Patent ID: 8654897
Filing Date: 2014-02-18
Classification: H04B,H04M

Abstract:
1. A micro-controller, comprising a central processor, and further comprising a receiving circuit, wherein the receiving circuit comprises: an analog amplifier, configured to connect with a power line coupling circuit, receive a power line carrier signal, and amplify the power line carrier signal; a receiving filter which connects with the analog amplifier, configured to filter the power line carrier signal output by the analog amplifier; an analog-to-digital converter which connects with the receiving filter, configured to convert the filtered power line carrier signal output by the receiving filter into digital signals; a digital mixer which connects with the analog-to-digital converter, configured to mix the digital signals; a digital filter which connects with the digital mixer, configured to filter the mixed digital signals output by the digital mixer; a digital demodulator which connects with the digital filter, configured to perform FSK demodulation or PSK demodulation on the digital signals filtered by the digital filter, and output the demodulated signal; and the central processor connects with the digital demodulator of the receiving circuit, and is configured to provide a demodulation control signal to the digital demodulator, so that the digital demodulator selects an FSK demodulation mode or a PSK demodulation mode.