Abrégé

A W-shaped radiating surface for a transducer assembly is described. The radiating surface has a center portion and an outer portion. The center portion is disposed in the center of a voice coil former and has a first sloping region and a second sloping region that meet at a first angle. The outer portion is disposed outside the center of the voice coil former and has a third sloping region and a fourth sloping region, which meet at a second angle. The center portion couples with the outer portion at a third angle to form a radiating surface that has a W-shaped cross section.

Classes IPC  ?

• H04R 1/02 - BoîtiersMeublesMontages à l'intérieur de ceux-ci

Abrégé

A duct design and methods for designing ducts are described herein. The duct has a profile described by an equation that balances momentum of the fluid flowing through the duct with an adverse pressure gradient. The duct profile is configured to: (i) maintain the fluid's momentum to be greater than the adverse pressure gradient present at any location within the duct, such that no boundary layer separation occurs; and (ii) achieve a fluid exit momentum of approximately zero.

Classes IPC  ?

• H04R 25/04 - Appareils pour sourds comprenant des amplificateurs de poche

Abrégé

A support member for a voice coil former in an audio transducer is described. The support member comprises a bridge between the inner surface of the voice coil former and a radiating surface, such as a diaphragm or cone, which is disposed in the center of the voice coil former. The support member provides added rigidity to reduce wobble during operation of the transducer.

Classes IPC  ?

• H04R 7/20 - Dispositions pour monter ou pour tendre des membranes ou des cônes à la périphérie pour fixer une membrane ou un cône élastiquement à un support au moyen d'un matériau flexible, ressorts, fils ou cordes