Combining information from parallel servo channels

Details Combining information from parallel servo channels Combining information from parallel servo channels

2011-07-19

2011-07-19

Negrón, Daniell L (Department: 2627)

Dynamic magnetic information storage or retrieval

Monitoring or testing the progress of recording

C360S077140, C360S046000

Reexamination Certificate

active

07982988

ABSTRACT:
A weighted combining scheme exploits information from two servo channels operating in parallel. A timing-based servo module servo module comprises two servo channels coupled respectively to receive two digital servo signals read from a data tape. Both channels have outputs for an unweighted metric and for a measure of the channel reliability. A weight computation module provides first and second weight signals using the measures of channel reliability from the servo channels. A first multiplying node receives a first unweighted metric and a first weight signal and is operable to output a first weighted metric. A second multiplying node receives a second unweighted metric and a second weight signal and outputs a second weighted metric. A summing node receives the first and second weighted metrics and outputs a combined weighted metric to an LPOS word decoder.

REFERENCES:
patent: 5311380 (1994-05-01), Murata et al.
patent: 5568327 (1996-10-01), Pahr et al.
patent: 5717538 (1998-02-01), Cheung et al.
patent: 6724561 (2004-04-01), Wyman
patent: 6914744 (2005-07-01), Wang
patent: 6992857 (2006-01-01), Knowles et al.
patent: 7164550 (2007-01-01), Kisaka
patent: 7193812 (2007-03-01), Eaton
patent: 7480114 (2009-01-01), Cherubini et al.

Affiliated with

Also associated with

Rating

Combining information from parallel servo channels does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Combining information from parallel servo channels, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Combining information from parallel servo channels will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2685709