IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS (waveguides, resonators, lines or other devices of the waveguide type H01P)

Child Classifications

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• H03H 1/00 Constructional details of impedance networks whose electrical mode of operation is not specified or applicable to more than one type of network (constructional details of electromechanical transducers H03H9/00)
• H03H 11/00 Networks using active elements
• H03H 15/00 Transversal filters (electromechanical filters H03H9/46, H03H9/70)
• H03H 17/00 Networks using digital techniques
• H03H 19/00 Networks using time-varying elements, e.g. N-path filters
• H03H 2/00 Networks using elements or techniques not provided for in groups H03H3/00 - H03H21/00
• H03H 21/00 Adaptive networks
• H03H 2210/00 Indexing scheme relating to details of tunable filters
• H03H 2218/00 Indexing scheme relating to details of digital filters
• H03H 2220/00 Indexing scheme relating to structures of digital filters
• H03H 2222/00 Indexing scheme relating to digital filtering methods
• H03H 2240/00 Indexing scheme relating to filter banks
• H03H 2250/00 Indexing scheme relating to dual- or multi-band filters
• H03H 2260/00 Theory relating to impedance networks
• H03H 3/00 Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators
• H03H 5/00 One-port networks comprising only passive electrical elements as network components
• H03H 7/00 Multiple-port networks comprising only passive electrical elements as network components
• H03H 9/00 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)