Method and apparatus for recording data on and reading data from

Details Method and apparatus for recording data on and reading data from Method and apparatus for recording data on and reading data from

1979-06-25

1982-01-12

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

General processing of a digital signal

In specific code or form

G11B 509

Patent

active

043108601

ABSTRACT:
An incoming signal sequence coded in accordance with a NRZ-1 code is to be recorded on a magnetic tape after recoding into a Miller code. To eliminate DC components in some Miller sequences, the incoming data bits are examined in sets containing no more than four bits to determine whether sequences with DC components are present. If so, an NRZ coded sequence having no DC component is substituted for the corresponding bits at the output of the Miller coder. At the reproducing end, similar testing takes place to determine whether a substitute signal sequence is present. If such is detected, the NRZ coded signals which it replaced at the coding end are substituted for the corresponding signals in a Miller decoder.

REFERENCES:
patent: 3810111 (1974-05-01), Patel
patent: 3879342 (1975-04-01), Patel
patent: 4000512 (1976-12-01), Lau
patent: 4000513 (1976-12-01), Precourt
patent: 4017903 (1977-04-01), Chu
patent: 4027335 (1977-05-01), Miller

Affiliated with

Also associated with

Rating

Method and apparatus for recording data on and reading data from does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for recording data on and reading data from, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for recording data on and reading data from will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1543785