Patent ID: 8005247

Claim:
A hearing aid system, comprising: a sound-to-vibration conversion circuitry; the sound-to-vibration conversion circuitry having a microphone system, an electronic amplifier and a vibrator; a housing for accommodating the vibrator; the vibrator being connected to an abutment adapted to extend through the skin; the abutment being connected to a fixture adapted to be anchored in the skull bone; and the sound-to-vibration conversion circuitry having an A/D converter converting an analogue microphone signal into a digital signal, wherein the sound-to-vibration conversion circuitry converts a sound input signal of 60 dB SPL, to an output for which the average of the output values for 1600 Hz and 2000 Hz is greater than 98 dB OFL (rel 1 μN), and wherein the sound-to-vibration conversion circuitry performs a maximum output for which the average of the maximum output values for 1600 Hz and 2000 Hz is greater than 109 dB OFL (rel 1 μN).