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Class Information
Number: 398/42
Name: Optical communications > Duplex > Wavelength division
Description: Subject matter wherein bi-directional transmission over a single fiber is permitted by causing two light beams to travel in different wavelength bands and different directions within the same medium.

Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8687956 Standby restoration signaling for optical networks Apr. 1, 2014
8655181 Optical transmission/reception module Feb. 18, 2014
8644706 Distributed cable modem termination system with software reconfigurable MAC and PHY capability Feb. 4, 2014
8463132 Integrated laser and photodetector chip for an optical subassembly Jun. 11, 2013
8391709 MxN wavelength selective switch Mar. 5, 2013
8340522 Filter assembly and optical module using same Dec. 25, 2012
8311412 Distributed cable modem termination system Nov. 13, 2012
8285144 Optical device for rearranging wavelength channels Oct. 9, 2012
8280253 Optical telecommunications network terminal, an installation including the terminal, and a method of detecting a break in optical transmission means Oct. 2, 2012
8260133 Standby restoration signaling for optical networks Sep. 4, 2012
8238752 PON (passive optical network) station side apparatus, PON uplink line communication method, and program recording medium Aug. 7, 2012
8233794 Hitless MxN wavelength selective switch Jul. 31, 2012
8218967 Optical switching systems and methods Jul. 10, 2012
8144761 Pulse transmission method, pulse transmission system, transmitter, and receiver Mar. 27, 2012
8050257 Network with a fast-switching optical core Nov. 1, 2011
8041222 Radio over fiber link apparatus of time division duplex scheme Oct. 18, 2011
7920493 Fast session setup extensions to H.324 Apr. 5, 2011
7769296 Arrangement for reducing multiplexing and demultiplexing cost in ultra long haul (ULH) all-optical networks by minimizing number of required mux/demux groups Aug. 3, 2010
7734180 Single fibre bidirectional optical transmission system and single fibre bidirectional optical amplifier Jun. 8, 2010
7711271 Wave division multiplexed optical transport system utilizing optical circulators to isolate an optical service channel May. 4, 2010
7706691 Transmission device having optical fiberhigh definition digital audio-video data interface Apr. 27, 2010
7653315 Bi-directional optical monitor interconnect Jan. 26, 2010
7639909 Method and apparatus for spatial domain multiplexing in optical fiber communications Dec. 29, 2009
7613391 Optical signal switching device for use in an optical protection network Nov. 3, 2009
7483638 Optical transceiver Jan. 27, 2009
7460788 Transmitting and receiving device Dec. 2, 2008
7447439 Optical duplexer and optical triplexer Nov. 4, 2008
7447437 Interface arrangement for opto-electronic data transfer, and plug-in opto-electronic transceiver Nov. 4, 2008
7440702 Method for transmitting digital image signal, digital image transmitting device, digital image sending device and digital image receiver Oct. 21, 2008
7418208 Optoelectronic transceiver for a bidirectional optical signal transmission Aug. 26, 2008
7394986 Flat top optical filtering component Jul. 1, 2008
7394771 Apparatus and method for data communication including establishing communication using tone signal Jul. 1, 2008
7359592 Single fiber links for full duplex aircraft data network Apr. 15, 2008
7359640 Optical coupling device and method for bidirectional data communication over a common signal line Apr. 15, 2008
7346280 Bi-directional long haul/ultra long haul optical communication link Mar. 18, 2008
7330617 Wavelength selective optical switch, and optical device provided with spectroscopic function Feb. 12, 2008
7286767 Optical transceiver over single communication link Oct. 23, 2007
7269349 Method of and device for performing bi-directional transmission using a single-wire Sep. 11, 2007
7254331 System and method for multiple bit optical data transmission in memory systems Aug. 7, 2007
7242860 Optical protection switching using 2 by 2 switching functions Jul. 10, 2007
7215843 Optical switching apparatus and optical switching method May. 8, 2007
7212747 Optical transmission device and optical transmission method for transmitting a burst radio signal May. 1, 2007
7200335 Optical transceiver Apr. 3, 2007
7139487 Light burst transmission/reception control system, parent station device used in the same, child station device, and light burst transmission/reception control method Nov. 21, 2006
7120357 WDM device, client device, network, system and method for allocating wavelength of WDM to a client signal Oct. 10, 2006
7110672 Optical transmission system for frequency-multiplexed signal Sep. 19, 2006
7088926 Electro-optical connector module Aug. 8, 2006
7058309 Optoelectronic transceiver Jun. 6, 2006
7039270 Optical transmission system May. 2, 2006
7035540 Optical fiber ring communication system Apr. 25, 2006

1 2 3 4

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