Abstract: The invention contemplates scanning-microscope display of plural observed parameters of an examined specimen, where the parameters derive from flying-spot light-exposure of the specimen, and where at least one of the observed parameters is outside the wavelength range of the flying-spot. In some illustrative embodiments, at least one of the observed parameters is sensed by a detector which uses the same scanning optics as the flying-spot, and in other embodiments other techniques of synchronization are involved. The disclosed embodiments also provide for selective arrest of scanning to enable such factors as fading fluorescence and spectrum analysis to be ascertained strictly for a surface occlusion, impurity or other anomaly of interest.

Abstract: Optical probe (21) for simultaneously providing two images along independent lines-of-sight that correspond to front and side views in a single camera model visual system. An optical probe comprises a first pitch prism (24) and a second pitch prism (28). The pitch prisms have respective first and second apparent entrance pupils that are external to each prism and common to both prisms at a particular location (32). All motion of the optical probe is constrained to rotations about the location (32) of the first and second apparent entrance pupils.

Abstract: Cooling means are disclosed for cooling the face panel of a projection cathode ray tube. The cooling means comprises a housing having a rearwardly extending flange with a forwardly tapering section configured to nest with the forwardly tapering section of the face panel when mated therewith. The housing has a window section for framing and passing the image formed on a cathodoluminescent screen on the inner surface of the face panel. Spacing means are provided for spacing the window section of the housing from the face panel window section, and bonding means provide for bonding and hermetically sealing the tapering sections together. A cooling medium is located in the space between the windows for cooling the face panel.

Abstract: In radiography apparatus a moving slit collimator is disposed between an X-ray source and a patient undergoing examination. Radiation is detected with an X-ray image intensifier and television pickup chain. The field of view of the television pickup is limited to that area of the output screen of the X-ray image intensifier which corresponds to the image produced by direct radiation which passes through the moving slit. The view of the television pickup may be limited by a second slit, disposed between the X-ray image intensifier and television pickup which moves in synchronism with the first slit. Alternately, the view of a television pickup may be limited by synchronizing scan signals for the pickup of the with the motion of the slit collimator.

Abstract: A video blink comparator incorporates an optical system for presenting and superimposing a data pattern image and reference pattern image, a video system for generating a video signal for final comparison of the reference image and data image, and a control system for blinking the respective data image and reference image on and off at the same frequency and out of phase so that a video picture formed by the video signal remains constant when the data image and reference image patterns are substantially identical and so that variant elements of the respective patterns blink on and off in the video picture. A lens system is provided spaced from a video camera to provide variable magnification or enlargement of the superimposed pattern images. Universal mounting of components permits sequential scanning of the superimposed image in fractional portions or blocks permitting non-linear distortion introduced during pattern formation.

Abstract: A scanning device movable with respect to an original is provided for scanning the latter. An optical system focuses the light emitted by a region of the original on a plurality of photo-sensors, the output signals of which are then amplified, selectively inverted, and added. The summed up signal thus obtained is input into a processor which generates a driving signal for controlling a stylus which moves in synchronism with the original relatively to a printing cylinder, and engraves on it an image of said region. The response of the photosensors to light which issues from different parts of the region can be regulated by means of optical filters having locally varying densities.

Abstract: Apparatus for enhancing incomplete, limited bandwidth, sequential signals generated by an image sensor. Each of the incomplete signals comprises a plurality of alternate lines containing information, the lines interposed therebetween being blanked. A picture display device is also provided, and an intermediate storage device interposed between the image sensor and the display device. The storage device stores a first of the incomplete image signals and combines it with the next sequential image signal to form a complete image signal. The complete image sgnal, which is displayed on the display device, contains the information in the next incomplete image signal on alternate lines, the lines therebetween containing the information in the first incomplete image signal. The invention also constitutes a method for enhancing incomplete limited bandwidth sequential signals wherein a first of these signals is stored and then combined with the next sequential image signal to form the complete image signal.

Abstract: A compact optical scanning system is provided to scan the information content of a document and generate electrical signals representative of the information content thereof. A light emitting linear array is used as an illumination source and a linear imaging device is positioned so as to focus the emitted light as a scanning line onto the document. In one embodiment, the document is moved through a scanning zone and light reflected from scanned lines is collected and converted into electrical signals which can be used to control a remote recorder device.

Abstract: A method for pre-processing a picture signal prior to an operational circuit of a picture reproducing machine such as a color scanner and a color facsimile, wherein an original picture is scanned photoelectrically to obtain the picture signal, wherein first conversion characteristics data stored in a memory are read out by addressing addresses of the memory by the picture signal, and then are changed by second conversion characteristics data depending on a desired reproducible density range of the original picture.

Abstract: A communication method and wideband switching network in which wideband signals are communicated through the network with minimal crosstalk between the wideband signals. Minimal crosstalk is achieved by a network architecture and by grounding both ends of all unused video paths. Each stage of the network has a plurality of switching input and output arrays. Each input array has one input terminal and each output array has one output terminal. Output and input terminals of the input and output arrays, respectively, are interconnected to form a nonblocking stage. Each array is one integrated circuit (IC), and crosstalk is reduced by allowing only one wideband signal to be present in an IC at any one time and by grounding all unused output and inputs in the arrays.

