Hauptman Ham, LLP
Communication system and method of data communications
A communication system includes a carrier generator configured to generate a first carrier signal and a demodulator configured to demodulate a modulated signal responsive to the first carrier signal. The demodulator includes a filter and a gain adjusting circuit. The filter is configured to filter a first signal. The first signal is a product of the first carrier signal and the modulated signal. The filter has a first cutoff frequency and a gain. The gain of the filter is controlled by a set of control signals. The gain adjusting circuit is configured to adjust the gain of the filter based on a voltage of the filtered first signal or a voltage of a second signal. The adjustable gain circuit is configured to generate the set of control signals.
TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
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William Wu Huan-Neng Chewn-Pu Lan-Chou Feng Wei
Shen Chen Jou Cho Kuo