H - Electricity – 04 – R
Patent
H - Electricity
04
R
349/73
H04R 9/00 (2006.01) H04R 9/04 (2006.01)
Patent
CA 1128194
ABSTRACT OF THE DISCLOSURE A flat type electro-acoustic transducer such as a ribbon type loudspeaker has a magnetic circuit comprising a pair of air gaps and a diaphragm having a spiral coil disposed in the air gaps. In this case, the magnetic flux in the air gaps is slantly across the diaphragm .
327805
Gowling Lafleur Henderson Llp
Sony Corporation
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