Monitor and method for acquiring and processing electrical signa

Details Monitor and method for acquiring and processing electrical signa Monitor and method for acquiring and processing electrical signa

1992-10-15

1994-11-29

Cohen, Lee S.

Surgery

Truss

Pad

128901, 128902, A61B 504

Patent

active

053680413

ABSTRACT:
A monitor which receives electrical signals from a human body includes a portable data acquisition module and a substantially stationary processing module. The EEG signals are acquired and converted to an oversampled stream of digital signals by a sigma-delta modulator located in the data acquisition module. The signals are then filtered by a decimation filter located in the processing module. Additional means are also provided to monitor the electrode leads to detect when the leads become unplugged. The monitor provides all power to the data acquisition module over a single twisted line which transmits data as well.

REFERENCES:
patent: 4244376 (1981-01-01), Fisher et al.
patent: 4967038 (1990-10-01), Gevins et al.
patent: 5038782 (1991-08-01), Gevins et al.
patent: 5168874 (1992-12-01), Segalowitz
Hanley et al., "Electrode Systems For Recording the EEG in Active Subjects", Biomedical Electrode Technology, Academic Press 1974.

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