Error correction capability for longitudinal position data...

Details Error correction capability for longitudinal position data... Error correction capability for longitudinal position data...

2008-02-19

2010-10-12

Tzeng, Fred (Department: 2627)

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Data verification

Reexamination Certificate

active

07813070

ABSTRACT:
A longitudinal position (LPOS) word L(n) is encoded with error correction capability. The LPOS word includes a plurality of LPOS symbols L0(n) through Lk(n) calculated asL⁡(n)=∑i=05⁢Li⁡(n)⁢14iand representing a longitudinal position of a magnetic tape relative to a tape head in a tape storage system. A word type is determined in response to at least one of the plurality of LPOS symbols and, in response to the determined word type, at least one formatted symbol F(n) is generated from the plurality of LPOS symbols L(n). At least one parity symbol P(n) is generated from the formatted symbol F(n). The formatted and parity symbols are communicated to a servo channel of the tape storage system to be recorded onto a servo track of the magnetic tape. Adding redundancy to LPOS words provides the capability of correcting multiple bit errors without increasing the LPOS word length.

REFERENCES:
patent: 4630272 (1986-12-01), Fukami et al.
patent: 4688225 (1987-08-01), Fukami et al.
patent: 4768108 (1988-08-01), Higurashi
patent: 4866636 (1989-09-01), Fukami et al.
patent: 4975915 (1990-12-01), Sako et al.
patent: 5355132 (1994-10-01), Kani et al.
patent: 5394277 (1995-02-01), Pahr et al.
patent: 5568327 (1996-10-01), Pahr et al.
patent: 5666461 (1997-09-01), Igarashi et al.
patent: 5796912 (1998-08-01), Sato
patent: 5802243 (1998-09-01), Yao et al.
patent: 6005727 (1999-12-01), Behrens et al.
patent: 6031959 (2000-02-01), Hamai et al.
patent: 6101313 (2000-08-01), Igarashi et al.
patent: 6462898 (2002-10-01), Blaum et al.
patent: 6631492 (2003-10-01), Marchant
patent: 6791781 (2004-09-01), Bui et al.
patent: 6947663 (2005-09-01), Koda et al.
patent: 7239794 (2007-07-01), Koda et al.
patent: 7317864 (2008-01-01), Koda et al.
patent: 7421640 (2008-09-01), Cideciyan et al.
patent: 2007/0014042 (2007-01-01), Nylander-Hill et al.
patent: 2007/0044007 (2007-02-01), Cideciyan et al.
patent: 2007/0074024 (2007-03-01), Cheong et al.
patent: 2008/0056409 (2008-03-01), Koda et al.
patent: 2008/0056685 (2008-03-01), Koda et al.
patent: 2008/0080833 (2008-04-01), Koda et al.

Affiliated with

Also associated with

Rating

Error correction capability for longitudinal position data... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Error correction capability for longitudinal position data..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Error correction capability for longitudinal position data... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4221352