Apparatus and method for writing and reading data to and...

Details Apparatus and method for writing and reading data to and... Apparatus and method for writing and reading data to and...

2011-04-19

2011-04-19

Olson, Jason C (Department: 2627)

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Data in specific format

Reexamination Certificate

active

07929236

ABSTRACT:
The present invention enhances the capability to specify a recorded position of designated data, even when a tape medium is run at high speed. A controller of a tape drive includes: a data set generator for generating a data set; a metadata generator for generating metadata including the number of records in the data set and the like; and a writing unit for writing the data set to the tape medium with a high recording density, and writing the metadata to the tape medium with a low recording density. The controller also includes: a movement controller for receiving a record number of a designated record; a reading unit for obtaining the number of records and the like included in the metadata read by running the tape medium at high speed; and a comparison unit for determining whether or not to read the data set by lowering the speed of the tape medium to R/W speed, in comparison with the record number received by the movement controller and the number of records and the like obtained by the reading unit.

REFERENCES:
patent: 5194997 (1993-03-01), Kozuki et al.
patent: 5898533 (1999-04-01), Mantey et al.
patent: 6532128 (2003-03-01), Bui et al.
patent: 6937412 (2005-08-01), Gill et al.
patent: 7095583 (2006-08-01), Johnson et al.
patent: 7522371 (2009-04-01), Koski et al.
patent: 2003/500788 (2003-01-01), None
patent: 00/72323 (2000-11-01), None

Affiliated with

Also associated with

Rating

Apparatus and method for writing and reading data to and... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus and method for writing and reading data to and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for writing and reading data to and... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2737045