | Dynamic range compression using digital frequency warping A dynamic range compression system is provided, using either a sample-by-sample or a block processing system. Such a system can be used, for example, in a hearing aid. The system, using a frequency-warped processing system, is comprised of a cascade of all-pass filt... | 09/06/2011 |
| 8005246 | Hearing aid apparatus There is described a hearing aid comprising input transducer means for converting input acoustic signals into electrical input signals, signal processor means and output transducer means. The signal processor means is operable to divide said electrical input signals... | 08/23/2011 |
| 8000487 | Frequency translation by high-frequency spectral envelope warping in hearing assistance devices Disclosed herein, among other things, is a system for frequency translation by high-frequency spectral envelope warping in hearing assistance devices. The present subject matter relates to improved speech intelligibility in a hearing assistance device using frequenc... | 08/16/2011 |
| 7711133 | Selective resolution speech processing A hearing prosthesis, including receiver means for receiving a signal representative of a signal over a frequency range; a first filter bank, having a relatively higher resolution, adapted to process said received signal and produce a first set of channel outputs re... | 05/04/2010 |
| 7702121 | Acoustic system with automatic switchover The automatic switching of acoustic systems and especially of hearing aids into different processing programs is to be improved. To this end there is provision for the signal processing device of the acoustic system to feature a high-frequency detector for analysis ... | 04/20/2010 |
| 7697705 | High fidelity digital hearing aid and methods of programming and operating same A programmable digital hearing aid circuit and method for operating and programming same are disclosed. The device provides a flexible means to compensate for undesirable frequency response distortion normally due to the electro-acoustical characteristics of the mic... | 04/13/2010 |
| 7580536 | Sound enhancement for hearing-impaired listeners A method of enhancing sound heard by a hearing-impaired listener comprises monitoring the sound in an environment in which the listener is located; and manipulating the frequency of high frequency components of the sound in a high frequency band, with little, if any... | 08/25/2009 |
| 7369669 | Diotic presentation of second-order gradient directional hearing aid signals Systems, devices and methods are provided for diotically presenting second-order gradient directional hearing aid signals. The present subject matter provides an improved signal-to-noise ratio, and presents a desired directional signal to each ear. One aspect is a h... | 05/06/2008 |
| 7366315 | Adaptive dynamic range optimization sound processor In one embodiment, an apparatus for processing sound includes a means (401) for analysing a sound signal into a number of frequency bands and a means (403) for applying variable gain to each frequency band independently. Gain in applied under control o... | 04/29/2008 |
| 7366307 | Programmable interface for fitting hearing devices A graphical interface is provided to select parameters for fitting a hearing device. The graphical interface provides means visually representing and controlling values of these parameters using a common reference axis for multiple parameters related by a programmab... | 04/29/2008 |
| 7356153 | Hearing assistive apparatus having sound replay capability Hearing assistive apparatus can be implemented to include sound replay capability, the hearing assistive apparatus enabling operation in a replay mode (in which the hearing assistive apparatus replays sound that occurred prior to the current time), as well as in a c... | 04/08/2008 |
| 7343022 | Spectral enhancement using digital frequency warping A frequency-warped processing system using either sample-by-sample or block processing is provided. Such a system can be used, for example, in a hearing aid to increase the dynamic-range contrast in the speech spectrum, thus improving ease of listening and possibly ... | 03/11/2008 |
| 7340072 | Signal processing in a hearing aid In a method and a device for the signal processing in a hearing aid, in which coefficients of a filter for the frequency-dependent amplitude adaptation of an input signal are adapted in accordance with this input signal, the following steps are carried out: ... | 03/04/2008 |
| 7336796 | Hearing assistive apparatus having sound replay capability and spatially separated components Hearing assistive apparatus can be implemented to include sound replay capability, the hearing assistive apparatus enabling operation in a replay mode (in which the hearing assistive apparatus replays sound that occurred prior to the current time), as well as in a c... | 02/26/2008 |
| 7333618 | Ambient noise sound level compensation Systems and methods for ambient noise compensation are disclosed. One example of a system includes a variable amplifier, a source sound processor, an area sound processor, and an adjustment circuit. The variable amplifier adjusts an audio input signal to generate an... | 02/19/2008 |
| 7333624 | Hearing aid device and operating method for automatically switching voltage supply to a connected external device In a hearing aid device and operating method with automatic switching of the hearing aid voltage supply for an external component connected to an audio input of he hearing aid via a single audio voltage supply contact. A load detection device measures the electrical... | 02/19/2008 |
| 7305100 | Dynamic compression in a hearing aid The present invention relates to a hearing aid with a compressor having a low and gain independent delay and low power consumption. The hearing aid comprises a multi-channel compressor for compensation of dynamic range loss and with a digital input for inputting a d... | 12/04/2007 |
| 7292901 | Hybrid multi-channel/cue coding/decoding of audio signals Part of the spectrum of two or more input signals is encoded using conventional coding techniques, while encoding the rest of the spectrum using binaural cue coding (BCC). In BCC coding, spectral components of the input signals are downmixed and BCC parameters (e.g.... | 11/06/2007 |
| 7286675 | Audio signal processors An audio signal processor includes a tone control (23). The tone control comprises two low-pass filters (221, 222) operating in current-mode and a subtractor (223) which subtracts the output currents of the filters to produce a band-pass charact... | 10/23/2007 |
