BUILDING COMMUNICATION SOUND SYSTEMS

Brand	Owner	Address	Description
TRUECOM	ADT SERVICES AG	IP Law Department Freier Platz 10 Schaffhausen 8200 Switzerland	building communication and sound systems, comprising video signal distribution controller, intercoms, microphones, telephones, loud speakers, voice mail communication servers and computer hardware and software for controlling the system;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

A system for characterizing, synthesizing, and/or canceling out acoustic signals from inanimate and animate sound sources. Electromagnetic sensors monitor excitation sources in sound producing systems, such as animate sound sources such as the human voice, or from machines, musical instruments, and various other structures. Acoustical output from these sound producing systems is also monitored. From such information, a transfer function characterizing the sound producing system is generated. From the transfer function, acoustical output from the sound producing system may be synthesized or canceled. The systems disclosed enable accurate calculation of transfer functions relating specific excitations to specific acoustical outputs. Knowledge of such signals and functions can be used to effect various sound replication, sound source identification, and sound cancellation applications.