Microcomputer-based system for the on-line analysis and topograp

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340704, 364415, 364417, 364521, 382 6, G06F 1542, G06F 15332

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047363070

ABSTRACT:
A system for the on-line analysis and topographic display of human brain electrical activity which includes amplifying filtering and converter circuits for generating a plurality of signals, representing electrical activity at a plurality of predetermined data point locations on a patient's head in digital form, a first microprocessor and associated circuits to preprocess the digital signals into a predetermined format, and a second microprocessor and associated topographic map generator forming an image computation and display unit receiving the preprocessed digital signals as inputs from the image computation and display unit the topographic map generator defining a map of a plan or elevation view of the brain containing a plurality of pixel points far in excess of the number of data points and interpolating the digital signals, so as to provide a value for each pixel on the map and providing the pixel information as outputs in synchronism with a horizontal and vertical scan, and a video monitor receiving the output of the image computation and display unit as an input.

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