| 7286678 | Hearing device with peripheral identification units Hearing aid fitted with a central processing unit (1) having peripherals (3E, 3A) connected to its input and output. Each peripheral includes an identification unit (5) having an output connected to a first input of a comparator (9... | 10/23/2007 |
| 7277554 | Dynamic range compression using digital frequency warping A dynamic range compression system is provided, using either a sample-by-sample or a block processing system. Such a system can be used, for example, in a hearing aid. The system, using a frequency-warped processing system, is comprised of a cascade of all-pass filt... | 10/02/2007 |
| 7277760 | Encoding fine time structure in presence of substantial interaction across an electrode array A method for reducing the effects of decreased resolution in a cochlear implant worn by an individual includes 1) determining the value of the individual's resolution region, 2) analyzing a plurality of dominant components within a sound signal, 3) removing a compon... | 10/02/2007 |
| 7251271 | Digital filter design Method and apparatus for designing digital filters are provided. One method includes the steps of determining a real-valued discrete-frequency representation of a desired digital filter and transforming this discrete-frequency representation into a corresponding dis... | 07/31/2007 |
| 7251301 | Methods and systems for providing a noise signal Providing a noise signal comprises providing a first signal corresponding to a first band of a frequency spectrum of the noise signal and providing a first signal low corresponding to the first band of the freguency spectrum of the noise signal. Next, providing a no... | 07/31/2007 |
| 7251530 | Optimizing pitch and other speech stimuli allocation in a cochlear implant Errors in pitch (frequency) allocation within a cochlear implant are corrected in order to provide a significant and profound improvement in the quality of sound perceived by the cochlear implant user. In one embodiment, the user is stimulated with a reference signa... | 07/31/2007 |
| 7248711 | Method for frequency transposition and use of the method in a hearing device and a communication device A method for frequency transposition in a communication device Or a hearing device, respectively, is disclosed by transforming an acoustical signal into an electrical signal (s) and by transforming the electrical signal from time domain into frequency domain to obta... | 07/24/2007 |
| 7233778 | Apparatus and method for converting a signal from a first analog format to a second analog format An apparatus for converting a signal from a first analog format to a second analog format. The apparatus has an input port, a first converter, filters, first mixers, second converters, and an output port. The input port is configured to receive the signal. The signa... | 06/19/2007 |
| 7181034 | Inter-channel communication in a multi-channel digital hearing instrument A multi-channel digital hearing instrument is provided that includes a microphone, an analog-to-digital (A/D) converter, a sound processor, a digital-to-analog (D/A) converter and a speaker. The microphone receives an acoustical signal and generates an analog audio ... | 02/20/2007 |
| 7181297 | System and method for delivering customized audio data A method for providing customized audio data products that includes the steps of (1) storing a machine readable hearing profile for a customer, (2) accepting via a data input device or data network for example, machine readable orders from the customer for a particu... | 02/20/2007 |
| 7162044 | Audio signal processing Systems, devices, and methods are provided to inhibit at least one feedback component of an input audio signal by adjusting a feedback-inhibiting filter through a narrowband subaudible signal. The level of the signal may be determined using an audibility model so as... | 01/09/2007 |
| 7158649 | Hearing aid storage case with hearing aid activity detection A storage case that detects and indicates presence of oscillating or quiescent activity of hearing aids is disclosed. Within the storage case, there is a transducer coupled to a logic circuit. The logic circuit is further coupled to one or more visual cues. The tran... | 01/02/2007 |
| 7155022 | Electromagnetic feedback reduction in communication device The invention relates to a method for reducing feedback caused by electromagnetic interference between an induction coil and an output transducer, a voltage supply or an amplifier or a combination thereof, the method comprising: producing by means of a filter an equ... | 12/26/2006 |
| 7149583 | Method of using non-simultaneous stimulation to represent the within-channel fine structure The present invention provides a cochlear stimulation system and method for capturing and translating FTS in incoming sounds and delivering this information spatially to the cochlea. An embodiment of the system may comprise an FTS estimator/analyzer and a current na... | 12/12/2006 |
| 7139403 | Hearing aid with digital compression recapture Systems, devices, and methods are provided to inhibit apparent amplitude modulation in non-linear processing that causes distortion in a processed signal. One aspect of the invention includes a hearing aid. The hearing aid includes a microphone to receive an input s... | 11/21/2006 |
| 7136346 | Record carrier method and apparatus having separate formats for a stereo signal and a data signal A record carrier carries a stereo signal and a data signal which includes a first data portion and a remaining data portion. A first channel on the record carrier includes a composite signal which is obtained by combining the stereo signal and the first data portion... | 11/14/2006 |
| 7127076 | Method for manufacturing acoustical devices and for reducing especially wind disturbances A method for manufacturing an acoustical device, especially a hearing device. A device casing is provided with an acoustical/electrical input converter arrangement with an electric output. An audio signal processing unit establishes audio signal processing of the de... | 10/24/2006 |
| 7116787 | Perceptual synthesis of auditory scenes An auditory scene is synthesized by applying two or more different sets of one or more spatial parameters (e.g., an inter-ear level difference (ILD), inter-ear time difference (ITD), and/or head-related transfer function (HRTF)) to two or more different frequency ba... | 10/03/2006 |
| 7113559 | Efficient methods for filtering to avoid inter-symbol interference and processing digital signals having large frequency guard bands A circular filtering system that prevents the problem of inter-symbol interference. The circular filtering system utilizes a buffer memory to store samples of a given symbol and provide only these samples to a linear filter such that the output of the filter, for an... | 09/26/2006 |
