220405 ⎘
Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of piezo-electric or electrostrictive resonators or networks for obtaining desired frequency or temperature coefficient; Resonance frequency operating on an additional circuit element, e.g. a passive circuit element connected to the resonator
Method of forming a transducer controller and circuit therefor
#2Method for producing a batch of acoustic wave filters
#3Acoustic wave filter and method for manufacturing the same
#4Tunable film bulk acoustic resonators and filters
#5Resonant circuit with variable frequency and impedance
#6Variable capacitance element and tunable filter
#7Method of adjustment during manufacture of a circuit having a capacitor
#8Complex resonance circuit and oscillation circuit using the same
#9Composite resonance circuit and oscillation circuit using the circuit