Headwheel servo lock verification with stationary head

Details Headwheel servo lock verification with stationary head Headwheel servo lock verification with stationary head

1979-10-19

1981-04-21

Konick, Bernard

Dynamic magnetic information storage or retrieval

Monitoring or testing the progress of recording

360 75, 360 70, H04N 578, G11B 2736, G11B 2722

Patent

active

042636256

ABSTRACT:
In a helical-scan tape recorder, headwheel servo loop locking is verified by a stationary head located downstream from the headwheel at a transverse position relative to the tape path at which the vertical synchronizing or blanking signals occur in normal operation.

REFERENCES:
patent: 3225135 (1965-12-01), Osawa
patent: 3369082 (1968-02-01), Hibbard
patent: 3404223 (1968-10-01), Violette
patent: 3549797 (1970-12-01), Dann
patent: 4014040 (1977-03-01), Kornhaas

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