×

Broadcast system for a facility

  • US 5,481,478 A
  • Filed: 06/03/1994
  • Issued: 01/02/1996
  • Est. Priority Date: 06/03/1994
  • Status: Expired due to Fees
First Claim
Patent Images

1. A broadcast system for a facility, said system including:

  • means for producing each of a plurality of broadcast signals including a program signal, a supervisory program signal and a supervisory alert signal;

    a supervision controller for said broadcast signals;

    power supply means having output terminals on which there appears a desired power supply for monitoring stations;

    means for combining said program signals with said power supply to form an output signal suitable for broadcast within said facility;

    bus means for distributing said output signal in said facility to each of a plurality of monitor stations; and

    said plurality of monitoring stations each including;

    (a) means connected to said bus means to recover broadcast signals and form a resident power supply for that monitor station only from said output signal,(b) a monitor coupled to a resident amplifier and powered by said resident power supply for responding to any of said plurality of recovered broadcast signals,(c) a resident controller for controlling said resident amplifier when receiving a program signal supplied to said monitor, and(d) a resident executive controller for overriding said resident controller and applying said supervisory alert signal and supervisory program signal to said resident amplifier.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×