Multi Profile Hearing Protection Headset
4 Assignments
0 Petitions
Accused Products
Abstract
A hearing protection headset that can be worn by a user includes left and right earcups. The headset includes a radio communication system enabling at least one radio signal to be received and played through one or both of the earcups. Noise control circuitry in the headset is configurable by a user between at least three active modes of operation—the circuitry having a first active mode in which the headset provides automatic noise reduction, a second active mode in which the headset provides automatic noise cancellation, and a third active mode in which the headset provides both automatic noise reduction and automatic noise cancellation. A switch is manually operable by the user to configure the circuitry between the first active mode and the second active mode and the third active mode.
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Citations
16 Claims
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1. (canceled)
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2. A hearing protection headset that can be worn by a user, the headset including left and right earcups, the headset including:
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a radio communication system enabling at least one radio signal to be received and played through one or both of the earcups; a noise control circuitry configurable by a user between at least three active modes of operation involving one or both of (i) automatic noise reduction that limits the overall amplitude of ambient sound and (ii) automatic noise cancellation which filters out selected repetitive sounds so that non-repetitive sounds can be heard more clearly; the circuitry having a first active mode in which the headset provides the automatic noise reduction but does not provide the automatic noise cancellation, a second active mode in which the headset provides the automatic noise cancellation but does not provide the automatic noise reduction, and a third active mode in which the headset provides both the automatic noise reduction and the automatic noise cancellation; and a switch that is manually operable by the user to configure the circuitry between the first active mode and the second active mode and the third active mode, wherein; each earcup includes (i) a first speaker for use in radio communications and not used in the noise control circuitry, (ii) a second speaker that is part of the noise control circuitry and that is not used in radio communications, and (iii) an internal microphone that is part of the noise control circuitry and that is mounted on the second speaker; the second speaker and the internal microphone being active for the automatic noise cancellation operation when the circuitry is in either the second mode or the third mode; the second speaker being active and the internal microphone being inactive for the automatic noise reduction operation when the circuitry is in the first mode. - View Dependent Claims (3, 4, 5, 8)
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6. (canceled)
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7. (canceled)
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9. (canceled)
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10. (canceled)
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11. A hearing protection headset that can be worn by a user, the headset including left and right earcups, the headset including:
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a radio communication system enabling at least one radio signal to be received and played through one or both of the earcups; a noise control circuitry configurable by a user between at least three active modes of operation involving one or both of (i) automatic noise reduction that limits the overall amplitude of ambient sound and (ii) automatic noise cancellation which filters out selected repetitive sounds so that non-repetitive sounds can be heard more clearly; the circuitry having a first active mode in which the headset provides the automatic noise reduction but does not provide the automatic noise cancellation, a second active mode in which the headset provides the automatic noise cancellation but does not provide the automatic noise reduction, and a third active mode in which the headset provides both the automatic noise reduction and the automatic noise cancellation; and a switch that is manually operable by the user to configure the circuitry between the first active mode and the second active mode and the third active mode; wherein the headset monitors the ambient sound level via the external microphones and compares with programmed parameters to determine the optimum mode of operation. - View Dependent Claims (12)
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13. A hearing protection headset that can be worn by a user, the headset including left and right earcups, the headset including:
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a radio communication system enabling at least one radio signal to be received and played through one or both of the earcups; a noise control circuitry configurable by a user between at least three active modes of operation involving one or both of (i) automatic noise reduction that limits the overall amplitude of ambient sound and (ii) automatic noise cancellation which filters out selected repetitive sounds so that non-repetitive sounds can be heard more clearly; the circuitry having a first active mode in which the headset provides the automatic noise reduction but does not provide the automatic noise cancellation, a second active mode in which the headset provides the automatic noise cancellation but does not provide the automatic noise reduction, and a third active mode in which the headset provides both the automatic noise reduction and the automatic noise cancellation; and a switch that is manually operable by the user to configure the circuitry between the first active mode and the second active mode and the third active mode; wherein each earcup includes (i) a first speaker for use in radio communications but not in noise control, (ii) a second speaker that is part of the noise control circuitry and that is not for use in radio communications, and (iii) an internal microphone that is part of the noise control circuitry and that is mounted on the second speaker; the second speaker and the internal microphone both being active for the automatic noise cancellation operation when the circuitry is in either the second mode or the third mode; the second speaker being active and the internal microphone being inactive for the automatic noise reduction operation when the circuitry Is in the first mode; a controller; the circuitry when operating in the automatic noise reduction mode having a feed forward path including an external microphone, a preamplifier, a compression and noise gating unit, an analog controller, and the second speaker, and not including the internal microphone; the circuitry when operating in the automatic noise cancellation mode having a feedback path including the second speaker and the internal microphone and the controller, and not including the external microphone, the preamplifier, and the compression and noise gating unit. - View Dependent Claims (14, 15, 16)
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Specification