US PATENT SUBCLASS 330 / 175
.~ With lattice or Wheatstone bridge network in coupling circuits


Current as of: June, 1999
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330 /   HD   AMPLIFIERS

157  DF  INTERSTAGE COUPLING {11}
175.~ With lattice or Wheatstone bridge network in coupling circuits


DEFINITION

Classification: 330/175

(under subclass 157) Subject matter wherein the coupling includes a network having four impedance branches connected in series to form a closed circuit, two nonadjacent junction points serving as input terminals while the remaining two junction points serve as output terminals.

SEE OR SEARCH THIS CLASS, SUBCLASS:

72, for plural amplifier devices having space discharge paths in different arms of a bridge.

146, for Wheatstone bridge with amplifier in at least one arm.

185+, for amplifier input coupling including any with a lattice or Wheatstone bridge network. See (1) Note under subclass 157, above.

192+, for amplifier output coupling including any with a lattice or Wheatstone bridge network. See (1) Note under subclass 157, above.

SEE OR SEARCH CLASS 333, Wave Transmission Lines and Networks,

74, sections (1) and (2) of the definition.