Electroacoustic transducer with diaphragm securing structure and method
First Claim
1. An electroacoustic transducer, including:
- at least one stator member having an operating surface for positioning adjacent an emitter diaphragm;
an emitter diaphragm suspended adjacent to and spaced a sufficient distance from the operating surface of the stator member to enable diaphragm oscillation in response to an applied signal voltage to permit diaphragm movement within at least one emitter section without contacting the operating surface of the stator member;
said diaphragm being configured with alternating peaks and valleys extending along a longitudinal dimension of the diaphragm, including an increased stiffness orientation which provides greater directional stiffness along the longitudinal dimension, wherein the alternating a securing structure applied in transverse orientation with respect to the stiffness orientation at the diaphragm with respect to the operating surface of the stator member to secure the diaphragm in a fixed position.
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Accused Products
Abstract
An electroacoustic transducer which has at least one stator member with an operating surface and a suspended emitter diaphragm spaced from the operating surface of the stator member to enable the diaphragm to oscillate in response to an applied signal voltage. The diaphragm has increased stiffness in a direction along the diaphragm and within the emitter section to enable the emitter diaphragm to oscillate without applying tension in the direction of stiffness. A clamp member secures the diaphragm to maintain the diaphragm in a fixed position relative to the stator to minimize distortion. The clamp member is positioned to define at least two isolated emitter sections for enhancing the frequency response of the transducer.
A method is also provided for generating audio output from an electroacoustic transducer. A stator member with an operating surface is positioned adjacent to an emitter diaphragm, which is suspended and spaced a sufficient distance from the operating surface of the stator member to enable diaphragm oscillation in an emitter section of the diaphragm in response to an applied signal voltage. The diaphragm is configured with increased stiffness longitudinally along the diaphragm and within the emitter section to enable the emitter diaphragm to oscillate without applying tension in the direction of stiffness. A clamp is positioned between the diaphragm and the operating surface of the stator member to maintain the diaphragm in a fixed position relative to the stator. Emitter sections on the diaphragm are established by the clamp to provide complementary resonant frequencies, to enhance the frequency response of the transducer.
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Citations
70 Claims
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1. An electroacoustic transducer, including:
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at least one stator member having an operating surface for positioning adjacent an emitter diaphragm;
an emitter diaphragm suspended adjacent to and spaced a sufficient distance from the operating surface of the stator member to enable diaphragm oscillation in response to an applied signal voltage to permit diaphragm movement within at least one emitter section without contacting the operating surface of the stator member;
said diaphragm being configured with alternating peaks and valleys extending along a longitudinal dimension of the diaphragm, including an increased stiffness orientation which provides greater directional stiffness along the longitudinal dimension, wherein the alternating a securing structure applied in transverse orientation with respect to the stiffness orientation at the diaphragm with respect to the operating surface of the stator member to secure the diaphragm in a fixed position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. An electroacoustic transducer, including:
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opposing stators substantially parallel to each other, each stator having an operating surface facing the operating surface of the opposing stator;
an emitter diaphragm suspended between the opposing stators and spaced a sufficient distance from the operating surfaces of the stators to enable diaphragm oscillation in an emitter section of the diaphragm in response to an applied signal voltage without contacting the operating surfaces of the stators. the diaphragm being configured with alternating peaks and valleys extending along a longitudinal dimension of the diaphragm, including an increased stiffness orientation which provides greater directional stiffness along the longitudinal dimension, wherein the alternating peaks and valleys produce acoustic output; and
a securing structure positioned between the diaphragm and the operating surface of each stator to secure the diaphragm in a fixed position relative to the stator. - View Dependent Claims (28, 29, 30)
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31. A method for generating audio output from an electroacoustic transducer, comprising the steps of:
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positioning at least one stator member having an operating surface adjacent an emitter diaphragm;
suspending an emitter diaphragm adjacent to and spaced a sufficient distance from the operating surface of the stator member to enable diaphragm oscillation in an emitter section of the diaphragm in response to an applied signal voltage without contacting the operating surface of the stator member;
