Electrical audio signal processing systems and devices – One-way audio signal program distribution – Public address system
Reexamination Certificate
2007-03-27
2007-03-27
Chin, Vivian (Department: 2615)
Electrical audio signal processing systems and devices
One-way audio signal program distribution
Public address system
C381S079000
Reexamination Certificate
active
10236926
ABSTRACT:
An apparatus and method for providing a centralized speaker system that allows multiple speakers connected to a central amplifier speaker line to be monitored and controlled from a central location via a master/slave protocol. The centralized speaker system comprises a central station for selectively communicating at least one of a command and an information signal to a destination device. A tone generator is adapted to communicate an activation tone to the destination device. An amplifier, which is colocated with the central station, is adapted to amplify the signals to the destination device.
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Nourse James D.
Youndt Keith R.
'Hubbell Incorporated
Bicks Mark S.
Chin Vivian
Goodman Alfred N.
Longanecker Stacey J.
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