ClassID:

219057

H03D13/004 - CPC Classification

Classification description:

Circuits for comparing the phase or frequency of two mutually-independent oscillations in which both oscillations are converted by logic means into pulses which are applied to filtering or integrating means the logic means delivering pulses at more than one terminal, e.g. up and down pulses

Recent Application in this class:
#1
20250323649
2025-10-16

Systems and Methods for Phase Locked Loop Realignment With Skew Cancellation

#2
20230387918
2023-11-30

Systems and Methods for Phase Locked Loop Realignment With Skew Cancellation

#3
20230111482
2023-04-13

Systems and methods for phase locked loop realignment with skew cancellation

#4
20220239298
2022-07-28

Systems and methods for phase locked loop realignment with skew cancellation

#5
20200274540
2020-08-27

Phase-frequency detector with frequency doubling logic

#6
20190033793
2019-01-31

Integrated circuit device, physical quantity measuring device, electronic apparatus, and vehicle

#7
20160344380
2016-11-24

Systems and methods of phase frequency detection with clock edge overriding reset, extending detection range, improvement of cycle slipping and/or other features

#8
20160315625
2016-10-27

Phase-rotating phase locked loop and method of controlling operation thereof

#9
20160126963
2016-05-05

Phase detector and phase-locked loop

#10
20140191786
2014-07-10

Phase frequency detector circuit

#11
20140103961
2014-04-17

Phase frequency detector circuit

#12
20130251084
2013-09-26

Low jitter clock recovery circuit

#13
20130135011
2013-05-30

Phase frequency detector circuit

#14
20130057328
2013-03-07

Phase detector circuit for automatically detecting 270 and 540 degree phase shifts

#15
20120200325
2012-08-09

Low jitter clock recovery circuit

#16
20120137161
2012-05-31

Method and apparatus for generating a phase dependent control signal

#17
20110193599
2011-08-11

Phase frequency to digital converter

#18
20110175648
2011-07-21

Phase-frequency comparator and serial transmission device

#19
20110103525
2011-05-05

Pulse signal waveform asymmetry identification utilizing symbolic dynamics

#20
20110102020
2011-05-05

Balanced phase detector

#21
20110096884
2011-04-28

System and method for implementing a phase detector to support a data transmission procedure

#22
20110012656
2011-01-20

Semiconductor integrated circuit

#23
20100176852
2010-07-15

SPREAD SPECTRUM CLOCK GENERATOR USING ARRIVAL LOCKED LOOP TECHNOLOGY

#24
20100134161
2010-06-03

Phase detector circuit for automatically detecting 270 and 540 degree phase shifts

#25
20100061499
2010-03-11

Phase/frequency detector for a phase-locked loop that samples on both rising and falling edges of a reference signal

#26
20100007383
2010-01-14

Method and apparatus for generating a phase dependent control signal

#27
20090302904
2009-12-10

Phase Frequency Detector Circuit for Implementing Low PLL Phase Noise and Low Phase Error

#28
20090154268
2009-06-18

DLL circuit, imaging device, and memory device

#29
20090110136
2009-04-30

Bang-bang phase detector with sub-rate clock

#30
20090102528
2009-04-23

Semiconductor integrated circuit

#31
20080309377
2008-12-18

Balanced phase detector

#32
20080290903
2008-11-27

Radiation hardened phase frequency detector for implementing enhanced radiation immunity performance

#33
20080279323
2008-11-13

Method and apparatus for generating a phase dependent control signal

#34
20080246516
2008-10-09

Phase frequency detectors generating minimum pulse widths

#35
20080240313
2008-10-02

Closed loop adaptive clock RFI mitigation

#36
20080233914
2008-09-25

Method and apparatus for frequency synthesizing

#37
20080231324
2008-09-25

Phase frequency detector and phase-locked loop

#38
20080218217
2008-09-11

Semiconductor integrated circuit device

#39
20080218216
2008-09-11

Metastable-resistant phase comparing circuit

#40
20080191759
2008-08-14

Loop filter and phase-locked loop

#41
20080191746
2008-08-14

Automatic static phase error and jitter compensation in PLL circuits

#42
20080159443
2008-07-03

Phase synchronous device and method for generating phase synchronous signal

#43
20080150588
2008-06-26

System and method of detecting a phase, a frequency and an arrival-time difference between signals

#44
20080136540
2008-06-12

Method and system for use of TSPC logic for high-speed multi-modulus divider in PLL

#45
20080136468
2008-06-12

METHOD AND SYSTEM FOR DOUBLING PHASE-FREQUENCY DETECTOR COMPARISON FREQUENCY FOR A FRACTIONAL-N PLL

#46
20080112526
2008-05-15

Phase difference detector having concurrent fine and coarse capabilities

#47
20080112524
2008-05-15

Phase locked loops capable of burn-in testing with increased locking range and burn-in testing method thereof

#48
20080101524
2008-05-01

Clock data recovery apparatus

#49
20080084955
2008-04-10

Fast-locked clock and data recovery circuit and the method thereof

#50
20080072200
2008-03-20

Method and Radiation Hardened Phase Frequency Detector for Implementing Enhanced Radiation Immunity Performance

#51
20080068044
2008-03-20

Radiation hardened phase frequency detector for implementing enhanced radiation immunity performance

#52
20080063128
2008-03-13

System and method for implementing a phase detector to support a data transmission procedure

