Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1992-02-18
1993-11-30
Sikes, William L.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307516, 328133, 328134, H03K 526
Patent
active
052668517
ABSTRACT:
A phase difference signal generator responds to two input signals to generates two phase difference signals which rise at a time interval corresponding to the phase difference between the two input signals and fall at the same time. A lagging signal detector detects a lagging one of the two phase difference signals and a pulse generator responds to the detected output from the lagging signal detector to generate an appendage pulse of a width larger than a predetermined width. The appendage pulse is appended, by a pulse appending circuit, to each of the two phase difference signals to form an extend phase difference signal. A phase difference detector detects the difference between the two extended phase difference signals and outputs a low-frequency component of the difference as a voltage corresponding to the phase difference between the two input signals.
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P. Conway, "Take The Jitter Out of PLLs", Electronic Design, vol. 38, No. 6, pp. 106-107, Mar. 22, 1990, Hasbrouck Heights, N.Y.
Advantest Corporation
Ouellette Scott A.
Sikes William L.
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