59results about "Transducer combinations" patented technology

A hearing aid includes a sound input device, and a speaker, wherein the speaker includes a compartment with magnet suspended in a fluid containing magnetic particles and wherein a coil wrapped around the compartment or in close proximity thereto excites the magnet to vibrate causing pressure waves to vibrate a diaphragm proximal to the magnet.

At least one exemplary embodiment is directed to an earphone having a first and second tab that are configured to be engaged by fingers, where when fingers squeeze the tabs together pressure on a reservoir is reduced so that a medium flows from an expandable tip reducing the size of the expandable tip.

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.

An external ear canal pressure regulation device including a fluid flow generator and an earpiece having a first axial earpiece conduit fluidicly coupled to the fluid flow generator, whereby the earpiece has a compliant earpiece external surface configured to sealably engage an external ear canal as a barrier between an external ear canal pressure and an ambient pressure.

A highly compact loudspeaker system having a spherical housing produces time and phase coherent sound waves in an omnipresent manner throughout a spatial listening environment. Within is a relatively low frequency sound driver and a relatively high frequency sound driver. The spherical housing has upper and lower hemispherical halves. The upper half is hollow and has holes through its surface over most of its surface. The lower half forms a sound compression propagation vacuum chamber for the low frequency driver. Mounted within the lower half is a crossover network conventionally connected to the sound drivers. Acoustic foam lines the interior wall surface of the lower half. The low frequency sound driver is mounted inverted, into the open end of the lower half, and then sealed air tight, at a lowered atmospheric pressure, while the high frequency sound driver is mounted upwardly, affixed to the backside of the low frequency driver.

A method of optimizing a parametric emitter system having a pot core transformer coupled between an amplifier and an emitter, the method comprising: selecting a number of turns required in a primary winding of the pot core transformer to achieve an optimal level of load impedance experienced by the amplifier; and selecting a number of turns required in a secondary winding of the pot core transformer to achieve electrical resonance between the secondary winding and the emitter.

A headgear system enhanced for generating sound has at least one speaker apparatus connected to or integrated into the structure of the headgear system, the speaker apparatus including a magnet suspended in a magnetic fluid, and at least one resonator connected to the at least one speaker apparatus. The system is characterized in that excitation of the magnet produces vibration translated to the resonator to generate the sound.

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.

The invention provides systems and methods for providing hearing aid. An open ear canal hearing aid may be provided in accordance with an embodiment of the invention. The hearing aid may include a part that contains electronic components, a passive amplifier, and a securing mechanism. The securing mechanism may include bristles or balloons. The securing mechanism may have various configurations and be adjustable. In some embodiments, the hearing aid may transmit sound via bone conduction and air conduction.

A securing mechanism comprising a plurality of outwardly projecting members having a plurality of contact points that are configured to contact a surface of an opening when disposed on a space access device that is inserted in the opening, the securing mechanism being configured to apply a pressure to a contact surface within the opening less than approximately 10000 kPa.

A thermoacoustic device includes at least one first electrode, at least one second electrode, a thermoacoustic element, a base and a plurality of fins. The at least one second electrode is spaced from the at least one first electrode. The thermoacoustic element is electrically connected with the at least one first electrode and the at least one second electrode. The base supports the thermoacoustic element and the at least one first electrode and the at least one second electrode. The fins are in thermal engagement with the base.

Securing mechanisms for space access devices, such as an audio signal transmitting device, include a plurality of outwardly projecting members that are configured to transition from a relaxed state to a securing state when the space access device is inserted into an internal space or opening that has an inside diameter smaller than an outside diameter of the outwardly projecting members in the relaxed state. The outwardly projecting members securely engage a surface of the internal space and conform to the shape and size of the internal space. A sound blocking portion can be provided to substantially prevent air / sound flow past the sound blocking portion of the securing mechanism.

An improved electrically conductive membrane pump / transducer. The electrically conductive pump / transducer includes an array of electrically conductive membrane pumps that combine to generate a desired sound by moving a membrane (such as a membrane of PDMS), a piston, and / or by the use of pressurized airflow in the absence of such a membrane or piston. The electrically conductive membranes in the array can be, for example, graphene-polymer membranes. The electrically conductive pump can include mid-range, tweeter, and sub-woofer speakers.