.~> With control of equalizer and/or delay network
AUTOMATICALLY CONTROLLED SYSTEMS:
(under the class definition) Subject matter having means to sense a condition in the system and to modify a wave propagation characteristic of the system in accordance with the condition so sensed.
(1) Note. The automatic control must be of the wave propagation characteristic of a transmission line, system or network which would be classified in this class. Where the system or network includes a component or device which, per se, is not classified in the class, combined with a transmission line, system or network which causes classification of the subject matter in this class, and the automatic control is only with respect to such component or device which is classified, per se, in another class. Then the patent is not classified in this or the indented subclass, but is classified in subclass providing for the subject matter claimed. For example, a wave filter combined with an automatically operated current or voltage magnitude control means does not effect the wave propagation characteristic of the filter are classified in subclasses 165+ below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
2+, for plural channel systems including automatic control.
13, for resonator type breakdown discharge systems which are automatically controlled.
14, for amplitude compression and expansion systems including automatic control.
15, for pilot line controlled systems involving automatic operation. 16, for pilot current controlled systems including automatic operation.
SEE OR SEARCH CLASS
307, Electrical Transmission or Interconnection Systems, appropriate subclasses, especially
92+, 97, 99, and 116 for miscellaneous electrical distribution systems with automatic control means.
323, Electricity: Power Supply or Regulation Systems,
234, 303 for condition sensing regulators.
327, Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems,
509+, and 518+ for miscellaneous externally effected or control circuits.
1+, for oscillator systems utilizing a phase or frequency sensing means for automatically stabilizing the oscillator frequency subclass 183 for oscillator systems having means for automatically controlling or stabilizing the amplitude of the generated oscillations and subclass 186 for oscillator systems with a particular source of power or bias voltage of the automatically regulated type.
336, Inductor Devices, particularly 30+, for inductor devices automatically adjustable in response to a condition.