Arrangement for automatic track searching for oblique track reco

Details Arrangement for automatic track searching for oblique track reco Arrangement for automatic track searching for oblique track reco

1974-04-01

1976-03-09

Cardillo, Jr., Raymond F.

Dynamic magnetic information storage or retrieval

Record editing

360 72, 360 73, H04N 5795, G11B 1552, G11B 2722

Patent

active

039435628

ABSTRACT:
Apparatus is provided for automatic video track searching during the reproduction of still pictures from oblique magnetic video track recordings on a magnetic tape. The apparatus is adapted for use in a system including a rotating magnetic-head drum capable of generating position pulses. The apparatus provides for arbitrarily switching the tape-transport motor down to a slow speed and for a braking circuit to stop the tape-transport motor. A detecting circuit is provided to form a voltage envelope curve from signals generated by the video head or video heads, and a phase shifter for the position pulses compensates for phase errors in the machinery and circuitry. The apparatus also provides for the aforesaid switching upon a temporal coincidence between minima of a aforesaid envelope curve and the phase compensated position pulses. A sample and hold circuit scans the aforesaid envelope curve at times controlled by the phase compensated position pulses. The scanned signal is integrated and differentiated and, through a pulse shaper, operates upon the aforesaid switching means to bring the slow tape-transport motor motion to a complete stop.

REFERENCES:
patent: 3557320 (1971-01-01), Hopf

Affiliated with

Also associated with

Rating

Arrangement for automatic track searching for oblique track reco does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Arrangement for automatic track searching for oblique track reco, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Arrangement for automatic track searching for oblique track reco will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-837231