Method and apparatus for recording and reading variable speed da

Details Method and apparatus for recording and reading variable speed da Method and apparatus for recording and reading variable speed da

1996-08-12

1998-07-21

Sniezek, Andrew L.

Dynamic magnetic information storage or retrieval

Recording for changing duration, frequency or redundant...

360 64, 360 7306, 386109, G11B 500

Patent

active

057842159

ABSTRACT:
A method and apparatus for recording and replaying variable speed data uses a rotating drum device. When information to be recorded is presented to the transfer rate of the information, be recorded is determined. If this information is not presented at a standard information transfer rate (N), it is converted to that standard rate. If the information not only is not at the standard rate N, but is outside a predetermined amount from that standard rate, the travel speed of the magnetic medium is slowed and the activation sequence of the magnetic recording head is altered. In the case where the information to be recorded is at a rate outside of the predetermined rate, the magnetic medium travel speed is reduced from the standard speed (L/T) in relation to the information transfer rate of the information to be recorded. If the tape speed is reduced to L/XT, then the activation sequence is every Xth head. During replay, the information is read from the medium at the standard information transfer rate and the medium travel speed and the head activation sequence are altered accordingly, if necessary. The information is then converted to the original information transfer rate by digital circuitry.

REFERENCES:
patent: 4594621 (1986-06-01), Noguchi et al.
patent: 4837641 (1989-06-01), Mori et al.
patent: 5045954 (1991-09-01), Oishi et al.
patent: 5136391 (1992-08-01), Minami

Affiliated with

Also associated with

Rating

Method and apparatus for recording and reading variable speed da 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 and reading variable speed da, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for recording and reading variable speed da will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1652441