Error controlled volume serial identification for varied track d

Details Error controlled volume serial identification for varied track d Error controlled volume serial identification for varied track d

1994-01-24

1995-05-30

Epps, Georgia Y.

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Data in specific format

360 49, 360 27, 360 39, 360 40, 360 722, G11B 509

Patent

active

054207274

ABSTRACT:
A tape drive subsystem discloses that variable length symbols can be used to reliably identify data stored on the tape. Machine controlling procedures are disclosed to encode and decode data for the reliable sensing of the serial number of a media, especially tape cartridges, having different track densities. The subsystem detects the serial number of the media and corrects, or at least detects, error patterns. A variable length symbol code is encoded in a plurality of groups with each group having a "one" being represented as an erase gap ERG signal covering a first two units of a group, and a "zero" is represented as one unit of an ERG signal, both followed by four units of an Inter Block Gap IBG signal.

REFERENCES:
patent: 4644418 (1987-02-01), Banno et al.
patent: 4685005 (1987-08-01), Fields, Jr.
patent: 4800550 (1989-01-01), Yamauchi
patent: 4802154 (1989-01-01), Verboom et al.
patent: 5084852 (1992-01-01), Bailey
patent: 5130966 (1992-07-01), Yoshio et al.
IBM Technical Disclosure Bulletin, vol. 19, No. 5, Oct., 1976, pp. 1619-1620, "Magnetic Tape Identification".

Affiliated with

Also associated with

Rating

Error controlled volume serial identification for varied track d 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 controlled volume serial identification for varied track d, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Error controlled volume serial identification for varied track d will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-366836