Magnetic tape device with mechanism for controlling threading operation
AssigneeFujitsu Limited
InventorsMasayoshi Kobayashi, Masahiko Sakaguchi, Tsuneyoshi Oohara
Life of this patent
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Abstract
A device for receiving a tape cartridge having a reel and a record tape winded around the reel where the record tape has a mounting unit attached to one end thereof includes an engaging unit which engages with the mounting unit, a threader arm which carries the engaging unit together with the mounting unit along a predetermined path to thread the record tape in the device during a threading operation and to unthread the record tape from the device during an unthreading operation, a reel motor which drives the reel of the tape cartridge, and a control unit which controls the reel motor to adjust tension in the record tape during the threading operation and the unthreading operation.
Claims5
A device for receiving a tape cartridge having a reel and a record tape wound around the reel where the record tape has a mounting unit attached to one end thereof, comprising:
- an engaging unit which engages with the mounting unit;
- a threader arm which carries said engaging unit together with the mounting unit along a predetermined path to thread the record tape in said device during a threading operation and to unthread the record tape from the said device during an unthreading operation;
- a reel motor which drives the reel of the tape cartridge;
- and
- a control unit which controls said reel motor to adjust tension in the record tape during the threading operation and the unthreading operation by controlling threading speed of the threading operation, wherein the threading speed of the threading operation is controlled based on predetermined relationships between distances covered by the threading operation and desired threading speeds.
A device for receiving a tape cartridge having a record tape therein where the record tape has a mounting unit attached to one end thereof, comprising:
- an engaging unit which engages with the mounting unit;
- and
- a threader arm which carries said engaging unit together with the mounting unit along a predetermined path to thread the record tape in said device,
- said engaging unit being configured to securely fit in said mounting unit for at least two different types of tape cartridges while a position of said engaging unit in a vertical direction relative to said mounting unit remains the same regardless of types of tape cartridges.
A device for receiving a tape cartridge having a record tape therein where the record tape has a mounting unit attached to one end thereof,
- an engaging unit which engages with the mounting unit;
- a reel;
- a threader arm which carries said engaging unit together with the mounting unit along a predetermined path in a threading direction in said device to engage said mounting unit in said reel;
- a threader motor which drives said threader arm;
- and
- a control unit which controls said threader motor to drive said threader arm in an unthreading direction opposite to said threading direction for a predetermined time period while said mounting unit is being engaged in said reel before any data is recorded in or reproduced from the record tape.
Dependencies are inferred from the claim text.