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EP0492142A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Driver system for an extended-travel bass loudspeaker

Assignee: Nokia Deutschland GmbH
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Filing: 1991-11-23
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Granted: —
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Expires: 2011-11-23
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Abstract

Abstract According to the invention, a drive system designed with extended travel for bass loudspeakers (10) is specified which prevents the voice coil (21) from impinging on the magnet bottom pot and the voice coil (21) from coming to rest on the top pole plate (12) even if the mounting elements are designed to be very soft. For this purpose, a further coil arrangement (22), to which the amplifier power is also applied, is arranged on the voice coil former (19). Since the current is designed to flow in the opposite direction in coil (21) and coil arrangement (22), the voice coil former (19) is actively decelerated as soon as one of the two winding areas (23; 24) plunges into the air gap (25). <IMAGE>

Inventors

  • 👤 Rüdiger Dipl.-Ing. Fleischer

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-04 19:08
CPC Classifications
H; H04; H04R; H04R9/00; H04R9/02; H04R9/04; H04R9/045; H04R9/025; H04R2209/00; H04R2209/041

Claims Analysis

Total Claims: 0
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