Abstract: Head-up display units and other display systems are tested by means of a camera having an array of light-responsive elements. The signals supplied to the display system to control the disposition of the display representation in the display area of the system, are compared with the output from the camera so as to derive an indication of the difference between the signalled disposition and the actual disposition of the representation. The display unit is mounted for angular displacement about two axes at right angles to the line-of-sight. The width of the display representation is determined by measuring the distance between two points of the same brightness on opposite sides of the center of the representation; this is done by displacing the image formed on the array across an individual element of the array. The brightness of the display representation is determined by comparison with a source that is switchable between two known brightness levels.

Abstract: A picture display-image pickup apparatus for visual communication includes a picture display device and an image pickup device. The display device and pickup device are arranged on a substantially common optical axis directing to a talker.

Abstract: A control for modulating the scanning beam of a raster output scanner in response to both video image signal levels and beam intensity signal levels through a single port modulator driver with linear balanced amplifier. A control circuit combines the video image signals with an analog beam intensity signal to provide a composite image/intensity control signal which is input to the modulator port to regulate scanning beam intensity. The image intensity signals are derived from a memory previously loaded with data reflecting image beam intensity variations across the scan line, the memory output being updated by a signal representing current beam intensity prior to use by the control circuit.

Abstract: A moving map display used on an aircraft or other moving vehicle is disclosed. Discreet map segments are stored on a video signal storage means and portions of the video signals for several map segments are read from the storage means and combined to create a composite map segment which is displayed within the aircraft or other moving vehicle. A navigation system on the vehicle provides position information to a microprocessor which functions with other circuitry to determine which map segment portions are to be combined to create the composite map segment.

Abstract: A three-dimensional television picture display system in which information intended for the right and left eye, respectively, of an observer is generated on a display screen (11, 20) in respective first and second images (V1, V2) which are shifted into the direction of line scan. In order to prevent eye strain due to conflicting depth information and any resultant headache, irritation and discomfort, the periodic line blanking of the second image (V2) intended for the left eye is shifted into the direction of line scan at picture generation on the display screen (11, 20) relative to the periodic line blanking of the first image (V1) intended for the right eye. The three-dimensionally shifted line blanking can be realized either electronically (6, 7; 22) or by providing on either side of the display screen (20) of the picture display device (19) strips (HB1, HB2) which transmit/do not transmit information.

Abstract: This relates to a fiber optics communication link, wherein a single optical fiber carries data bi-directionally between two computers. The first computer is coupled by means of control logic to a first transmitter and a first receiver. The first transmitter and receiver are in turn coupled to a single optical fiber by means of a Y-coupler. A second computer is similarly coupled via control logic to a second transmitter and second receiver, which is in turn coupled to the single optical fiber by means of a second Y-coupler. To minimize problems due to reflections, each receiver is disabled when its corresponding transmitter is transmitting data.

Abstract: In a digital fluoroscopy system, analog video signals representative of successive x-ray image frames are converted to digital pixel values that are used as addresses, respectively. A digital memory stores at its respective locations a digital value corresponding to the logarithm of an address value so that when a digital pixel value represented by an address is fed from the analog-to-digital converter to the memory the memory will output the logarithm of the pixel value in digital form. Pixel values for successive x-ray images are subtracted in-phase on a pixel-by-pixel basis to produce digital difference pixel signals which are converted to analog video signals for driving a television monitor that displays an image representative of the difference between x-ray images.

Abstract: A signal processing system comprises an analogue shift register of the charge coupled type (24) fed from a sampling device (22) and controlled by a clock arrangement (26) having three independent clocks (26A, 26B and 26C). Clock (26A) determines the sampling rate of sampling device (22) and the rate at which such samples are clocked into register (24). Clock 26C determines the rate at which stored samples are clocked out of the register (24). Clocks 26A and 26C operate in the MHz range. Clock 26B operates in the KHz range and dictates the sample storage interval and clocks the stored samples through a number of storage sites in register (24) during the storage interval to reduce the adverse effects of geometrical and other inhomogeneities of the individual register sites on the individual stored samples.

Abstract: Counter for pills, including an inclined tray and a photoelectric counter serving a digital readout.

Abstract: A logical circuit which is capable of serving not only as a shift register but also as counter, comprises a cascade-connection of flip-flops of the same number as the number of bits required. The flip-flops have an input connected to a logical gate group composed of gates which are opened and closed by a shift signal and a count signal. The logical circuit does not require that a flip-flop be included for each shift register part and counter part for each bit, but only requires one flip-flop to perform both the count and shift function. The logical circuit is capable of performing an independent operation of a shift register, an independent operation of a counter and a compound operation of inputting data in a serial fashion for initialization and outputting counted data in a serial fashion.