| 摘要 |
A magnetic recording head having a read-write gap and an erase gap adjacent a common core. The read-write gap is of a predetermined width equal to or less than the width of the common core. Within the common core, in the surface adjacent the erase gap, there is a notch of predetermined width less than the predetermined width of the read-write gap. The notch is of sufficient depth to minimize the erase function of that portion of the erase gap opposite thereto. In operation, the initial width of the magnetically recorded information, as determined by the width of the read-write gap, is cropped to the predetermined width of the notch during erasure. Accurately defined tracks of extremely narrow width may be attained with this recording head thereby permitting an increase in the number of tracks recorded per unit with of the magnetic storage medium.
|
