Abstract:
Apparatus for displaying patterns on an enlarged or reduced scale comprising a cathode ray tube including a cathode electrode, a plurality of matrix electrodes arranged in a matrix, a fluorescent screen, focusing means and deflection means which are disposed between the matrix electrode and the fluorescent screen; a pattern memory connected to the matrix electrodes for storing the patterns of letters, digits, symbols, etc. to be displayed; a memory for supplying an enlargement or reduction signal and a position designation signal of the information of the pattern to be displayed; an enlargement-reduction control connected to the supply memory for controlling the potential applied to the focusing means in accordance with the enlargement or reduction signal supplied from the memory; and a position designator connected to the memory for converting the position designation signal into an analogue signal and for applying the analogue signal to the deflecting means, whereby said focusing means operates to enlarge or reduce the pattern displayed on the fluorescent screen in accordance with the enlargement or reduction signal supplied from the memory and said position designator operates to position said pattern on said screen.
Abstract:
In a display apparatus utilizing a cathode ray tube, the tube is provided with a dot matrix electrode and the apparatus is provided with a plurality of memories for different types of patterns and connected with the matrix electrode, an address register for storing the positions on the screen at which selected patterns are to be displayed, a memory for storing the information regarding the patterns to be displayed, means responsive to the outputs from the address register and the memory for selectively driving the plurality of memories and means for supplying deflection current to the deflection coil of the cathode ray tube in synchronism with the outputs from the plurality of memories.
Abstract:
A pattern generating system for use with a display device including a matrix electrode assembly comprises a plurality of pattern signal generators for displaying different patterns on the matrix electrode assembly. Means is provided to selectively drive one of the plurality of pattern signal generators for displaying a selected one of the patterns or simultaneously driving a plurality of pattern signal generators for displaying modified patterns on the matrix electrode assembly by synthesizing different patterns. Alternatively, a partial pattern signal generator is added which is driven concurrently with one of the plurality of pattern signal generators for displaying a modified pattern.