MAGNETIC DISTRIBUTED MODE ACTUATORS AND DISTRIBUTED MODE LOUDSPEAKERS HAVING THE SAME
First Claim
1. A distributed mode loudspeaker, comprising:
- a flat panel extending in a plane;
a rigid, elongate member extended along a direction parallel to the plane, the member being mechanically coupled to a face of the flat panel at a point, the member extending beyond the point to an end of the member free to vibrate in a direction perpendicular to the plane;
a magnet and an electrically-conducting coil, wherein either the magnet or the electrically-conducting coil is mechanically coupled to the member and the magnet and electrically-conducting coil are arranged relative to one another so that, when the electrically-conducting coil is energized, an interaction between a magnetic field of the magnet and a magnetic field from the electrically-conducting coil applies a force sufficient to displace the member in the direction perpendicular to the plane; and
an electronic control module electrically coupled to the electrically-conducting coil and programmed to energize the coil to vibrate the member at frequencies and amplitudes sufficient to produce an audio response from the flat panel.
3 Assignments
0 Petitions
Accused Products
Abstract
A distributed mode actuator (DMA) includes a flat panel extending in a plane and a rigid, elongate member extended parallel to the plane. The member is mechanically coupled to a face of the flat panel at a point. An end of the member is free to vibrate in a direction perpendicular to the plane. The DMA also includes a magnet and an electrically-conducting coil. Either the magnet or the coil is mechanically coupled to the member. When the coil is energized, an interaction between a magnetic field of the magnet and a magnetic field from the coil applies a force sufficient to displace the member in the direction perpendicular to the plane. The DMA further includes an electronic control module electrically coupled to the coil and programmed to energize the coil to vibrate the member to produce an audio response from the flat panel.
0 Citations
17 Claims
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1. A distributed mode loudspeaker, comprising:
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a flat panel extending in a plane; a rigid, elongate member extended along a direction parallel to the plane, the member being mechanically coupled to a face of the flat panel at a point, the member extending beyond the point to an end of the member free to vibrate in a direction perpendicular to the plane; a magnet and an electrically-conducting coil, wherein either the magnet or the electrically-conducting coil is mechanically coupled to the member and the magnet and electrically-conducting coil are arranged relative to one another so that, when the electrically-conducting coil is energized, an interaction between a magnetic field of the magnet and a magnetic field from the electrically-conducting coil applies a force sufficient to displace the member in the direction perpendicular to the plane; and an electronic control module electrically coupled to the electrically-conducting coil and programmed to energize the coil to vibrate the member at frequencies and amplitudes sufficient to produce an audio response from the flat panel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A mobile device, comprising:
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a housing; a display panel mounted in the housing; a flat panel extending in a plane, wherein the flat panel comprises the display panel; a rigid, elongate member extended along a direction parallel to the plane, the member being mechanically coupled to a face of the flat panel at a point, the member extending beyond the point to an end of the member free to vibrate in a direction perpendicular to the plane; a magnet and an electrically-conducting coil, wherein either the magnet or the electrically-conducting coil is mechanically coupled to the member and the magnet and electrically-conducting coil are arranged relative to one another so that, when the electrically-conducting coil is energized, an interaction between a magnetic field of the magnet and a magnetic field from the electrically-conducting coil applies a force sufficient to displace the member in the direction perpendicular to the plane; and an electronic control module electrically coupled to the electrically-conducting coil and programmed to energize the coil to vibrate the member at frequencies and amplitudes sufficient to produce an audio response from the flat panel. - View Dependent Claims (15)
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16. A wearable device comprising:
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a housing; a display panel mounted in the housing; a flat panel extending in a plane, wherein the flat panel comprises the display panel; a rigid, elongate member extended along a direction parallel to the plane, the member being mechanically coupled to a face of the flat panel at a point, the member extending beyond the point to an end of the member free to vibrate in a direction perpendicular to the plane; a magnet and an electrically-conducting coil, wherein either the magnet or the electrically-conducting coil is mechanically coupled to the member and the magnet and electrically-conducting coil are arranged relative to one another so that, when the electrically-conducting coil is energized, an interaction between a magnetic field of the magnet and a magnetic field from the electrically-conducting coil applies a force sufficient to displace the member in the direction perpendicular to the plane; and an electronic control module electrically coupled to the electrically-conducting coil and programmed to energize the coil to vibrate the member at frequencies and amplitudes sufficient to produce an audio response from the flat panel. - View Dependent Claims (17)
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Specification