公开(公告)号：WO1994011868A1

公开(公告)日：1994-05-26

申请号：PCT/US1993010639

申请日：1993-11-04

Applicant: FUTURE NETWORK, INC.

Inventor： FUTURE NETWORK, INC. ,  SCHWAB, Barry, H. ,  WASHINO, Kinya

IPC: G11B05/86

CPC classification number: G11B15/70 ,  G11B5/865 ,  G11B15/00 ,  G11B15/60

Abstract: In a high speed magnetic tape duplicating system, a single master tape (21) is wound around a transfer drum (7) rotatable about a fixed axis. Longitudinal sections of two copy tapes (31A and 31B) are preferably urged against different sections of the master tape (21) as it contacts the transfer drum (7) using an air clamp, and bias field magnetic transfer heads (6A and 6B) are used to carry out anhysteretic transfer from the master to the copy tapes. The transfer heads (6A and 6B), mounted on translatable deck plates (5A and 5B), may be retracted away from the transfer drum (7) along with the master and copy tapes to facilitate threading, rewinding, and automatic transfer drum cleaning with a plurality of rollers. The method of the invention includes steps whereby the master tape may be automatically threaded to accommodate both shuttle and bin-loop modes of operation and to detect damage to the master tape and halt further duplicating.

Abstract translation: 在高速磁带复制系统中，单个母带（21）缠绕在可围绕固定轴线旋转的转印鼓（7）周围。 两个复制带（31A和31B）的纵向部分优选地被压靠在主带（21）的不同部分上，因为它们使用空气夹接触转印鼓（7），而偏磁场磁转印头（6A和6B）是 用于进行从主机到复制磁带的不间断传输。 安装在可平移甲板（5A和5B）上的转印头（6A和6B）可以与主复印带一起缩回离开转印鼓（7），以方便螺纹，倒卷和自动转印滚筒清洗 多个辊。 本发明的方法包括以下步骤：母带可以自动地螺纹连接以适应穿梭和双回路操作模式，并且检测对母带的损坏并停止进一步的复制。