.~ Near field (e.g., inductive or capacitive coupling)
DEFINITION
Classification: 455/41
Near field (e.g., inductive or capacitive coupling):
(under subclass 39) Subject matter which is near field or limited ranged systems (i.e., field strength = k/d where d = distance from the transmitter to the receiver) where signal transfer from the transmitter to the receiver is inductive or capacitive rather than electromagnetic.
SEE OR SEARCH THIS CLASS, SUBCLASS:
40, for underwater systems that may be inductive or capacitive.
SEE OR SEARCH CLASS
178, Telegraphy,
43, for inductive telegraphy.
375, Pulse or Digital Communications,
256, for near field pulse or digital communication.
