Transparent synchronization of multiple channel data

Details Transparent synchronization of multiple channel data Transparent synchronization of multiple channel data

1985-12-13

1988-03-15

Cardillo, Raymond F.

Dynamic magnetic information storage or retrieval

Electronically correcting phasing errors between related...

360 51, G11B 2020

Patent

active

047316764

ABSTRACT:
In a multi-channel apparatus, a first plurality of N channels support user data and associated error correction and a second plurality of channels each contain a unique p-bit symbol followed by N consecutive M-bit samples of each of the N data channels. The receiver or retriever apparatus regenerates a system clock from all channels and examines the respective bit streams to score each bit phase as a match or a non-match of the sample in the synch channel with each M bit sample of the respective N data streams, and for each such N channels a counter corresponding to the then current phase is incremented or decremented. Relative skew for the N channels is derived from the addresses of the first counter to overflow for each of the N channels.

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patent: 4453260 (1984-06-01), Inagawa et al.
patent: 4524448 (1985-06-01), Hullweger
patent: 4633486 (1986-12-01), Berlekamp et al.

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