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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
6721315 Control architecture in optical burst-switched networks Apr. 13, 2004
6718082 Solid-State optical wavelength switches Apr. 6, 2004
6714740 Optical network and switch control method for use in the optical network Mar. 30, 2004
6711358 Optical apparatus using a phase grating Mar. 23, 2004
6707594 Method and device for switching wavelength division multiplexed optical signals using two-dimensional micro-electromechanical mirrors Mar. 16, 2004
6704476 Optical MEMS switch with imaging system Mar. 9, 2004
6704508 Optical crossconnect, optical network device, and connection status supervisory method Mar. 9, 2004
6701092 Laser based telecommunication network and router Mar. 2, 2004
6690885 Optical crossconnect using tilting mirror MEMS array Feb. 10, 2004
6690891 Method for synchronizing optical signals, an optical synchronizing devices and an optical network node therefor Feb. 10, 2004
6687462 Wavelength slicer for optical signal switching Feb. 3, 2004
6680797 Spatial light modulators for full cross-connections in optical networks Jan. 20, 2004
6674971 Optical communication network with receiver reserved channel Jan. 6, 2004
6668106 Crosspoint microwave switching architecture for optical telecommunications Dec. 23, 2003
6665495 Non-blocking, scalable optical router architecture and method for routing optical traffic Dec. 16, 2003
6665476 Wavelength selective optical add/drop multiplexer and method of manufacture Dec. 16, 2003
6658179 Monolithic reconfigurable optical multiplexer systems and methods Dec. 2, 2003
6647208 Hybrid electronic/optical switch system Nov. 11, 2003
6636337 Optical switching device based on stable, non-absorbing optical hard limiters Oct. 21, 2003
6631245 Device for extracting and inserting optical carriers in optical communications networks Oct. 7, 2003
6626590 Optical communication network Sep. 30, 2003
6625340 Optical switch attenuator Sep. 23, 2003
6616350 Method and apparatus for providing a more efficient use of the total bandwidth capacity in a synchronous optical network Sep. 9, 2003
6603898 Apparatus and method for achieving a smooth spectral response optical filter Aug. 5, 2003
6580847 Multistage photonic switch fault isolation Jun. 17, 2003
6577412 System and method of determining end point candidates for an optical channel in a data network Jun. 10, 2003
6570874 ATM switch May. 27, 2003
6570684 Optical routing/switching systems May. 27, 2003
6567576 Optical switch matrix with failure protection May. 20, 2003
6563617 Optical apparatus using a 2D-spatial light modulator May. 13, 2003
6560000 Wavelength-dependent optical signal processing using an angle-to-offset module May. 6, 2003
6556319 Split redundant trunk architecture using passive splitters and path switching Apr. 29, 2003
6538818 Method and device for wavelength switching, wavelength division multiplexing, and time division multiplexing Mar. 25, 2003
6532212 Trunking inter-switch links Mar. 11, 2003
6529150 Photonic analog to digital conversion based on temporal and spatial oversampling techniques Mar. 4, 2003
6501871 Active equipment protection methods and apparatus communicatively decoupling data add/drops Dec. 31, 2002
6493124 Looping back signals in optical switches Dec. 10, 2002
6493139 Optical switch Dec. 10, 2002
6490377 Optical interleaver Dec. 3, 2002
6490383 Hybrid spatial and wavelength selector and optical switching matrix including it Dec. 3, 2002
6480309 Optical gate based optical space division switch Nov. 12, 2002
6477287 Polarization-preserving, phase-and-polarization-insensitive, photonic data router Nov. 5, 2002
6473211 Optical crossbar switching and/or routing system Oct. 29, 2002
6459831 WDM utilizing diffraction gratings with polarization dependent loss compensation Oct. 1, 2002
6453357 Method and system for processing fragments and their out-of-order delivery during address translation Sep. 17, 2002
6446131 Bridges and other layer-two devices for forwarding MAC frames Sep. 3, 2002
6441961 Folded optical interleaver with optional routing capability Aug. 27, 2002
6433902 Optical switch Aug. 13, 2002
6430332 Optical switching apparatus Aug. 6, 2002
6426814 Spatially switched router for wireless data packets Jul. 30, 2002

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