A multi-track magnetic recording head for a helical-scan tape system

Abstract

In a helical-scan recording system, multi-channel data transfer requires many heads aligned precisely in a scanner. A single-tip multi-head greatly facilitates this alignment. The new multi-head, combined with an ETF (Embedded Thin Film) head reported previously, has much smaller magnetic cores than a conventional multi-head. This minimizes the crosstalk that is an inherent problem in the multi-head. Head-tape contact for gapto-gap distance up to 900 km has successfully achieved by adjusting the tip-radius and head protrusion.

Crosstalk Between Write Transducers

“…While writer crosstalk has been previously reported [1]- [3] in larger and merged pole head structures, this paper examines crosstalk experimentally in tightly pitched modern writers. A hypothesis that explains the underlying phenomenon is set forth.…”