ClassID:

224536

H04J14/0234 - CPC Classification

Classification description:

Optical multiplex systems; Wavelength-division multiplex systems; Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation; Wavelength allocation for communications one-to-all, e.g. broadcasting wavelengths in WDM passive optical networks [WDM-PON] for downstream transmission using multiple wavelengths

Recent Application in this class:
#1
20250233667
2025-07-17

COMMUNICATION APPARATUS AND OPTICAL PATH OPENING METHOD

#2
20240305398
2024-09-12

TRANSMISSION DEVICE, TRANSMISSION METHOD, RECEPTION DEVICE, AND RECEPTION METHOD

#3
20230216601
2023-07-06

Systems and methods for coarse wavelength division multiplexing premise level data communication

#4
20230188242
2023-06-15

Transmission device, transmission method, reception device, and reception method

#5
20230074322
2023-03-09

EXPANDED SINGLE FIBER COMBINING MODULE

#6
20220360355
2022-11-10

Optical demultiplexer, optical separation device, optical transmission system, and optical transmission method

#7
20220353004
2022-11-03

Optical communications module link extender including ethernet and PON amplification

#8
20220337333
2022-10-20

Scalable, ultra-low-latency photonic tensor processor

#9
20210328703
2021-10-21

Time and wavelength division multiplexing

#10
20210281351
2021-09-09

Optical network unit registration method for wavelength-selected wavelength division multiplexing passive optical network

#11
20200371292
2020-11-26

Transmission device and transmission system

#12
20200358549
2020-11-12

Striping of signal to groups of nodes for flexible service group sizing

#13
20200083977
2020-03-12

Optical network unit registration method for wavelength-selected wavelength division multiplexing passive optical network

#14
20200067623
2020-02-27

Transmission device, transmission method, reception device, and reception method

#15
20200044765
2020-02-06

Systems and methods for full duplex coherent optics

#16
20190115994
2019-04-18

Striping of signal to groups of nodes for flexible service group sizing

#17
20180302183
2018-10-18

Reduced power consumption for digital signal processing (DSP)-based reception in time-division multiplexing (TDM) passive optical networks (PONs)

#18
20150304036
2015-10-22

Interleaved Bidirectional Sub-Nyquist Transmission with Overlapping Counter-Propagating Signal Spectral Bands

#19
20150043916
2015-02-12

Method and system for providing dedicated service on a passive optical network

#20
20150043907
2015-02-12

Optical supervisory channel

#21
20140270775
2014-09-18

Method for registering optical network unit in telecommunications network and optical network unit therefor

#22
20130236180
2013-09-12

Distributed antenna system and method

#23
20130183039
2013-07-18

Selectable multiple-wavelength access for optical network units in arrayed waveguide based wavelength division multiplexing passive optical network

#24
20120281984
2012-11-08

Method and apparatus for enabling multiple passive optical networks to share one or more sources

#25
20120275786
2012-11-01

Optical line termination node and passive optical network

#26
20120257894
2012-10-11

Dynamic communication bandwidth allocation method, computer-readable medium storing dynamic communication bandwidth allocation program, semiconductor chip, and PON system

#27
20120237217
2012-09-20

Optically switched communication network

#28
20120020666
2012-01-26

Wavelength assignment for multiple operator support

#29
20110274439
2011-11-10

Communication system comprising a tunable laser

#30
20090310967
2009-12-17

Method and apparatus for transmitting multiple channels in a wavelength division multiplexed (WDM) optical communication system with reduced raman crosstalk and nonlinear distortions

#31
20060228117
2006-10-12

Optical transmission device and optical transmission system

#32
20050172328
2005-08-04

FTTH PON that O/E converts 1310 nm for output to transmitters for E/O as 1550 nm

#33
20050129404
2005-06-16

Apparatus for providing broadcasting service through overlay structure in WDM-PON

#34
17370592
2023-08-01

Systems and methods for full duplex coherent optics

#35
15707956
2020-01-21

Coexistence communication infrastructure for dense wavelength division multiplexing and passive optical networks