Correlative tracking system with lock indicator

Details Correlative tracking system with lock indicator Correlative tracking system with lock indicator

1976-07-21

1978-07-11

Grimm, Siegfried H.

Oscillators

Automatic frequency stabilization using a phase or frequency...

Afc with logic elements

331 12, 331 25, 331 64, H03B 304

Patent

active

041005031

ABSTRACT:
Apparatus for indicating whether a correlation tracking system such as a phase-locked-loop has locked onto a periodic signal or not, utilizing a quadri-correlation circuit and digitalizers for the in-phase and the quadrature correlation signals, and logic circuitry for detecting the direction of transitions in the output state combinations of the digitalizers, and for adding the detector output signal rates for obtaining lock.

REFERENCES:
patent: 3801925 (1974-04-01), Parkyn
patent: 3909735 (1975-09-01), Anderson et al.
patent: 3956710 (1976-05-01), Seitz et al.

Affiliated with

Also associated with

Rating

Correlative tracking system with lock indicator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Correlative tracking system with lock indicator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Correlative tracking system with lock indicator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-265049