Patent ID: 11968512
Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 4:
5. A speaker device comprising:
a first transducer comprising:
a first magnetic circuit comprising a first magnet and a first yoke;
a first voice coil disposed in a first magnetic gap between the first magnet and the first yoke; and
a first diaphragm connected to the first voice coil;

a first amplifier electrically connected to the first voice coil;
a second transducer comprising:
a second magnetic circuit comprising a second magnet and a second yoke;
a second voice coil disposed in a second magnetic gap between the second magnet and the second yoke; and
a second diaphragm connected to the second voice coil;

a second amplifier electrically connected to the second voice coil; and
a magnetic plate coupled between the first yoke and the second yoke to couple magnetic flux between the first transducer and the second transducer.