Abstract
A data-acquisttion system has been built which performs real-time digital finite-impulse-response filtering to aid in the detection of neural signals. The system acts as an intelligent peripheral to a host laboratory computer, Digital filtering is done by a special-purpose LSI signal-processing chip, while the system's controller is a standard microprocessor, The system is programmable, permitting many acquisition modes to be exectuted, and can be replicated to create a multiple-channel system. A typical sampling rate is 20 kHz; maximum rates depend on the acquisition mode. Significant data compression can be achieved using the system resulting in longer permissible experimental recordings.
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