NOISE REDUCTION SYSTEM
First Claim
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1. Earphone apparatus comprising:
- at least one earphone driver operative to receive an input signal and mounted so as to deliver sound to a wearer'"'"'s ear; and
a sensing microphone sensitive to noise around the wearer'"'"'s head but substantially insensitive to the sound generated by the at least one earphone driver;
wherein the earphone apparatus is configured to co-act with an existing remote noise cancellation device, the existing remote noise cancellation device being originally intended for the provision of feedback active control, to enable operation in a feed-forward configuration to effect noise reduction in sound delivered by the at least one earphone driver.
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Accused Products
Abstract
Earphone apparatus includes at least one earphone driver operative to receive an input signal and mounted so as to deliver sound to a wearer'"'"'s ear, and a sensing microphone sensitive to noise around the wearer'"'"'s head but substantially insensitive to the sound generated by the at least one earphone driver. The earphone apparatus is configured to co-act with an existing remote noise cancellation device, the existing remote noise cancellation device being originally intended for the provision of feedback active control, to enable operation in a feed-forward configuration to effect noise reduction in sound delivered by the at least one earphone driver.
12 Citations
22 Claims
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1. Earphone apparatus comprising:
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at least one earphone driver operative to receive an input signal and mounted so as to deliver sound to a wearer'"'"'s ear; and a sensing microphone sensitive to noise around the wearer'"'"'s head but substantially insensitive to the sound generated by the at least one earphone driver; wherein the earphone apparatus is configured to co-act with an existing remote noise cancellation device, the existing remote noise cancellation device being originally intended for the provision of feedback active control, to enable operation in a feed-forward configuration to effect noise reduction in sound delivered by the at least one earphone driver. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A method of upgrading an IFEC noise cancellation system comprising at least one existing remote noise cancellation devices originally configured for the provision of feedback active control when used with an existing feedback earphone, the method comprising:
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providing earphone apparatus comprising; at least one earphone driver operative to receive an input signal and mounted so as to deliver sound to a wearer'"'"'s ear; and a sensing microphone sensitive to noise around the wearer'"'"'s head but substantially insensitive to the sound generated by the at least one earphone driver; wherein the earphone apparatus is configured to co-act with an existing remote noise cancellation device, the existing remote noise cancellation device being originally intended for the provision of feedback active control, to enable operation in a feed-forward configuration to effect noise reduction in sound delivered by the at least one earphone driver; and connecting the earphone apparatus to the at least one existing remote noise cancellation device, whereby the earphone apparatus co-acts with the at least one existing remote noise cancellation device to enable operation in a feed-forward configuration to effect noise reduction in sound delivered by the at least one earphone driver.
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Specification