Small-scale signal adding device and differential detecting...

Details Small-scale signal adding device and differential detecting... Small-scale signal adding device and differential detecting...

H - Electricity

04

J

H04J 3/02 (2006.01) H03D 3/00 (2006.01)

Patent

CA 2154646

A signal adding device for adding n input signals, comprising n A/D converters, a selector, and a lowpass filter. The n input signals are sampled in sequence by the A/D converter and digitized. Each digitized data is time-division multiplexed by the selector and input to the lowpass filter. The lowpass filter eliminates unnecessary higher-frequency components that are generated by the sampling of the A/D converter. The signal output from the lowpass filter consists of the baseband components only, that is, the signal is equal to an added signal of n input signals.

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