Abstract:
A system (10) for spatially transforming images by separate transformation of each dimension of the image is exemplified by a raster scan television system which includes for each color component a transposing memory (18) providing a change of scan direction from horizontal to vertical, a vertical transformation system (20) transforming in the vertical direction the vertically scanned video information, a second transposing memory (22) coupled to receive vertically transformed video information and provide a change of scan direction from vertical back to horizontal, and a horizontal transformation system (24) coupled to horizontally transform the horizontally scanned video signal to provide a color component output signal. The transformation system is controlled by a transform composer and factorizor (26) which receives input commands designating X and Y pretranslations, X and Y size control, Z axis rotation angles, and X and Y post translations to produce a commanded composite transformation which is then factored into honzontal and vertical components.
Abstract:
A system for spatially transforming images by separate transformation of each dimension of the image is exemplified by a raster scan television system which includes for each color component a transposing memory (18) providing a change of scan direction from horizontal to vertical, a vertical transformation system (20) transforming in the vertical direction the vertically scanned video information, a second transposing memory (22) coupled to receive vertically transformed video information and provide a change of scan direction from vertical back to horizontal, and a horizontal transformation system (24) coupled to horizontally transform the horizontally scanned video signal to produce a color component output signal. The transformation system is controlled by a transform composer and factorizor (26) which receives input commands designating X and Y pretranslation, X and Y size control, Z axis rotation angles, and X and Y post-translations to produce a commanded composite transformation which is then factored into horizontal and vertical components.
Abstract:
Support magnetique possedant des proprietes mecaniques et magnetiques ameliorees comprenant un substrat non magnetique enduit d'une composition de liant magnetique composee de (a) un melange d'un polymere thermoplastique de poids moleculaire eleve polymerise par une radiation, telle qu'un polyurethane lineaire de poids moleculaire superieur a 50000, et un prepolymere d'acrylate polyfonctionnel polymerisable au moyen d'une radiation et (b) des particules magnetiques dispersees dans le melange polymerise au moyen d'une radiation.
Abstract:
A system for spatially transforming images by separate transformation of each dimension of the image is exemplified by a raster scan television system which includes for each color component a transposing memory (18) providing a change of scan direction from horizontal to vertical, a vertical transformation system transforming in the vertical direction the vertically scanned video information, a second transposing memory (22) coupled to receive vertically transformed video information and provide a change of scan direction from vertical back to horizontal, and a horizontal transformation system (24) coupled to horizontally transform the horizotally scanned video signal to produce a color component output signal. The transformation system is controlled by a transform composer factorizor (26) which receives input commands designating X and Y pretranslations, X and Y size control, Z axis rotation angles, and X and Y post translations to produce a commanded composite transformation which is then factored into horizontal and vertical components.
Abstract:
A digital circuit for generating a linearly increasing signal is provided for controlling the level of a recording A.C. bias signal. The digitally controlled bias signal (24) is mixed (48) with an analog signal of a known frequency and constant level and recorded (41). The circuit detects and stores a recording bias level corresponding to a reproduce signal envelope level (54), equal to an obtained peak level (56) adjusted with respect to a known overbias level (58). The circuit compensates (20) the detected recording bias level with respect to distance between the recording and reproducing heads (41, 42) to obtain an optimum recording bias level. The detected bias level remains stored (18) and unchanged during power supply interruption.