ClassID:

175465

G02F2/002 - CPC Classification

Classification description:

Demodulating light; Transferring the modulation of modulated light; Frequency-changing of light using optical mixing

Recent Application in this class:
#1
20260036873
2026-02-05

COHERENT COMBINING PHOTOELECTRIC CONVERSION APPARATUS

#2
20250096899
2025-03-20

Apparatus embedded with terahertz transceivers using Gunn diodes

#3
20250038855
2025-01-30

Display glasses in wireless Terahertz communication

#4
20240405877
2024-12-05

Apparatus embedded with terahertz transceivers using resonant tunnelling diodes

#5
20210215994
2021-07-15

Radiation source for emitting terahertz radiation

#6
20200183251
2020-06-11

Terahertz wave generation method and terahertz wave generation device

#7
20190049757
2019-02-14

Reconfigurable integrated-optics-based non-reciprocal devices

#8
20180224489
2018-08-09

Vector network analyzer

#9
20180210086
2018-07-26

Light detection and ranging system

#10
20180143376
2018-05-24

Coherent optical mixer circuit

#11
20170338893
2017-11-23

Digital signal processing of an optical communications signal in a coherent optical receiver

#12
20160091774
2016-03-31

Optical modulator directional measurement system

#13
20150207567
2015-07-23

Radio frequency signal transceiver, coherent radar receiver and method of processing radio frequency signals

#14
20140270619
2014-09-18

Optical modulator directional measurement system

#15
20140231627
2014-08-21

Opto-electronic integrated circuit, array antenna transmitter, array antenna receiver, and transmitter

#16
20130301664
2013-11-14

High spectral-purity carrier wave generation by nonlinear optical mixing

#17
20130161541
2013-06-27

Terahertz wave generator and method of generating terahertz wave

#18
20130121687
2013-05-16

Arrangement for generating a signal having an adjustable time position or phase position

#19
20120327497
2012-12-27

Parametric regenerative oscillators based on opto-electronic feedback and optical regeneration via nonlinear optical mixing in whispering gallery mode optical resonators

#20
20120251031
2012-10-04

Optical counter-phase system and method of RF interference cancellation

#21
20120194893
2012-08-02

Tunable photonic microwave or radio frequency receivers based on electro-optic optical whispering gallery mode resonators

#22
20120147907
2012-06-14

Terahertz wave generator

#23
20120080528
2012-04-05

Dendritic electronic circuits for RFID

#24
20110309269
2011-12-22

Photonic generator of ultra-wide band millimeter wave

#25
20110192978
2011-08-11

Terahertz wave apparatus

#26
20110150485
2011-06-23

Photonic RF frequency conversion

#27
20110128538
2011-06-02

System for generating Raman vibrational analysis signals

#28
20110038032
2011-02-17

Terahertz wave generating method and apparatus

#29
20090263137
2009-10-22

Photonic RF down-converter based on optomechanical oscillation

#30
20090208200
2009-08-20

Synchronous optical signal generating device and synchronous optical signal generating method

#31
20090009259
2009-01-08

ANGLE MODULATOR

#32
20080002980
2008-01-03

Demodulating a signal by performing consecutive beam splitting

#33
20070229937
2007-10-04

Inexpensive terahertz wave generator

#34
20070223932
2007-09-27

Free-space optical hybrid

#35
20070206957
2007-09-06

Method for changing frequency and base station in radio optical fusion communication system

#36
20070058977
2007-03-15

Optical to radio frequency detector

#37
20070019282
2007-01-25

Photonic time-domain electromagnetic signal generator and system using the same

#38
20060251424
2006-11-09

Stabilized optical fiber continuum frequency combs using post-processed highly nonlinear fibers

#39
20060083464
2006-04-20

Millimeter wave oscillator using fiber Bragg grating

#40
20050141582
2005-06-30

Apparatus and method for generating optical carrier for microwave and millimeterwave photonics system

#41
20050063040
2005-03-24

Wideband four-wave-mixing wavelength converter

#42
20050013612
2005-01-20

Multiple wavelength photonic oscillator

#43
19055451
2025-05-20

Display glasses with wireless THz transceiver for bio-sensing

#44
18487621
2024-05-28

Apparatus embedded with terahertz transceivers using difference frequency generation

#45
18204919
2023-10-17

Terahertz transceiver using laser sources