ClassID:

224143

H04B2210/077 - CPC Classification

Classification description:

Indexing scheme relating to optical transmission systems; Monitoring an optical transmission system using a supervisory signal using a separate fibre

Recent Application in this class:
#1
20230318703
2023-10-05

Optical monitor device

#2
20100092178
2010-04-15

Method and apparatus for sensing channel availability in wireless networks

#3
20100008666
2010-01-14

Optical communication system supporting detection and communication networks

#4
20090175616
2009-07-09

Automatic power restoring method and optical communication system

#5
20080317461
2008-12-25

Automatic power restoring method and optical communication system

#6
20080303679
2008-12-11

Network interface device communication via power line

#7
20080008469
2008-01-10

Communication apparatus, communication line diagnosis method, program and recording medium

#8
20060285846
2006-12-21

WDM system

#9
20060192434
2006-08-31

Network interface device communication via power line

#10
20060188266
2006-08-24

Optical network terminal with wide input range power converter

#11
20060188090
2006-08-24

Power supply housing for network interface device

#12
20060152796
2006-07-13

Optical amplifier with pump light source control for Raman amplification

#13
20060013583
2006-01-19

Optical transmission system

#14
20050254825
2005-11-17

System and method for automatic chromatic dispersion compensation

#15
20050220387
2005-10-06

Optical transmission system, optical repeating apparatus, and quality supervising method

#16
20050218310
2005-10-06

Signal light interruption detecting method and optical amplifier using same

#17
20050213990
2005-09-29

Gain monitoring method for optical amplifier and apparatus thereof

#18
20050158056
2005-07-21

Optical transmission system for compensating for transmission loss

#19
20050057794
2005-03-17

Raman excitation control method and optical transmission system using the same

#20
20050041968
2005-02-24

Optical transmission system

#21
20050024714
2005-02-03

Optical amplifier with pump light source control for Raman amplification