US PATENT SUBCLASS 333 / 15
PILOT LINE-CONTROLLED SYSTEMS


Current as of: June, 1999
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333 /   HD   WAVE TRANSMISSION LINES AND NETWORKS

15PILOT LINE-CONTROLLED SYSTEMS


DEFINITION

Classification: 333/15

(under the class definition) Systems including an auxiliary line so structurally related to a transmission line that a change in the transmission line characteristics caused by a change in an ambient condition, such as temperature or humidity, will be accompanied by a change in a parameter of the auxiliary line, and means controlled by this change in parameter to compensate for the change in transmission line characteristics.

SEE OR SEARCH THIS CLASS, SUBCLASS:

2+, for plural channel systems including a pilot line.

16, for systems utilizing a pilot current for purposes of control.

SEE OR SEARCH CLASS

323, Electricity: Power Supply or Regulation Systems,

294, for impedance systems in general which are automatically controlled in response to a thermal condition. 330, Amplifiers,

52, for amplifier systems having control means, wherein the

control is exercised by a pilot signal. See the Class Definition of Class 330 for the line between this class (333) and Class 330 where pilot signals are involved.

379, Telephonic Communications,

338+, for repeater systems (e.g. two way amplifier system) which utilize a pilot line to compensate for changes in the transmission characteristics of the main line.