ClassID:

223943

H04B10/672 - CPC Classification

Classification description:

Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication; Receivers; Non-coherent receivers, e.g. using direct detection; Optical arrangements in the receiver for controlling the input optical signal for controlling the power of the input optical signal

Sub-classes:
Recent Application in this class:
#1
20260149506
2026-05-28

CONTROLLING RECEIVER LOCAL OSCILLATOR POWER IN A COHERENT MODEM TO IMPROVE SNR AND INCREASE RECEIVER DYNAMIC RANGE

#2
20250211338
2025-06-26

OPTICAL RECEIVING MODULE, OPTICAL RECEIVING DEVICE, AND FREQUENCY ADJUSTMENT METHOD

#3
20230317694
2023-10-05

ARCHITECTURE AND DEVICE USING OPTICAL ELEMENT AND COMPUTER CHIP FOR OPTICAL SIGNAL TRANSMISSION

#4
20230188212
2023-06-15

AUTONOMOUS MINING SYSTEM BASED ON REAL-TIME DIGITAL VIDEO COMMUNICATION THAT USES ETHERNET AND OPTICAL TECHNOLOGIES

#5
20230072203
2023-03-09

Signal processing device, signal processing method, receiver, and optical communication system

#6
20220255625
2022-08-11

Method for determining optical signal power change and power calculation apparatus

#7
20220239381
2022-07-28

Receiver, optical line terminal, and passive optical network system

#8
20210409116
2021-12-30

Power-over-fiber system and method for operating a power-over-fiber system

#9
20210109281
2021-04-15

Multiple stage Bragg gratings in multiplexing applications

#10
20200400878
2020-12-24

Multiple stage Bragg gratings in multiplexing applications

#11
20200336217
2020-10-22

Transmitter for throughput increases for optical communications

#12
20200336216
2020-10-22

System for throughput increases for optical communications

#13
20200014467
2020-01-09

VISIBLE LIGHT COMMUNICATION (VLC) OPTICAL RECEIVER

#14
20190349089
2019-11-14

Power allocation for visible light communication

#15
20190253143
2019-08-15

FSO communication system

#16
20180234185
2018-08-16

MODE DIVISION MULTIPLEXED PASSIVE OPTICAL NETWORK

#17
20180091232
2018-03-29

Active demodulation systems and methods for optical signals

#18
20180069633
2018-03-08

Optical transmission device and optical communication system

#19
20180041272
2018-02-08

Methods for determining receiver coupling efficiency, link margin, and link topology in active optical cables

#20
20170163339
2017-06-08

Methods for determining receiver coupling efficiency, link margin, and link topology in active optical cables

#21
20160277120
2016-09-22

Radiation receiver apparatus

#22
20150198768
2015-07-16

Fiber optic circuit breaker

#23
20150195046
2015-07-09

Optical receiver for compensating DC offset

#24
20150117871
2015-04-30

Optical level control apparatus and optical reception apparatus

#25
20140064724
2014-03-06

Receiving device and receiving method

#26
20130121707
2013-05-16

Linear burst mode receiver

#27
20130084078
2013-04-04

Technique for Increasing Signal Gain

#28
20110243572
2011-10-06

Optical receiver and communication system

#29
20110229153
2011-09-22

OPTICAL RECEIVER

#30
20100322633
2010-12-23

Transmission system and method of correcting tilt of the transmission system

#31
20100135672
2010-06-03

Optical reception device, optical receiving method, and optical transmission apparatus

#32
20090208224
2009-08-20

Optical field receiver, optical multilevel signal receiver, and optical transmission system

#33
20080298810
2008-12-04

Optical transponder

#34
20080226291
2008-09-18

Optical receiving apparatus and optical level adjusted quantity setting method therefor

#35
20080175603
2008-07-24

Optical receiver for visible light communication and light communication system using the same

#36
20070073447
2007-03-29

Method of making an optical transponder

#37
20070058989
2007-03-15

In-situ power monitor providing an extended range for monitoring input optical power incident on avalanche photodiodes

#38
20060215545
2006-09-28

Controlling loss of signal thresholds in an optical receiver

#39
20050111845
2005-05-26

Apparatus, system and methods for modifying operating characteristics of optoelectronic devices

#40
20050089334
2005-04-28

Protocol independent managed optical system

#41
16953498
2021-12-28

Transmit optical power adjustment based on receive optical power measurements

#42
16537387
2020-08-25

Optical interconnect computing module tolerant to changes in position and orientation

#43
16402558
2020-07-14

Optical coherent receiver

#44
16174220
2019-10-22

Optical line terminal and method for managing passive optical network implemented thereon

#45
16142127
2018-12-25

Methods for determining receiver coupling efficiency, link margin, and link topology in active optical cables

#46
14214271
2019-09-10

Optical interconnect computing module tolerant to changes in position and orientation