Recording noise reduction

申请公布号：

US2004224186(A1)

申请号：

US20040860686

申请日期：

2004.06.03

申请公布日期：

2004.11.11

申请人：

ROESLER ALEXANDER;YIP YUNG

发明人：

ROESLER ALEXANDER;YIP YUNG

分类号：

G11B5/64;G11B5/73;(IPC1-7):G11B5/127

主分类号：

G11B5/64

摘要：

A magnetic recording medium includes a highly permeable magnetic layer proximal to a recording layer. During recording, the permeable magnetic layer modifies the recording field from a recording head to produce consistently shaped recording transitions with a significant perpendicular component. The transitions are consistently shaped even though the distance between the recording head and the surface of the medium may change. Transitions so formed result in a reduction of noise from the medium surface roughness. The permeable magnetic layer further reduces noise caused by stray dipole fields.