Browse Prior Art Database

Evaluating Relative Alignment of Diskette Drives

IP.com Disclosure Number: IPCOM000046580D
Original Publication Date: 1983-Aug-01
Included in the Prior Art Database: 2005-Feb-07

Publishing Venue

IBM

Related People

Authors:
Beebe, WE Yee, A [+details]

Abstract

Track alignment servoing is a feature not often found on low-end diskette units used with keyboard display word processing equipment. Without this feature, it is necessary that different diskette drives be in alignment for matching the need to run diskettes on different drives. By using the identification field portion in addition to the data field portion of a record in the test, the granularity of the measurement is increased as well as the value of the measured result. Separately using identification field and data field is accomplished by decoding the return status without involving a different recording technique. Program-based alignment procedures using pre-recorded tracks have been used in the diskette drive manufacturing facilities for many years.