Resumes
Resumes
Luminita Dragan
View pageLocation:
United States
Luminita Dragan Phones & Addresses
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7007 Hamlin Ave, Lincolnwood, IL 60712
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7007 Hamlin Ave #N, Lincolnwood, IL 60712
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4827 N Sheridan Rd #506, Chicago, IL 60640 (773) 907-8643
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459 W Briar Pl #503, Chicago, IL 60657
Publications
Us Patents
Loudspeaker And Microphone Based On The Principle Of "The Center Of Percussion"
View pageUS Patent:
20080085017, Apr 10, 2008
Filed:
Jan 10, 2006
Appl. No.:
11/328611
Inventors:
Andrei Ilies - Lincolnwood IL, US
Luminita Dragan - Lincolnwood IL, US
Luminita Dragan - Lincolnwood IL, US
International Classification:
H04R 25/00
US Classification:
381150
Abstract:
A transducer of electrical oscillations to mechanical oscillations or mechanical oscillations to electrical oscillations, mainly a loudspeaker or a microphone, having in general an elongated oscillating member attached by joints to a surrounding structure in areas of points or lines of specific dynamic balance, like one end, center of mass, center of equal rotational inertia, center of percussion about a certain axis of rotation. At least one actuator is mounted in the area of these balancing points or lines. In an alternative to the preferred embodiment of the invention, the oscillating member is built to incorporate at least one cavity filled with air or a fluid different from air or having a certain degree of vacuum in it. In an alternative to the preferred embodiment of the invention the transducer is placed in a position to favor the retention of a heat exchanging fluid, other than magnetic fluid, inside the actuator.The incorporation of a coil other than circular targets the reduction of coil inductance to increase the transducer's performance.A symmetrical constructed assembly brings about improved physical stability to voice coils.