Patent ID: 7183477

Claim:
A musical tone control system comprising: a plurality of motion detecting devices capable of being carried by a plurality of persons, said motion detecting devices detecting motions of the persons carrying the devices, and transmitting detected motion signals corresponding to the detected motions of the persons together with device identification signals; a receiver device that receives the detected motion signals transmitted from said plurality of motion detecting devices and corresponding to the detected motions of the persons; a memory provided on the receiver device side in which a predetermined extracting condition is stored; and a control device provided on the receiver device side, said control device determining whether the detected motion signals received by said receiver device satisfy the predetermined extracting condition, and extracting at least one detected motion signal determined to satisfy the predetermined extracting condition from the detected motion signals received by said receiver device, wherein, by interpreting said device identification signals, said control device discriminates from which of said plurality of motion detecting devices the at least one detected motion signal extracted from the detected motion signals received by said receiver device has been transmitted, and wherein said control device controls musical tones to be generated, based on an average value of each of the extracted at least one detected motion signal and results of the discrimination.