Ear canal ear bud sound system

摘要

An earbud sound system for a small speaker system having at least one earbud with a speaker and having, an earbud housing body defining a hollow interior a a circuit board within the housing body and having a signal input connection and a ground connection, and a speaker output connection and a speaker return connection; a bifilar coil unit having first and second coils wound in a bifilar manner, mounted on the circuit board within the housing body, and there being two first coil connections, and two second coil connections on the circuit board, for supporting the bifilar coil unit in a secure manner on the circuit board.

主权项

1. An earbud sound system for a small speaker system having a head set with at least one earbud with a speaker and characterised by;
an earbud housing body defining a hollow interior; a circuit board within said housing body and having a signal cable with a signal input and a signal ground portion; a bifilar coil unit comprising a supply coil and a return coil wound in a bifilar manner, mounted on said circuit board; two supply coil connections and two return coil connections on said circuit board, for supporting the bifilar coil unit in a secure manner on said circuit board by securing said bifilar coil unit to respective said supply and return coil connections on said circuit board; conductors in said circuit board connecting said supply coil connections and return coil connections to respective signal input and signal ground portions of said signal cable.