Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1985-02-28
1986-12-30
Heyman, John S.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307529, 377 44, 377 51, 377 52, 331 1A, H03L 718
Patent
active
046331832
ABSTRACT:
A frequency synthesizer which has a constant resolution over an octave frequency range is disclosed. The frequency synthesizer has a presettable high speed counter, a low speed counter, an adjusting counter, and a count selector. The low speed counter provides a first output signal whose frequency is rapidly alternated between two closely-spaced frequencies so that the average frequency of the output signal is the desired frequency. The adjusting counter determines the period of time that each of the closely-spaced frequencies is present at the output. The count selector determines the frequency of each of the two closely-spaced frequencies. The frequency synthesizer also has a phase splitter and provides a second output signal which is also of the desired frequency but which is phase-shifted by ninety degrees from the first output signal.
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patent: 4546487 (1985-10-01), Dackow
Hayes Microcomputer Products, Inc.
Heyman John S.
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