Abstract
We designed a new multi-unit acquisition system for free-moving animal which breaks through the constraint of conventional multi-unit recording systems. To release those animals from thick electronic wires while experiments, the IrDA infrared data communication, field programmable analog array-MPAA020 and 16bit micro processor-H8 were used for the design. We summarized the related works for multi-unit recording techniques and pointed out the defects of those old techniques. Then the design of the system were introduced. In the result of the paper, we checked the fidelity of recorded neural activity and the reliability of the data transmission.
