Monitor and method for acquiring and processing electrical signals relating to bodily functions
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United States of America Patent
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Nov 29, 1994
Issued Date -
N/A
app pub date -
Oct 15, 1992
filing date -
Oct 15, 1992
priority date (Note) -
In Force
status (Latency Note)
Importance
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.
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Family
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