(under subclass 524) Subject matter including a circuit wherein four electrical elements have their input and output terminals connected in a closed loop to form a four arm network.
(1) Note. Bridge circuits may have another arm, called a diagonal arm, which is connected across two adjacent arms of the network, between an input terminal and an output terminal.
SEE OR SEARCH THIS CLASS, SUBCLASS:
587, for two electrode solid-state device with bridge circuit.
SEE OR SEARCH CLASS
323, Electricity: Power Supply or Regulation Systems,
365, for Wheatstone bridges, in general.
324, Electricity: Measuring and Testing, 57+, for impedance measuring bridge systems and subclasses 98+ and 101 for bridge-type electric meter systems.
330, Amplifiers,
72, 76+, 146, and 175 for amplifier networks utilizing bridge networks.
331, Oscillators,
110, and 138+ for bridge-type oscillator systems.
332, Modulators,
172, for bridge-type amplitude modulators.
333, Wave Transmission Lines and Networks,
117+, 169, 170+, and 197+ for passive type bridge systems.
