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| Number | Title | Issue Date |
| 6718043 | Voice sound transmitting apparatus and system including expansion port A voice sound transmitting and receiving unit having an earpiece that is adapted for insertion into the external auditory canal of a user, the earpiece having an expansion module. The voice sound transmitting unit includes a sensor, which may be a bone conduction se... | 04/06/2004 |
| 6707920 | Implantable hearing aid microphone An improved implantable hearing aid microphone comprises a housing having an internal chamber with an aperture thereto and a first diaphragm sealably positioned across the aperture. A microphone having a second diaphragm is positioned within the chamber to define an... | 03/16/2004 |
| 6694035 | System for conveying musical beat information to the hearing impaired A beat detection system provides tactile stimulation in response to musical characteristics and in particular to repetitive musical beat information. The device processes multiple acoustic bands and separates out the beat information from each band. Each ... | 02/17/2004 |
| 6643378 | Bone conduction hearing aid A bone conduction hearing aid includes a vibrator carried by the insertion end of the hearing aid. When the hearing aid is inserted into the ear canal of a patient, the vibrator is positioned in the ear canal adjacent the mastoid bone. A microphone receiv... | 11/04/2003 |
| 6631197 | Wide audio bandwidth transduction method and device The present invention is directed to a communication system wherein bone conducted ultrasonic signals are used as carriers to efficiently produce high fidelity, wide audio bandwidth sound. Exemplary embodiments rely on the use of modulation techniques whi... | 10/07/2003 |
| 6626822 | Implantable microphone having improved sensitivity and frequency response Implantable microphone devices that may be utilized in hearing systems are provided. An implantable microphone device allows the implantable microphone's frequency response and sensitivity to be selected. A microphone device with an increased membrane fle... | 09/30/2003 |
| 6554761 | Flextensional microphones for implantable hearing devices This relates to flextensional microphones which are made up of a piezoelectric substrate having opposing surfaces, typically parallel surfaces when the substrate is crystalline or ceramic, and at least one sound receiving surface physically tied to the pi... | 04/29/2003 |
| 6519345 | Double-functioned hand-free device for cellular telephone A double-functioned hand-free device for cellular telephone comprises a microphone casing having one end connected with a neck hanger, wherein a direct sound-receiver circuit and a circuit for sensing vibration of vocal cords are housed in the microphone ... | 02/11/2003 |
| 6488616 | Hearing aid transducer support A support for input and output transducers of a hearing aid is implanted in the middle ear. The support, which is attached to the mastoid bone, can be a single component or comprise two adjustable components. In one embodiment, an arm extends from the pro... | 12/03/2002 |
| 6463157 | Bone conduction speaker and microphone A bone conduction microphone and speaker mountable in contact with a user's head or head area, each utilize a strategically mounted audio transducer that is preferably a piezoelectric ceramic bender. In the case of the speaker, the bender is coupled to an... | 10/08/2002 |
| 6415034 | Earphone unit and a terminal device The scope of the present invention is an earphone unit (11) to be mounted either on external ear (18) or in auditory tube (10), in which unit both a speech registering microphone (13) and a speech reproducing ear capsule (12) have been placed. The earphon... | 07/02/2002 |
| 6408081 | Bone conduction voice transmission apparatus and system A voice sound transmitting unit having an earpiece that is adapted for insertion into the external auditory canal of a user, the earpiece having both a bone conduction sensor and an air conduction sensor. The bone conduction sensor is adapted to contact a... | 06/18/2002 |
| 6389140 | Ceramic piezoelectric type microphone A ceramic piezoelectric type microphone includes a lower cover and an upper cover, and a receiving space confined by the lower and upper covers when they are connected. A signal wire is led in the receiving space via an extension portion of the lower cove... | 05/14/2002 |
| 6381336 | Microphones for an implatable hearing aid A implantable sealed microphone (50) includes a diaphragm (52) having a thin central region (54) surrounded by a thicker rim (56). One side of sheet electret material (72) is bonded to the diaphragm (52) while the other side contacts a roughened plate (82... | 04/30/2002 |
| 6141427 | Bone-conduction speaker A yoke 1 having a center magnetic pole 2 around which a voice coil is wound is provided, the yoke 1 is extended in four directions, magnets 4 are disposed on two parts 7 and 7 facing to each other among the extensions, respectively, and diaphragm fixing s... | 10/31/2000 |
| 6137889 | Direct tympanic membrane excitation via vibrationally conductive assembly A device to be worn in the ear of a subject provides a direct vibrational drive to the tympanic membrane through a vibrationally conductive assembly which couples vibrations from a vibratory transducer positioned within the ear canal proximal to the tympa... | 10/24/2000 |
| 6118882 | Communication method Audio apparatus comprises a base unit including circuitry for generating electrical signals representing sounds and at least one earphone adapted to receive the electrical signals and to reproduce sounds represented by the signals, in which the apparatus ... | 09/12/2000 |
| 6115477 | Denta-mandibular sound-transmitting system A device for transmitting sound waves between a signal source and a user's ears, wherein the sound waves bypass the air. The invention generally comprises a signal source configured to produce signals representative of sound, and a sound-transmitting elem... | 09/05/2000 |
| 6094492 | Bone conduction voice transmission apparatus and system A voice sound transmitting unit having an earpiece that is adapted for insertion into the external auditory canal of a user, the earpiece having both a bone conduction sensor and an air conduction sensor. The bone conduction sensor is adapted to contact a... | 07/25/2000 |
| 6084975 | Promontory transmitting coil and tympanic membrane magnet for hearing devices In a hearing system, a transmitting coil is positioned on the promontory centered medial to the umbo of the tympanic membrane while securing the magnet to a surface of said tympanic membrane or to the manubrium of the malleus. The system does not require ... | 07/04/2000 |
