Multiple Period Minor Loops for Contiguous Disk Devices
Original Publication Date: 1981-Apr-01
Included in the Prior Art Database: 2005-Feb-11
A contiguous disk (CD) bubble device has a minor loop track with a center portion having a 4 mu period affixed to two end portions having an 8 mu period. As shown in the drawing, the CD device 10 has a plurality of minor loops 12. The minor loops 12 are asymmetric with end portions 14 having an 8 mu period to increase the operating margins. The center portion 16 has a 4 mu period for increased storage density.