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US 10,757,503 B2Granted
Active noise control with planar transducers
AssigneeAudeze, LLC
InventorDragoslav Colich
Life of this patent
Estimating the term…
Abstract
Active noise control (ANC), including active and adaptive noise cancellation (ANC) with non-voice-coil transducers having highly linear transfer functions, such as planar transducers, planar magnetic transducers, electro-static transducers, and piezo-electric transducers. This active and adaptive noise cancellation (ANC) may be used with: planar transducer headphones and earphones; open-backed and closed-back headphones and earphones; in-ear earphones, and phase plugs.
Claims27
An audio device comprising:
- an active noise control (ANC) system including an input for receiving an audio source signal, at least one microphone input for receiving microphone signals, and an output for providing a corrected audio signal;
- at least one microphone connected to the at least one microphone input;
- and
- a transducer including an input for receiving the corrected audio signal from the ANC system and an output for providing output sound waves, such that the transducer is a non-voice-coil transducer, and wherein the transducer further comprises
- a diaphragm including an electro-mechanical system for converting the input into the output for providing sound waves, and
- a mechano-electrical system coupled to the diaphragm having a mechano-electrical output such that motion of sound waves impacting the diaphragm generates a proportionate mechano-electrical output signal, wherein the mechano-electrical system acts as the at least one microphone connected to the at least one microphone input.
3 more elements
An audio device comprising:
- an active noise control (ANC) system including an input for receiving an audio source signal, at least one microphone input for receiving microphone signals, and an output for providing a corrected audio signal;
- at least one microphone connected to the at least one microphone input;
- a transducer including an input for receiving the corrected audio signal from the ANC system and an output for providing output sound waves,
- such that the transducer is a non-voice-coil transducer;
- and
- a housing having:
- a proximal acoustic opening configured for positioning proximal to an ear, and
- a distal surface located distally from the proximal acoustic opening,
- wherein the non-voice-coil transducer is disposed in the housing such that the non-voice-coil transducer divides the housing into
- a proximal cavity between the non-voice-coil transducer and the proximal acoustic opening, and
- a distal cavity between the non-voice-coil transducer and the distal surface, and
- at least one microphone disposed in the housing.
9 more elements
An audio device comprising:
- an active noise control (ANC) system including an input for receiving an audio source signal, at least one microphone input for receiving microphone signals, and an output for providing a corrected audio signal;
- at least one microphone connected to the at least one microphone input,
- a transducer including an input for receiving the corrected audio signal from the ANC system and an output for providing output sound waves,
- such that the transducer is a planar transducer;
- a housing having
- a proximal acoustic opening configured for positioning in an ear canal, and
- a distal surface located distally from the proximal acoustic opening,
- the planar transducer disposed in the housing such that the planar transducer divides the housing into
- a proximal cavity between the planar transducer and the proximal acoustic opening, and
- a distal cavity between the planar transducer and the distal surface;
- and
- at least one microphone disposed in the housing.
9 more elements
Dependencies are inferred from the claim text.