Abstract: A headrest assembly may include a headrest having a first external surface and a second external surface and a hook slidingly engaged within the headrest. The hook may include a first hook portion and a second hook portion. When the hook is in a first position, the first hook portion is substantially flush with the first external surface and the second hook portion is substantially flush with the second external surface. When the hook is in a second position, the first hook portion is offset from the forward external surface and the second hook portion is offset from the rearward external surface.

Abstract: A hybrid exposure strategy for pattern generation uses wide field raster scan deflection and a uniformly moving stage to expose long stripes. Periodic analog wide field magnetic scan is augmented by a high speed electrostatic retrograde scan to keep the beam stationary during exposure of rectangular flash fields. The system's data path utilizes a pattern represented in a rasterized format. Intermediate vector data bases are created using fracture rules that limit feature and hierarchical cell size of to be smaller than overlapping fringes of stripe data fields. Rectangular flash fields are employed with each field being a 1 by n array of writing pixels. The length, origin position and dose of line shaped beam flashes can be varied to allow patterns to be exposed on a design grid much smaller than a writing pixel. The length, origin position and dose data for each flash is derived from a rasterized data format using a decoder device.