Dynamic magnetic information storage or retrieval – Manual input recording
Patent
1986-01-06
1988-06-21
Faber, Alan
Dynamic magnetic information storage or retrieval
Manual input recording
360 64, 360 371, 360 331, 358335, 358310, 358319, H04N 592, H04N 593
Patent
active
047528397
ABSTRACT:
Video reproduction apparatus records a field of a high resolution time-division-multiplex (TDM) video signal on first and second adjacent tracks on a magnetic tape. A head switch signal is included within the TDM video signal recorded on the tape in order to minimize skew errors which may occur in mid-field when switching between video signals sequentially played back from the first and second tracks. Each track has recorded thereon a plurality of horizontal lines of color video signals in a time-divisional-multiplex format including a compressed horizontal sync signal and compressed video component signals arranged in time sequential order. The compressed horizontal sync signal is deleted in a designated horizontal line signal at the end of the upper half of the field recorded on the first track such that the deleted horizontal sync signal constitutes a head switch signal. During playback, a head switch detecting circuit detects the deleted compressed horizontal sync signal in the designated line of the upper half field signal to effect a switch during the horizontal sync interval between the signals played back from the first and second tracks.
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Eastman Kodak Company
Faber Alan
Noval William F.
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