G - Physics – 10 – H
Patent
G - Physics
10
H
84/1.2
G10H 1/02 (2006.01) G10H 1/28 (2006.01) G10H 5/00 (2006.01)
Patent
CA 1096665
ABSTRACT OF THE DISCLOSURE An improved system for sounding notes in sequence is disclosed for use in an electronic organ having a set of tone signal genera- tors, a set of key operated switches actuated by the keys of a keyboard, an acoustic output system and a set of keying circuits connected between the output system and respective ones of the tone generator. The improved system uses a counter for producing in time sequential order a set of two component pairs of logic signals in response to the operation of one or more of the keyed operated switches. Each pair of logic signals corresponds to a different one of the tone generators. A decoder means for receiving and decoding pairs of logic signals is provided and causes the keying circuits to transmit a corresponding tone signal to the output system as a corresponding pair of logic signals is received for each tone generator, for which a corres- ponding key switch has been actuated. This system also uses control means for stopping the counting means for a predetermined time each time a tone signal is transmitted to the output system, so that a sequence of tones is sounded at equal time intervals. This system permits an improved digital arpeggio system for an electronic organ which, through digital logic techniques, permits a wide variety of modes of operation, including arpeggio mode, strum mode, normal mode, three different note patterns, as well four mode modifications including continuous mode, multi-tone mode, reverse mode and touch strip mode.
303728
Baldwin (d.h.) Company
Johnson Douglas S. Q.c.
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