US PATENT SUBCLASS 359 / 127
.~.~.~ By optical coupling

Current as of: June, 1999
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359 /   HD   OPTICS: SYSTEMS (INCLUDING COMMUNICATION) AND ELEMENTS

109  DF  OPTICAL COMMUNICATION {13}
115  DF  .~ Multiplex {7}
124  DF  .~.~ Wavelength division/frequency division (includes scattering, e.g., Raman, Brillouin, etc.) {4}
127.~.~.~ By optical coupling {4}
128  DF  .~.~.~.~> Switch
129  DF  .~.~.~.~> Prism
130  DF  .~.~.~.~> Grating
131  DF  .~.~.~.~> Lens

DEFINITION

Classification: 359/127

By optical coupling:

(under subclass 124) Subject matter wherein the multiplexing is accomplished by the optical device itself, which permits the transfer of light from one element to another.

(1) Note. The combination of an optical coupler or input/output coupler, and wavelength division or frequency division optical communication system is classified in this subclass.

SEE OR SEARCH CLASS

385, Optical Waveguides,

15, (optical coupler) and 31 (input/output coupler) for couplers not included in an optical communication system.