configuring the diaphragm with alternating peaks and valleys, including at least one increased stiffness orientation which provides greater directional stiffness along a longitudinal direction of the diaphragm and within the emitter section to enable the emitter diaphragm to operably oscillate in the absence of tension applied along the stiffness orientation; and
positioning a securing structure between the diaphragm and the operating surface of the stator member to secure the diaphragm in a fixed position relative to the stator. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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45. A method for generating audio output from an electroacoustic transducer, comprising the steps of:
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disposing opposing stators substantially parallel to each other, each stator having an operating surface facing the operating surface of the opposing stator;
suspending an emitter diaphragm between the opposing stators spaced a sufficient distance from the operating surfaces of the stators to enable diaphragm oscillation in an emitter section of the diaphragm in response to an applied signal voltage without contacting the operating surfaces of the stators, configuring the diaphragm with alternating peaks and valleys extending along a longitudinal dimension of the diaphragm, including an increased stiffness orientation which provides greater directional stiffness along the longitudinal dimension, wherein the alternating peaks and valleys produce acoustic output; and
positioning a securing structure between the diaphragm and the operating surface of the stators to secure the diaphragm in a fixed position relative to the stators. the diaphragm with an orientation which provides a primary directional stiffness along the diaphragm and within the emitter section to enable the emitter diaphragm to operably oscillate in the absence of tension applied along the stiffness orientation; and
positioning a securing structure be(teen the diaphragm and the operating surface of the stators to secure the diaphragm in a fixed position relative to the stators. - View Dependent Claims (46, 47, 48)
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49. An electrostatic transducer, comprising:
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at least one corrugated stator member having an operating surface for positioning adjacent an emitter diaphragm;
an emitter diaphragm suspended adjacent to and spaced a sufficient distance from the operating surface of the stator member to enable diaphragm oscillation in response to an applied signal voltage and to permit diaphragm movement within at least one emitter section without contacting the operating surface of the stator member; and
said diaphragm being configured with at least one increased stiffness orientation which provides greater directional stiffness along a longitudinal dimension of the diaphragm and within the emitter section to enable the emitter diaphragm to operably oscillate at a desired resonant frequency. - View Dependent Claims (50, 51, 52, 53, 54, 55)
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56. An electrostatic transducer, comprising:
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opposing corrugated stators substantially parallel to each other, each stator having an operating surface facing the operating surface of an opposing stator;
an emitter diaphragm suspended between the opposing stators and spaced a sufficient distance from the operating surfaces of the stators to enable diaphragm oscillation in an emitter section of the diaphragm in response to an applied signal voltage without contacting the operating surfaces of the stators; and
wherein the diaphragm is configured with an orientation which provides greater directional stiffness along a longitudinal direction of the diaphragm and within the emitter section to enable the emitter diaphragm to operably oscillate in the absence of tension applied along the stiffness orientation. - View Dependent Claims (57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69)
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70. An electroacoustic transducer, including:
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at least one stator member having an operating surface for positioning adjacent an emitter diaphragm;
an emitter diaphragm suspended adjacent to and spaced a sufficient distance from the operating surface of the stator member to enable diaphragm oscillation in response to an applied signal voltage to permit diaphragm movement within at least one emitter section without contacting the operating surface of the stator member;
said diaphragm being configured with alternating peaks and valleys extending along a longitudinal dimension of the diaphragm, including an increased stiffness orientation which provides greater directional stiffness along the longitudinal direction, wherein the alternating peaks and valleys produce acoustic output; and
a securing structure, applied in transverse orientation with respect to the stiffness orientation at the diaphragm, having a diaphragm contacting portion which has a substantially non-planar configuration that corresponds to the alternating peaks and valleys of the diaphragm, to secure the diaphragm in a fixed position.
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Specification