A data system may detect and halt unauthorized bulk data copy operations without interfering with or degrading authorized data copy operations. In one embodiment, a preprocessor component performs a pyramid image decomposition on a video frame captured by a camera. The frame-shaped body is rigid and maintains a shape that follows an outer shape of the frame member when an occupant is seated, and has a first portion where an end portion of the sheet-shaped body is fixed, and a second portion where the end portion of the sheet-shaped body is not fixed. The power consumption of the computer system is further reduced in comparison with a normal working state when the power saving mode of the computer system is further raised. The pivot bearing cartridge further includes a ball bearing set in mechanical communication with the pivot shaft and the cap annular body. , its manufacturing method and a lithium secondary battery using the positive electrode material.