Two speed system for EEG recording

Details Two speed system for EEG recording Two speed system for EEG recording

1974-11-06

1976-05-25

Kamm, William E.

Surgery

Truss

Perineal

346 33ME, A61B 504

Patent

active

039585638

ABSTRACT:
A method and system for recording EEG waveforms whereby the amplitude of the waveform signal in both positive and negative direction is compared with variable levels and a trigger signal produced when the amplitude exceeds a level to cause the strip of recording paper to speed up for at least a predetermined time and to continue for the length of the seizure so that little paper is accumulated during periods of uninteresting activity while a complete readable record is produced of any notable EEG activity, such as an epileptic seizure.

REFERENCES:
patent: 3513834 (1970-05-01), Suzuki et al.
patent: 3646930 (1972-03-01), Patterson et al.
patent: 3650263 (1972-03-01), Kowalski
patent: 3721230 (1973-03-01), Zienicki
patent: 3824990 (1974-07-01), Baule
patent: 3841309 (1974-10-01), Salter et al.
patent: 3841315 (1974-10-01), Kopp
patent: 3854472 (1974-12-01), Giori

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