Swarm Holdings Llc.

Paul Mark Michalczuk

Jonathan Hart

Jesse Alden Smith

An audio filtering and power extraction apparatus for filtering out audio signal and extracting power from a combined signal and direct-current power line, with an input configured to couple to a combined signal and direct-current power line, a filtering extractor system functionally coupled to the input, a DC sensing switch circuit, and a second order low-pass filter functionally coupled to the DC sensing switch circuit, the second order low-pass filter including, an inductor, a capacitor and resistor in series with each other, and an output functionally coupled to an output of the filtering extractor system and through which output extracted power is provided.

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Bainbridge Island, WA, United States of America

Paul Mark Michalczuk