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US 10,477,312 B2Granted
Earphone with active suppression of ambient noise
AssigneeAKG Acoustics GmbH
InventorsRichard Pribyl, Michael Perkmann, Hannes Lehdorfer
Life of this patent
Estimating the term…
Abstract
An earphone is provided that can decrease a time delay between a microphone and a loudspeaker. The earphone includes a microphone incorporated with the membrane of loudspeaker. The loudspeaker and the microphone are connected by connection lines to an electronic circuit.
Claims17
An earphone with active suppression of ambient noise comprising:
- an electrodynamic loudspeaker with a membrane;
- a microphone provided in an interior of the earphone;
- an electronic circuit, with which the loudspeaker and the microphone are connected by a connection line, where the microphone is directly attached to the membrane;
- and
- where the connection line of the microphone comprises a conductor track sputtered onto the membrane of the electrodynamic loudspeaker,
- where the membrane comprises an opening, and the microphone is disposed in the opening, and
- where a weight of the microphone is substantially equivalent to a weight of a portion of the membrane that would occupy the opening.
4 more elements
A loudspeaker system with active suppression of ambient noise comprising:
- a loudspeaker comprising a diaphragm;
- a microphone coupled to the diaphragm to detect interfering noise;
- and
- an electronic circuit connected to the loudspeaker and the microphone to substantially suppress the interfering noise with the loudspeaker,
- where the diaphragm comprises an opening, and the microphone is disposed in the opening, and
- where a weight of the microphone is substantially equivalent to a weight of a portion of the diaphragm that would occupy the opening.
3 more elements
An earphone with active suppression of ambient noise comprising:
- an electrodynamic loudspeaker comprising a membrane provided in an interior of the earphone;
- a microphone coupled to the membrane for detecting ambient noise;
- signal lines connected to the microphone;
- and
- an electronic circuit connected to the signal lines and the loudspeaker to control oscillations of the membrane to substantially suppress the ambient noise,
- where the membrane comprises an opening, and the microphone is disposed in the opening, and
- where a weight of the microphone is substantially equivalent to a weight of a portion of the membrane that would occupy the opening.
4 more elements
Dependencies are inferred from the claim text.