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Diaphragms For Electromechanical Transducers
(AREA)
Abstract
Improved dynamic loudspeaker, characterized in that the range of reproducible frequencies is extended by the special configuration of the vibrating element, to which object the oscillating cone presents in its diametrical section zones of different curvature, arranged in the form of concentric continuous bands of progressively increasing radio from the center at the edges of the oscillating cone, resulting in an extension of the central horizontal zone of the response curve to the various frequencies of audible sounds. (Machine-translation by Google Translate, not legally binding)
Removable furniture designed to facilitate a pseudo-stereophonic sound through sound devices installed inside (Machine-translation by Google Translate, not legally binding)
An apparatus that engendes variable audible sounds according to the distance of a vehicle to an obstacle and that constitutes a measure of this last (Machine-translation by Google Translate, not legally binding)