ClassID:

225982

H04L27/233 - CPC Classification

Classification description:

Modulated-carrier systems; Phase-modulated carrier systems, i.e. using phase-shift keying; Demodulator circuits; Receiver circuits using non-coherent demodulation

Sub-classes:
Recent Application in this class:
#1
20260005903
2026-01-01

DEMODULATION METHOD OF DPSK SIGNALS, DEMODULATION SYSTEM, AND COMMUNICATION DEVICE THEREOF

#2
20230336124
2023-10-19

Demodulation device and demodulation method

#3
20220278755
2022-09-01

Method for transmitting or receiving signal in low-bit quantization system and device therefor

#4
20210368440
2021-11-25

Non-coherent wake-up signal

#5
20210143950
2021-05-13

Architecture for non-coherent communication in wireless networks

#6
20210119846
2021-04-22

Non-coherent waveforms for wireless communication

#7
20210119840
2021-04-22

Non-coherent waveforms for wireless communication

#8
20200386791
2020-12-10

Pattern acquisitions in equivalent time sampling systems

#9
20200287698
2020-09-10

Communication hardware virtualization

#10
20200021414
2020-01-16

Wireless communication method, wireless communications apparatus, and wireless communications system

#11
20190129569
2019-05-02

Non-orthogonal demodulation module, touch system and non-orthogonal demodulation method

#12
20190089562
2019-03-21

Wireless communication system and communication method

#13
20190052295
2019-02-14

Polar receiver system and method for Bluetooth communications

#14
20180375609
2018-12-27

Collision Detection Using a Multiple Symbol Noncoherent Soft Output Detector

#15
20180176047
2018-06-21

Demodulation and decoding

#16
20180159473
2018-06-07

Systems and methods for synchronous demodulation

#17
20180123834
2018-05-03

Device and method for detecting transmission signal

#18
20180103431
2018-04-12

Wake up radio frame with spectrum spreading based single carrier

#19
20170373909
2017-12-28

Method to generate a wireless waveform for use in a wireless communication system, a wireless communication system and computer program products thereof

#20
20170366300
2017-12-21

Collision Detection Using a Multiple Symbol Noncoherent Soft Output Detector

#21
20170338985
2017-11-23

Ultra low power wideband non-coherent binary phase shift keying demodulator using first order sideband filters with phase 180 degree alignment

#22
20170257241
2017-09-07

Low power wideband non-coherent binary phase shift keying demodulator to align the phase of sideband differential output comparators for reducing jitter, using first order sideband filters with phase 180 degree alignment

#23
20170180173
2017-06-22

Radio network node, wireless device and methods thereof using GMSK modulation applying negative modulation index

#24
20170094623
2017-03-30

Detection in dynamic channels with high carrier frequency offset

#25
20170078125
2017-03-16

Radio communication

#26
20170012676
2017-01-12

Quadrature demodulator for a very high bit rate RFID receiver

#27
20160323056
2016-11-03

Method and device for transmitting preamble sequence

#28
20160241426
2016-08-18

System and method for transmitting data with useful signal detection at the receiver end

#29
20160218995
2016-07-28

Method and apparatus for phase-based multi-carrier modulation (MCM) packet detection

#30
20160191206
2016-06-30

Collision detection using a multiple symbol noncoherent soft output detector

#31
20160142240
2016-05-19

Method and apparatus for multi-carrier modulation (MCM) packet detection based on phase differences

#32
20150318955
2015-11-05

Decoding method and apparatus

#33
20150215073
2015-07-30

Collision detection using a multiple symbol noncoherent soft output detector

#34
20150180520
2015-06-25

Interference cancellation and improved signal-to-noise ratio circuits, systems, and methods

#35
20140358464
2014-12-04

Equivalent-time sampling technique for non-coherently modulated signals

#36
20140269949
2014-09-18

Method and apparatus for phase-based multi-carrier modulation (MCM) packet detection

#37
20140269948
2014-09-18

Method and apparatus for multi-carrier modulation (MCM) packet detection based on phase differences

#38
20140016947
2014-01-16

Method of decoding optical data signals

#39
20130301682
2013-11-14

Light monitoring system with antenna diversity

#40
20130300576
2013-11-14

Water monitoring system using a random phase multiple access system

#41
20130272278
2013-10-17

Electric monitoring system using a random phase multiple access system

#42
20130202062
2013-08-08

Collision detection using a multiple symbol noncoherent soft output detector

#43
20130142286
2013-06-06

Wireless communications device having waveform banks with frequency offset and related methods

