ClassID:

221222

H03J7/04 - CPC Classification

Classification description:

Automatic frequency control; Automatic scanning over a band of frequencies; Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant

Sub-classes:
Recent Application in this class:
#1
20260056328
2026-02-26

ENHANCING RECEIVER OPERATION BY MODELING OSCILLATOR DRIFT

#2
20230063149
2023-03-02

Low-area, wide range clocking scheme using inductance/capacitance oscillators

#3
20220113374
2022-04-14

Apparatus and method for applying frequency calibration to local oscillator signal derived from reference clock output of active oscillator

#4
20210083726
2021-03-18

Master reference for base station network interface sourced from distributed antenna system

#5
20200245590
2020-08-06

Pet monitoring device

#6
20200204163
2020-06-25

Near field RFID probe with tunning

#7
20200186130
2020-06-11

Methods and apparatus to measure resonant sensors based on detection of group delay

#8
20190227144
2019-07-25

Apparatus and method for applying frequency calibration to local oscillator signal derived from reference clock output of active oscillator that has no electromechanical resonator

#9
20190057293
2019-02-21

RFID reader with automatic tuning

#10
20180323831
2018-11-08

Master reference for base station network interface sourced from distributed antenna system

#11
20180019771
2018-01-18

Method and radio network node for compensation for local oscillator pulling or pushing

#12
20170187355
2017-06-29

Reactance shift detection in a wireless power transmitter

#13
20170117879
2017-04-27

Resonant circuit calibration

#14
20160244874
2016-08-25

Auto capacitance tuner current compensation to control one or more film properties through target life

#15
20160164495
2016-06-09

Auto-tunable antenna devices

#16
20160142064
2016-05-19

Automatic frequency control

#17
20160126619
2016-05-05

Wireless communication unit, integrated circuit and method for antenna tuning

#18
20160056951
2016-02-25

Communication apparatus and reception method

#19
20160043751
2016-02-11

Radio communication using tunable antennas and an antenna tuning apparatus

#20
20160036474
2016-02-04

Radio communication using multiple antennas and localization variables

#21
20160021662
2016-01-21

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

#22
20150035376
2015-02-05

Wireless power control system

#23
20150015087
2015-01-15

Wireless power transmitting apparatus and wireless power supply system

#24
20140315568
2014-10-23

Device, method, mobile communication terminal, computer program and storage medium for frequency control

#25
20140243033
2014-08-28

Master reference for base station network interface sourced from distributed antenna system

#26
20140235189
2014-08-21

Clock multiplexing for baseband automatic frequency correction

#27
20140132359
2014-05-15

Current reuse voltage controlled oscillator with improved differential output

#28
20140098913
2014-04-10

System and method for I-Q imbalance correction

#29
20140051366
2014-02-20

Method for automatic frequency correction in a multi-carrier communications device

#30
20140002206
2014-01-02

Circuit reducing phase noise of oscillator

#31
20130331025
2013-12-12

Frequency drift estimation for low cost outdoor unit frequency conversions and system diagnostics

#32
20130260742
2013-10-03

Systems and methods for automatic frequency control for mobile communication systems

#33
20130238944
2013-09-12

Systems and methods for reduced latency loop correction

#34
20130130637
2013-05-23

Method of receiving and receivers

#35
20130083874
2013-04-04

Automatic frequency compensation method and apparatus

#36
20130052966
2013-02-28

System and transceiver clocking to minimize required number of reference sources in multi-function cellular applications including GPS

#37
20120321004
2012-12-20

System and method for frequency offsetting of information communicated in MIMO-based wireless networks

#38
20120321003
2012-12-20

System and method for frequency offsetting of information communicated in MIMO-based wireless networks

#39
20120314789
2012-12-13

System and method for frequency offsetting of information communicated in MIMO-based wireless networks

#40
20120309334
2012-12-06

Method and system for automatic frequency control optimization

#41
20120300869
2012-11-29

AUTOMATIC FREQUENCY CONTROL CIRCUIT

#42
20120282871
2012-11-08

RADIO WAVE RECEIVER

#43
20120281745
2012-11-08

Frequency drift estimation for low cost outdoor unit frequency conversions and system diagnostics

#44
20120264386
2012-10-18

Method and apparatus relating to signal control

#45
20120262245
2012-10-18

Signal processing device and method for providing oscillating signal in the signal processing device

#46
20120207252
2012-08-16

Frequency correction of a programmable frequency oscillator by propagation delay compensation

#47
20120184236
2012-07-19

Systems and methods for managing power consumption

#48
20120184224
2012-07-19

Method and apparatus for non-calibrated automatic frequency correction of a portable terminal

#49
20120163516
2012-06-28

Apparatus and method for automatic frequency prediction control

#50
20120015610
2012-01-19

Frequency synthesizer

#51
20110311004
2011-12-22

Frequency correction circuit, frequency correction method and wireless communication equipment using them

#52
20110230153
2011-09-22

Providing channel filtering in an automatic frequency control path

#53
20110165853
2011-07-07

Antenna system comprising an electrically small antenna for reception of UHF band channel signals

#54
20110103337
2011-05-05

GPS-BASED MULTI-MODE SYNCHRONIZATION AND CLOCKING FEMTO-CELLS, PICO-CELLS AND MACRO BASE STATIONS

#55
20110080381
2011-04-07

Portable control apparatus and method thereof for calibrating an oscillating circuit

#56
20110080195
2011-04-07

Automatic frequency control circuit

#57
20110053645
2011-03-03

Method and apparatus for adjusting reference oscillator frequency in a mobile wireless device

#58
20100330931
2010-12-30

System and transceiver clocking to minimize required number of reference sources in multi-function cellular applications including GPS

