Abstract: A color separation circuit arrangment for separating color components from an image sensor that outputs two kinds of photoelectric conversion signals with different color components for each horizontal scanning line. Color separation is carried out by causing color separation arithmetic means to perform color separation by supplying the arithmetic means with two kinds of photoelectric conversion signals for read unit regions that are formed adjacently on the same horizontal scanning line, output by the image sensors. The color separation apparatus includes signal averaging means for evaluating the average of a plurality of photoelectric conversion signals of at least one kind out of the two kinds of photoelectric conversion signals from the read unit regions provided adjacently on the same horizontal scanning line, and supplying the result of the evaluation to the color separation arithmetic means.

Abstract: An arrangement for detecting movement in a picture displayed on a television display. Y/C color separation detects movement in a displayed picture by generating a first movement detection signal with respect to luminance, a second movement detection signal with respect to luminance and a movement detection signal with respect to color. The first movement detection signal with respect to luminance represents the difference between a luminance signal extracted by Y/C separation in a first frame and a luminance signal extracted by Y/C separation in a second, adjacent frame. The second movement detection signal serves as an auxiliary detection signal, and indicates any leaking of the color signal into the luminance signal after Y/C separation. The auxiliary signal, which indicates the leakage of any color signal into the luminance signal, is able to minimize erroneous detection of movement due to leakage of the color signal.

Abstract: A keyed type synchronization wave detecting circuit comprises a phase wave detector for synchronizing and wave detecting a composite video signal responsive to a signal for wave detection. A synchronizing signal generator provides a horizontal synchronizing signal controlled by the frequency of a horizontal synchronizing signal of the composite video signal. A keying pulse generator provides a keying pulse signal from the synchronizing signal of the synchronizing signal generator. A phase controller outputs a phase difference signal in accordance with the difference in phase between the signal for wave detection and a carrier of the composite video signal such that the phase difference approaches a predetermined level, the phase controller having a comparator for performing a keying outputting operation of the phase difference signal by the input of the keying pulse signal, and a filter for removing the high frequency component of the phase difference signal and forming a control signal.

Abstract: An optical pickup for picking up signals from an optical disk comprises a hologram to split a laser beam emitted from a laser light source into one 0th diffraction light beam and two 1st diffraction light beams, and also to diffract return light beams reflected from the optical disk with two grating areas formed on one surface thereof. The diffracted light beams from the hologram are detected by a 6-piece-divided photodetector. The number of parts included in the system has been greatly reduced.

Abstract: A window system synchronizing protective circuit. A window forming circuit forming windows having a predetermined position which detect the forthcoming synchronizing signal in accordance with a counted value of bit clock pulses produced by a bit clock. The window forming circuit forms a corresponding number of windows to a predetermined number of bit clock pulses before and after detecting a synchronizing signal. The window forming circuit generates a window signal. A protective synchronizing circuit which has the detected synchronizing signal and the window signal generates a protective signal which has a phasic relation to the detected synchronizing signal. If no synchronizing signal has been detected in the windows the protective synchronizing signal is output. If the synchronizing signal has not been detected after a predetermined period a window reset circuit changes the position of the windows.

Abstract: A photodetector for a hologram-type optical head comprises, as a basic constitution, 6-piece-divided photodiodes. In order to prevent the photodetector from receiving the influence of wavelength variation of a laser diode, that is, spot deviations, one photodiode is divided into two small elements and the spot deviation is detected by utilizing the difference between outputs of the two small elements.

Abstract: A function inspection system having a plurality of inspection units for inspecting the operation of an electronic appliance. The system includes a system of traversers which convey the electronic appliance to different inspection units. The inspection units inspect different functions of the electronic appliance. The traversers are controlled by a controller. The electronic appliance is a printed circuit board in the preferred embodiments.

Abstract: A door operating mechanism for opening and closing a door with respect to a vertical opening of a case includes a hinge structure for selectively connecting an upper end of the door to the case in a hinged manner so as to guide a pivotal movement of the door between a vertically closed position and a horizontally extended open position where the door is extended outwardly from the case. There is provided a guide structure for guiding the horizontal movement of the door between the horizontal extended open position and a horizontal retracted open position where the door is received in the case. Thus, the door can be suitably received in the case, so that the opened door will not be obstructive.

Abstract: In a reproduction system for use in reproducing a still image from a sequence of predictive error signals which is read out of a memory and which is preliminarily processed into a sequence of preliminary processed signals, an intermediate circuit interrupts the preliminary processed signals in response to an external command signal. In the intermediate circuit, the external command signal is resampled by a sequence of frame pulses in a resampling circuit into a resampled signal so as to close a gate circuit. No predictive error signal is sent to an adder circuit during absence of the gate circuit. An identical error signal is repeatedly produced as a sequence of reproduced signals to reproduce the still image.

Abstract: A Magneto-Optical disk having a transparent substrate, a Magneto-Optical film formed on the transparent substrate and a high corrosion-resistant film laminated on the Magneto-Optical film. The Magneto-Optical film is made of a perpendicular magnetic anisotropy material, the corrosion-resistant film is made of a metal or metal alloy. A foundation protecting layer may be formed on the transparent substrate with the Magneto-Optical film and the corrosion resistant film formed thereon. The Magneto-Optical film may be a plurality of films laminated alternately with a plurality of corrosion-resistant films.

