.~.~ With alignment between transmitter and receiver
DEFINITION
Classification: 359/159
With alignment between transmitter and receiver:
(under subclass 154) Subject matter wherein the transmitter and receiver are always pointed at one another.
(1) Note. The alignment of this subclass is in an optical communication system.
SEE OR SEARCH CLASS
356, Optics: Measuring and Testing,
138+, for axial alignment which requires measuring to determine how to align, but not in an optical communication environment; and subclasses 399+ for lateral alignment which moves the receiver or transmitter for alignment between the two, but not in an optical communication environment.