Music – Instruments
Patent
1979-02-01
1981-02-17
Witkowski, S. J.
Music
Instruments
84 103, 84464R, G10H 700
Patent
active
042507871
ABSTRACT:
A device for producing a plurality of musical tones comprises a programmed rectangular wave generator that produces a series of rectangular waves of the same amplitude for each tone. Each wave in each of the series of waves has a predetermined energy content and drives a speaker or other sound producing transducer such that the musical tone produced has the same aural qualities as that produced by a musical instrument. In the preferred embodiment the wave generator is a programmed integrated circuit microcomputer having a Read Only Memory in which are stored the sequence of notes of one or more musical compositions that are played under program control. The device is particularly adapted to produce bell tones having minimum harmonic distortion which, in combination with microminiature speakers and lights in bell shaped translucent housings and driven by the series of rectangular waves, becomes an attractive Christmas decoration that plays a number of traditional Christmas carols.
REFERENCES:
patent: 3889568 (1975-06-01), Amaya
patent: 3971283 (1976-07-01), Wayne, Jr.
patent: 3992973 (1976-11-01), Howell
patent: 4016540 (1977-04-01), Hyatt
patent: 4022097 (1977-05-01), Strangio
patent: 4058043 (1977-11-01), Shibahara
patent: 4060848 (1977-11-01), Hyatt
Heathkit Continuing Education Individual Learning Program Microprocessors, Unit 7, Interfacing-Part 1, EE-3401, Heath Company Benton Harbor, Michigan, 49022, .COPYRGT.1977, pp. 10-71-82.
National Semiconductor COP420/COP421 Single-Chip N-Channel Microcontrollers, National Semiconductor Corporation, Jun. 1978.
Segan Marc H.
Swarztrauber Sayre A.
Calfax, Inc.
Witkowski S. J.
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