Abstract: According to one embodiment, an information processor includes a gaze area registration unit, an object registration unit, a learning unit, a work process registration unit, and an output unit. The gaze area registration unit receives registration of a gaze area. The object registration unit receives registration of an object used in work. The learning unit learns a transition in the presence or absence of the object in the gaze area or a transition in the state of the object according to the progress of the work based on a training image that contains the object. The work process registration unit receives registration of information related to work processes, which are obtained by breaking down the work into elements and defined based on the transition. The output unit outputs a verification result regarding the work processes included in the work captured, which is obtained based on learning in the learning unit.

Abstract: A servo write head for writing a servo pattern on a magnetic tape is provided. A flat magnetic pattern writing surface has a magnetic gap contoured to correspond to the servo pattern, and is disposed to allow the magnetic tape to slidably contact therewith. Sloped surfaces are disposed upstream and downstream of the magnetic pattern writing surface in a magnetic tape transport direction at positions retreated from a position of the magnetic pattern writing surface. The sloped surfaces extend obliquely relative to the magnetic pattern writing surface. Connecting surfaces curved gently to smoothly connect the sloped surfaces to the magnetic pattern writing surface are disposed between the magnetic pattern writing surface and each of the sloped surfaces.

Abstract: A servo write head for writing a servo pattern on a magnetic tape is provided. A flat magnetic pattern writing surface has a magnetic gap contoured to correspond to the servo pattern, and is disposed to allow the magnetic tape to slidably contact therewith. Sloped surfaces are disposed upstream and downstream of the magnetic pattern writing surface in a magnetic tape transport direction at positions retreated from a position of the magnetic pattern writing surface. The sloped surfaces extend obliquely relative to the magnetic pattern writing surface. Connecting surfaces curved gently to smoothly connect the sloped surfaces to the magnetic pattern writing surface are disposed between the magnetic pattern writing surface and each of the sloped surfaces.