MAGNETIC RECORD AND REPRODUCE SYSTEM FOR DIGITAL DATA HAVING A NRZC FORMAT

摘要

Apparatus for recording and reproducing digital data on a magnetic medium is disclosed. The apparatus operates to convert data in a NRZC format to a NRZ-S format and then to a S phi M format for recordation. Reproduced signals are reconverted from the S phi M format to a NRZ-S format. The reproduced signals are then filtered and threshold detected to derive the original data in NRZC format.