Abstract: A combination paper tape punch and reader having a bi-directional stepping tape transport controlled by a continuously oscillating magnetically activated pawl. A further improvement is a punch interposer geometry allowing for easy removal of the punch and die. A single motor and timing signal is used for both punch and reader tape transports.

Abstract: A facsimile reproduction system is disclosed. The system utilizes a laser beam at the transmission station to scan across an image to be reproduced through an acousto-optic modulator (AOM) cell. The laser beam is reflected off the image onto photo detector cells to generate electrical signals analogous to tonal variation in the image. A laser beam at the receiver station is also provided to sensitize a sheet of sensitized paper to produce a facsimile of the image. The intensity of the receiving station laser beam is modulated in accordance with the photo detector electrical signals by applying the signals to an rf carrier which then is applied to an AOM cell positioned between the laser and sensitized paper.

Abstract: A flying spot scanner is disclosed for scanning an object document or scene with a spot of light, and producing an electrical video signal representing the object. The scanner can be operated under normal ambient light conditions without a light-shielding enclosure. A light beam is deflected in repetitive scanning fashion over the object. The light beam is modulated in amplitude (intensity) at a radio frequency f.sub.c such as 1.2 MHz. A photodetector is positioned to receive light from the object, and it produces an unwanted electrical ambient light noise signal having a maximum frequency f.sub.a, and an electrical information signal consisting of a carrier at frequency f.sub.c modulated by a video signal having a maximum frequency f.sub.m, where f.sub.c - f.sub.m is larger than f.sub.a. The information signal is separated from the ambient light noise signal by a filter, and the information signal is demodulated to produce a facsimile or video information signal free of noise due to ambient light.

Abstract: The specification discloses a multiplexing system for an image detection array having laterally staggered first and second rows of image detectors which generate electrical signals representative of sensed images. First and second charge coupled device shift registers are connected to receive the electrical signals through channel inlets spaced along the lengths of the registers. Circuitry is operable during a first clock period for parallel loading electrical signals from the first row of detectors into a first set of alternate ones of the channel inlets of the first shift register. Circuitry is operable during a second clock period for parallel loading electrical signals from the second row of detectors into a second set of alternate ones of the channel inlets of the first shift register for storage between electrical signals from the first row of detectors.

Abstract: A TV compatible infrared imaging system employs horizontal and vertical oscillating scan mirrors which are driven in synchronism. The horizontal mirror oscillates at a fraction of the usual television horizontal scan rate while the vertical mirror is driven at the usual TV field rate. As the mirrors oscillate, the system scans back and forth across the scene being viewed, the radiation from that scene being imaged on an infrared detector. The radiance patterns from each oscillatory scanned horizontal line pair, one sweeping from left to right and the other sweeping from right to left are converted by a "line converter" to a pair of constant rate horizontal lines sweeping from left to right so that the output of the system can be applied directly to a conventional television recorder or receiver.

Abstract: A electronic system develops a rotating raster scan in synchronism with a tating image enabling a stationary image sensor to generate video signals for producing an erect, non-rotating image at a remote location. Sine and cosine signals are synchronously developed with the rotation of the image as a function of the instantaneous angle of the rotation. The sine and cosine signals are combined with linear vertical and horizontal sawtooth deflection signals and applied to the deflection means of the stationary image sensor to produce an erect, non-rotating video image on the face of a remote cathode ray tube display.

Abstract: A television apparatus for video signal analysis has a camera tube in which, with the aid of a step-shaped deflection signal, a shift of a line scanning raster in the field scan direction is possible over a part of the width of a scanning line. Objects having a height in the order of the width of the scanning line can be analyzed by applying the information of the moving scanning line to a display device in which the value of the video signal is vertically displayed.

Abstract: In a scanned multiple image display device a plurality of individual projectors produces a single composite image by optically combining individual projector outputs. The individual images must be converged with each other to produce an acceptable display. A digital computer is used to generate and store words that correspond to the required convergence correction for individual projectors. The stored words are read out of the computer in accordance with projector scanning timing and, after being converted to analog form, are used to correct the scanning to produce convergence.

Abstract: In a video signal reproducing device having a cathode ray tube in which at least one electron beam is focused at a phosphor screen and is made to scan the screen in line-scanning and vertical directions, and in which the beam focusing is effected by an electron lens constituted by at least two tubular electrodes arranged coaxially in succession along the axis of the tube with a relatively low potential being applied to one of the electrodes and a relatively high potential being applied to the other electrode or electrodes; electron beam scanning velocity modulation is effected by forming the tubular electrode to which the low potential is applied in two parts which are axially separated along a vertical plane inclined relative to the tube axis, and by applying across the two parts of such tubular electrode a control signal which is produced in response to transient changes in the luminance or brightness of the video signal being reproduced.