| 摘要 |
A method of, and an apparatus for, positioning a record/playback head assembly in a transverse reference position on one edge of a multitrack magnetic tape having no track identification data or other positioning patterns prerecorded thereon. A stream of transverse head positioning data, typically representative of serial numbers 1-255, is first written by the record/playback head assembly longitudinally on the tap in a selected transverse position intermediate the opposite edges of the tape. The data are subsequently read and checked for errors. If the thus detected errors are less than a predetermined number, the record/playback head assembly is moved a unit distance toward one tape edge. A similar cycle of operations is repeated until errors are found in the read stream of transverse head positioning data to the predetermined number or more.
|
