Magnetic recording and playback apparatus and magnetic recording and playback method
AssigneeSony Corporation
InventorYasunori Azuma
Life of this patent
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Abstract
The invention provides a magnetic recording and playback apparatus and method which can access a magnetic tape in a significantly reduced time when applied, for example, to a tape streamer for backing up data of a server. In the magnetic recording and playback apparatus, data necessary for accessing to a magnetic tape and part of user data recorded on the magnetic tape are recorded at a predetermined position of the magnetic tape, and then the magnetic tape is discharged.
Claims17
A magnetic recording and playback apparatus for successively forming slant tracks on a magnetic tape and recording user data onto the slant tracks, comprising:
- means for recording data necessary for accessing to the magnetic tape and part of the user data recorded on the magnetic tape at a predetermined position of the magnetic tape;
- and
- means for discharging the magnetic tape.
A magnetic recording and playback method for successively forming slant tracks on a magnetic tape and recording user data onto the slant tracks, comprising the steps of:
- recording data necessary for accessing to the magnetic tape and part of the user data recorded on the magnetic tape at a predetermined position of the magnetic tape;
- and
- discharging the magnetic tape.
A recording apparatus for recording user data onto tracks of a magnetic tape, comprising:
- means for receiving an instruction to unload a magnetic tape cassette loaded in said recording apparatus from said recording apparatus;
- and
- means operable upon reception of the unloading instruction for recording information necessary for later accessing to the magnetic tape into an unloading position of the magnetic tape and a memory incorporated in the magnetic tape cassette.
A recording method for a recording apparatus for recording user data onto tracks of a magnetic tape, comprising the steps of:
- receiving an instruction to unload a magnetic tape cassette loaded in said recording apparatus from said recording apparatus;
- and
- recording, upon reception of the unloading instruction, information necessary for later accessing to the magnetic tape into an unloading position of the magnetic tape and a memory incorporated in the magnetic tape cassette.
A recording apparatus for recording user data onto tracks of a magnetic tape, comprising:
- means for receiving an instruction to unload a magnetic tape cassette loaded in said recording apparatus from said recording apparatus;
- and
- means operable upon unloading of the magnetic tape cassette in accordance with the unloading instruction for recording identification code data recorded at the top of a user area of the magnetic tape and unloading data representative of a recorded position of the identification code data into an unloading position of the magnetic tape and a memory incorporated in the magnetic tape cassette.
A recording method for a recording apparatus for recording user data onto tracks of a magnetic tape, comprising the steps of:
- receiving an instruction to unload a magnetic tape cassette loaded in said recording apparatus from said recording apparatus;
- and
- recording, upon unloading of the magnetic tape cassette in accordance with the unloading instruction, identification code data recorded at the top of a user area of the magnetic tape and unloading data representative of a recorded position of the identification code data into an unloading position of the magnetic tape and a memory incorporated in the magnetic tape cassette.
A recording apparatus for recording user data onto tracks of a magnetic tape, comprising:
- means for receiving an instruction to unload a magnetic tape cassette loaded in said recording apparatus from said recording apparatus;
- and
- means operable upon unloading of the magnetic tape cassette in accordance with the unloading instruction for storing information necessary for subsequent accessing to the magnetic tape and part of data recorded in a user area of the magnetic tape into an unloading position of the magnetic tape and a memory incorporated in the magnetic tape cassette so that data designated to be played back first by a plurality of application programs may be acquired.
A recording method for a recording apparatus for recording user data onto tracks of a magnetic tape, comprising the steps of:
- receiving an instruction to unload a magnetic tape cassette loaded in said recording apparatus from said recording apparatus;
- and
- storing, upon unloading of the magnetic tape cassette in accordance with the unloading instruction, information necessary for subsequent accessing to the magnetic tape and part of data recorded in a user area of the magnetic tape into an unloading position of the magnetic tape and a memory incorporated in the magnetic tape cassette so that data designated to be played back first by a plurality of application programs may be acquired.
A recording apparatus for recording user data onto tracks of a magnetic tape, comprising:
- means for receiving an instruction to unload a magnetic tape cassette loaded in said recording apparatus from said recording apparatus;
- and
- means operable upon unloading of the magnetic tape cassette in accordance with the unloading instruction for storing directory information table information representative of data necessary for subsequent accessing to the magnetic tape and unloading data information representative of part of data recorded in a user area of the magnetic tape into an unloading position of the magnetic tape and a memory incorporated in the magnetic tape cassette.
A recording method for a recording apparatus for recording user data onto tracks of a magnetic tape, comprising the steps of:
- receiving an instruction to unload a magnetic tape cassette loaded in said recording apparatus from said recording apparatus;
- and
- storing, upon unloading of the magnetic tape cassette in accordance with the unloading instruction, directory information table information representative of data necessary for subsequent accessing to the magnetic tape and unloading data information representative of part of data recorded in a user area of the magnetic tape into an unloading position of the magnetic tape and a memory incorporated in the magnetic tape cassette.
Dependencies are inferred from the claim text.