Patents-Review.com
ClassID:

225981 ⎘

H04L27/2278 - CPC Classification

Classification description:

Modulated-carrier systems; Phase-modulated carrier systems, i.e. using phase-shift keying; Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses the received modulated signals using correlation techniques, e.g. for spread spectrum signals

Recent Application in this class:
#1
20260067139
2026-03-05

RADIO FREQUENCY (RF) COMMUNICATIONS SYSTEM HAVING RF NODES THAT DETERMINE A DESPREADING SEQUENCE AND PHASE AND TIMING OFFSETS FOR FREQUENCY AGILITY

 #2
20250300874
2025-09-25

JOINT INDEX MODULATION AND MULTIPLE INPUT MULTIPLE OUTPUT (MIMO) SENSING IN JOINT COMMUNICATION AND SENSING (JCS) SYSTEMS

 #3
20250168627
2025-05-22

REDUCTION OF TIME-DOMAIN CORRELATION FOR SECURE SOUNDING SIGNAL

 #4
20240323067
2024-09-26

RADIO FREQUENCY (RF) COMMUNICATIONS SYSTEM HAVING RF NODES THAT DETERMINE A DESPREADING SEQUENCE AND PHASE AND TIMING OFFSETS FOR FREQUENCY AGILITY

 #5
20240235908
2024-07-11

RADIO FREQUENCY (RF) COMMUNICATIONS SYSTEM HAVING RF NODES THAT DETERMINE A DESPREADING SEQUENCE AND PHASE AND TIMING OFFSETS FOR FREQUENCY AGILITY

 #6
20240106689
2024-03-28

SYSTEMS AND METHODS FOR IMPROVED RANGE AND PERFORMANCE FOR LOW POWER RADIOS

 #7
20230344685
2023-10-26

A COMMUNICATION UNIT FOR SOFT-DECISION DEMODULATION AND METHOD THEREFOR

 #8
20230261912
2023-08-17

Communication unit for soft-decision demodulation and method therefor

 #9
20230146473
2023-05-11

Frequency-drift compensation in chirped-pulse-based distributed acoustic sensing

 #10
20220311650
2022-09-29

Power-saving sampling receiver with non-coherent sampling with one sample per bit

 #11
20210364634
2021-11-25

Software defined automotive radar systems

 #12
20210344533
2021-11-04

Systems and methods for identifying polarization/quadrature channels in dual- polarization coherent optical transmission

 #13
20210250761
2021-08-12

REDUCTION OF TIME-DOMAIN CORRELATION FOR 11AZ SECURE SOUNDING SIGNAL

 #14
20210184903
2021-06-17

Systems and methods for identifying polarization/quadrature channels in dual-polarization coherent optical transmission

 #15
20210099200
2021-04-01

High-order PSK signaling (HOPS) techniques for low-power spread spectrum communications

 #16
20210058280
2021-02-25

Driver architecture for multiphase and amplitude encoding transmitters

 #17
20200383109
2020-12-03

Information transmission method, user equipment, and base station

 #18
20200322209
2020-10-08

Method, device for compensating imbalance between I path and Q path of receiver, and non-transitory computer readable storage medium

 #19
20200136870
2020-04-30

Techniques for phase modulated signals having poor autocorrelation

 #20
20190334582
2019-10-31

Apparatus for providing communication services and methods thereof

 #21
20190190638
2019-06-20

Communication using chaotic waveforms

 #22
20190158333
2019-05-23

Training field assisted medium sensing across multiple radio access technologies

 #23
20190094353
2019-03-28

Software defined automotive radar systems

 #24
20190068241
2019-02-28

High-order PSK signaling (HOPS) techniques for low-power spread spectrum communications

