ClassID:

223946

H04B10/675 - 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 optical bandwidth of the input signal, e.g. spectral filtering

Recent Application in this class:
#1
20260088913
2026-03-26

PHOTON ARCHITECTURE FOR BI-DIRECTIONAL AND CO-DIRECTIONAL LINKS

#2
20240372626
2024-11-07

Method of Improving Extinction Ratio And Bandwidth of Optical Multiplexers/Demultiplexers

#3
20240283545
2024-08-22

OPTICAL SIGNAL RECEIVING APPARATUS, METHOD AND SYSTEM, OPTICAL LINE TERMINAL, COMPUTER-READABLE STORAGE MEDIUM

#4
20230055270
2023-02-23

FREE SPACE OPTICAL COMMUNICATION TERMINAL AND METHOD

#5
20220407607
2022-12-22

Transceiver, spatial light frequency transmission system and spatial light frequency transmission method

#6
20220376793
2022-11-24

Systems and methods for communication by wavelength toggling

#7
20220244444
2022-08-04

Light-receiving device

#8
20220214454
2022-07-07

OPTICAL IMAGING TRANSMITTER WITH BRIGHTNESS ENHANCEMENT

#9
20220158741
2022-05-19

Wavelength converter and fiber optic transmission system

#10
20220116119
2022-04-14

Individually routable subcarriers

#11
20220116118
2022-04-14

Individually routable subcarriers

#12
20220060273
2022-02-24

Wavelength converter and optical transmission device that includes wavelength converter

#13
20220021465
2022-01-20

Ultraviolet detection with high-speed wavelength-converting layer

#14
20210367678
2021-11-25

Frequency agile microwave radiometer, hyperspectral microwave radiometer and methods of operation

#15
20210266066
2021-08-26

Loss-based wavelength meter

#16
20210167865
2021-06-03

Optical transmitter and/or receiver including an EMI filter, and methods of using the same

#17
20200313775
2020-10-01

Individually routable digital subcarriers

#18
20200127739
2020-04-23

Rx delay line inteferometer tracking in closed-loop module control for communication

#19
20200044748
2020-02-06

A Receiver Assembly Comprising a Radiation Guide

#20
20200014468
2020-01-09

Optical communications system and optical frequency control method

#21
20190379476
2019-12-12

Broadband high-speed wavelength-division multiplexed receiver using multiple photodetectors per channel

#22
20190296831
2019-09-26

Frequency agile microwave radiometer, hyperspectral microwave radiometer and methods of operation

#23
20190268075
2019-08-29

RX delay line inteferometer tracking in closed-loop module control for communication

#24
20190250336
2019-08-15

Fiber coupled laser source pump with wavelength division multiplexer, isolator, tap filter, and photodetector

#25
20190181960
2019-06-13

Individually routable digital subcarriers

#26
20190181955
2019-06-13

Emitter of a monochromatic optical signal

#27
20190146088
2019-05-16

Optical imaging transmitter with brightness enhancement

#28
20190109667
2019-04-11

Low cost intensity-modulated direct-detection (IMDD) optical transmitter and receiver

#29
20190109666
2019-04-11

Wavelength converter and optical transmission device that includes wavelength converter

#30
20190103936
2019-04-04

Process of assembling optical receiver module

#31
20190103921
2019-04-04

Optical receiver with optical demultiplexer

#32
20180337744
2018-11-22

Optical transmitter and optical receiver

#33
20180329065
2018-11-15

Optical imaging transmitter with brightness enhancement

#34
20180329062
2018-11-15

Micro-optics for imaging module with multiple converging lenses per channel

#35
20180329061
2018-11-15

Spinning lidar unit with micro-optics aligned behind stationary window

#36
20180329060
2018-11-15

Lidar unit with an optical link between controller and photosensor layer

#37
20180329035
2018-11-15

Micro-optics for optical imager with non-uniform filter

#38
20180212682
2018-07-26

Ring-resonator modulation of an optical signal

#39
20180159650
2018-06-07

Chirp managed laser generation for next generation passive optical networks

#40
20180076890
2018-03-15

Optical power measurement in a passive optical network

#41
20180054272
2018-02-22

Channel set up method of optical receiver with wavelength tunable filter

#42
20180048394
2018-02-15

Optical receiving apparatus

#43
20170339474
2017-11-23

Transmission method and system for optical burst transport network

#44
20170048016
2017-02-16

Broadband high-speed wavelength-division multiplexed receiver using multiple photodetectors per channel

#45
20160277120
2016-09-22

Radiation receiver apparatus

#46
20160197698
2016-07-07

ALL-OPTICAL ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING (OFDM) DEMULTIPLEXER

#47
20150309259
2015-10-29

Multiport tunable optical filters

#48
20150280852
2015-10-01

Transmission device and optical transmission system

#49
20150236797
2015-08-20

Method and apparatus for selecting wavelength by wavelength tunable optical receiver

