Title:
SPEAKER SYSTEM
Document Type and Number:
Japanese Patent JPH1056684
Kind Code:
A
Abstract:
To improve middle and high sound frequency characteristics and sound quality of middle and high sound frequency signals of a digital driven electromagnetic coupling speaker.
A primary coil 24 to which a current in response to an input voice signal is supplied is provided in the vicinity of an air gap GP in a magnetic circuit. A secondary coil unit 25 consisting of a short-circuit coil in which a current in response to the current flowing through the primary coil 24 is induced and to which a main diaphragm 29 is fitted is provided in the air gap GP, A sub diaphragm 26 is formed to the secondary coil unit 25 as an integrated component. The primary coil 24 is driven by the digital voice signal.
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Inventors:
FUJIHIRA MASAO
KISHIGAMI JUN
MURAGUCHI TAKAHIRO
KISHIGAMI JUN
MURAGUCHI TAKAHIRO
Application Number:
JP35404696A
Publication Date:
February 24, 1998
Filing Date:
December 18, 1996
Export Citation:
Assignee:
SONY CORP
International Classes:
H04R9/02; H04R3/00; H04R7/02; H04R9/04; H04S5/02; (IPC1-7): H04R3/00; H04R7/02; H04R9/02; H04R9/04; H04S5/02
Attorney, Agent or Firm:
Masami Sato