| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 381166000 | Having a fluid as a conducting element | 8 |
| 20100172520 | ASSEMBLING METHOD OF SPEAKER AND ELECTRONIC APPARATUS EMPLOYING THAT SPEAKER - A voice coil wound to have a loop having an inner side is fixed to a diaphragm vibrating in a vibration direction. A first magnet having a first pole surface is fixed to an upper case. A second magnet having a second pole surface is fixed to a lower case. A first magnetic fluid is attached to the first pole surface of the first magnet after fixing the first magnet to the upper case. The diaphragm is fixed to the upper case after fixing the voice coil to the diaphragm and after attaching the first magnetic fluid to the first pole surface of the first magnet, such that the first pole surface of the first magnet faces the inner side of the voice coil and that the first magnetic fluid is provided between the first pole surface of the first magnet and the voice coil and contacts the first pole surface and the voice coil. | 07-08-2010 |
| 20110311079 | METHOD AND STRUCTURE FOR INDUCING ACOUSTIC SIGNALS AND ATTENUATING ACOUSTIC SIGNALS - At least embodiment is directed to an earpiece comprising a housing; and a field responsive fluid, where the field responsive fluid is in the housing, where the housing is part of the earpiece, and where the earpiece is configured to vary a field to vary an acoustical property of the field responsive fluid. | 12-22-2011 |
| 20120039493 | TRANSDUCER DEVICES AND METHODS FOR HEARING - A device to transmit an audio signal to a user may comprise a mass, a piezoelectric transducer, and a support to support the mass and the piezoelectric transducer with the eardrum. The piezoelectric transducer can be configured to drive the support and the eardrum with a first force and the mass with a second force opposite the first force. The device may comprise circuitry configured to receive wireless power and wireless transmission of an audio signal, and the circuitry can be supported with the eardrum to drive the transducer in response to the audio signal, such that vibration between the circuitry and the transducer can be decreased. The transducer can be positioned away from the umbo of the ear to drive the eardrum, for example on the lateral process of the malleus. | 02-16-2012 |
| 20120039494 | Loudspeakers - The invention relates to a drive unit for a loudspeaker, and a loudspeaker including the same. The drive unit includes a magnet assembly which defines primary and secondary gaps with respect to which a voice coil assembly is movable and in which the same is mounted. The voice coil assembly includes a former which is located and suspended in the secondary gap by ferrofluid provided in said secondary gap, to locate the voice coil assembly without the need for a spider or other mechanical locating means to be provided. | 02-16-2012 |
| 20140348350 | STRUCTURES FOR DYNAMICALLY TUNED AUDIO IN A MEDIA DEVICE - Techniques associated with structures for dynamically tuned audio in a media device are described, including a housing, a driver mounted to the housing and configured to produce acoustic energy, a hybrid radiator mounted to the housing and formed at least in part using a material configured to change one or more properties in response to an application of an external stimulus, and a source configured to apply the external stimulus to the hybrid radiator. | 11-27-2014 |
| 20140348351 | STRUCTURES FOR DYNAMICALLY TUNED AUDIO IN A MEDIA DEVICE - Techniques associated with structures for dynamically tuned audio in a media device are described, including receiving data associated with an acoustic output, determining a target frequency response associated with an audio device, the audio device implemented with a hybrid radiator formed using a smart fluid or artificial muscle material, determining a value associated with a property of the smart fluid or artificial muscle material, calculating, using a dynamic tuning application, a magnitude of an external stimulus associated with the value, and sending a control signal to a source, the control signal configured to cause the source to apply the external stimulus, an application of the external stimulus of the determined magnitude configured to change the property of the smart fluid or artificial muscle material. | 11-27-2014 |
| 20160037243 | Liquid Resistant Acoustic Device - An acoustic port of acoustic device is covered with a mesh and/or other structure that resists entry of liquid and/or other materials into the acoustic device. Apertures of a housing that are separated by an umbrella section are coupled to the acoustic port such that the umbrella section may cover the acoustic port. In this way, when liquid enters one or more of the apertures, the umbrella section may direct the liquid away from the mesh such that pressure from the liquid upon the mesh may be reduced. As such, potential damage to the mesh and/or internal acoustic device components may be mitigated. In some implementations, the apertures may be covered with an additional mesh. Such additional mesh may further reduce the pressure of entering liquid on the mesh covering the acoustic port of the acoustic device. | 02-04-2016 |
| 20160192077 | METHOD AND STRUCTURE FOR INDUCING ACOUSTIC SIGNALS AND ATTENUATING ACOUSTIC SIGNALS - At least one embodiment is directed to an earpiece comprising a housing; and a field responsive fluid, where the field responsive fluid is in the housing, where the housing is part of the earpiece, and where the earpiece is configured to vary a field to vary an acoustical property of the field responsive fluid. | 06-30-2016 |
