Helical scan system information signal recording/reproducing app

Details Helical scan system information signal recording/reproducing app Helical scan system information signal recording/reproducing app

1993-03-22

1995-01-03

Psitos, Aristotelis

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Synchronizing moving-head moving-record recorders

360 7313, 360 7716, G11B 2104

Patent

active

053791649

ABSTRACT:
A helical scanning type recording/reproducing apparatus provided with a dynamic tracking head which is moved in a direction perpendicular to a recording track on a magnetic tape and which is controlled by a movement controlling unit to trace the recording track accurately. The recording/reproducing apparatus includes a control phase data memory 10 for storing tape feed phase data, a head height data memory 6 for storing head height data during tracing by the dynamic tracking head and a control signal detection circuit 4 for detecting whether or not the control signals are being reproduced. When the control signals are not being reproduced, the head height position is controlled to be a predetermined head height position, based on data stored in the control phase data memory 10, at the same time that tracking control is performed based on the data stored in the head height memory 6 and the data corresponding to the current head height position.

REFERENCES:
patent: 5126894 (1992-06-01), Kawasaki
patent: 5247404 (1993-09-01), Takeda
patent: 5270884 (1993-12-01), Kim
Symposium Record, Broadcast Sessions 13, Jun. 1991, p. 1 and 62-74, D.M. Huckfield & Al. `A New generation 4:2:2 SVTR`.

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