STEREOPHONIC SOUND SYSTEMS

Brand	Owner (click to sort)	Address	Description
LOUDSPEAKER	BSI, Inc.	5812 Yadkin Rd. Fayettesville NC 28303	Stereophonic Sound Systems, Comprising Loudspeakers, Speaker Enclosures, Grill Baffles, Speaker Terminals, and Circuit Breakers;No claim is made to the exclusive right to use the word Loudspeaker, apart from the mark as shown.;The drawing is lined for the colors red and blue.;
SEL	CAPETRONIC INT'L. CORP.	110 E. 59TH ST. NEW YORK, N.Y. 10022 NEW YORK NY 10022	Stereophonic Sound Systems, Comprising Loudspeakers and Turntables;
	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.