Example image of eyePlorer eyePlorer map for 'Composite image filter': Electronic filter Image impedance Electronic filter topology Linear filter American Telephone & Telegraph Multiplexing Single-sideband modulation Operational calculus Constant k filter George Ashley Campbell Loading coil Oliver Heaviside Transmission line Otto Julius Zobel M-derived filter Passband Stopband Low-pass filter Prototype filter Band-pass filter Band-stop filter High-pass filter Mm'-type filter Hendrik Wade Bode Zobel network Equalization filter Box blur Image analogy Image filter end terminations Bridged T delay equaliser Tom Goes to the Mayor Network synthesis filters Filter (signal processing) Nominal impedance Topology (electronics) Passive analogue filter development