Transducer, headphone and method for reducing noise
First Claim
1. A transducer for reducing a noise in a cavity of an ear cup of a headphone wherein the transducer is connected to the headphone wherein the transducer extends inward with respect to the cavity of the ear cup wherein the headphone is attachable to an ear of a user, the transducer comprising:
- a cap having walls defining an interior of the cap; and
a diaphragm having a first side and a second side wherein the first side is opposite to the second side of the diaphragm wherein the first side has first conductors in a first spiral pattern wherein the first side has first gaps between the first conductors wherein the second side has second conductors in a second spiral pattern wherein the second side has second gaps between the second conductors wherein the first gaps of the first side do not coincide with the second gaps of the second side wherein the diaphragm is inserted into the interior of the cap wherein an audio signal is transmitted by the transducer wherein the audio signal reduces the noise.
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Accused Products
Abstract
A transducer, a headphone and a method reduce noise and/or ambient sounds. The headphone has a microphone, a transducer and/or an electrical circuit for producing and/or for transmitting an anti-noise sound wave and/or a noise compensation signal inside an ear cup of the headphone. The anti-noise sound wave and/or the noise compensation signal cancels, dampens and/or reduces a sound wave of the noise and/or of the ambient sounds inside the ear cup. The transducer produces and/or transmits an audio signal which is received by an ear of a user. The microphone and the transducer are connected to, are attached to and/or are in communication with the electrical circuit within the headphone. The transducer has a double-sided diaphragm with concentric circular corrugations and/or foil spiral conductors on each side of the diaphragm. The microphone inside the ear cup is covered by and/or is connected to a sound absorbing material inside the ear cup of the headphone. An ear cushion having a inner side and an outer side is attached to and/or is connected to the ear cup for receiving an ear of a user. The inner side and the outer side of the ear cushion are made from an acoustically resistive material and an acoustically isolating material.
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Citations
27 Claims
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1. A transducer for reducing a noise in a cavity of an ear cup of a headphone wherein the transducer is connected to the headphone wherein the transducer extends inward with respect to the cavity of the ear cup wherein the headphone is attachable to an ear of a user, the transducer comprising:
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a cap having walls defining an interior of the cap; and
a diaphragm having a first side and a second side wherein the first side is opposite to the second side of the diaphragm wherein the first side has first conductors in a first spiral pattern wherein the first side has first gaps between the first conductors wherein the second side has second conductors in a second spiral pattern wherein the second side has second gaps between the second conductors wherein the first gaps of the first side do not coincide with the second gaps of the second side wherein the diaphragm is inserted into the interior of the cap wherein an audio signal is transmitted by the transducer wherein the audio signal reduces the noise. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A headphone for reducing a noise transmitted from a source remote with respect to the headphone wherein a sound wave corresponds to the noise, the headphone comprising:
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an ear cup having walls defining a cavity wherein the ear cup is sized to receive an ear of a user wherein the ear of the user is insertable into the ear cup;
a microphone connected to the ear cup wherein the microphone is located within the cavity of the ear cup;
a cover connected to the microphone wherein the cover is located between the microphone and the cavity of the ear cup wherein the cover is an acoustic filter to the microphone wherein the microphone identifies the sound wave of the noise inside the cavity of the ear cup; and
a first transducer connected to the ear cup wherein the first transducer is connected to the microphone wherein the first transducer transmits an audio signal into the cavity of the ear cup wherein the noise in the cavity is reduced by the audio signal. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. A method for reducing a noise wherein the noise is transmitted from a source which is remote with respect to an ear of a user wherein a sound wave corresponds to the noise, the method comprising the steps of:
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providing a headphone sized to receive the ear of the user wherein the headphone has walls defining a cavity wherein a planar ribbon transducer is connected to the headphone wherein the planar ribbon transducer wherein the planar ribbon transducer has a diaphragm;
identifying the sound wave of the noise; and
transmitting an anti-noise sound wave into the cavity of the headphone via the planar ribbon transducer wherein the anti-noise sound wave has a polarity which is opposite to the sound wave of the noise. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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21. A headphone for reducing a noise transmitted from a source wherein the source is remote with respect to the headphone wherein a sound wave corresponds to the noise, the headphone comprising:
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an ear cup having walls defining a cavity wherein the ear cup is sized to receive an ear of a user wherein the noise is transmitted into the cavity of the ear cup;
means for identifying the sound wave of the noise wherein the means for identifying the sound wave connects to the ear cup;
means for filtering the sound wave of the noise inside the cavity of the ear cup wherein the means for filtering the sound wave covers the means for identifying the sound wave of the noise; and
means for generating an audio signal within the cavity of the ear cup wherein the means for generating an audio signal is in communication with the means for identifying the sound wave wherein the audio signal reduces the noise. - View Dependent Claims (22, 23, 24, 25, 26, 27)
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Specification