Ruoyuan Qu

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A couple of radio-frequency integrated circuits working at 2.4G-2.5GHz are presented as wireless transmitter and receiver for neural signal recording application. The transmitter is consisted of a two bits digital logic controlled voltage control oscillator with cross-coupled to provide the carrier, an on-off keying modulator for bandwidth and power(More)
A wireless neural signal acquisition system is presented for freely-running test. It consists of low-noise, high input impedance analog processing, radio frequency (RF) transmitter and receiver. Firstly, the weak neural signal is amplified by a variable gain pre-amplifier and then digitalized by a Sigma-delta ADC. Secondly, the digital data is transmitted(More)
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