×

Speaker apparatus

  • US 20050232450A1
  • Filed: 03/07/2005
  • Published: 10/20/2005
  • Est. Priority Date: 03/08/2004
  • Status: Active Grant
First Claim
Patent Images

1. A speaker apparatus comprising:

  • an oscillation unit for generating a sound;

    a drive unit having a voice coil and a magnetic driving circuit for providing a magnetic field to the voice coil to oscillate the oscillation unit;

    light-emitting devices mounted on specific positions; and

    an electromotive force generator for lighting the light-emitting devices including an induction coil and a magnetic lighting circuit, said magnetic lighting circuit being mounted separately from the magnetic driving circuit for providing a magnetic field to the induction coil, whereby owing to an oscillation of the oscillation unit, the induction coil of the electromotive force generator generates an electromotive force for lighting the light-emitting devices.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×