摘要:
A method and device for obtaining, by rapid and accurate calculation, a black-printer amount and a under-color amount to be removed in order to reproduce colors which are required on the prints. According to this invention, there is provided an under-color removal method and the device therefor including the steps of selecting a minimum density out of equivalent neutral densities of three primary colors in order to reproduce desired colors, calculating a black-printer amount of said selected equivalent neutral densities using a predetermined function, calculating the amounts of three primary color under-colors to be removed based on the three primary color equivalent neutral densities and the black-printer amount respectively and by means of a preset look-up table, subtracting the three primary color under-color removal amounts from the three primary color equivalent neutral densities, obtaining an amount of ink or dot percentage corresponding to a difference of the substraction and to the black-printer amount, and outputting the same.
摘要:
An image reading method for the case where an original image is read by main scannings and auxiliary scannings of lines and the read image is exposed and outputted as an output image onto a photosensitive material. When the photosensitive material may be a variety of sizes and the output image is of a given size, in order to have the output image fit onto the photosensitive material, a determination is made of the appropriate scanning direction of the original image according to size of the output image and the size of the photosensitive material, and reading said original image after it rotates, if necessary.
摘要:
The magnification ratio of image information carried on an original is changed for reproduction at a desired magnification ratio. The size of the image information is reduced or enlarged to a prescribed size by an optical system. Thereafter, the image information is photoelectrically converted by a light sensor. The photoelectrically converted image information is selectively picked up or data between adjacent items of the photoelectrically converted image information is determined by interpolation, thereby obtaining image information at a desired size.
摘要:
For recording an image on a photosensitive material with the employment of a liquid crystal device, the device used therein is conventionally constructed so as to modulate an amount of light rays transmitted therethrough or reflected thereby commonly by the control of an amount of electric voltage impressed to the liquid crystal device and/or impression timing or frequencies thereof. In this instance, although the light rays irradiated are considered normally as parallel, they are not intact strictly parallel light rays, and consequently unless the light rays transmitted from the device are converged by Selfoc lens arrays and the like, sufficient resolution can hardly be obtained on the photosensitive material on account of the light rays still having comparatively large diffusion coefficients. Since the liquid crystal device made in accordance with this invention is provided with its own image formation abilities, contact exposure with the photosensitive material is possible, and image formation optical systems which have been used in conjunction with the device is safely and advantageously eliminated, whereby parallelism limitations imposed on the irradiated rays can be reduced, and optical mechanisms therefor could be compact and have remarkably improved efficiencies.
摘要:
Adjustment of color density of a color picture to be recorded on a photosensitive material is performed in a color picture output device in such a manner that a test pattern print is outputted from the device and the density of the test pattern print is then compared with a standard pattern plate preliminarily prepared. After the actual output picture color density is measured by the standard pattern plate, the gain and offset for obtaining the standard density can be automatically calculated so as to thereby perform in smooth and high speed color picture outputting operation.
摘要:
Unevenness of luminance of a plurality of phosphors on a screen provided in the front end of an electron gun type fiber optic cathode-ray tube is corrected by first measuring luminance distributions at positions of picture elements of a picture to be scanned on the respective phosphors and calculating correction amounts needed to even up the measured luminance distributions. The calculated results are then stored in a table. The correction amount corresponding to a recording position is then added to the luminance signal when the picture is recorded and the sum is multiplied by a correction ratio which varies according to the level of the sum of the correction amount and the luminance signal.
摘要:
A semiconductor storage device includes a cell array including resistance change elements formed above a semiconductor substrate; first cell transistors formed on the semiconductor substrate and provided in association with the resistance change elements; first gate electrodes included in the first cell transistor and extending in a first direction; a first bit lines electrically connected to the resistance change elements respectively and extending in a second direction perpendicular to the first direction; a second bit lines electrically connected to one end of a current path of the first cell transistors respectively and extending in the second direction; and first active areas in which the first cell transistors are formed, and which extend in a direction crossing the first direction at a first angle.
摘要:
One embodiment provides a ferroelectric memory including: memory cells each including a ferroelectric memory; first and second bitlines configured to read out cell signals from the memory cells; a first circuit configured to fix, when the cell signal is read from the memory cell to the first bitline, a voltage of the second bitline to a first power-supply voltage, and then set the second bitline to a second power-supply voltage different from the first power-supply voltage; a second circuit configured to set, after the first circuit sets the second bitline to the second power-supply voltage, the second bitline to a reference voltage; and a third circuit configured to amplify a voltage difference between the first bitline to which the cell signal is read and the second bitline to which the reference voltage is set.
摘要:
Semiconductor memory contains memory cells having ferroelectric capacitors and cell transistors, bit lines connected to memory cells, word lines connected to gate electrodes of cell transistors, plate lines connected to one of two electrodes of ferroelectric capacitors, sense amplifiers connected between each pair of bit lines. Further, a test pad is provided in order to apply an external voltage to each of bit lines, test transistors are provided corresponding to bit lines respectively, each of test transistors is connected between the test pad and each of bit lines, a fatigue test bias circuit is connected to a first node located between the test pad and test transistors. Test transistors are shared in a first test to apply a first voltage to ferroelectric capacitors from an outside via the test pad and a second test to apply a second voltage to ferroelectric capacitors from the fatigue test bias circuit.
摘要:
A memory includes a cell array; bit lines; word lines; sense amplifiers; first determination transistors receiving information data and making a connection between a first voltage source and a first determination node be in a conductive or a non-conductive state based on a logic value of the information data; second determination transistors receiving the information data detected by the sense amplifiers and making a connection between the first voltage source and a second determination node be in a conductive or a non-conductive state based on the logic value of the information data; a second voltage source charging the first and the second determination nodes; and a determination unit detecting potentials of the first determination node and the second determination node when a logic of the information data is inverted logically to determine maximum and minimum values of potential of the information data.