Abstract: An image signal processing device according to the present invention is a device for processing an image signal. The device is provided with a first differential amplifier for receiving a color-difference signal and a reference signal, a second differential amplifier for receiving a burst flag signal and the reference signal, and a modulator for receiving together signals outputted from the first and second differential amplifiers and modulating the received signals by using a carrier signal. Accordingly, it is possible to add the burst flag signal to the color-difference signal and modulate the obtained sum signal by means of a simple arrangement and without the need for complicated adjustment.

Abstract: An electronic camera having an image sensor responsive to a preliminary exposure for producing an output signal, a computing circuit for computing a proper exposure condition on the basis of the signal, and a compensating circuit for compensating the exposure value in accordance with the proper exposure condition is provided with a compensation prohibiting circuit for prohibiting the exposure compensation by the preliminary exposure by taking into account the object condition and the exposure mode.

Abstract: A camera-integrated video recorder system having a remote-control unit arranged to be detachably mountable thereon is provided with a switching circuit, which is arranged to switch the operation mode of the system between a camera shooting mode and a video recorder mode in association with an operation of mounting or demounting the remote-control unit on or from the camera body of the system.

Abstract: In a white balance adjusting apparatus, information about picture portions whose color components cannot be detected under normal conditions, e.g., picture portions whose brightness level is excessively high, or excessively low, are suppressed from white balance controlling data, so that data required for the white balance control can be correctly obtained without using small windows which a frame of picture is subdivided into. For this purpose, signals of predetermined window portions within one frame of picture are integrated by integration circuits, while weighting the signals by multiplication factor generating means based on brightness level, and then a white balance control is carried out by using an integrated value.

Abstract: A camera system, which control the function of a lens assembly on the basis of control information serially transmitted from a camera assembly, is provided with a communication circuit which effects communication of the control information and which is capable of changing the number of communication words associated with the communication, and a circuit for transmitting, if the number of communication words is changed, the changed number of communication words from the camera assembly to the lens assembly.

Abstract: In a recording or reproducing apparatus arranged to carry out recording or reproduction of a signal while keeping a magnetic tape wrapped around a rotary head drum equipped with a head, the upper cylinder of the rotary head drum is provided with a rotor core which constitutes part of a rotary transformer for carrying out signal exchange between the head and an external circuit. An elastically deformable contact is held by a holder secured to the rotor core, and includes a plurality of conductive portions, each conducting electricity between opposed faces of the elastically deformable contact, and a cutout defined in a middle portion thereof. The elastically deformable contact is pressed from opposed sides between a conductive pattern connected to the magnetic head and a conductive pattern connected to the rotor core so that it can be brought into pressure contact with both of the conductive patterns, thereby providing electrical conduction between the head and the rotor core.

Abstract: A magnetic alloy which contains Fe; 1-15 at. %, at least one element selected from the group consisting of Ti, Zr, Hf, V, Nb, Ta, Mo and W; 1-10 at. %, at least one element selected from among platinum group elements; 0.1-5 at. %, at least one element selected from the group consisting of Cu, Ag, Au and Cd; 1-20 at. %, at least two elements selected from the group consisting of C, O, B and N; and 3-10 at. %, Al.

Abstract: A power source device to and from which an interchangeable first device can be attached and detached and operating in such a manner that when the first device is attached and when the first device is judged to be normally operating, electric power is supplied at all times to the first device, while when the first device is not attached, or when, though the first device is attached, the first device is judged not to be normally operating, electric power is supplied in a predetermined periodicity to the first device.

Abstract: A video camera apparatus for a video conference is arranged to detect the zoom level of a zoom lens by a zoom level detecting circuit and to control a motor control circuit according to the result of detection in such a way as to lower the speed of a panning or tilting operation on a video camera accordingly as the position of the zoom lens shifts from a wide-angle position to a telephoto position. In panning or tilting the video camera in a zoom-in state, this arrangement makes the panning or tilting speed lower than the speed of panning or tilting performed in a zoom-back state, so that the movement of objects on a picture displayed on a monitor can be effectively moderated to make the details of the display easily discernible without any unpleasant impression. The arrangement thus facilitates the operation on the video camera.

