Patent ID: 7627371

Claim:
An implantable biomedical chip with modulator for a wireless neural stimulating system, comprising: a power regulator, for receiving power from a receiver coil and providing power; a demodulator, for demodulating an input signal from the receiver coil to a demodulated signal; a baseband circuit, for decoding the demodulated signal to at least one control signal; a D/A converter, for converting the control signal to a stimulating current; an instrumentation amplifier, for amplifying and filtering a neural signal; an A/D converter, for converting the neural signal from the instrumentation amplifier to a digital neural signal; and a modulator, the for modulating the digital neural signal to an output signal; wherein the baseband circuit comprises: a mixed-signal module, for generating a built-in clock signal and a built-in reset signal; a data and clock recovery circuit, for generating a recovered clock signal and recovering the demodulated signal to a recovered packet according to the built-in clock signal and the built-in reset signal; a serial to parallel converter, for converting the recovered packet into a parallel recovered packet; and a decoder, for decoding the recovered clock and the parallel recovered packet and generating an address control signal, a magnitude control signal and a polarity control signal.