BONE CONDUCTIVITY MICROPHONE Russian patent published in 2023 - IPC H04R1/46 H04R1/28 H04R1/08 H04R17/02 H04R7/10 

FIELD: bone conductivity microphones.

SUBSTANCE: bone conduction microphone comprises a multilayer structure formed by a vibration unit and an acoustic transducer unit; a base structure configured to carry the multilayer structure, wherein at least one side of the multilayer structure is physically connected to the base structure. The base structure is configured to vibrate based on an external vibration signal. The vibration unit is configured to deform in response to vibration of the base structure. The acoustic transducer unit is configured to generate an electrical signal based on the deformation of the vibration unit. At least one damping structural layer is located on the upper surface, lower surface and/or inside the multilayer structure and is connected to the base structure, wherein said at least one damping structural layer completely covers one side surface of the base structure.

EFFECT improving the quality of vibration transmission and improving damping to equalize the frequency response of the bone conductivity speaker.

10 cl, 27 dwg