Variable phase shifter

Details Variable phase shifter Variable phase shifter

1976-12-07

1978-06-13

Heyman, John S.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

328 55, 328155, 324 83D, H03K 513

Patent

active

040951863

ABSTRACT:
A variable phase shifter and comparator useable, for example, in a scalloping suppression system within a V.H.F. Omni Range (VOR) aircraft bearing determining system. The digital phase shifter-comparator network is employed to cause a phase of the reference signal to follow a phase of the variable phase signal. The phase shifter is comprised of two counters and the phase comparator is comprised of a bistable multivibrator. The delayed reference signal is the output of the system, and an analog rate controller is employed to limit the rate at which the reference signal can follow the variable phase signal.

REFERENCES:
patent: 3271688 (1966-09-01), Gschwind et al.
patent: 3312903 (1967-04-01), Webb
patent: 3328688 (1967-06-01), Brooks
patent: 3500214 (1970-03-01), Broadhead et al.
patent: 3588710 (1971-06-01), Masters
patent: 3600690 (1971-08-01), White
patent: 3663956 (1972-05-01), Purdy et al.
patent: 3728635 (1973-04-01), Eisenberg
patent: 3833854 (1974-09-01), Schonover
patent: 3889186 (1975-06-01), Larson

Affiliated with

Also associated with

Rating

Variable phase shifter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Variable phase shifter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable phase shifter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-11806