Write splicing for helical scan recorder

Details Write splicing for helical scan recorder Write splicing for helical scan recorder

1997-03-24

1999-09-14

Psitos, Aristotelis M.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the record

360 71, G11B 1520

Patent

active

059531770

ABSTRACT:
Write splicing for a helical scan tape drive (30) involves, upon occurrence of a predetermined condition such as a buffer low condition, recording an indication of a tape transport transition (ITTT) on tape (31) and then recording dummy helical stripes (DSd1-DSdn) having deviant form as the magnetic tape is decelerated to a stop. After the predetermined condition is overcome, further deviant, dummy stripes (DSa1-DSan) are recorded as the tape is accelerated back to nominal tape transport speed. At the nominal tape transport speed, non-deviant stripes (S2) containing user data are again recorded on tape. A distance separating a first set of the nominal tape transport speed) is an integer multiple of the track pitch (P) of a non-deviant stripe. The write splice is thus performed without reversing the direction of tape transport.

REFERENCES:
patent: 4970612 (1990-11-01), Renders et al.
patent: 5050018 (1991-09-01), Georgis et al.
patent: 5349481 (1994-09-01), Kauffman et al.
patent: 5535068 (1996-07-01), Hughes
patent: 5602694 (1997-02-01), Miles et al.
patent: 5633764 (1997-05-01), Ohta
patent: 5781688 (1998-07-01), Seong

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