 #25
20190068240
2019-02-28

Fallthrough correlation techniques for arbitrary-phase spread spectrum waveforms

 #26
20190041528
2019-02-07

Method for operating a GNSS receiver, with GNSS signal deselection

 #27
20180323910
2018-11-08

Short PUCCH in uplink sPUCCH

 #28
20180231655
2018-08-16

Adaptive transmission and interference cancellation for MIMO radar

 #29
20180227915
2018-08-09

Information transmission method, user equipment, and base station

 #30
20180198485
2018-07-12

Apparatus for providing communication services and methods thereof

 #31
20180123834
2018-05-03

Device and method for detecting transmission signal

 #32
20180100918
2018-04-12

Software defined automotive radar systems

 #33
20180048502
2018-02-15

Receiving spread spectrum signals

 #34
20180006769
2018-01-04

Short PUCCH in uplink sPUCCH

 #35
20180006668
2018-01-04

Method and device for generating a decoded and synchronized output

 #36
20170373782
2017-12-28

Communication using chaotic waveforms

 #37
20170293027
2017-10-12

Adaptive transmission and interference cancellation for MIMO radar

 #38
20170117939
2017-04-27

Apparatus for providing communication services and methods thereof

 #39
20170041103
2017-02-09

Short PUCCH in uplink sPUCCH

 #40
20170012808
2017-01-12

Very high bit rate RFID receiver

 #41
20170012676
2017-01-12

Quadrature demodulator for a very high bit rate RFID receiver

 #42
20160338056
2016-11-17

Information transmission method, user equipment, and base station

 #43
20160285659
2016-09-29

Apparatus and method for burst signal detection

 #44
20160241426
2016-08-18

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

 #45
20160204889
2016-07-14

Communication systems and methods

 #46
20160174138
2016-06-16

Method of processing received digitized signals and mobile radio communication terminal device

 #47
20160006558
2016-01-07

Synchronisation using pilots and data

 #48
20150312065
2015-10-29

JOINT SEQUENCE ESTIMATION OF SYMBOL AND PHASE WITH HIGH TOLERANCE OF NONLINEARITY

 #49
20150295741
2015-10-15

Signal processing apparatus, signal processing method, and signal processing program

 #50
20150270926
2015-09-24

Method and system for forward error correction decoding with parity check for use in low complexity highly-spectrally efficient communications

 #51
20150215145
2015-07-30

Device for carrier phase recovery

 #52
20150149874
2015-05-28

Reliability metric for decoding hypothesis

 #53
20150138016
2015-05-21

Method for generating unambiguous correlation function for CBOC (6,1,1/11) signal based on partial correlation functions, apparatus for tracking CBOC signals and satellite navigation signal receiver system

 #54
20140247904
2014-09-04

Pilot symbol generation for highly-spectrally-efficient communications

 #55
20140140434
2014-05-22

Concept for transmitting and receiving an information symbol

 #56
20130243187
2013-09-19

Physical key-protected one time pad

 #57
20120288275
2012-11-15

Polarization and differential-group-delay insensitive digital timing error detection for polarization-multiplexed coherent optical systems

 #58
20120242324
2012-09-27

Frequency error detection apparatus

 #59
20120163504
2012-06-28

Automatic frequency offset compensation in zero-intermediate frequency receivers using minimum-shift keying (MSK) signaling

 #60
20110306315
2011-12-15

Quick detection of signaling in a wireless communication system

 #61
20110140855
2011-06-16

Signal processing device and method

 #62
20110096872
2011-04-28

Correlation device and method

 #63
20110038440
2011-02-17

Process for Receiving a Signal and a Receiver

 #64
20090168849
2009-07-02

Method and apparatus for symbol synchronization for an 802.15.4 radio platform

 #65
20090154601
2009-06-18

Communications device and related method with improved acquisition estimates of frequency offset and phase error

 #66
20090103656
2009-04-23

Correlation device and method for different modulated signals

 #67
20090074117
2009-03-19

Pulse radio receiver

 #68
20080285631
2008-11-20

SPREAD SPECTRUM COMMUNICATION METHOD AND SYSTEM USING DIVERSITY CORRELATION AND MULTI-USER DETECTION

 #69
20080025431
2008-01-31

TRANSMITTING APPARATUS AND METHOD, RECEIVING APPARATUS AND METHOD

 #70
20070121765
2007-05-31

Timing estimator in OQPSK demodulator

 #71
20070060095
2007-03-15

Quick detection of signaling in a wireless communication system

 #72
20070025477
2007-02-01

Synchronization technique for serial modulated waveforms

 #73
20060166619
2006-07-27

Method for adjusting acquisition speed in a wireless network

 #74
20060062285
2006-03-23

Enhanced method for demodulating constant-amplitude multi-code biorthogonal modulation signals

 #75
20050207519
2005-09-22

Digital radio receiver

 #76
20050036571
2005-02-17

System and method for low power clear channel assessment

 #77
16861370
2020-09-22

Cross-product detection method for a narrowband signal under a wide range of carrier frequency offset (CFO) using multiple frequency bins

 #78
15879369
2019-02-26

Wireless radio receiver that performs adaptive phase tracking

 #79
15879318
2019-02-26

Wireless radio receiver that performs adaptive phase tracking

 #80
15876421
2019-04-30

Reduced-power detection of wireless packets using decimated preamble correlation

 #81
15668078
2018-09-18

Coherent amplification using phase modulation mediated two-beam coupling

 #82
15605614
2019-01-15

Code division multiple access (CDMA) Manet

 #83
15481648
2017-06-27

Adaptive transmission and interference cancellation for MIMO radar

 #84
14708809
2016-04-26

Frequency-domain windowing for precision position, navigation, and timing (PNT) estimation