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Brevets

Référencé par

Brevet citant Date de dépôt Date de délivrance Cessionnaire d'origine Titre
US404125116 oct. 19759 août 1977U.S. Philips CorporationHearing aid to be worn behind the ear of the user and provided with a pressure-gradient microphone
US497248812 juin 198920 nov. 1990Beltone Electronics CorporationEar wax barrier and acoustic attenuator for a hearing aid
US523958818 déc. 198924 août 1993Hearing aid
US532959310 mai 199312 juil. 1994Noise cancelling microphone
US536559519 févr. 199315 nov. 1994Motorola, Inc.Sealed microphone assembly
US544863730 mars 19955 sept. 1995Pan Communications, Inc.Two-way communications earset
US56066076 juin 199525 févr. 1997Pan Communications, Inc.Two-way communications earset
US56640146 juin 19952 sept. 1997Pan Communications, Inc.Two-way communications earset
US579387522 avr. 199611 août 1998Cardinal Sound Labs, Inc.Directional hearing system
US584498421 nov. 19941 déc. 1998Pan Communications, Inc.Two-way communications earset with filter
US59335102 oct. 19973 août 1999Siemens Information and Communication Networks, Inc.User selectable unidirectional/omnidirectional microphone housing
US59498892 sept. 19977 sept. 1999The United States of America as represented by the Secretary of the NavyDirectional hearing aid
US61608968 mai 199812 déc. 2000Motorola, Inc.Variable frequency response microphone porting system
US62723603 juil. 19977 août 2001Pan Communications, Inc.Remotely installed transmitter and a hands-free two-way voice terminal device using same
US65977936 août 199822 juil. 2003Resistance Technology, Inc.Directional/omni-directional hearing aid microphone and housing
US668102118 déc. 199820 janv. 2004Siemens Hearing Instruments, Inc.Directional ITE hearing aid using dual-input microphone
US710319612 mars 20025 sept. 2006Knowles Electronics, LLC.Method for reducing distortion in a receiver
US713649816 déc. 199914 nov. 2006Koninklijke Philips Electronics N.V.Loudspeaker having a dual chamber acoustical enclosure with two external vents and one internal vent
US72457333 févr. 200317 juil. 2007Siemens Hearing Instruments, Inc.Hearing instrument microphone arrangement with improved sensitivity
US767605010 mars 20069 mars 2010Siemens Audiologische Technik GmbHCover fixture for at least one microphone input of a hearing device
US775628430 janv. 200613 juil. 2010Songbird Hearing, Inc.Hearing aid circuit with integrated switch and battery
US775628530 janv. 200613 juil. 2010Songbird Hearing, Inc.Hearing aid with tuned microphone cavity
US81213269 oct. 200921 févr. 2012K/S HimppHearing aid
US81213279 oct. 200921 févr. 2012K/S HIMPPHearing aid