Title: Ceramic type loudspeaker
Application Number: 200580018903 Application Date: 2005.10.21
Publication Number: 1965607 Publication Date: 2007.05.16
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H04R1/02;H04R17/00
Applicant(s) Name: Hakuju Inst For Health Science Address:
Inventor(s) Name: Matsufuji Taiji;Kato Harumitsu
Attorney & Agent: huangjian feng
Abstract:
    An object of the invention is provide a ceramic type loudspeaker which can place a loudspeaker at an arbitrary place without deteriorating the indoor decoration and without being limited by an environmental condition. The ceramic type loudspeaker is drived by a drive device outputting an audio signal. The loudspeaker includes: a loudspeaker driver in which a secondary side coil of a first transformer to which an audio signal is inputted from the drive device is electrically connected in series to a primary side coil of a second transformer; a series/parallel circuit unit including a parallel connection of a plurality of series circuits in which first and second ceramic oscillators and third and fourth ceramic oscillators driven by the audio signal from the secondary side coil of the second transformer of the loudspeaker driver (50) are connected in series. Morever, the loudspeaker adjusts impedance matching between the drive device and the series/parallel circuit unit.
Time: 8
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