Abstract: A CPU 14 built in to a device 1 starts inspection processing in response to an I/F 17 having received an inspection start command from an external terminal 3, switches an inspection terminal 13, which is a redundant terminal 11, over to be an input terminal with a pull-up resistor, applies a predetermined voltage to the inspection terminal 13, detects the input voltage of the inspection terminal 13, and transmits the detected input voltage as an inspection result to the external terminal 3.

Abstract: A CPU 14 built in to a device 1 starts inspection processing in response to an I/F 17 having received an inspection start command from an external terminal 3, switches an inspection terminal 13, which is a redundant terminal 11, over to be an input terminal with a pull-up resistor, applies a predetermined voltage to the inspection terminal 13, detects the input voltage of the inspection terminal 13, and transmits the detected input voltage as an inspection result to the external terminal 3.

Abstract: A disk drive apparatus is disclosed for stabilizing a track jumping operation of an objective lens. The disk drive apparatus includes a detection section for detecting the direction that object lens is being moved by a tracking operation, and a discrimination section for discriminating the direction of the track jumping operation. A track jump movement then performed based on the detection of movement and discrimination of the track jump operation. Therefore, the track jump is stabilized without being influenced by the movement of the objective lens by the tracking operation.

Abstract: An object of this invention is to provide a recording apparatus, reproducing apparatus, recording method and reproducing method for recording or reproducing data in/from a recording medium while the recording medium is rotating by inertia after a rotation thereof by driving is stopped.

Abstract: An object of this invention is to provide a reproducing method and apparatus capable of facilitating a processing operation for permitting a write into a temporal memory means by reading data from a recording medium driven at a variable driving speed, permitting the write into a temporal memory means according to a signal reproduced from the recording medium and if there is a permission for the write in a period generated at a predetermined cycle and allowing the write into the temporal memory means, writing the data read to the temporal memory means.

Abstract: A disk drive apparatus is disclosed wherein a track jumping operation of an objective lens is stabilized. The disk drive apparatus includes a detection section for detecting in which one of a radially inward direction and a radially outward direction the object lens is being moved by a tracking operation, and a discrimination section for discriminating which one of the radially inward direction and the radially outward direction the direction of the track jumping operation is. When the moving direction of the objective lens and the direction of the track jump coincide with each other, a track jumping pulse signal including a moving pulse signal of a comparatively low level and a braking pulse signal of a comparatively high level is selected.