#53
20080030243
2008-02-07

Frequency generator apparatus and control circuit thereof

#54
20080013664
2008-01-17

PHASE ERROR MEASUREMENT CIRCUIT AND METHOD THEREOF

#55
20070285132
2007-12-13

Fast locking phase locked loop for synchronization with an input signal

#56
20070268050
2007-11-22

Phase-frequency detector capable of reducing dead zone

#57
20070247248
2007-10-25

Oscillator controller incorporating a voltage-controlled oscillator that outputs an oscillation signal at a desired oscillation frequency

#58
20070223637
2007-09-27

Phase detector

#59
20070133729
2007-06-14

Spread ratio fixing circuit and method for generating spread spectrum clock

#60
20070120611
2007-05-31

Phase frequency detector capable of improving noise characteristics

#61
20070116169
2007-05-24

Phase-locked loop

#62
20070090887
2007-04-26

Lock detect circuit for a phase locked loop

#63
20070085570
2007-04-19

Digital phase detector improving phase detection resolution thereof

#64
20070069823
2007-03-29

Semiconductor integrated circuit having a switch circuit that outputs reference clock until PLL locks

#65
20070058768
2007-03-15

Low jitter clock recovery circuit

#66
20070047687
2007-03-01

PHASE DETECTOR AND RELATED PHASE DETECTING METHOD THEREOF

#67
20070035343
2007-02-15

Phase-locked/frequency-locked loop and phase/frequency comparator therefor

#68
20070035333
2007-02-15

Phase detector for RZ

#69
20070018705
2007-01-25

Phase frequency detector with a novel D flip flop

#70
20070001713
2007-01-04

Phase detecting circuit having adjustable gain curve and method thereof

#71
20060273828
2006-12-07

Phase detector and method having hysteresis characteristics

#72
20060267636
2006-11-30

Methods for synchronizing high-speed signals in a digital phase detector

#73
20060256909
2006-11-16

Single-VCO CDR for TMDS data at gigabit rate

#74
20060256908
2006-11-16

Frequency comparator utilizing enveloping-event detection via symbolic dynamics of fixed or modulated waveforms

#75
20060244499
2006-11-02

Jitter generation circuit and semiconductor device

#76
20060226896
2006-10-12

Switched capacitor filter and feedback system

#77
20060214698
2006-09-28

Phase-locked loop and method thereof and a phase-frequency detector and method thereof

#78
20060208803
2006-09-21

Phase frequency detector with programmable delay

#79
20060203948
2006-09-14

Phase detector and method providing rapid locking of delay-lock loops

#80
20060197623
2006-09-07

Method and apparatus for biasing a metal-oxide-semiconductor capacitor for capacitive tuning

#81
20060193418
2006-08-31

Method and apparatus for clock recovery

#82
20060192613
2006-08-31

Gm-C time constant tuning circuit

#83
20060192594
2006-08-31

Linear phase detector with multiplexed latches

#84
20060158265
2006-07-20

Semiconductor integrated circuit with a cache circuit configured to determine an optimal portion to stop the operation between a sense amplifier and an output circuit based on the system clock

#85
20060145732
2006-07-06

Fast locking method and apparatus for frequency synthesis

#86
20060140323
2006-06-29

Reducing phase offsets in a phase detector

#87
20060140320
2006-06-29

Mechanism to adjust a clock signal based on embedded clock information

#88
20060119396
2006-06-08

Skew tolerant high-speed digital phase detector

#89
20060104399
2006-05-18

Clock and data recovery apparatus

#90
20060087346
2006-04-27

Phase difference detecting apparatus

#91
20060078078
2006-04-13

Phase detector for comparing phases of data and a plurality of clocks

#92
20060076991
2006-04-13

Low power high frequency phase detector

#93
20060055434
2006-03-16

Phase frequency detector

#94
20060055431
2006-03-16

Phase comparator

#95
20060012439
2006-01-19

Linear phase detector and charge pump

#96
20050286505
2005-12-29

Method and apparatus for generating a phase dependent control signal

#97
20050285641
2005-12-29

Spread spectrum clock generation circuit, jitter generation circuit and semiconductor device

#98
20050270072
2005-12-08

DIGITAL PHASE FREQUENCY DISCRIMINATOR

#99
20050242843
2005-11-03

Differential current mode phase/frequency detector circuit

#100
20050218937
2005-10-06

Phase detector and method having hysteresis characteristics

#101
20050185747
2005-08-25

Phase detector with extended linear operating range

#102
20050184811
2005-08-25

Semiconductor integrated circuit

#103
20050146359
2005-07-07

Phase detector

#104
20050123087
2005-06-09

Erroneous phase lock detection circuit

#105
20050117404
2005-06-02

Linear half-rate phase detector and clock and data recovery circuit

#106
20050111607
2005-05-26

Phase detector system with asynchronous output override

#107
20050105660
2005-05-19

Programmable frequency detector for use with a phase-locked loop

#108
20050058235
2005-03-17

CLOCK AND DATA RECOVERY SYSTEM FOR A WIDE RANGE OF BIT RATES

#109
20050024155
2005-02-03

Jitter-less phase detector in a clock recovery circuit

#110
20050024094
2005-02-03

Rotational frequency detector system

#111
20050017773
2005-01-27

Phase locked loop circuit

#112
14217221
2016-08-09

Systems and methods of phase frequency detection with clock edge overriding reset, extending detection range, improvement of cycle slipping and/or other features