US PATENT SUBCLASS 385 / 17
.~.~ Matrix switch (i.e., M X N, where M and N are 3 or more)

Current as of: June, 1999
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385 /   HD   OPTICAL WAVEGUIDES

15  DF  WITH OPTICAL COUPLER {8}
16  DF  .~ Switch (i.e., switching from one terminal to another, not modulation) {6}
17.~.~ Matrix switch (i.e., M X N, where M and N are 3 or more)

DEFINITION

Classification: 385/17

Matrix switch (i.e., M X N, where M and N are 3 or more):

(under subclass 16) Subject matter wherein a plurality of switches can selectively couple light on any of M input waveguides to any of N output waveguides where the M input waveguides and the N output waveguides form a rectilinear array.