Frequency synthesizing circuit

Details Frequency synthesizing circuit Frequency synthesizing circuit

1986-01-30

1987-06-02

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

328111, 328155, 307265, 307267, 307234, 455165, 331 1A, H03B 1900, H03K 3017

Patent

active

046707182

ABSTRACT:
In a frequency synthesizing circuit the deviation of the frequency of an oscillator signal which is transmitted (at 7) by a measuring gate (79) from a desired frequency (output 47) is converted into a control signal (at 3) for the oscillator (11). In order to prevent the occurrence of an average frequency-deviation due to a continuous change of the phase relationship between a test pulse (m) controlling the measuring gate (79) and the oscillator signal, an additional pulse (output 83 or 85) is added (via 81) to the output signal of the measuring gate (79). This additional pulse must occur contiguous to the test pulse. (FIG. 1).

REFERENCES:
patent: 2980858 (1961-04-01), Grondin et al.
patent: 3889186 (1975-05-01), Larson
patent: 4392253 (1983-06-01), Yamada et al.
patent: 4533880 (1985-08-01), Geurts
"SAB 2024 Tuning Circuit for Video Carrier Frequencies", Valvo Entwicklungsmitteilungen, Nov. 1977, pp. 33-35.

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