Abstract: Apparatus for reproducing a scanned picture with sharpness emphasized. A scanner is provided for scanning a picture to be reproduced in two directions perpendicular to one another and for generating and recording signals representing the scanned picture. There is a sharpness emphasizing device for summing and averaging a plurality of picture element signals aligned in one of the scanning directions in the vicinity of a scanning point in the picture being scanned and recorded to generate values and then summing and averaging a plurality of the resulting summed and averages picture signals aligned in the other scanning direction in the vicinity of said scanning point to generate further values and then producing a recording signal equal to S+k(S-U), where k is a constant chosen to enhance a particular characteristic of the scanned picture, S is the sharp signal component at said scanning point and U is a generated unsharp signal.
Abstract: An apparatus for editing picture images and reproducing edited images is disclosed. Positional information, which indicates areas of a film and color plate for which editing operations (including cropping, processing, bordering, flat tone processing, and cutting mask processing) are to be performed, is gathered in process for each color which is included in the color plate. Picture signals are obtained by photoelectrically scanning color original pictures, and the signals are stored and processed; a halftone dot area is created and the ratio data necessary for carrying out the above-described processing is selected and the color plate signals are organized so that the halftone dot area ratio is produced with pre-determined priority order according to the positional information. The editing apparatus thus performs sequentially the process of reproducing original images by recording and arranging the images according to a programmed operator selectable format.
Abstract: A single sheet is transported from a tray where sheets are stored to the table of a coordinate plotter by a movable device which lifts the sheet by suction from the tray and moves the attached sheet part way to a final position on the table. The sheet is released; the device retreats and then again lifts the same sheet by suction and transports the sheet to a final position on the table.
Abstract: An original divided in a plurality of regions is photoelectrically scanned and its reproduction is then recorded. Signals from a plurality of photodetectors arranged to detect each desired common region of the original in accordance with a signal representing its corresponding scanning position and its corresponding signal stored in advance in a memory device are selectively switched over and output to the recording side in accordance with sequential scanning of the plurality of regions in the original. The above method assures high productivity without need for special skill or expensive facilities.
Abstract: A method for obtaining a desired picture with high quality by scanning a rotating recording drum by a scanning light beam, which produces images on the drum through a projection lens, receiving the said images being reflected from the drum through the projection lens on an image sensor, detecting variations of diameter of the drum per each rotation from variations of intensity of light of the images, whereby position of the projection lens being movable along the normal direction of the drum is automatically adjusted against machining errors of the drum diameter and variations of the said diameter caused by changes of its surrounding or any other reasons, temperature, so that variations of imaging points of the scanning light beam can always be within a range of depth of a focus of the projection lens.
Abstract: A picture image scanning and reproducing method capable of operating a picture image processing unit at a constant system clock even when the data transferring speed for digital picture image signals obtained by scanning an original or the data transferring speed in a picture image recording unit is changed, as well as a system suitable for use in the practice of the above method. Signals can be processed at a constant throughput owing to the provision of frequency changing means respectively at both input and output sides of the picture image processing unit. A single system clock is input to each of various processing circuits, where the system clock is converted to a desired frequency so as to operate the corresponding processing circuit. Therefore, the present invention has materialized simplification of the circuit structure and reduction of the manufacturing cost.
Abstract: While characters are being displayed on a graphic display device according to commands from a computer, the light emitting intensity of a desired pixel is controlled by outputting only commands related to the light emitting intensity control from said computer. This is done by providing, associated with the graphic display device, for memorizing a group of numerical values corresponding to desired changes of light emitting intensity of a desired pixel belonging to a character or a graphic display displayed on the graphic display device, or by providing for obtaining numerical values corrsponding to the light emitting intensity changes. A device for practicing this method is also disclosed.
Abstract: Disclosed herein is a coordinate plotter with at least one automatic punching device, adapted to draw a desired picture by shifting a table and an autographic head, which is directed downwardly from a point right above the table, in the X-axis and Y-axis directions respectively. The at least one automatic punching device is provided in adjacent to a side edge parallel to the moving direction of the table and at a height equal to the upper surface of the table so as to form a positioning hole through a sheet laid on the table for drawing the desired picture thereon. The specification also discloses a method and apparatus for conveying sheets to the coordinate plotter.
Abstract: Disclosed is a method of using a buffer memory for storing a plurality of picture signals wherein picture signals of more than one types are stored in an alternating manner into a buffer memory and the stored picture signals are read out at predetermined address intervals so that the picture signal of a desired type may be picked out for subsequent use for each of the types. According to the method of this invention, the number of the types of the picture signals may be arbitrary since the memory device does not have to be divided into a plurality of blocks, and all the picture signals may be stored, substantially as they are picked up at a scanning head, in a buffer memory. To eliminate any time lag in the exact timing of picking up the picture signals of various types, a sample and hold circuit may be conveniently used.
Abstract: An asynchronous color separation system comprises a plurality of picture input units for supplying a set of color-separated picture signals corresponding respectively to color components to be subjected to color tone controls. A scanner data processor is provided for selectively receiving the set of color-separated picture signals from the plurality of picture input units and contains at least one set of look-up tables adapted to carry out desired color tone controls on the thus-received set of color-separated picture signals. A plurality of picture reproducing units includes at least one central processing unit. The central processing unit selectively controls the distribution of color separated picture signals from the scanner data processor to the various reproducing units in accordance with a predetermined order of preference. The reproducing units provide a reproduced permanent or temporary picture.
