ClassID:

225908

H04L2027/0069 - CPC Classification

Classification description:

Modulated-carrier systems; Carrier regulation; Control loops for carrier regulation; Elements of loops Loop filters

Recent Application in this class:
#1
20260106782
2026-04-16

KALMAN FILTER BASED PHASE-LOCKED LOOP WITH RE-ENCODING BASED PHASE DETECTOR

#2
20250211241
2025-06-26

LINEAR PREDICTION TO SUPPRESS SPURS IN A DIGITAL PHASE-LOCKED LOOP

#3
20230208675
2023-06-29

Receiver synchronization

#4
20230094645
2023-03-30

Linear prediction to suppress spurs in a digital phase-locked loop

#5
20210297296
2021-09-23

Phase/frequency tracking transceiver

#6
20210288836
2021-09-16

Receiver synchronization

#7
20210152324
2021-05-20

Receiver with enhanced clock and data recovery

#8
20200217891
2020-07-09

Testing device and testing method for testing a device under test

#9
20200195354
2020-06-18

DSP-free coherent receiver

#10
20200052873
2020-02-13

Receiver with enhanced clock and data recovery

#11
20180323951
2018-11-08

Receiver with enhanced clock and data recovery

#12
20180248678
2018-08-30

Carrier frequency offset tracking circuit and method

#13
20180219704
2018-08-02

Clock data recovery with non-uniform clock tracking

#14
20180091352
2018-03-29

Symbol synchronization method and apparatus

#15
20170099132
2017-04-06

Receiver with enhanced clock and data recovery

#16
20160127160
2016-05-05

Circuit, communication unit and method for VCO frequency adjustment

#17
20160021662
2016-01-21

Digital auto frequency control for a general purpose if subsystem with multi-modulation schemes

#18
20150078503
2015-03-19

High-frequency signal processing device and wireless communication system

#19
20140198884
2014-07-17

Communication system with frequency synthesis mechanism and method of operation thereof

#20
20140112423
2014-04-24

Method and faculty to measure and compensate DCO frequency distortions using a DPLL

#21
20140072024
2014-03-13

Carrier recovery in amplitude and phase modulated systems

#22
20140064347
2014-03-06

Systems and methods for carrier phase recovery

#23
20130242820
2013-09-19

Digital filter control for filter tracking speedup

#24
20130231071
2013-09-05

Hysteresis nonlinear state machine with overlapping thresholds for automatic frequency control

#25
20130156129
2013-06-20

Method and faculty to measure and compensate DCO frequency distortions using a DPLL

#26
20130051290
2013-02-28

High-frequency signal processing device and wireless communication system

#27
20120314814
2012-12-13

Phase offset compensator

#28
20120224657
2012-09-06

Carrier recovery circuit and demodulation circuit under quasi-coherent detection method

#29
20120177150
2012-07-12

RECEIVER

#30
20120106678
2012-05-03

Method and apparatus to improve acquisition of a quadrature amplitude modulated (QAM) signal having a frequency offset

#31
20120076252
2012-03-29

Synchronizing circuit, synchronizing method, and receiving system

#32
20120063521
2012-03-15

Fractional-N phase locked loop, operation method thereof, and devices having the same

#33
20120063520
2012-03-15

Semiconductor integrated circuit, radio communication device and time to digital converter

#34
20120057653
2012-03-08

Method for tuning a digital compensation filter within a transmitter, and associated digital compensation filter

#35
20120033773
2012-02-09

Phase interpolation-based clock and data recovery for differential quadrature phase shift keying

#36
20110311008
2011-12-22

Apparatus and method thereof for clock and data recovery of N-PAM encoded signals using a conventional 2-PAM CDR circuit

#37
20110236025
2011-09-29

SUB-RATE SAMPLING IN COHERENT OPTICAL RECEIVERS

#38
20110158329
2011-06-30

SYSTEM AND METHOD FOR BI-PHASE MODULATION DECODING

#39
20110148676
2011-06-23

DIGITAL PHASE LOCKED LOOP WITH DITHERING

#40
20110111718
2011-05-12

Hysteresis nonlinear state machine with overlapping thresholds for automatic frequency control

