Patent ReferencesPiezoelectric bone conductive in ear voice sounds transmitting and receiving apparatus Multidirectional feed and flush-mounted surface wave antenna Bone conduction audio listening device and method Apparatus and method for conveying amplified sound to ear Bone conductive ear microphone and method Device for picking up bone-conducted sound in external auditory meatus and communication device using the same Hearing aid device Hybrid behind-the-ear and completely-in-canal hearing aid Two active element in-the-ear microphone system Transmitter-receiver having ear-piece type acoustic transducing part Patent #: 5933506 InventorApplicationNo. 309107 filed on 05/10/1999US Classes:381/312, HEARING AIDS, ELECTRICAL181/130, Auditory canal insert181/135, Ear insert381/315, Remote control, wireless, or alarm381/326Non-air-conducted sound deliveryExaminersPrimary: Kuntz, CurtisAssistant: Harvey, Dionne Attorney, Agent or FirmInternational ClassH04R 025/00AbstractA 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 portion of the external auditory canal to convert bone vibrations of voice sound information into electrical signals. The air conduction sensor resides within the auditory canal and converts air vibrations of the voice sound information into electrical signals. In its preferred form, a speech processor samples output from the bone conduction sensor and the air conduction sensor to filter noise and select the a pure voice sound signal for transmission. The transmission of the voice sound signal may be through a wireless linkage and may also be equipped with a speaker and receiver to enable two-way communication. | |