| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 360740100 | Stopping or reversing | 9 |
| 20080239546 | Disk drive apparatus having shock adaptive filters - According to one embodiment, a disk drive apparatus includes a sensor to detect mechanical shocks to the disk drive apparatus and to provide a shock output signal representative of such mechanical shocks, a first filter coupled to the sensor to filter the shock output signal to pass signals having a first frequency component, a second filter to independently filter the shock output signal to provide signals having a second frequency component, a detector to inhibit write operations of the disk drive apparatus responsive to the shock output signal from the first filter, and a controller coupled to the second filter to compensate for low frequency mechanical disturbances during write operations to a track on the disk drive apparatus responsive to low frequency component. | 10-02-2008 |
| 20100246051 | STOPPING METHOD FOR A SPINDLE MOTOR AND RELATED DEVICE - A method and circuit to stop a spindle motor in the absence of the external supply voltage in which the spindle motor is structured to move a hard disk provided with at least one reading or writing head moved by a voice coil motor, the spindle motor provided with a plurality of coils. The method includes rectifying the backelectromotive force of the spindle motor to produce a braking current, driving the voice coil motor with at least a portion of the braking current until the speed of the spindle motor becomes lower than a predetermined stop speed, and, after the parking of the at least one reading or writing head of the voice coil motor, stopping the spindle motor by short-circuiting the coils of the spindle motor. | 09-30-2010 |
| 20110261482 | INFORMATION PROCESSING APPARATUS AND HEAD EVACUATION PROCESSING METHOD THEREFOR - An information processing apparatus includes a hard disk drive, an acceleration detection portion, and a controller. The hard disk drive has a protective function for moving a head from a recording area of a disk to an evacuation position. The acceleration detection portion is configured to detect, as a detection target acceleration, an acceleration in one of a vertical direction and an almost-vertical direction with respect to a gravity direction. The controller is configured to detect a movement based on the acceleration detected as the detection target acceleration and determine whether to activate the protective function of the hard disk drive based on the detected movement. | 10-27-2011 |
| 20110292539 | MAGNETIC TAPE DRIVING APPARATUS, MAGNETIC TAPE DRIVING METHOD - A magnetic tape driving apparatus, which does not cause damage to either a magnetic head or a magnetic tape when making transition of the magnetic tape from a stopped state to a running state, when making transition of the magnetic tape from a running state to a stopped state, or when reversing the transportation direction of the magnetic tape, is provided. In a state where any one of a magnetic head and a magnetic tape moves and the other rests (i.e., a state where static friction may occur), such as at the time of starting transportation of the magnetic tape, at the time of stopping the tape in a running state, and at the time of reversing the transportation direction of the magnetic tape, a head displacing portion vibrates the magnetic head under the control by a displacement control portion, and thus no static friction occurs between the magnetic head and the magnetic tape. Therefore, the risk of causing damage to the magnetic head (such as an MR head unit equipped with an MR element) or the magnetic tape can be reduced. | 12-01-2011 |
| 20120127601 | LUBRICANT COMPOUND FOR MAGNETIC DISK AND MAGNETIC DISK - A lubricant compound for a magnetic disk is provided which can realize further reduction of the magnetic spacing and moreover, has high reliability under a lower floating amount of the magnetic head involved with the recent rapid increase in the recording density and under extremely severe environmental resistance involved with diversification of the applications. | 05-24-2012 |
| 20130163109 | MAGNETIC TAPE APPARATUS AND MAGNETIC TAPE APPARATUS CONTROL METHOD - A magnetic tape apparatus includes a first and second suction tubes, each of which couples the blade with an edge part of the roller of the roller guide, the first suction tube having a blade side opening area at a location where air is sucked by the blade during a forward rotation of a motor, a second suction tube having a blade side opening area at a location where air is sucked by the blade during the backward rotation of the motor, a shutter unit to perform opening and closing of the first and second suction tubes, and an opening and closing control unit to control the shutter unit to open the first suction tube during the forward rotation and open the second suction tube during the backward rotation. | 06-27-2013 |
| 20140293471 | LIBRARY DEVICE AND CONTROL METHOD THEREOF - A cell stores a plurality of magnetic tapes. A conveyance mechanism manages movement of the magnetic tapes stored in the cell. An interlock switch cam moves in a predetermined direction when a pressing force from an inner door claw is removed. An interlock switch shuts off power supply to the conveyance mechanism when the interlock switch cam moves in the predetermined direction. A disabling button moves on a moving path of the interlock switch cam by receiving an instruction from an operator and prevents the interlock switch cam from moving in the predetermined direction. | 10-02-2014 |
| 360740200 | Responsive to reel rotation | 1 |
| 20150146321 | CONTROLLING DATA WRITING OF TAPE RECORDING APPARATUS - A method according to another embodiment includes writing data on a tape medium in a direction from a first end toward a second end of the tape medium using a tape recording apparatus. The tape recording apparatus includes a magnetic head and is configured to record data on tape media. The method further includes wrap-turning the running direction of the tape medium before reaching the second end and writing a first portion of data remaining to be written when the data remaining to be written is smaller than a volume of the data to be written in one running of the tape medium so that an end of the data is written at a position close to the first end, and writing a second portion of data remaining to be written toward the first end. | 05-28-2015 |
| 360740400 | Responsive to magnetic recorded signals | 1 |
| 20140085746 | APPARATUS, METHOD AND PROGRAM PRODUCT FOR CONTROLLING DATA WRITING OF TAPE RECORDING APPARATUS - In one embodiment, a write controlling method is provided that adjusts the timing to wrap-turn the tape running direction depending on the data amount in order to reduce the time required for positioning in reading any data by performing back-and-forth data writing by positioning a magnetic head of a tape recording apparatus at a predetermined position close to a first end of the tape medium, writing data on the tape medium starting from the predetermined position toward a second end of the tape medium, wrap-turning a running direction of the tape medium when the magnetic head reaches the second end of the tape medium, and writing the data on the tape medium from the second end toward the first end. | 03-27-2014 |
