Abstract: Color display apparatus including a color display tube in which a single electron beam is scanned in television raster fashion across the input surface of an electron multiplier (16) adjacent a screen (14) comprising a repeating pattern of three different color phosphors, and in which deflection of the beam emanating from the multiplier onto respective ones of the three phosphors is controlled by color selection electrodes (38, 40) adjacent output apertures of the multiplier. The apparatus includes driving circuitry using line stores (64) which performs line scanning at three times the standard rate and controls switching of the color selection electrodes so as to display in turn the three color components of each standard picture line during the standard line period. Vertical scanning may be effected continuously or in stepped fashion.

Abstract: A method for automatically setting signal processing conditions for respective colors in an image input/output system where a color original is read for color separation by an image input device and input density signals from the input device are then inputted to a signal processing section to be processed in gradation for each color. Then, the process density signals are inputted to an image output device such that the conditions of the original in the form of optional parameters are selected from a set of options and characteristic point parameters which are selected by designating characteristic points on the original to be processed are selected as auxiliary input parameters. Prescanned data from the image input device is processed together with the auxiliary input parameters so as to thereby determine the processing conditions for respective color output density signals.

Abstract: A solid image pickup element is adhesively attached via a spacer to the light leaving end of a color separation prism which is employed in a television camera to separate the light of an object from an optical lens system into a plurality of wavelength band components. The spacer has at least one surface to be engaged with either the color separation prism or the solid image pickup element, and the engagement surface is inclined relative to the light leaving optical axis of the prism. Therefore, a single spacer can be satisfactorily utilized for different clearances between the prism and the solid image pickup element.

Abstract: Color adjustment factors are set according to the color separation signals of an original picture and factors for each separation signal set equal to the absolute value of the sum of the factors corresponding to the other separation signals but of opposite polarity adjustment factors. The color separation signals and the color adjustment data are added to the output densities which are provided before color adjustment so that the color adjustment can be achieved.

Abstract: In an apparatus using a printer mechanism for reading a document wound around a platen of a printer, when a document is read, and ink ribbon cassette mounted on a carriage of the printer for printing is replaced with a cassette case having a reading section therein, while the printing head remains fixed on the carriage. The reading section is located such that a lens barrel mounting an image sensor thereon is positioned for reading the document without being interfered with by the fixed printing head.

Abstract: A hard copy system regulatively processes a video signal with a settable regulatory parameter to produce regulated picture information which is reproducible as a hard copy. A multiplexer receives a plurality of video signals having different signal forms to selectively apply one of the video signals to the hard copy system. A memory stores a plurality of different regulatory parameters assigned to the respective video signals and determined according to the different signal forms thereof so as to optimize the regulative processing thereof. A controller operates when a selected video signal is processed for retrieving from the memory a regulatory parameter assigned to the selected video signal to set the retrieved regulatory parameter to thereby enable the hard copy system to produce optimally regulated picture information.

Abstract: A color image processing apparatus has a CCD shift register for reading a color image in accordance with reference clock pulses, a pre-sample-hold circuit for performing color separation of serial color signals and producing parallel color signal in accordance with sample clock pulses, post-sample-hold circuits, and a matrix circuit for correcting the color signals. The CCD shift register, the pre-sample-hold circuit and the post-sample-hold circuits can be integrated as a line sensor. Serial color signals can be processed at high speed and at low cost.

Abstract: A method of making a print of a composite image which includes at least a figure image and an image of letters, comprises the steps of providing the composite image, displaying the same on a CRT display device, and exposing a printing paper to the displayed composite image. For providing the composite image, the figure image is formed by a still camera on a photosensitive material which can be preserved semipermanently. When making the print, the image is picked up from the photosensitive material by an image signal forming device such as a TV camera so as to be composed with the image of the letters.

Abstract: A MOS solid-state imaging device comprises photo-electric conversion elements (pixels) two-dimensionally arranged in row and column directions, horizontal signal lines arranged one for each horizontal row of pixels, and switches for connecting the vertically adjacent pixels. The switches are parallelly controlled by vertical gate pulses. Thus, mixed signals of the upper and lower pixels are sequentially and horizontally scanned and signals are alternately read from the two horizontal signal lines.

Abstract: Apparatus is disclosed for processing an incoming video signal having line sequential R-Y and B-Y color difference signals at respective different DC offsets. The apparatus includes first and second memory circuits for receiving the incoming signal and for respective storage of the offsets of the R-Y and B-Y color difference signals. A computing circuit is operative selectively to subtract the contents of the first and second memory circuits from the incoming signal line sequence parts to provide offset-free versions thereof.

Abstract: A device and method for formation of images with flat video screens by a line- and column-addressed point matrix. Field point matrix uses field emission micro tips as fluorescent screen portions being connected in columns. An electric field is applied between each tip and the fluorescent screen portion corresponding thereto, such that the respective tip emits electrons and a light spot is formed on the video screen, the intensity of which depends upon the applied voltage for attracting electrons. Emission from other tips is blocked by applying a negative voltage to the other columns. Thus, by successive switchings, successive luminous spots are formed on the video screen as desired.

