Wireless EEG system for effective auditory evoked response

Details Wireless EEG system for effective auditory evoked response Wireless EEG system for effective auditory evoked response

1995-09-18

1998-05-26

Bahr, Jennifer

Surgery

Truss

Pad

A61B 50476

Patent

active

057552304

ABSTRACT:
A wireless EEG system for effective auditory evoked response, comprising an electrode array which is adapted to be attached to a person and senses voltages produced by the brain electrical activity of the person; transmitter electrically connected to the electrode array such that the transmitter produces a radio frequency signal corresponding to the voltages sensed by the electrode array, encodes the radio frequency signal with error correcting encoding and transmits the radio frequency signal by radio frequency telemetry through a transmitting antenna; the transmitter utilizing carrier frequency shift keyed circuitry to modulate a phase locked loop synthesized carrier frequency and reference frequency shift keyed circuitry to modulate a reference frequency to allow for non-return to zero format of the radio frequency signal obviating the need for Manchester encoding; receiver that receives through a receiving antenna the radio frequency signal produced and transmitted by the transmitter and whereby the receiver decodes the radio frequency signal and produces a data output corresponding to the radio frequency signal received by the receiver; and an operator interface connected to the receiver such that the operator interface receives as input the data output produced by the receiver such that the operator interface records a verbal stimulus given by an individual and provides an auditory stimulus whereby the operator interface displays the data output, such display providing a comparison of the brain electrical activity in response to said stimulus.

REFERENCES:
patent: 4681111 (1987-07-01), Silvian
patent: 5230344 (1993-07-01), Ozdamar et al.
patent: 5307817 (1994-05-01), Guggenbuhl et al.
Sid Deutsch, Multielectrode EEG Biotelemetry: Remote Monitoring and Stimulation of Ambulatory Monkeys and Humans, Conference Paper, pp. 162-167, Oct. 1977.

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