#44
20120224549
2012-09-06

RSSI measurement mechanism in the presence of pulsed jammers

#45
20120219037
2012-08-30

Light monitoring system using a random phase multiple access system

#46
20120188970
2012-07-26

Forward error correction media access control system

#47
20120170691
2012-07-05

INTERFERENCE CANCELLATION AND IMPROVED SIGNAL-TO-NOISE RATIO CIRCUITS, SYSTEMS, AND METHODS

#48
20120155573
2012-06-21

Phase Shifting Circuitry

#49
20120134391
2012-05-31

Power detection in a spread spectrum system

#50
20120114015
2012-05-10

Synchronized system configuration

#51
20120113858
2012-05-10

Handover processing in multiple access point deployment system

#52
20120093208
2012-04-19

Selective coherent and non-coherent demodulation methods and apparatuses

#53
20110320908
2011-12-29

User data broadcast mechanism

#54
20110219283
2011-09-08

Signal quality measurement system

#55
20110134965
2011-06-09

RSSI MEASUREMENT MECHANISM IN THE PRESENCE OF PULSED JAMMERS

#56
20110131468
2011-06-02

Error detection system

#57
20110128938
2011-06-02

Handover processing in multiple access point deployment system

#58
20110116472
2011-05-19

HANDOVER PROCESSING IN MULTIPLE ACCESS POINT DEPLOYMENT SYSTEM

#59
20110090990
2011-04-21

Demodulation apparatus, demodulation method, and electronic device

#60
20100296610
2010-11-25

DEMODULATION DEVICE

#61
20100281339
2010-11-04

Forward error correction media access control system

#62
20100272090
2010-10-28

Apparatus and method for interferometric frequency modulation to exploit cooperative interference in wireless communications

#63
20100232548
2010-09-16

Demodulation and decoding for frequency modulation (FM) receivers with radio data system (RDS) or radio broadcast data system (RBDS)

#64
20100208853
2010-08-19

Feedback adjustable constellation de-mapper

#65
20100090761
2010-04-15

PSK demodulator using time-to-digital converter

#66
20090154611
2009-06-18

METHODS AND APPARATUS FOR LOW OVERHEAD MSK DECODING

#67
20090016467
2009-01-15

Noncoherent symbol clock recovery subsystem

#68
20080309436
2008-12-18

MULTI-INPUT MULTI-OUTPUT AMPLIFIER, AN ACTIVE INDUCTOR, A FILTER AND A RADIO COMMUNICATION DEVICE

#69
20080298511
2008-12-04

Soft-Output Demodulation Apparatus and Method

#70
20080101506
2008-05-01

Receiver for the geosynchronous (GEO) satellite reverse link using tail-biting code

#71
20080061870
2008-03-13

Apparatus and methods for demodulating a signal

#72
20080025438
2008-01-31

METHOD AND APPARATUS FOR DEMODULATING SATURATED DIFFERENTIAL PSK SIGNALS

#73
20080024208
2008-01-31

Quadrature demodulator

#74
20070230620
2007-10-04

Method and apparatus for synchronizing alternating quadratures differential binary phase shift keying modulation and demodulation arrangements

#75
20070211831
2007-09-13

Signal processing apparatus and method for decision directed symbol synchronisation

#76
20070071136
2007-03-29

System and method for executing preamble detection, symbol timing recovery, and frequency offset estimation

#77
20070058741
2007-03-15

Selectively changing demodulation modes depending on quality of received signal or a control signal

#78
20070030926
2007-02-08

Iterative non-coherent CPM decoder

#79
20070030924
2007-02-08

An Iterative Frequency Offset Estimator for PSK Modulation

#80
20070030923
2007-02-08

High accuracy non data-aided frequency estimator for M-ary phase shift keying modulation

#81
20060291592
2006-12-28

Multi-symbol noncoherent CPM detector

#82
20060285612
2006-12-21

Using soft bit decisions to improve DPSK demodulation of SPS data

#83
20060233220
2006-10-19

Wireless telephone with spectral spread in sampled voice

#84
20060230089
2006-10-12

Frequency estimation