Demodulated chrominance signal filter with peaked response

摘要

A filter network suitable for processing a signal such as the demodulated "I" chrominance component of a composite color television signal is disclosed. The filter network comprises plural cascaded mutually interactive resonant LC sections for providing wideband filtering, amplitude peaking over a prescribed range of signal frequencies, and signal delay. Mismatched resistors terminate the filter network and constitute the primary DC impedance of the filter network, and the LC sections exhibit selected impedances at frequencies within the peaking frequency range.