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Class Information
Number: 398/45
Name: Optical communications > Multiplex > Optical switching
Description: Subject matter wherein switching of multiple information or signals takes place in optical domain.










Sub-classes under this class:

Class Number Class Name Patents
398/46 Hybrid 98
398/55 Space 151
398/52 Time 136
398/48 Wavelength 445


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14

Patent Number Title Of Patent Date Issued
5592321 Apparatus for selective routing of information signals Jan. 7, 1997
5581386 Method of terminal control signal transmission and photonic switching system incorporating said method Dec. 3, 1996
5576872 Optical distribution device, optical distribution circuit, and synthesizing method of distribution circuits Nov. 19, 1996
5576873 Telecommunications switch architecture Nov. 19, 1996
5574587 Process for increasing the interference suppression Nov. 12, 1996
5568286 Fast liquid crystal switching unit Oct. 22, 1996
5566015 Optical demultiplexer with high speed superconducting switch Oct. 15, 1996
5546209 One-to-many simultaneous and reconfigurable optical two-dimensional plane interconnections using multiple wavelength, vertical cavity, surface-emitting lasers and wavelength-dependent detector Aug. 13, 1996
5539201 Multiple channel driver for fiber optic coupled sensors and switches Jul. 23, 1996
5537239 Optical transmission network with a switching matrix Jul. 16, 1996
5535036 Input/output module providing mixed optical and electrical signal connectivity in data communications equipment Jul. 9, 1996
5528584 High performance path allocation system and method with fairness insurance mechanism for a fiber optic switch Jun. 18, 1996
5524154 Hybrid architecture for an optical switching fabric implemented with 1.times.2 switching devices Jun. 4, 1996
5519695 Switch element for fiber channel networks May. 21, 1996
5502719 Path allocation system and method having double link list queues implemented with a digital signal processor (DSP) for a high performance fiber optic switch Mar. 26, 1996
5502586 Optical network including branch points featuring three interconnected bidirectional optical waveguides having free ends with reflectionless terminations Mar. 26, 1996
5497465 Parallel digital processing system using optical interconnection between control sections and data processing sections Mar. 5, 1996
5493435 Optic switching Feb. 20, 1996
5471332 Hitless switching apparatus and method for optical network Nov. 28, 1995
5467211 Optoelectric sliding banyan network Nov. 14, 1995
5463486 Self-routing multi-stage photonic interconnect Oct. 31, 1995
5459606 In-service upgrade for a telecommunication system Oct. 17, 1995
5442474 Self-routing optical communication node using Sagnac gates Aug. 15, 1995
5414540 Frequency-selective optical switch employing a frequency dispersive element, polarization dispersive element and polarization modulating elements May. 9, 1995
5400162 Optoelectronic multibit beamsteering switching apparatus Mar. 21, 1995
5381250 Electro-optical switch with 4 port modules with electro-optic polarization rotators Jan. 10, 1995
5371621 Self-routing multi-stage photonic interconnect Dec. 6, 1994
5365359 Method for electrically passive self-routing optical multiplexing Nov. 15, 1994
5363228 Optical device with spatial light modulators for switching arbitrarily polarized light Nov. 8, 1994
5351146 All-optical network architecture Sep. 27, 1994
5345326 Optical matrix switch Sep. 6, 1994
5345321 Compact polarization dependent optical switching units Sep. 6, 1994
5319477 Compact polarization independent optical switching units Jun. 7, 1994
5317198 Optically controlled remote by-pass switch May. 31, 1994
5309564 Apparatus for networking computers for multimedia applications May. 3, 1994
5307342 Heterogeneous ports switch Apr. 26, 1994
5245458 Optical interconnect networks Sep. 14, 1993
5241610 Optical switching in a fiber communication system and method using same Aug. 31, 1993
5239399 Electrical-optical interface device Aug. 24, 1993
5227906 Optical switch array capable of bidirectional signal transfer between a plurality of terminals Jul. 13, 1993
5222166 Aircraft fiber optic data distribution system Jun. 22, 1993
5206497 Free-space optical switching apparatus Apr. 27, 1993
5189542 System for the optical switching of frequency multiplexed signals Feb. 23, 1993
5172258 Method and apparatus for high data rate fiber optic communication system Dec. 15, 1992
5162944 Optical space switch and network for such optical space switches Nov. 10, 1992
5153757 Network control arrangement Oct. 6, 1992
5150245 Multiprocessor computer with optical data switch Sep. 22, 1992
5132832 Token ring concentrator with global reset capability Jul. 21, 1992
5122892 Space-division switching network having reduced functionality nodes Jun. 16, 1992
5086349 Optical switching system which employs reference beams with different wavelengths Feb. 4, 1992

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