Polyphonic doorbell chime system

Details Polyphonic doorbell chime system Polyphonic doorbell chime system

G - Physics

08

B

G08B 3/10 (2006.01) G10H 7/00 (2006.01)

Patent

CA 2640784

A door chime system includes a microcontroller having a polyphonic MIDI music processor and a data memory for storing MIDI format sound files. The microcontroller includes an input for accepting signals from door chime actuators or pushbuttons and an output representative of distinct MIDI sound files.

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