79179720
Dec 3, 2015
Nov 22, 2016
Acoustic sound masking systems comprised of controllers, loud speakers and amplifiers for "active" sound masking which emit audio signals at various frequencies to control sound, provide acoustic privacy, and add ambient baseline sound; loud speakers; amplifiers; digital sound equalizers; computer operating software used to control component parts of acoustic and sound masking systems including downloadable mobile applications and web-based interfaces; computer hardware; radio communications apparatus, namely radio transmitters and receivers used to send and receive data wirelessly via local area networks, cellular networks, wireless sensor networks and other wireless communication networks
Electrical and Scientific Apparatus