Abstract: Transfer of data can be controlled by connecting operation modules, which share a single-circuit data bus line, together by a single-circuit handshake line, allocating the timing of use of the data bus line by time-division techniques in synchronization with a handshake clock when sending out and accepting data among the operation modules, and forming a gate circuit via the handshake line between two of the operation modules, whereby to detect coincidence of a data send ready state and a data accept ready state in the two of the operation modules. The above controlling method permits use of fewer control line, simple pipeline processing, shorter standing time, etc.
Abstract: A photographic apparatus comprises a photoelectric camera arranged movably at the position of the lens of the photographic apparatus and a picture signal processing circuit connected electrically with the photoelectric camera and adapted to process picture signals, which have been input to the photoelectric camera, so as to measure given exposure conditions. It is possible to determine exposure conditions with good accuracy by measuring accurately variations in illumination conditions. The present invention allows highly-accurate measurements under preferred conditions.
Abstract: A machine and method of picture reproduction wherein a picture on a first cylinder is scanned and the signals produced are color-corrected, digitalized, and fed into a memory. Then the stored values are read out from the memory at the same frequency as they were put in, and are converted to analog form and used to record a picture on a light-sensitive film mounted on a second cylinder. Magnification or reduction is provided by controlling the addresses of the read-out values so that some values are either read out several times, or skipped.
Abstract: A method for subdividing the addresses of a multi-dimensional memory, having n-dimensional addresses defined over a logical address space which is divided into a plurality of unit divisions. Each unit division has several vertices each of which is addressable by one of the n-dimensional addresses. Each one of the addresses associated with a given unit division is divided and allocated to a distinct memory bank so that no two addresses of the same unit division are in the same memory bank. There are a total of 2.sup.n memory banks, each having independent data lines and address lines. The original n-dimensional address of the vertices determines to which memory bank the vertex address will be allocated. Moreover, the n-dimensional address also determines the address of the given vertex within the memory bank to which it has been allocated.
Abstract: Disclosed are method and device for automatically controlling the time period of photographic development for each specific combination of a photographic developer and a photosensitive material for the purpose of obtaining a substantially same or optimum photographic development result at various temperatures. Through utilization of the knowledge of a certain relation between the time period of photographic development and the temperature of the photographic developer which will produce a same photographic development result, the time period of photographic development is adjusted, for instance, by changing the speed of a conveyor carrying the photosensitive material through the photographic developer. The mentioned relationship may not be always expressed by a linear function with a desired accuracy but may be approximated with a desired accuracy by means of various mathematical functions such as polynomials and irrational functions.
Abstract: To determine the coordinate values of quantized sequential dots on a line segment connecting desired two points (x.sub.1, y.sub.1), (x.sub.2, y.sub.2) in a two-dimensional quantized coordinate system, line segment coordinates are processed at high speed by providing counters, each of which employs one quantum unit as the reference clock signal thereof, respectively for the x-axis and y-axis, controlling reference clock signals, which are to be input to the counters, in accordance with the information on the two points (x.sub.1, y.sub.1), (x.sub.2, y.sub.2), and employing output values of the counters as coordinate values of the quantized sequential dots. The above method features high-speed processing operations.
Abstract: A simple proofing apparatus which provides a proof by preparing a synthetic image from proofreading films of each color which are colored with cyan, yellow, magenta, black etc., corresponding to original plates for each color separation films, comprising a table for mounting a ground paper or a proofreading film thereon, a positioning pin adapted to engage with a punch hole formed through said proofreading film for positioning said ground paper or said proofreading film on said table, an absorbing groove provided on an upper surface of said table for fixedly adsorbing said ground paper or said proofreading film on said table, and a heating means adapted to heat said proofreading film mounted on said table and move on said table.
Abstract: A desired picture or pattern such as a wiring pattern may be recorded on a recording surface bearing a photosensitive material coated thereon by sweeping a light beam obtained from a light beam source and then scanning, with the thus-swept light beam, the recording surface. Sweep position pulse signals are obtained by branching out the thus-swept light beam and detecting same with a photosensor. The light beam output from the light beam source is modulated in accordance with the sweep position pulse signals. The levels of the sweep position pulse signals are changed to a predetermined constant level in accordance with the types of their corresponding picture signals, in other words, the sweep position pulse signals are attenuated where they correspond to picture-bearing portions of the picture or pattern or are amplified where they correspond to picture-free portions of the picture or pattern, so that the synchronization between the sweeping speed and the picture signal reading-out speed is ensured.
Abstract: A method for automatically correcting variations in intensity of laser beams output from a projection lens, which variations occur due to variations of a spectrum pattern of optical fibers when their tip portions move, by paying attention to each of focal points of an image sensor which focal points correspond respectively to the optical fibers, comparing the sum of signal outputs from regions of the image sensor, which regions correspond respectively to the laser beams, with a signal output corresponding to a standard beam intensity required for the exposure of a photosensitive material to determine a value to be corrected, and then feeding the value back to acousto-optic light modulators so as to change the modulation efficienties of the acousto-optic light modulators.
Abstract: A conveyor mechanism suitable for a thin plate, especially for uniformly drying a photoresist coated on a wafer without smearing its rear surface with the photoresist has at least four grooves formed laterally in the upper surface of a table, two of the grooves extending from one side of the table and the other two from the opposite side. A movable frame is provided with its legs located outside the sides of the table. The legs are each provided with two fingers, the inner ends of which are allowed to downwardly enter the grooves so as to mount the thin plate on the table. They are kept aside while the thin plate is treated on the table. After completion of the treatment, the fingers are swung back into the grooves and are then moved upwards, thereby lifting the thus-treated thin plate from the table. Then, the frame is caused to move so that the thin plate is carried away.