Gerhard Pfannenmüller

Data transmission device for hearing aids

Data transmission device for hearing aid using modulated oscillator circuit having coil used as both transmission and reception antenna

Circuit arrangement with a switch amplifier

Hearing aid with data transmission apparatus

Hearing apparatus with automatic self trimming and corresponding method

Hearing device with automatic self trim control and corresponding method

Hearing aid i.e. behind-the-ear hearing aid, has antenna-tapped coil transmitting and receiving radio waves, where branch line of antenna-tapped coil is connected with power supply line of hearing aid

Hörvorrichtung mit automatischer Selbsttrimmung und entsprechendes Verfahren

Datenübertragungseinrichtung für Hörgeräte

Data transmission apparatus for hearing aids