公开(公告)号：US20220415343A1

公开(公告)日：2022-12-29

申请号：US17822133

申请日：2022-08-25

Applicant: FUJIFILM CORPORATION

Inventor： Michitaka KONDO ,  Yutaka OISHI ,  Takashi MIYAMOTO ,  Terue WATANABE ,  Koji MATSUMURA ,  Yuko UNO

IPC: G11B5/008

Abstract: An information processing device selects, in a case where a plurality of pieces of data are collected and transmitted to a tape drive to be recorded on a magnetic tape, one mode of a first mode of transmitting a data group obtained by collecting the plurality of pieces of data without compression, to the tape drive, a second mode of transmitting a compressed data group in which the data group obtained by collecting the plurality of pieces of data is compressed, to the tape drive, or a third mode of transmitting a data group obtained by collecting a part of the plurality of pieces of data and remaining data, in which the part of the plurality of pieces of data is compressed and the remaining data is not compressed, to the tape drive, and transmits a data group generated in accordance with the selected mode, to the tape drive.

公开(公告)号：US20220413730A1

公开(公告)日：2022-12-29

申请号：US17929302

申请日：2022-09-01

Applicant: FUJIFILM CORPORATION

Inventor： Michitaka KONDO ,  Yutaka OISHI ,  Takashi MIYAMOTO ,  Terue WATANABE ,  Koji MATSUMURA ,  Yuko UNO

IPC: G06F3/06

Abstract: An information processing device includes at least one processor. The processor performs, in a case where an address relative value between a first address value indicating an end position in a tape running direction of recorded data which is data recorded in a first partition of a magnetic tape having the first partition in which data is recorded and a second partition in which metadata corresponding to the data is recorded and a second address value indicating an end position in the tape running direction of latest metadata recorded in the second partition is within a predetermined range, control to record metadata corresponding to recorded data recorded after the latest metadata is recorded, in the second partition.

公开(公告)号：US20220391142A1

公开(公告)日：2022-12-08

申请号：US17819320

申请日：2022-08-12

Applicant: FUJIFILM CORPORATION

Inventor： Michitaka KONDO ,  Yutaka OISHI ,  Takashi MIYAMOTO ,  Terue WATANABE ,  Koji MATSUMURA ,  Yuko UNO

IPC: G06F3/06

Abstract: An information processing device performs, in a case where, out of a plurality of magnetic tapes on which data is multiplexed and recorded, the number of the magnetic tapes which is equal to or more than a predetermined number of multiplexes are stored in a storage unit, first control to handle each magnetic tape stored in the storage unit, to be readable and writable, and performs, in a case where the number of the magnetic tapes which is less than the number of multiplexes are stored in the storage unit, second control to handle the magnetic tape stored in the storage unit, to be read-only.

公开(公告)号：US20220382479A1

公开(公告)日：2022-12-01

申请号：US17819319

申请日：2022-08-12

Applicant: FUJIFILM CORPORATION

Inventor： Michitaka KONDO ,  Yutaka OISHI ,  Takashi MIYAMOTO ,  Terue WATANABE ,  Koji MATSUMURA ,  Yuko UNO

IPC: G06F3/06

Abstract: An information processing apparatus performs, in a case where an object including at least one of data or metadata related to the data is recorded in a magnetic tape, control of reading one or more object groups and one or more metadata groups recorded in the magnetic tape including a first partition in which one or more objects are to be recorded and a second partition in which pieces of the metadata are to be recorded, and determines, in a case of recording the object groups in the first partition of a certain magnetic tape of a plurality of magnetic tapes different from the magnetic tape and recording the metadata groups in the second partition of the certain magnetic tape, for a set of the one or more object groups and the one or more metadata groups, a magnetic tape as a recording destination of the object groups and the metadata groups, from the plurality of magnetic tapes, according to a ratio between a size of the object groups and a size of the metadata groups.

公开(公告)号：US20220382462A1

公开(公告)日：2022-12-01

申请号：US17818716

申请日：2022-08-10

Applicant: FUJIFILM CORPORATION

Inventor： Michitaka KONDO ,  Yutaka OISHI ,  Takashi MIYAMOTO ,  Terue WATANABE ,  Koji MATSUMURA ,  Yuko UNO

IPC: G06F3/06

Abstract: An information processing apparatus acquires a plurality of pieces of data having any one of a plurality of different attribute values, and performs control of recording the plurality of pieces of data in a magnetic tape in a contiguous sequence of pieces of data having one of different attribute values or data groups having different attribute values.

公开(公告)号：US20210383826A1

公开(公告)日：2021-12-09

申请号：US17393404

申请日：2021-08-04

Applicant: FUJIFILM CORPORATION

Inventor： Eiki OZAWA ,  Michitaka KONDO ,  Kentaro MIYAMOTO ,  Naoki SANO

IPC: G11B5/008 ,  G11B5/708 ,  G11B5/71 ,  G11B5/735 ,  G11B5/78

Abstract: An information processing device includes a generation unit that generates a hierarchy of a group that classifies each piece of data from information about each of a plurality of pieces of data to be recorded, and a control unit that controls recording of the plurality of pieces of data included in a group of the hierarchy at a highest level on a magnetic recording medium in a recording order according to an order from an upper hierarchy to a lower hierarchy, for each group of the hierarchy at the highest level. The magnetic recording medium has a magnetic layer containing a ferromagnetic powder and a binding agent on a non-magnetic support. A difference between spacings S0.5 and S13.5 measured under pressures of 0.5 atm and 13.5 atm by an optical interference method after n-hexane cleaning on a surface of the magnetic layer is equal to or less than 3.0 nm.

公开(公告)号：US20210005221A1

公开(公告)日：2021-01-07

申请号：US17022110

申请日：2020-09-16

Applicant: FUJIFILM CORPORATION

Inventor： Kentaro MIYAMOTO ,  Takashi MIYAMOTO ,  Michitaka KONDO

IPC: G11B20/10 ,  G11B5/008

Abstract: A recording device includes: a recording unit that records plural objects including data and metadata related to the data on a portable recording medium, and executes a process of recording first set data, which is a set of the metadata included in the object, at every predetermined timing after recording at least one of the objects, wherein each piece of the first set data is a set of the metadata included in the object recorded after recording of immediately preceding recorded first set data.