Patent ID: 6950526
Filing Date: 2005-09-27
Classification: G10K,H04K

Abstract:
1. A speaker system for masking sound, comprising a support platform for supporting at least one speaker within a ceiling plenum, a backbox supported on the support platform within the ceiling plenum, the back box having a back wall with a grille formed therein, at least one speaker supported above the support platform in an upwardly facing position beneath and facing the grille in the back wall of the backbox, to thereby project masking sound upwardly, so that a portion of the masking sound will pass upwardly through the grille into the ceiling plenum and be muffled, and a portion of the masking sound will bounce off the grille and an interior of the backbox within which the system is supported and then downwardly, so as to be attenuated before reaching the ears of a person within hearing range of the speaker system and to thereby mask other sounds within hearing of the person wherein the at least one speaker is at least two speakers, one of said speakers being a masking speaker and facing upwardly and the other of said speakers being a paging speaker and facing downwardly, for providing paging capability simultaneously with the masking function of the speaker system.