ISOLATION OF AUDIO TRANSDUCER

摘要

A head-mounted wearable device assembly is provided that includes a bone conduction transducer (BCT) and an elastomeric isolation member that provides acoustic isolation between the BCT and a housing of the head-mounted wearable device assembly. The elastomeric isolation member may be a polyurethane material having a hardness (durometer) on the order of 60 A. The material arrangement and durometer may be chosen to provide a frequency response and/or acoustic leakage within a predetermined range, which results in high quality sound reproduction for the wearer. The elastomeric isolation member may be secured to an interior portion of the housing by a pair of mounting posts. The elastomeric isolation member physically and acoustically separates the BCT from the interior of the housing and other components therein.

主权项

1. A wearable device assembly, comprising:
a head retention structure including a center support, a first side arm extending from the center frame support on a first side thereof, and a second side arm extending from the center support on a second side thereof, the second side arm including an auxiliary housing having an interior member, the head retention structure configured to be worn on the head of a user; a bone conduction transducer at least partly received within the auxiliary housing, the bone conduction transducer configured to produce sound and to impart the sound to the user's head; and an elastomeric isolation member disposed between the interior member of the auxiliary housing and the bone conduction transducer, the elastomeric isolation member being configured to provide acoustic isolation of the bone conduction transducer from the auxiliary housing; wherein the elastomeric isolation member includes a base member and a lip member extending from the base member, the base member being disposed between the sound generation device and the interior member, and the lip member being configured to provide isolation of the contact member from the auxiliary housing.