| 摘要 |
<p>A magnetic head assembly having a read and write magnetic transducing assembly (390) with a gap (406) for recording a track of data having a first width on a moving magnetic media (160) and an erase magnetic transducing assembly (392) located adjacent said read and write magnetic transducing assembly (390). The erase magnetic transducing assembly includes a pair of erase cores (394, 396) each having two core portions (412, 414) which each terminate in end sections positioned with one end section of each core portion adjacent each other to define an erase gap (426) and with the other end sections of each core portion terminating in end edges which are spaced from each other to define an opening therebetween. The pair of erase cores (394, 396) are positioned in spaced, substantially parallel relationship to each other with a predetermined distance therebetween which is less than said first width. The erase gaps (426) are located on each side of the recording gap to erase a portion of the edge of each recorded track of data having a first width to produce a recorded track of data on a said magnetic media having a track width substantially equal to said predetermined distance. An erase coil (424) encloses two spaced parallel aligned other end sections of one core portions (414,416) of each erase core (394,396) with the end edges thereof extending slightly beyond the erase coil (424). A back bar (420) having a first end (430) and a second end (432), is positioned across the opening with said first end (430) contiguous each of said end edges of the two spaced parallel aligned other end sections (414, 416). The second end (432) is contiguous the other two spaced parallel aligned other end sections of the other core portion of each erase core to form a closed low reluctance path.</p> |