| 5949895 | Disposable audio processor for use with implanted hearing devices A disposable audio processor for use with implanted hearing devices is provided. The audio processor may include a microphone, application specific integrated circuit performing both signal processing and signal modulation, a battery, and a coil. The audi... | 09/07/1999 |
| 5859916 | Two stage implantable microphone Two stage implantable microphone devices suitable for use in hearing systems are provided. An implantable microphone device may include a housing including a diaphragm with the housing and diaphragm enclosing a chamber; a microphone coupled to the housing... | 01/12/1999 |
| 5836863 | Hearing aid transducer support A support for input and output transducers of a hearing aid is implanted in the middle ear. The support, which is attached to the mastoid bone, can be a single component or comprise two adjustable components. In one embodiment, an arm extends from the pro... | 11/17/1998 |
| 5790684 | Transmitting/receiving apparatus for use in telecommunications A transmitting/receiving apparatus for use in telecommunications is provided which makes the user hand-free and is free from such inconveniences as difficulty in utterance and howling and crosstalk between an earphone and a microphone, and which includes:... | 08/04/1998 |
| 5784478 | Audible environment awareness restoring device An audible environment awareness restoring device allows a person to perceive, through his sense of touch, audible sounds corresponding to the human voice. A bone conduction speaker or transducer is mounted against a person's body, preferably against the ... | 07/21/1998 |
| 5778079 | Skin touch-controlled piezoelectric microphone A skin touch-controlled piezoelectric microphone which includes a housing having a thin bottom side that admits vibrating waves from the user's skin when the user talks, a metal base plate mounted in the housing and having a negative signal electrode cont... | 07/07/1998 |
| 5757934 | Transmitting/receiving apparatus and communication system using the same A transmitting/receiving apparatus to be used as fitted into an external auditory meatus is provided which ensures less inclusion of noise and less possibility of howling and allows the user to hear the voice of the communication partner clearly, and whic... | 05/26/1998 |
| 5757935 | Audio listening device for the hearing impaired An audio listening device includes a circuit for amplifying sound source signals and a mechanism including a bone conduction vibrator transforming an output signal of the amplifying circuit into a vibration. A vibration source transforms the output of the... | 05/26/1998 |
| 5460593 | Method and apparatus for imparting low amplitude vibrations to bone and similar hard tissue Vibrations for application to hard living tissue, such as bones, teeth, etc., are derived from a magnetostrictive element disposed in a varying electromagnetic field to create dimensional variations in the magnetostrictive element. In an audiodontic vibra... | 10/24/1995 |
| 5456654 | Implantable magnetic hearing aid transducer An electromagnetic transducer for improving hearing in a hearing impaired person comprises a magnet assembly and a coil secured inside a housing which is fixed to an ossicle or a middle ear. The coil is more rigidly secured to the housing than the magnet.... | 10/10/1995 |
| 5455842 | Method and apparatus for underwater communication Waterborne acoustic signals are received and processed into electrical driver signals to energize a transducer held in selectively controllable vibration-transmitting engagement with a tooth of an underwater diver. The transducer converts the electrical s... | 10/03/1995 |
| 5447489 | Bone conduction hearing aid device This invention provides a hearing aid of the kind which has a transmitter element and a receiver-transducer element having a vibrating element. The receiver element is suitable for being placed, preferably movably, in the mouth of the user. The receiver e... | 09/05/1995 |
| 5434924 | Hearing aid employing adjustment of the intensity and the arrival time of sound by electronic or acoustic, passive devices to improve interaural perceptual balance and binaural processing A hearing aid for a person with asymmetric hearing perception (a weaker ear system and a better ear system) employs conventional frequency-selective amplification (26L) of sound coming to the weaker ear's system and frequency selective amplitude adjustmen... | 07/18/1995 |
| 5425104 | Inconspicuous communication method utilizing remote electromagnetic drive An inconspicuous hearing system is described that uses a coil to electromagnetically couple with, and therefore drive, a permanent magnet attached to the tympanic membrane or ossicular chain. This hearing system enables hearing impaired individuals, as we... | 06/13/1995 |
| 5345509 | Transducer with ear canal pickup A transducer assembly includes a bi-directional transducer coupled to an ear mold for transmitting and receiving sounds from a remote location. A by-pass channel is provided in the ear mold for ambient sounds which by-pass the transducer.... | 09/06/1994 |
| 5338287 | Electromagnetic induction hearing aid device An electromagnetic induction type hearing aid which comprises (1) an electromagnetic transmitter having an input for receiving a radiated acoustical signal and an output for radiating an alternating electromagnetic signal whose frequency components are de... | 08/16/1994 |
| 5323468 | Bone-conductive stereo headphones An arrangement was devised for the delivery of stereophonic soundwaves through the mastoid bone structure of the human skull. The system allows for the partial bypassing of the use of the auditory canals, and for the conduction of audio output signals gen... | 06/21/1994 |
| 5295193 | Device for picking up bone-conducted sound in external auditory meatus and communication device using the same A device for picking up bone-conducted sound in the external auditory meatus includes a fitting portion for accommodation in a navicular cavity formed between a tragus cartilage portion and an entrance portion of an external auditory meatus, and a bone co... | 03/15/1994 |
| 5282253 | Bone conduction microphone mount A bone conduction microphone which fits into the ear of the user and which has means which abuts against the pinna of the ear causing a counteracting force to resiliently push the device against a wall of the ear canal nearest the back of the head, where ... | 01/25/1994 |
| 5280524 | Bone conductive ear microphone and method An ear piece device configured for being supported in the ear and providing a microphone which is sensitive only to sounds conducted within the skull of the user is contained within a housing which is configured at one end to fit snugly at the ear canal o... | 01/18/1994 |
