Initial Adjustment Of Disk Surface Test Equipment
Original Publication Date: 1980-Jan-01
Included in the Prior Art Database: 2005-Feb-12
The surface analysis of a magnetic recording disk by recording a predetermined pattern of signals and detecting errors in playback of the signals is described in a previous article (*). That article also described how the threshold level of the error detector was initially adjusted by balancing the brightness of two light-emitting diodes.