Disk drive system employing effective disk surface stabilization mechanism

A disk cartridge comprising:

• a flexible optical disk driven by a driving part of an optical information recording device;
• and
• a stabilization part provided on a single non-record side of the optical disk opposite to a single record surface where writing/reading is performed by an optical writing part of the optical information recording device, said stabilization part having only one stabilization surface,
• wherein said optical writing part and stabilization part are opposed to one another through the optical disk, and wherein said stabilization part is provided only on said single non-record side of the optical disk, such that stabilizing of vibration of the disk along a rotation axis direction, by pressure difference of air flow at a portion on which information writing/reading is performed, occurs only on said single non-record side of the optical disk.

A method of controlling an optical recording/reproducing device which comprises a driving part driving and rotating a flexible optical disk;

• a pickup performing optical writing/reading onto a single recording surface of the optical disk, and a stabilization guide member provided on a single non-record side of the optical disk opposite to the single recording surface for stabilizing surface vibration of the optical disk at a portion on which writing/reading is performed by pressure difference of air flow, comprising the steps of:
• adjusting a mutual position along the disk between the stabilization guide member and pickup along both the single recording surface and the single non-record side of the optical disk according to the rotation speed of the optical disk, wherein
• the stabilization guide member is positioned by a stabilization guide member positional control mechanism,
• the pickup is positioned by a pickup position setting mechanism, and
• the stabilization guide member is provided only on said single non-record side of the optical disk, such that stabilizing of vibration of the disk along the rotation axis direction, by pressure difference of air flow at said portion on which information writing/reading is performed, occurs only on said single non-record side of the optical disk.

A method of controlling an optical recording/reproducing device which comprises a driving part driving and rotating a flexible optical disk;

• a pickup performing optical writing/reading onto a recording surface of the optical disk, and a stabilization guide member provided only on a single side of the optical disk opposite to a side of a recording surface, and stabilizing surface vibration of the optical disk at a portion on which writing/reading is performed by pressure difference of air flow, comprising the steps of:
• adjusting a mutual position along the disk recording surface between the stabilization guide member and pickup along the recording surface of the optical disk according to the rotation speed of the optical disk, wherein
• the stabilization guide member is positioned by a stabilization guide member positional control mechanism,
• the pickup is positioned by a pickup position setting mechanism, and
• wherein a relationship between the position of the stabilization guide member and a surface vibration stabilization position along the recording surface of the optical disk in case the rotation speed of the optical disk is changed is previously measured, and, the position of the stabilization guide member along the recording surface of the optical disk is adjusted so that the surface vibration stabilization position on the optical disk moves along a straight line in a radius direction of the optical disk.

An optical recording/reproducing device comprising:

• a driving part driving and rotating a flexible optical disk;
• a pickup performing optical writing/reading onto a single recording surface of the optical disk;
• a stabilization guide member provided on a single non-record side of the optical disk opposite to the single recording surface for stabilizing surface vibration of the optical disk at a portion on which writing/reading is performed by pressure difference of air flow;
• and
• an adjustment control part adjusting a mutual position along the disk between the stabilization guide member and pickup along both the single recording surface and the single non-record side of the optical disk according to the rotation speed of the optical disk;
• and
• wherein said stabilization guide member is provided only on said single non-record side of the optical disk, such that stabilizing of surface vibration of the disk, at said portion on which writing/reading is performed, by pressure difference of air flow, occurs only on said single non-record side of the disk.

An optical recording/reproducing device comprising:

• a driving part driving and rotating a flexible optical disk;
• a pickup performing optical writing/reading onto a recording surface of the optical disk;
• a stabilization guide member provided only on a single side of the optical disk opposite to a side of a recording surface, and stabilizing surface vibration of the optical disk at a portion on which writing/reading is performed by pressure difference of air flow;
• and
• an adjustment control part adjusting a mutual position along the disk recording surface between the stabilization guide member and pickup along the recording surface of the optical disk according to the rotation speed of the optical disk;
• and
• further comprising a storage part storing a measurement result of a relationship between the position of the stabilization guide member and a surface vibration stabilization position along the recording surface of the optical disk measured in case the rotation speed of the optical disk is changed, said adjustment control part performing, based on the measurement result, the position of the stabilization guide member along the recording surface of the optical disk being adjusted so that the surface vibration stabilization position on the optical disk moves along a straight line in a radius direction of the optical disk.