Title :
A Multiplexing System for Multichannel Signal Averaging of the Visual Evoked Response
Author :
Ary, James P. ; Fry, Terry L. ; Biersdorf, William R.
Author_Institution :
Department of Bioinformation Systems, California Institute of Technology
Abstract :
Time-division multiplexing allows 24 channels of evoked potential data to be recorded on a seven track instrumentation tape recorder and later played back into a signal averager where it is simultaneously demultiplexed and averaged. Complimentary metal-oxide-semi-conductor (CMOS) switches provide a simple, low-cost way of increasing the number of recorded channels when the bandwidth of the recorder is sufficiently high.
Keywords :
Bandwidth; Clocks; Costs; Cutoff frequency; Frequency synchronization; Instruments; Multiplexing; Sampling methods; Signal to noise ratio; Switches; Analog-Digital Conversion; Brain; Computers; Evoked Potentials; Online Systems; Semiconductors; Tape Recording; Vision;
Journal_Title :
Biomedical Engineering, IEEE Transactions on
DOI :
10.1109/TBME.1979.326460