#50
20150155948
2015-06-04

Receiving apparatus and method, sending apparatus and method, front-end circuit, modulator, and transceiving system

#51
20150055665
2015-02-26

Receiver optical module for wavelength multiplexed signal

#52
20150009497
2015-01-08

Multiport tunable optical filters

#53
20140270781
2014-09-18

Optical signal demodulator, optical signal demodulating method, and optical add-drop multiplexer

#54
20140241728
2014-08-28

Method and system for receiving an optical-duo-binary signal

#55
20140118737
2014-05-01

Multiport tunable optical filters

#56
20140099105
2014-04-10

Self-characterization tunable optical receiver

#57
20130315267
2013-11-28

Optical communication system, optical transmitter, and transponder

#58
20130011134
2013-01-10

Optical communication device

#59
20120251120
2012-10-04

Multiplexer and modulation arrangements for multi-carrier optical modems

#60
20120012738
2012-01-19

MULTIPLE WAVELENGTH RECEIVER MODULE

#61
20110286740
2011-11-24

DQPSK/DPSK optical receiver with tunable optical filters

#62
20110280571
2011-11-17

Signal processing device and method, and infrared multi-channel receiver

#63
20110103791
2011-05-05

Method and system for monitoring optical dispersion in an optical signal

#64
20110069975
2011-03-24

Digital coherent detection of multi-carrier optical signal

#65
20110008039
2011-01-13

Forward error correction (FEC) enabled photonic integrated circuit (PIC) chips with multiple signal channels

#66
20100284702
2010-11-11

Optical receivers with controllable transfer function bandwidth and gain imbalance

#67
20100166425
2010-07-01

Optical receiver

#68
20100104289
2010-04-29

Optical connecting apparatus

#69
20090238568
2009-09-24

Optical shaping for amplification in a semiconductor optical amplifier

#70
20090175623
2009-07-09

Optical signal detector

#71
20090148171
2009-06-11

DQPSK/DPSK optical receiver with tunable optical fibers

#72
20090060497
2009-03-05

Feedback Controlled Locking of Optical Channel Signals in Optical Receivers in Wavelength Division Multiplexed (WDM) Communication Systems

#73
20090052910
2009-02-26

Automatic dual receiver in a multi-wavelength fiber optic system

#74
20080240725
2008-10-02

Optical receiver and optical transceiver using the same

#75
20080232821
2008-09-25

Optical receiver having transfer function bandwidth selection

#76
20080231945
2008-09-25

Apparatus and methods for optical communication

#77
20080231941
2008-09-25

Optical receiver having FSR phase compensation

#78
20080226306
2008-09-18

GT decoder having bandwidth control for ISI compensation

#79
20080225381
2008-09-18

Delay line interferometer having a stepped delay element

#80
20080205887
2008-08-28

Integrated wavelength selectable photodiode using tunable thin film filters

#81
20080100827
2008-05-01

Full-band optical spectrum analyzer and method

#82
20070217737
2007-09-20

Method and apparatus for optically filtering a communication signal

#83
20070183738
2007-08-09

Monolithic photonic integrated circuit (PIC) with forward error correction (FEC)

#84
20070147847
2007-06-28

Method and apparatus for transmitting a signal using a chirp managed laser (CML) and an optical spectrum reshaper (OSR) before an optical receiver

#85
20070122148
2007-05-31

Method of monitoring and controlling the bit error rate (BER) in an optical communication network

#86
20060067619
2006-03-30

Optical transport network

#87
20060013591
2006-01-19

Receiver for angle-modulated optical signals

#88
20050276613
2005-12-15

FEC enhanced system for an optical communication network

#89
20050265732
2005-12-01

Method and apparatus for receiving frequency modulated signals on an intensity modulated optical carrier

#90
20050213883
2005-09-29

Method of optimizing optical channel signal demultiplexing in a monolithic receiver photonic integrated circuit (RxPIC)

#91
20050207696
2005-09-22

Compact, cost-effective optical-electrical-optical (OEO) converter for an optical transmission network

#92
20050201669
2005-09-15

Optical transport network

#93
20050135778
2005-06-23

Method of providing wider window margin in an eye diagram of a received signal in a transmission system

#94
20050135731
2005-06-23

Optical receiver photonic integrated circuit (RxPIC) system

#95
20050135730
2005-06-23

Method of monitoring and controlling the bit error rate (BER) in an optical communication network

#96
20050135729
2005-06-23

Optical transmission network with a receiver photonic integrated circuit (RxPIC) utilizing an optical service chanel (OSC)

#97
20050129350
2005-06-16

Optical transmission network with transmitter photonic integrated circuit (TxPIC) utilizing an optical service channel (OSC)

#98
20050105919
2005-05-19

Optical receiver and optical transmission system

#99
20050014300
2005-01-20

Optical probe and method of testing employing an interrogation beam or optical pickup

#100
17335321
2023-02-21

High bandwidth individual channel control via optical reference interferometry control system architecture