G - Physics – 08 – B
Patent
G - Physics
08
B
84/1.1
G08B 3/00 (2006.01) B06B 1/02 (2006.01) G08B 3/10 (2006.01)
Patent
CA 1153224
MULTITONE SIGNALING DEVICE Abstract A compact and economical circuit for a multitone horn employing a microcomputer. The system also includes an audio amplifier, a speaker, a power supply, and start control means. The start control means includes a common lead and a plurality of start leads. Connecting the common lead to a predetermined one of the start leads will initiate a predetermined one of the plurality of available tones. A selected one of the start leads may have priority to terminate any pre-existing signal and initiate an alternate signal. At least one of the start leads, including the priority start lead, may be coupled to programming means whereby the signal activated may be pre- programmed to be any selected one of the plurality of available signals. The power supply includes a pulse generator for resetting the microcomputer in response to initial application of power. The available tones include both percussive and non-percussive tones and the total number of available tones may be greater than the number of start leads.
376007
Mccord Herbert W.
Podany Vaclav O.
Right Robert W.
Borden Ladner Gervais Llp
General Signal Corporation
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