Abstract: Noise reduction methods and systems for reducing unwanted sounds in signals received from an arrangement of microphones are disclosed, the method including the steps of: sensing sound sources distributed around a specified target direction by way of an arrangement of microphones to produce left and right microphone output signals; determining the magnitude or power of the left and right microphone signals; attenuating the signals based on the difference of the magnitudes or powers or values derived from the magnitudes or powers of the left and right microphone signals.
Abstract: A system and method for reducing unwanted sounds in signals received from an arrangement of microphones including: sensing sound sources distributed around a specified target direction by way of an arrangement of microphones to produce left and right microphone output signals; determining the power of the left and right microphone signals; determining the minimum of the two microphone power measures; and, attenuating the signals based on a comparison of the left and right microphone power measures with the minimum power measure.
Abstract: A system and method of producing a directional output signal is described including the steps of: detecting sounds at the left and rights sides of a person's head to produce left and right signals; determining the similarity of the signals; modifying the signals based on their similarity; and combining the modified left and right signals to produce an output signal.
Type:
Grant
Filed:
December 1, 2009
Date of Patent:
February 10, 2015
Assignee:
Hear IP Pty Ltd.
Inventors:
Jorge Patricio Mejia, Harvey Albert Dillon
Abstract: A system and method for estimating the direction of arrival of sounds. One method including the steps of: forming a reference signal; detecting sound with two or more spatially separated, directional or spatially separated directional, microphones to produce two or more output signals; calculating the relationships between each of the two or more output signals and the reference signal; and estimating the direction of arrival based on differences between the relationships.
Abstract: The present invention provides methods for fabricating an electrode device component, the method comprising the steps of: (i) providing a biocompatible carrier material, and (ii) performing an ablative method on the biocompatible carrier material to form a recess, the recess capable of receiving a biocompatible electrode material. The components so fabricated are useful as carriers for biological electrodes, such as cochlear electrodes and nerve cuff electrodes.
Abstract: 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.
Type:
Grant
Filed:
May 31, 2007
Date of Patent:
June 17, 2014
Assignee:
Hear IP Pty Ltd.
Inventors:
Jorge Patricio Mejia, Simon Carlille, Harvey Albert Dillon
Abstract: A system and method for reducing unwanted sounds in signals received from an arrangement of microphones including: sensing sound sources distributed around a specified target direction by way of an arrangement of microphones to produce left and right microphone output signals; determining the power of the left and right microphone signals; determining the minimum of the two microphone power measures; and, attenuating the signals based on a comparison of the left and right microphone power measures with the minimum power measure.
Abstract: A signal processing device for use in electroencephalography (EEG) is disclosed including: an input for receiving an electrical signal detected at a location on the head of a patient; at least one amplifier; a high-cut filter; and at least one output; wherein the signal is filtered by the high-cut filter prior to being amplified by the amplifier, the amplified signal being made available at the at least one output.
Abstract: A system and method for estimating the direction of arrival of sounds. One method including the steps of: forming a reference signal; detecting sound with two or more spatially separated, directional or spatially separated directional, microphones to produce two or more output signals; calculating the relationships between each of the two or more output signals and the reference signal; and estimating the direction of arrival based on differences between the relationships.
Abstract: A system and method of producing a directional output signal is described including the steps of: detecting sounds at the left and rights sides of a person's head to produce left and right signals; determining the similarity of the signals; modifying the signals based on their similarity; and combining the modified left and right signals to produce an output signal.
Type:
Application
Filed:
December 1, 2009
Publication date:
December 1, 2011
Applicant:
HEAR IP Pty Ltd.
Inventors:
Jorge Patricio Mejia, Harvey Albert Dillon