Abstract: The present invention provides a video signal reproducing apparatus in which a set-up level of a video signal can be cancelled and the contrast of the signal maintained to obtain an accurately reproduced video signal. The present invention includes a set-up period indication circuit for generating a set-up period indication signal if a video signal with a set-up level exists, a subtraction circuit for subtracting a predetermined set-up level from the video signal containing the set-up level and an amplifier circuit for amplifying the subtracted video signal to a predetermined amplitude so that an accurately reproduced video signal is obtained.

Abstract: In an image processing system for use in processing a sequence of image signals carrying a moving image, the image signal sequence is divided into a sequence of partial image signals each of which carries a scene subsequence defined by scene changes. A background signal generator determines a background portion of the moving image by monitoring a whole of each partial image signal and produces a background signal. The background signal is coded by a coder prior to a sequence of error signals resulting from predictive coding of each partial signal. During prediction of the background signal, the error signals may be rendered to zero in the coder. The background signal may be either determined at every picture element or at every block composed of a plurality of picture elements.

Abstract: A navigation device which is mounted in a vehicle and in which the present location of the vehicle is presumed form the outputs from a direction sensor and movement distance sensor so that the presumed present location is displayed if it is coincident with a road map. In the navigation device, a present location presuming means is provided so that if there are a plurality of presumed present locations coincident with the road map, the locations are handled as actual present location candidates to serve as bases for the presumption of the present location of the vehicle until the propriety of the presumed present locations for actuality is negated by later presumption.

Abstract: A signal synchronizing system comprising first circuit having a plurality of sync signals, second circuit having a plurality of sync signals corresponding to the sync signals of the first circuit, respectively, and a synchronizing control circuit which synchronizes output signals of the second circuit with output signals of the first circuit. The synchronizing control circuit inputs the plurality of sync signals of each of the first and second circuits, and outputs a control signal to the second circuit.

Abstract: A color masking circuit and a color printer incorporating the color masking circuit which performs color masking processing upon color density data to indicate the density of the color picture elements. The color masking circuit includes a matrix coefficient table for holding predetermined matrix coefficients which are used in the masking of the inputted color density data. A matrix coefficient selector selects predetermined matrix coefficients from the matrix coefficient table according to the color density data correction to be performed. Multiplication and adder circuits are also provided for calculating the corrected color density data in accordance with the selected matrix coefficients. However, the matrix coefficients may be taken directly from a look-up table by addressing the table with the color density data to be corrected.

Abstract: A video ghost signal canceling circuit which has an adding means for adding a ghost canceling signal to a digital video signal thereby canceling ghost components of the video signal, and a ghost canceling signal generation means for generating a ghost canceling signal in accordance with an output of the adding means. The ghost canceling signal generation means of the present invention comprises a variable delay filter means composed by a parallel arrangement of a plurality of variable delay lines a delay amount of which is controllable from the outside, and a plurality of transversal filters with a coefficient which is controllable, wherein each transversal filter is connected in series to corresponding variable delay line, and the adding means for adding all outputs of the variable delay filter means and for outputting a ghost canceling signal.

Abstract: A folding door, containable in a cabinet, includes a door body foldable outwardly of the cabinet. A slide member is slidable along an inner surface of the cabinet toward and away from a front of the cabinet. The door body is angularly movably connected at its proximal end portion to the slide member by a hinge. A lock member is mounted on the proximal end portion of the door body so as to be angularly movable about an axis disposed at a central portion of the lock member. The lock member has an engaging portion extending obliquely toward the inner surface of the cabinet, and a contact portion extending toward the distal end of the door body. A urging member urges the lock member to be angularly moved in a direction to abut the engaging portion against the inner surface of the cabinet. A retainer member is provided on the inner surface of the cabinet for retaining the engaging portion of the lock member.

Abstract: A ghost canceling apparatus provided with a reference waveform Fourier coefficient holding unit in which a normal ghost detection unit holds a Fourier coefficient produced by Fourier transforming a reference waveform; a nearby region Fourier transform unit for Fourier-transforming a nearby region of a reference waveform extracted from the received television signal and a normal Fourier transform unit for Fourier transforming a normal region of the reference waveform extracted from the received television signal; a calculation unit for dividing the output from the normal region Fourier transform unit by the output from the nearby region Fourier transform unit and then for multiplying a Fourier coefficient of the reference waveform Fourier coefficient holding unit; a reverse Fourier transform unit for reverse Fourier transforming the output of the calculation unit; a tap gain supplying unit for supplying the dummy normal ghost producing unit with the output of the reverse Fourier transform unit as a tap gain of

Abstract: The present invention provides a composite picture information system that is able to compose pictures from digital data from separate sources. An extended (main) information processor (40) is mechanically configured so that an auxiliary information processor (10) can be docked with it. The extended and auxiliary information processors are each configured so that they can be independently operated and can each provide as an output an analog video signal defining a picture. When the information processors are docked, the auxiliary information processor stops generating its own video signal. Instead, it reads out digital display data based on a synchronizing signal provided by an extended (main) information processor, and provides its digital data to the extended (main) information processor.

Abstract: In a recording system, a sequence of image signals obtained from a sequence of images are used to generate and record a sequence of recordable signals on a read only memory. Efficient coding of the received sequence of image signals is carried out through the use of a given parameter which is adaptively and dynamically changed, preferably manually, through a parameter controller acting as the interactive device. The image signals are repeatedly subjected to the efficient coding process. The process uses a sequence of predictive signals to produce coded signals. The predictive signals are displayed on a monitor display device to be monitored by an operator. The operator changes the attributes of the parameter until an optimum image is obtained. The optimum parameter is stored on a magnetic tape.