H - Electricity – 04 – R
Patent
H - Electricity
04
R
H04R 9/06 (2006.01) H04R 7/04 (2006.01)
Patent
CA 2407160
An improved flat panel sound radiator assembly is provided for reproducing high quality sound at volume levels substantially higher than existing flat panel sound radiator systems. The assembly includes a flat panel radiator having a core sandwiched between facing skins. The core, which preferably is a honeycomb core, and the skins are made of materials that result in a substantially enhanced signal-to- noise ratio and enhanced bass response when reproducing sound. The flat panel radiator is disposed within a frame and the peripheral edges of the radiator are movably coupled to the frame with a compliant surround. An exciter, which may be a traditional magnet structure, is mounted on and supported by a bridge structure spaced from the inside face of the radiator and is coupled to the radiator only through a voice coil assembly. In use, the radiator produces sound through distributed mode reproduction below a sound level threshold.. However, when large vibrations are imparted to the radiator corresponding to high volume level or deep bass sounds, the compliant surround accommodates pistonic motion of the entire radiator panel to produce these sounds in a substantially pistonic mode.
Go Carlos
Klasco Michael
Tobiano Pablo
Armstrong World Industries Inc.
Gowling Lafleur Henderson Llp
LandOfFree
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