Period proportional two-phase voltage controlled oscillator
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United States of America Patent
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Aug 23, 1983
Issued Date -
N/A
app pub date -
Jun 19, 1981
filing date -
Jun 24, 1980
priority date (Note) -
Expired
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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.
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