ClassID:

222233

H03L7/235 - CPC Classification

Classification description:

Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop; Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using more than one loop with pulse counters or frequency dividers Nested phase locked loops

Recent Application in this class:
#1
20250350239
2025-11-13

CLOCK GENERATION APPARATUS, CLOCK GENERATION METHOD, ADJUSTMENT APPARATUS, ADJUSTMENT METHOD, AND NON-TRANSITORY COMPUTER READABLE MEDIUM

#2
20240195420
2024-06-13

Delta-sigma modulator with modified quantization error shaping

#3
20240146243
2024-05-02

CLOCK GENERATION APPARATUS, CLOCK GENERATION METHOD, ADJUSTMENT APPARATUS, ADJUSTMENT METHOD, AND NON-TRANSITORY COMPUTER READABLE MEDIUM

#4
20230223944
2023-07-13

PHASE NOISE PERFORMANCE USING MULTIPLE RESONATORS WITH VARYING QUALITY FACTORS AND FREQUENCIES

#5
20220376694
2022-11-24

Method and apparatus for performing on-system phase-locked loop management in memory device

#6
20220173740
2022-06-02

Generator and method for generating a controlled frequency

#7
20220029630
2022-01-27

Method and apparatus for performing on-system phase-locked loop management in memory device

#8
20210391866
2021-12-16

Frequency synthesizer

#9
20210218404
2021-07-15

Apparatus and method to mitigate phase frequency modulation due to inductive coupling

#10
20200162084
2020-05-21

FBAR-BASED LOCAL OSCILLATOR GENERATION

#11
20190253059
2019-08-15

Wide range frequency synthesizer with quadrature generation and spur cancellation

#12
20190190617
2019-06-20

Clock recovery circuits, systems and implementation for increased optical channel density

#13
20190097640
2019-03-28

Phase-locked loop output adjustment

#14
20190028107
2019-01-24

Apparatus and method to mitigate phase frequency modulation due to inductive coupling

#15
20190007189
2019-01-03

Clock and data recovery having shared clock generator

#16
20180375523
2018-12-27

Digital phase locked loop and operating method of digital phase locked loop

#17
20180294817
2018-10-11

Apparatus and methods for phase synchronization of phase-locked loops

#18
20180138913
2018-05-17

Fractional-N PLL with sleep modes

#19
20170373826
2017-12-28

Clock synchronizer and method of establishing an output clock

#20
20170331483
2017-11-16

Wide range frequency synthesizer with quadrature generation and spur cancellation

#21
20170324419
2017-11-09

Apparatus and methods for phase synchronization of phase-locked loops

#22
20170264425
2017-09-14

High order hybrid phase locked loop with digital scheme for jitter suppression

#23
20170063382
2017-03-02

Apparatus and method to mitigate phase and frequency modulation due to inductive coupling

#24
20160344398
2016-11-24

METHODS AND SYSTEMS FOR CASCADED PHASE-LOCKED LOOPS (PLLS)

#25
20160323095
2016-11-03

Method of establishing an oscillator clock signal

#26
20160294398
2016-10-06

Clock synchronizer

#27
20160269035
2016-09-15

Dual-loop programmable and dividerless clock generator for ultra low power applications

#28
20160241251
2016-08-18

Display apparatus and driving method for the same

#29
20160126964
2016-05-05

Reference frequency calibration module and apparatus using the same

#30
20160043728
2016-02-11

RF circuit

#31
20150365095
2015-12-17

Wide range frequency synthesizer with quadrature generation and spur cancellation

#32
20150180594
2015-06-25

Self-calibrating shared-component dual synthesizer

#33
20150078495
2015-03-19

Clock and data recovery having shared clock generator

#34
20140361812
2014-12-11

Direct digital synthesizer, reference frequency generating device, and sine wave outputting method

#35
20140292388
2014-10-02

Phase locked loop circuit

#36
20140225653
2014-08-14

Cascaded PLL for reducing low-frequency drift in holdover mode

#37
20140184289
2014-07-03

Method and apparatus for single port modulation using a fractional-N modulator

#38
20140132339
2014-05-15

Filtering circuit, phase identity determination circuit and delay locked loop

#39
20140105345
2014-04-17

Method of establishing an oscillator clock signal

#40
20140103977
2014-04-17

Use of Frequency addition in a PLL control loop

#41
20140055181
2014-02-27

Clock generating circuit

#42
20130271186
2013-10-17

Wide range frequency synthesizer with quadrature generation and spur cancellation

#43
20130162311
2013-06-27

Filtering circuit, phase identity determination circuit and delay locked loop

#44
20130156076
2013-06-20

Circuits and methods for a combined phase detector

#45
20130093478
2013-04-18

Differentiator based spread spectrum modulator

#46
20130070882
2013-03-21

Phase averaging-based clock and data recovery

#47
20130063183
2013-03-14

SIGNAL GENERATING APPARATUS AND METHOD OF GENERATING SIGNAL

#48
20120268215
2012-10-25

Circuit arrangement for generation of radio frequency output signals which form a broadband frequency ramp

#49
20120068742
2012-03-22

Method and apparatus for efficient time slicing

#50
20120051480
2012-03-01

Phase locked loop, CDR circuit, and receiving circuit

#51
20120044001
2012-02-23

Signal processing apparatus

#52
20110175652
2011-07-21

Fractional-N phase-locked loop

#53
20110156820
2011-06-30

Method of establishing an oscillator clock signal

#54
20110115467
2011-05-19

Film-thickness measuring device using PLL circuit

#55
20110087347
2011-04-14

Digital controller for automatic rate detection and tracking of audio interface clocks

#56
20110075781
2011-03-31

Continuous-rate clock recovery circuit

#57
20110032013
2011-02-10

Digital phase-locked loop clock system

#58
20090190708
2009-07-30

Frequency synthesis using upconversion PLL processes

#59
20090167443
2009-07-02

Digitally compensated highly stable holdover clock generation techniques using adaptive filtering

#60
20090141774
2009-06-04

SPREAD SPECTRUM CLOCK GENERATOR CAPABLE OF FREQUENCY MODULATION WITH HIGH ACCURACY

#61
20090121792
2009-05-14

Method of establishing an oscillator clock signal

#62
20090039968
2009-02-12

Dual loop architecture useful for a programmable clock source and clock multiplier applications

#63
20080317186
2008-12-25

Controlling phase locked loop

#64
20080298532
2008-12-04

Audio clock regenerator with precisely tracking mechanism

#65
20080151117
2008-06-26

HORIZONTAL SYNCHRONOUS CIRCUIT, DISPLAY DEVICE, AND CLOCK ADJUSTING METHOD

#66
20070146083
2007-06-28

CALIBRATION OF OSCILLATOR DEVICES

#67
20070063776
2007-03-22

Semiconductor integrated circuit with clock generator

#68
20060269032
2006-11-30

Circuit, control system, IC, transmitting and receiving apparatus, control method and program

#69
20060267640
2006-11-30

Method of establishing an oscillator clock signal

#70
20060119437
2006-06-08

Voltage controlled clock synthesizer

#71
20050111595
2005-05-26

Portable radio terminal and AFC control method

#72
20050105655
2005-05-19

Portable radio terminal and AFC control method

#73
20050081076
2005-04-14

Semiconductor integrated circuit with clock generator

#74
20050068118
2005-03-31

Reconfigurable terminal

#75
20050008112
2005-01-13

Phase synchronization circuit

#76
16502907
2020-09-01

Apparatuses and methods involving phase-error tracking circuits

#77
11291856
2015-12-29

Low noise frequency source