#41
20110002425
2011-01-06

CARRIER FREQUENCY OFFSET SYNCHRONIZER FOR OFDM RECEIVER AND METHOD

#42
20100311372
2010-12-09

Correlation-driven adaptation of frequency control for a RF receiver device

#43
20100289544
2010-11-18

Receiver with enhanced clock and data recovery

#44
20100284494
2010-11-11

Blind carrier tracking loop

#45
20100283654
2010-11-11

Digital phase locked loop with dithering

#46
20100260233
2010-10-14

Phase tracking in frequency domain in a wireless communication system

#47
20100247113
2010-09-30

Phase error correction in a coherent receiver

#48
20100183091
2010-07-22

Method for tuning a digital compensation filter within a transmitter, and associated digital compensation filter and associated calibration circuit

#49
20100166115
2010-07-01

Phase error detection with conditional probabilities

#50
20100074374
2010-03-25

Phase calibration circuit and related phase calibration method

#51
20100067619
2010-03-18

Communications device using measured signal-to-noise ratio to adjust phase and frequency tracking

#52
20100061488
2010-03-11

Joint, adaptive control of equalization, synchronization, and gain in a digital communications receiver

#53
20100061487
2010-03-11

Adaptive receiver for high-order modulated signals over fading channels

#54
20090310713
2009-12-17

Receiving apparatus, receiving method, and program

#55
20090245390
2009-10-01

VSB receiver and carrier recovery apparatus thereof

#56
20090190643
2009-07-30

Carrier phase independent symbol timing recovery methods for VSB receivers

#57
20090154619
2009-06-18

Frequency error estimator using second-order loop filter and operating method of the frequency error estimator

#58
20090147839
2009-06-11

QAM phase error detector

#59
20090086738
2009-04-02

Method and system for utilizing a single PLL to clock an array of DDFS for multi-protocol applications

#60
20090080578
2009-03-26

Phase noise limiting apparatus, phase noise limiting method, receiving apparatus, receiving method, and programs

#61
20080317188
2008-12-25

Digital phase locked loop with integer channel mitigation

#62
20080317187
2008-12-25

Interpolative all-digital phase locked loop

#63
20080315960
2008-12-25

Digital phase locked loop with gear shifting

#64
20080315928
2008-12-25

Digital phase locked loop with dithering

#65
20080292022
2008-11-27

Radio receiver including a delay-locked loop (DLL) for phase adjustment

#66
20080267336
2008-10-30

Synchronizing circuit and controlling method thereof

#67
20080136510
2008-06-12

Reception device, control method, and program

#68
20080116968
2008-05-22

Demodulation method using phase detection and apparatus thereof

#69
20070133721
2007-06-14

Method and apparatus for phase-noise compensation in digital receivers

#70
20070110186
2007-05-17

Carrier tracking for AM in-band on-channel radio receivers

#71
20070110183
2007-05-17

Offset compensation device

#72
20070088515
2007-04-19

Timing error detector for vestigial side band (VSB)

#73
20070047511
2007-03-01

Continuously adjustable bandwidth discrete-time phase-locked loop

#74
20060120472
2006-06-08

System and method for multi-carrier modulation

#75
20060045137
2006-03-02

Apparatus for estimating frequency offset from received signal and method for the same

#76
20050243790
2005-11-03

Continuously adjusted-bandwidth discrete-time phase-locked loop

#77
20050220225
2005-10-06

Method and apparatus for frequency correction in wireless local area network systems

#78
20050169418
2005-08-04

Method and circuit for adaptive control of the bandwidth of a carrier recovery loop in radio transmission systems

#79
20050157820
2005-07-21

Digital receiver having adaptive carrier recovery circuit

#80
20050141646
2005-06-30

Carrier recovery apparatus and digital broadcast receiver using the same

#81
20050141645
2005-06-30

VSB receiver and carrier recovery apparatus thereof

#82
20050020219
2005-01-27

Velocity responsive filtering for pilot signal reception

#83
16002648
2019-05-28

Decision feedback equalization with independent data and edge feedback loops

#84
15988110
2019-04-16

Signal receiving apparatus and signal processing method thereof