MICROPHONE Russian patent published in 2023 - IPC H04R17/10 

FIELD: acoustics; microphones.

SUBSTANCE: microphone comprises a housing, a vibration transducer, wherein the vibration transducer is located in the housing and is configured to generate vibration in response to an external sound signal transmitted inside the shell structure through an opening in the shell structure. The vibration transducer contains the first element of the vibration sensor and the second element of the vibration sensor, arranged in series from top to bottom. Both vibration sensors are connected to the shell structure through the peripheral side, between the first element of the vibration sensor and the second element of the vibration sensor there is a vibration transmission element in a tubular structure, and the vibration transmission element, the first element of the vibration sensor and the second element of the vibration sensor limit the cavity, while at least a part of the construction of the first element of the vibration sensor and the second element of the vibration sensor are configured to create vibration in response to an external sound signal; and two acoustoelectric conversion elements respectively configured to receive vibration from the vibration sensor assembly to generate an electrical signal, wherein said at least two acoustoelectric conversion elements have different frequency properties in response to vibration of the vibration sensor assembly. Wherein, the vibration sensor assembly is connected to the shell structure through the peripheral side of the vibration sensor assembly, while at least part of the vibration sensor assembly structure is configured to create vibration in response to an external sound signal.

EFFECT: simplified separation of frequencies into subbands, simplified design, improved signal quality.

8 cl, 20 dwg