CPC Subgroup
H03H 9/40 Frequency dependent delay lines, e.g. dispersive delay lines (H03H9/42 takes precedence)
Full Title
Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators (electro-acoustic transducers such as loudspeakers, microphones or gramophone pick-ups H04R; piezoelectric, electrostrictive or magnetostrictive devices with mechanical input or output, e.g. actuators or sensors, H10N30/00, H10N35/00) > Time-delay networks > Frequency dependent delay lines, e.g. dispersive delay lines (H03H9/42 takes precedence)