APPARATUS AND METHOD FOR READING OUT DATA RECORDED ON TAPE

An apparatus and method for reading out data recoded on a tape with a read head is provided. A command processing unit receives a request for reading out old data behind EOD of new data. A channel input/output unit receives, data read out with a read head and a buffer managing unit receives this dat...

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Main Authors TANAKA KEISUKE, NAKAMURA KENJI, OISHI YUTAKA, MASUDA SETSUKO
Format Patent
LanguageEnglish
Published 21.01.2010
Subjects
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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Abstract An apparatus and method for reading out data recoded on a tape with a read head is provided. A command processing unit receives a request for reading out old data behind EOD of new data. A channel input/output unit receives, data read out with a read head and a buffer managing unit receives this data. A header information determining unit determines whether this data includes header information of the old data. If it is determined that this data includes the header information of the old data, a data set determining unit determines whether a data set is extractable from this data. If it is determined that data set is not extractable, a move signal output unit outputs a signal for moving the read head in a direction of the new data.
AbstractList An apparatus and method for reading out data recoded on a tape with a read head is provided. A command processing unit receives a request for reading out old data behind EOD of new data. A channel input/output unit receives, data read out with a read head and a buffer managing unit receives this data. A header information determining unit determines whether this data includes header information of the old data. If it is determined that this data includes the header information of the old data, a data set determining unit determines whether a data set is extractable from this data. If it is determined that data set is not extractable, a move signal output unit outputs a signal for moving the read head in a direction of the new data.
Author TANAKA KEISUKE
NAKAMURA KENJI
OISHI YUTAKA
MASUDA SETSUKO
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Snippet An apparatus and method for reading out data recoded on a tape with a read head is provided. A command processing unit receives a request for reading out old...
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SubjectTerms INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
Title APPARATUS AND METHOD FOR READING OUT DATA RECORDED ON TAPE
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