Abstract: Regular-size white cells are expanded in advance to adjust a boundary between black cells and the white cells before a printing operation is performed. Shrinkage of black cells occurs in the region where the expanded white cells overhang over the neighboring black cells. No shrinkage of the black cells occurs in the boundary between two black cells which are located next to each other. A region where one white cell overhangs over another white cell remains white. This is simply realized by outputting 0 for the region where the white dot (0) and the black dot (1) are overlapped and by outputting 0 for the region where two white dots (0) are overlapped. By shrinking the black cells beforehand in this manner, the overhang of the black cells over the while cells is reduced or completely eliminated when they grow fat through the data reading performed by facsimile or copying machines.

Abstract: The present invention discloses improvements in notebook-like products, such as notebooks, books, picture books and bank books, in which a window-like aperture is cut from at least some of the pages, and a pocket having a transparent face is mounted inside the front cover, the back cover, or both, of the notebook, the pocket being disposed directly opposite the window-like apertures so that an indicia-bearing element, such as a picture, a photograph, a calendar or short notes can be slipped into the pocket for viewing through a series of adjacent pages.

Abstract: Apparatus for optically reading printed information by radiating light onto printed information to be reflected thereby, receiving the reflected light through an optical system and converting the image of the reflected light into a corresponding electric signal. The light source employs red light emitting diodes which radiate highly bright red light having a wavelength peak at about 660 nm so that the image sensor can receive a highly contrasting reflected light from the information printed in black on a white base. The light source further or alternatively employs infrared light emitting diodes for radiating the light having a peak wavelength at about 925 nm so that the image sensor can also received a highly contrasting reflected light from information printed in black on a blue or green base.

Abstract: Apparatus for reading optical information such as a bar code capable of reflecting ambient light and including a hand-held reader containing an image sensor. The hand-held reader is constructed so that ambient light illuminates the optical information, whereby an image of the optical information is imaged by ambient light reflected from the optical information on the image sensor so that the image is converted into an electric signal. The hand-held reader further includes a light detector for detecting intensity of the ambient light and the image sensor is controlled so that the exposure time thereof is changed in accordance with intensity of the ambient light detected by the light detector.

Abstract: A detecting apparatus for compensating for changes in supply voltage to a physical parameter sensor. The apparatus includes an input element, such as a heatsensitive resistor connected to a voltage source to produce a voltage signal (C.sub.S) corresponding to a physical factor, e.g., a temperature. A constant voltage circuit or a voltage divider connected to the same voltage source as the input element produces a reference voltage signal (C.sub.R) corresponding to a predetermined reference value of the input element. Both voltage signals (C.sub.S, C.sub.R) are applied to a microcomputer in which a correction value (C.sub.C) is calculated on the basis of the both voltage signals (C.sub.S, C.sub.R) and a theoretical set value (C.sub.O) of the reference voltage signal (C.sub.R). The detected physical factor by the input element is corrected by the correction value (C.sub.C).

Abstract: The present invention relates to a dispenser carton for accommodating a roll of aluminum foil or the like, and more particularly to a dispenser carton with a new function, by which numerous aligned vents can be made on the foil at the same time simply by a simple and safe operation, namely, through the motion of projections provided on the reverse side of the dispenser carton cover by closing and opening the cover thereof.