Abstract: A scanner system for detecting images on a surface and generating an electronic representation thereof for transmission to an image processing system, including at least first, second and third rows of n sensors generating charges representative of detected light of preselected wavelengths during an integration period of a selected duration. Each row of sensors is comprised of substantially similar construction, and suitable for detection of a preselected wavelength, Sensors may be chosen from a sensor type which facilitates transfer of charges through the sensor.

Abstract: Selecting proper half-tone screen systems for use with raster scanned images ensures the absence of Moire effects when using two or more color separations. Mathematical analysis provides an ensemble of screen patterns which are based on an odd/even relationship between the number of screen "lines" per repeat cell distance for combinations of screens. From this ensemble a critical selection is made of suitable screen parameters for the chosen font(s) using computer integration over repeat cell areas to show which chosen screens give invariance of white fraction with off-set distance in the two directions (horizontal and vertical). This comparison is carried out between all pairs of the required number of screens to be used.

Abstract: A color image pickup device comprises an image pickup tube, a color stripe filter comprising a plurality of stripes, a circuit for obtaining a color multiplexed signal by sampling color information from the color stripe filter and multiplexing color components obtained by the sampling in a direction perpendicular to the scanning direction, and a circuit for producing a color demodulated signal by subjecting the color multiplexed signal to a color demodulation. The color stripe filter may be arranged on the image pickup tube so that a longitudinal direction of the stripes is approximately parallel to a scanning direction of the image pickup tube, and the sampling may be performed at sampling points which are deviated in the scanning direction for each scanning line.

Abstract: A color image pickup device comprises an image pickup tube, a color stripe filter comprising a plurality of stripes, a circuit for obtaining a color multiplexed signal by multiplexing color components obtained via the color stripe filter in a direction perpendicular to a scanning direction of the image pickup tube, and a circuit for producing a color demodulated signal by subjecting the color multiplexed signal to a color demodulation. The color stripe filter is arranged on the image pickup tube so that a longitudinal direction of the stripes thereof is substantially parallel to the scanning direction.

Abstract: A color image pickup device comprises an image pickup tube, a color stripe filter comprising a plurality of stripe groups each having a plurality of stripes, and a circuit for obtaining a color multiplexed signal by multiplexing color components obtained via the color stripe filter in a direction perpendicular to the scanning direction for every one stripe group. The color stripe filter is arranged on the image pickup tube so that a longitudinal direction of the stripes of the color stripe filter is substantially parallel to a scanning direction of the image pickup tube. A color demodulated signal and/or a luminance signal are/is produced from the color multiplexed signal.

Abstract: The circuit has a gain factor characteristic curve with various breakpoints below which and above which a larger or a smaller gain factor, respectively, is present. Both the breakpoints and the gain factors above these points are variable dependent on the magnitude of the input signal. For picture signal processing for which the signal values below the breakpoints reach the output signal in an optimum way and above which an optimum adaptive white signal compression is present, the circuit is formed with a signal multiplier circuit (2) for multiplying a picture voltage (VI) and a first direct voltage (Va) by a control voltage (VR), and with a signal minimum detection circuit (4) for passing the lowest voltage value when the said picture voltage (VI) is applied relative to the voltage originating from the signal multiplier circuit (2) and relative to a second direct voltage (Vb), with the control voltage (VR) being derived from the voltage value that has been passed.

Abstract: Unitary apparatus for reading and/or printing a recording medium incorporates a read unit for optically scanning the recording medium and a print unit in the form of an ink jet printer for printing on the same or a subsequent area of recording medium. The recording medium is conducted in a planar condition through a path overlying the read unit and the print unit, both of which are mounted in fixed relation on a printer carriage for transverse movement relative to the printing medium. In this way line-by-line scanning of the recording medium or line-by-line printing of the recording medium can occur simultaneously with paper transport. The scanning and printing units may be either single color units, or may be multicolor scanning and multicolor printing units.

Abstract: The present invention is for separating luminance signal Y and color difference signal C from the composite color television signal and includes a frame memory for storing the composite color television signal, a motion detector for detecting motion of a picture image on the basis of the signal read out from the frame memory, a correlation detector for detecting the magnitude of vertical correlation of pictures on the basis of the signal read out from the frame memory, a vertical-axis filter for performing YC-signal separation through a filtering operation in the vertical-axis direction, a time-axis filter for performing a filtering operation in the time-axis direction, a two-dimensional filter for performing YC-signal separation through a filtering operation in both the horizontal and vertical directions, and a mixer for mixing the outputs of the three filters in accordance with the magnitude of motion and the magnitude of vertical correlation.

Abstract: Special effects are produced on video images by means of a method of geometrical transformation which can involve a translation, a rotation, an affine transformation or an effect of perspective. The method consists:in locating each point of the initial image by means of coordinates (X, Y, O) in a cartesian reference frame designated as a movable reference frame and related to the initial image;in representing each point of the initial image by a binary word;in storing the initial image in a storage device having two read address inputs and one data output, the function of the device being to deliver a binary word corresponding to the point with coordinates (X, Y, O) in the initial image when read address values X and Y are applied respectively to the two inputs:in causing each point of the transformed image resulting from an initial-image transformation to be located by means of coordinates (X.sub.3, Y.sub.