Patent ID: 8433090
Filing Date: 2013-04-30
Classification: H04R

Abstract:
1. A rounded magnet motor assembly as part of a ribbon microphone, the rounded magnet motor assembly comprising: a thin corrugated ribbon; a first bar magnet with a first rounded-edge, or a first cylindrical magnetized pole piece facing a first side of the thin corrugated ribbon; and a second bar magnet with a second rounded-edge, or a second cylindrical magnetized pole piece facing a second side of the thin corrugated ribbon, wherein the first rounded-edge, the second rounded-edge, the first cylindrical magnetized pole, or the second cylindrical magnetized pole is convex-shaped to diverge reflected sound waves from the first bar magnet, the second bar magnet, the first cylindrical magnetized pole, or the second cylindrical magnetized pole to enable the thin corrugated ribbon to capture sound emanating from a source of sound with only minimal interferences from the reflected sound waves.