Back to results
US 2008/0175428 A1Published application
Loudspeaker actuator
AssigneesSony Corporation, Sony Mobile Communications Inc.
InventorGunnar Klinghult
Life of this patent
Estimating the term…
Abstract
A loudspeaker system, and a method and device for actuating a loudspeaker, using a loudspeaker element connected to a memory metal part and provided in a portable electronic device; and a power source unit configured to supply power to the memory metal part, wherein, when power is supplied to the memory metal part, the memory metal part is configured to exert a force on the loudspeaker element to actuate it.
Claims23
A loudspeaker system, comprising:
- at least one flat loudspeaker element mechanically coupled to at least one memory metal part and provided in a portable electronic device;
- and
- at least one power source unit configured to supply power corresponding to sound to be generated to the at least one memory metal part,
- wherein, when power is supplied to the at least one memory metal part, the at least one memory metal part is configured to exert a force on the flat loudspeaker element to actuate an alternating motion of the loudspeaker element so that the loudspeaker element generates the corresponding sound.
1 more element
A method for actuating a flat loudspeaker element, comprising:
- receiving a signal corresponding to sound to be generated by the flat loudspeaker element,
- providing power to at least one memory metal part being mechanically connected to the flat loudspeaker element upon receipt of the signal, and
- actuating the flat loudspeaker element by means of the at least one memory metal part exerting a force on the flat loudspeaker element in response to the power being provided to the memory metal part such that an alternating motion of the loudspeaker element is actuated to generate the corresponding sound.
A device, comprising:
- means for actuating at least one flat loudspeaker element, the means for actuating including at least one memory metal part being mechanically coupled to the flat loudspeaker element.
Dependencies are inferred from the claim text.