#59
20100311371
2010-12-09

RADIO WAVE RECEIVER

#60
20100311370
2010-12-09

Radio wave receiver

#61
20100304698
2010-12-02

Radio wave receiver

#62
20100279643
2010-11-04

COMMUNICATION DEVICE, COMMUNICATION SYSTEM, CONTROL METHOD, AND CONTROL PROGRAM

#63
20100261434
2010-10-14

Phase noise correction circuit, transmitter, receiver, radio device, radio communication system, and phase noise correction method

#64
20100255793
2010-10-07

Method for performing a frequency correction of a wireless device

#65
20100248678
2010-09-30

Systems and methods for managing power consumption

#66
20100248670
2010-09-30

Direct conversion RF transceiver for wireless communication

#67
20100232552
2010-09-16

Synchronization and acquisition for mobile television reception

#68
20100222019
2010-09-02

Method and system for automatic frequency control optimization

#69
20100172446
2010-07-08

Frequency drift estimation for low cost outdoor unit frequency conversions and system diagnostics

#70
20100135367
2010-06-03

Adaptive correlation for detection of a high-frequency signal

#71
20100099371
2010-04-22

AUTOMATIC RADIO TUNING SYSTEM

#72
20100069085
2010-03-18

Method and system for sharing a clock reference signal within an integrated mobile device

#73
20090278617
2009-11-12

Crystal-less communications device and self-calibrated clock generation method

#74
20090225905
2009-09-10

FSK receiver

#75
20090180466
2009-07-16

System and method for frequency offsetting of information communicated in MIMO-based wireless networks

#76
20090176459
2009-07-09

Method and apparatus for automatic frequency correction with a frequency error signal generated by block correlation of baseband samples with a known code sequence

#77
20090141781
2009-06-04

Digital communication using an inexpensive reference crystal

#78
20090129450
2009-05-21

Apparatus and method for corresponding frequency synchronization in on-channel repeater

#79
20090042591
2009-02-12

Apparatus and method for acquiring synchronization to support multi-frequency in mobile communication terminal

#80
20090023407
2009-01-22

Adaptive tuning to improve demodulator performance

#81
20080309829
2008-12-18

FREQUENCY SELECTIVE RADIO SENSOR AND A METHOD THEREOF

#82
20080273645
2008-11-06

Methods and apparatus for crystal oscillator drift estimation and compensation

#83
20080267319
2008-10-30

Direct conversion RF transceiver for wireless communications

#84
20080253486
2008-10-16

Frequency correction

#85
20080198070
2008-08-21

Methods and systems for temperature related frequency drift compensation

#86
20080139194
2008-06-12

Compensation for Frequency Adjustment in Mobile Communication-Positioning Device With Shared Oscillator

#87
20080139148
2008-06-12

Providing channel filtering in an automatic frequency control path

#88
20080125118
2008-05-29

Frequency control

#89
20080125070
2008-05-29

Method and apparatus for automatic frequency correction with a frequency error signal generated by block correlation of baseband samples with a known code sequence

#90
20080064355
2008-03-13

Method and apparatus for efficiently applying frequency correction

#91
20080039026
2008-02-14

Method for performing a frequency correction of a wireless device

#92
20080025522
2008-01-31

Receiver system and method for transmitting information for an otological device

#93
20070218850
2007-09-20

Integrated Tuner for Terrestrial and Cable Television

#94
20070201565
2007-08-30

Direct conversion RF transceiver for wireless communications

#95
20070165703
2007-07-19

Method and apparatus for robust automatic frequency control in CDMA systems with constant pilot signals

#96
20070153880
2007-07-05

Dynamic switching of carrier tracking loops without loss of tracking information

#97
20070146550
2007-06-28

RECEIVING CIRCUIT, RECEIVING APPARATUS, AND RECEIVING METHOD

#98
20070058708
2007-03-15

Method and apparatus for automatically correcting receiver oscillator frequency

#99
20070032213
2007-02-08

Method and apparatus for automatic frequency correction with a frequency error signal generated by block correlation of baseband samples with a known code sequence

#100
20060286954
2006-12-21

Method and apparatus for matching receiver carrier frequency

#101
20060276223
2006-12-07

Method and apparatus for adjusting reference oscillator frequency in a mobile wireless device

#102
20060203950
2006-09-14

Dual-loop automatic frequency control for wireless communication

#103
20060166632
2006-07-27

Apparatus and method for automatically tuning frequency

#104
20060109835
2006-05-25

Radio-corrected timepiece

#105
20060087368
2006-04-27

Highly selective filtering device and corresponding filtering method

#106
20060068736
2006-03-30

Controlling the frequency of an oscillator

#107
20060055595
2006-03-16

Method and system for frequency drift prediction

#108
20060008032
2006-01-12

Synchrodyning apparatus

#109
20060001509
2006-01-05

Systems and methods for automated resonant circuit tuning

#110
20050264370
2005-12-01

Reference oscillator

#111
20050219132
2005-10-06

Tunable antenna circuit, particularly for contactless integrated circuit reader

#112
20050147188
2005-07-07

Frequency control for a mobile communications device

#113
20050141655
2005-06-30

Adaptive frequency control apparatus and method thereof

#114
20050107061
2005-05-19

Method and apparatus for automatic frequency correction of a local oscilator with an error signal derived from an angle value of the conjugate product and sum of block correlator outputs

#115
20050078743
2005-04-14

Radio frequency control for communication systems

#116
20050043825
2005-02-24

Method and apparatus for a control signal generating circuit

#117
20050003787
2005-01-06

Method and device for compensating voltage-controlled crystal oscillator of mobile unit

#118
16230266
2020-04-28

Near field RFID probe with tunning

#119
15972130
2019-07-16

Active suppression controller with tracking and correction for multiple time-varying fundamental frequencies