Abstract: A stabilized disconnection switch including a switching device, a housing, a control ball movably supported in the housing to control the switching device, a shell hangably supported by the housing opposite the switching device and noncontiguously circumscribing the control ball in a rest position of the stabilized disconnection switch, whereby, during a tilting motion of the housing, a sudden, complete switching of the switching device occurs upon movement of the shell upon contact of the control ball with the shell.

Abstract: A tape transport system control device for controlling a tape transport system in which a tape payed out from a supply-side reel driven by a supply-side reel motor travels through a predetermined path to be taken up on a takeup-side reel driven by a takeup-side reel motor, includes a tape speed control servoloop for the takeup-side reel motor, a tape tension control servoloop for the supply-side reel motor, a detecting part arranged to detect a difference between a tape tension obtained on the side of the supply-side reel and a tape tension obtained on the side of the takeup-side reel, and a loop arranged to feed the detected difference of tension forward to the supply-side reel motor.

Abstract: A method for scrolling, at a desired rate and in a given direction, a graphic character on a display having a predetermined number of actual scan lines and a vertical blanking interval occurring between successive display of all the actual horizontal scan lines of the display, involves the creation of fractional scan lines between successive vertical blanking intervals, the identification of leading and trailing edges of the character and the selective changing of the color or shading of pixels of the leading and trailing edges to effect scolling of the character.

Abstract: An image processing apparatus for performing digital signal processing on an input color video signal is provided with a delay circuit for cancelling a time difference which occurs between a luminance signal component and a chrominance signal component of the input color video signal in accordance with a difference between a filtering processing for the luminance signal component and a filtering processing for the chrominance signal component.

Abstract: Apparatus for non-destructive examination of a plate for defects existing in one of both of opposed first and second surfaces thereof includes a rotatable support platform, an eddy current coil structure for inducing eddy currrents in the plate located at a first location in the platform, a first magnetic flux generator disposed at a second location in the platform, the second location being opposite the first location on a line extending from the first location through the platform center. A drive unit rotates the platform relative to the plate.

Abstract: In an electronic still camera including an image pickup element having color filters which are changed at one-pixel periods in a vertical direction, and the memory outputs from the image pickup elements are temporarily stored in a memory and are read out again to obtain frame data.

Abstract: In a still image pickup apparatus of the kind arranged to start an exposure by causing an image sensor to begin an accumulating action and to end the exposure by using a light-shielding member having a poor responsivity, the exposure time is arranged to be controlled by allowing the accumulating action of the image sensor to begin after the light-shielding member starts the light-shielding action for terminating the exposure time. This arrangement enables the apparatus to perform a high-speed shutter operation irrespectively of the responsivity of the light-shielding member.

Abstract: An image signal processing device according to this invention is a device for processing an image signal. The device is arranged to input digital data corresponding to two kinds of color-difference signals in synchronism with a clock signal corresponding to a data rate of the digital data, reconstruct the inputted digital data corresponding to the two kinds of color-difference signals into digital data synchronized with a clock signal having a frequency which is an integer multiple of a color subcarrier frequency, and form digital data corresponding to a chrominance signal by using the reconstructed digital data corresponding to the two kinds of color-difference signals. Accordingly, it is possible to stably encode the two kinds of color-difference signals into the carrier chrominance signal by means of a simple construction without degrading the color-difference signals.

Abstract: An image pickup apparatus comprises a memory to store an image signal generated from an image pickup device; a switching circuit to switch an output of the image pickup device and an output of the memory; a vibration sensor to detect the vibration of the apparatus main body; and a control circuit to allow the fetch of the image signal generated from the image pickup device into the memory when the vibration detected by the vibration sensor is equal to or less than a predetermined value.

Abstract: An electronic article surveillance tag deactivation system includes a transmitter, a receiver, a deactivation coil and a controller (microprocessor) for establishing time periods for operation of the transmitter, the receiver and the deactivation coil, and for selectively varying detection sensitivity of the receiver. Detection of a tag prior to deactivation is effected with the receiver at low sensitivity and redetection of the tag subsequent to deactivation is effected with the receiver at high sensitivity.

Abstract: A ribbon-shaped strip of an amorphous magnetic alloy is heat treated, while applying a transverse saturating magnetic field. The treated strip is used in a marker for a pulsed-interrogation electronic article surveillance system. A preferred material for the strip is formed of iron, cobalt, silicon and boron with the proportion of cobalt exceeding 30% by atomic percent.