G - Physics – 01 – R
Patent
G - Physics
01
R
375/35
G01R 13/00 (2006.01)
Patent
CA 1086878
TITLE: FLYING SPOT PATTERN STORAGE SYSTEM Abstract of the Disclosure A storage system is provided in which digital numbers are read into a memory by periodically sampling a pair of analog input signals and in which the memory is scanned in timed relation to the signal sampling and also in timed relation to the scanning of a cathode ray tube screen in a raster pattern, the scanning spot being bright- ened when a stored digital number is detected. A pair of digital-to-analog converters are used both in sampling and for raster scanning. In sampling, the outputs thereof are compared with the input signals to control analog-to-digital logic circuits and the inputs thereof are connected through multiplexers to the output of the analog-to-digital logic circuits which operate as successive approximation registers. In raster scanning, the inputs of the digital-to-analog converters are connected to counter sections driven from a high frequency clock one being operative to develop a sawtooth signal to generate a sweep line and the other being operative at a field or frame rate. The memory is also connected through the multi- plexers, alternately to the outputs of the analog-to-digital logic circuits and to the counters to be scanned in synchro- nism with the scanning of the screen. The multiplexers are so switched that sampling is performed between successive sweep lines. - 1 -
312522
Flaherty John J.
Strauts Eric J.
Magnaflux Corporation
Pascal & Associates
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