Music – Instruments
Patent
1979-07-02
1980-12-23
Rubinson, Gene Z.
Music
Instruments
84 103, 84 124, G10H 102
Patent
active
042403189
ABSTRACT:
A musical instrument tone generator comprises a clock circuit including means for developing an interval code representing the number of musical intervals to be swept by a tone signal. An output clock signal is produced in response to the interval code for causing the swept tone signal to exhibit a rate of change varying exponentially with time such that a number of musical intervals are swept in a corresponding number of equal time intervals. Means are provided for suitably updating the output clock signal in response to the modification of an on-going frequency sweep in order to maintain the foregoing correspondence between the number of musical intervals swept and the time duration of the sweep. In another embodiment, the output clock signal is effective for operating the tone generator for developing a tone signal sweeping one or more musical intervals in an equal time interval.
REFERENCES:
patent: 3929053 (1975-12-01), Deutsch
patent: 4073209 (1978-02-01), Whittington et al.
patent: 4103581 (1978-08-01), Deutsch
patent: 4122743 (1978-10-01), Tomisawa et al.
patent: 4152966 (1979-05-01), Deutsch
patent: 4185530 (1980-01-01), Robinson et al.
patent: 4198892 (1980-04-01), Gross
Kail Jack
Kransdorf Ronald J.
Norlin Industries, Inc.
Rubinson Gene Z.
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