Bone conduction transducer with improved high frequency response
AssigneeOsseofon AB
InventorBo Hakansson
Life of this patent
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Abstract
A bone conduction transducer comprising a first seismic mass and a second mass connected to each other by a first spring suspension, and where the first mass and the first spring suspension creates a first mechanical resonance f1 in the low frequency range, and that a second mechanical resonance f2 is created in the high frequency range by interaction between the second mass and a second spring compliance that is introduced between the second mass and the skull.
Claims13
A bone conduction transducer comprising a first seismic mass mi and a second mass m2 connected to each other by a first spring suspension with compliance, where the coil and magnetic circuits are integrated into the two masses and are generating dynamic forces in the air gaps formed between the first and second masses when a current is supplied to the coil, and where the first mass In1 and the first spring suspension creates a first mechanical resonance f\ in the low frequency range,
- wherein a second mechanical resonance is created in the high frequency range by interaction between the second mass m2 and a second spring compliance that is introduced between the second mass and the load.
Dependencies are inferred from the claim text.