Delay line oscillator

Details Delay line oscillator Delay line oscillator

1980-06-24

1982-08-10

Witkowski, Stanley J.

Music

Instruments

84 125, 84DIG4, 331111, 331177R, G10H 1043

Patent

active

043432190

ABSTRACT:
A two-phase, period-proportional voltage-controlled oscillator circuit is provided for clocking an analog delay line which can be used, for example, in an electronic musical instrument. The voltage-controlled oscillator circuit provides two clock output signals of opposite phase and having a period directly proportional to the control voltage, i.e., the frequency of the two clock signals is inversely proportional to the control voltage. Since the delay provided by the analog delay line is directly proportional to the period of the clock signals, the delay is directly proportional to the control voltage thereby eliminating a source of distortion in a delay modulation system.

REFERENCES:
patent: 3833752 (1974-09-01), van der Kooij
patent: 3866505 (1975-02-01), Adachi
patent: 4031795 (1977-06-01), Bunger
patent: 4038898 (1977-08-01), Kniepkamp et al.
patent: 4043243 (1977-08-01), Peterson
patent: 4072079 (1978-02-01), Sharp
patent: 4080861 (1978-03-01), Wholahan
patent: 4091342 (1978-05-01), Whitten
patent: 4096778 (1978-06-01), Dittmar
patent: 4105950 (1978-08-01), Dingwell
patent: 4144790 (1979-03-01), Suchoff

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