ClassID:

218725

H03B21/02 - CPC Classification

Classification description:

Generation of oscillations by combining unmodulated signals of different frequencies by beating unmodulated signals of different frequencies by plural beating, i.e. for frequency synthesis ; Beating in combination with multiplication or division of frequency

Sub-classes:
Recent Application in this class:
#1
20240118136
2024-04-11

Frequency synthesis system and frequency generation method of microwave photons based on photoelectric synergy

#2
20220109591
2022-04-07

OOK modulation device

#3
20210175889
2021-06-10

Systems and methods for digital synthesis of output signals using resonators

#4
20210075368
2021-03-11

Phase coherent numerically controlled oscillator

#5
20200212844
2020-07-02

Phase coherent numerically controlled oscillator

#6
20200106448
2020-04-02

Systems and methods for digital synthesis of output signals using resonators

#7
20190244017
2019-08-08

Gesture recognition method and system using siamese neural network

#8
20190244016
2019-08-08

Gesture recognition method for reducing false alarm rate, gesture recognition system for reducing false alarm rate, and performing device thereof

#9
20190243458
2019-08-08

Custom gesture collection and recognition system having machine learning accelerator

#10
20190242975
2019-08-08

Gesture recognition system and gesture recognition method thereof

#11
20190242974
2019-08-08

Gesture recognition method and gesture recognition system

#12
20180006606
2018-01-04

Radio frequency signal synthesizer circuit and method for generating a radio frequency signal

#13
20170205772
2017-07-20

All-digital phase locked loop (ADPLL) including a digital-to-time converter (DTC) and a sampling time-to-digital converter (TDC)

#14
20160112054
2016-04-21

Device for generating frequency-stable signals with switchable injection-locked oscillator

#15
20160028350
2016-01-28

Modified flying adder architecture

#16
20140323062
2014-10-30

Frequency synthesis device and method

#17
20140197867
2014-07-17

Circuits and methods for using a flying-adder synthesizer as a fractional frequency divider

#18
20140184342
2014-07-03

Systems and methods for frequency synthesis to improve coexistence

#19
20140055461
2014-02-27

Low-memory-usage arbitrary waveform representation or generation

#20
20140015616
2014-01-16

Noise reduction in MEMS oscillators and related apparatus and methods

#21
20130342277
2013-12-26

High-frequency signal generator with low phase noise

#22
20130278302
2013-10-24

Clock signal generator

#23
20130141174
2013-06-06

Oscillator for generating a signal comprising a terahertz-order frequency using the beat of two optical waves

#24
20130130632
2013-05-23

Signal generator circuit and radio transmission and reception device including the same

#25
20130084822
2013-04-04

Apparatus generating subcarrier for transmission between ultra-high frequency channels and method generating of the same

#26
20130033330
2013-02-07

Frequency synthesis and noise reduction

#27
20120161996
2012-06-28

Low-memory-usage arbitrary waveform representation or generation

#28
20110009083
2011-01-13

Synthesizer and reception device

#29
20110006811
2011-01-13

Frequency synthesizer for a level measuring device and a level measuring device

#30
20100283550
2010-11-11

Multi-output oscillator using single oscillator

#31
20100214026
2010-08-26

Millimeter-wave wideband voltage controlled oscillator

#32
20100127788
2010-05-27

Selectable local oscillator

#33
20090286490
2009-11-19

OSCILLATOR CIRCUIT, TRANSCEIVER, AND METHOD FOR GENERATING OSCILLATORY SIGNAL

#34
20090108945
2009-04-30

Frequency synthesizer having improved frequency hopping

#35
20090061811
2009-03-05

Multi-frequency synthesizing apparatus and method for multi-band RF receiver

#36
20090033384
2009-02-05

Method and system for managing digital to time conversion

#37
20090017780
2009-01-15

RESIDUAL CARRIER AND SIDE BAND PROCESSING SYSTEM AND METHOD

#38
20080056337
2008-03-06

Local oscillator with non-harmonic ratio between oscillator and RF frequencies using XOR operation

#39
20080055010
2008-03-06

Local oscillator with non-harmonic ratio between oscillator and RF frequencies using pulse generation and selection

#40
20080024231
2008-01-31

Ultra wideband and fast hopping frequency synthesizer for MB-OFDM wireless application

#41
20070298750
2007-12-27

Frequency synthesizer

#42
20070178869
2007-08-02

Multi-frequency synthesizing apparatus and method for multi-band RF receiver

#43
20070159259
2007-07-12

Frequency synthesizing apparatus and method having injection-locked quadrature VCO in RF transceiver

#44
20070140392
2007-06-21

Multi-input multi-frequency synthesizing apparatus and method for multi-band RF receiver

#45
20070139124
2007-06-21

Frequency generator arrangement

#46
20070105518
2007-05-10

Ultra wideband and fast hopping frequency synthesizer for MB-OFDM wireless application

#47
20060258299
2006-11-16

Dual band frequency synthesizer

#48
20060035599
2006-02-16

Frequency synthesizer and multi-band radio apparatus using said frequency synthesizer

#49
20060035598
2006-02-16

Frequency synthesizer and multi-band radio apparatus using said frequency synthesizer

#50
20060019625
2006-01-26

Multi-frequency signal source

#51
20050156634
2005-07-21

Phase continuous synthesizer with phase coasting and associated methods

#52
20050102337
2005-05-12

Frequency locked digitally tuned oscillator synthesizer

#53
20050101269
2005-05-12

Residual carrier and side band processing system and method

#54
20050083142
2005-04-21

Frequency synthesizer with on-chip inductor

#55
20050083085
2005-04-21

Method and apparatus for fractional RF signal synthesis

#56
20050073367
2005-04-07

Dual-oscillator signal synthesizer having high frequency offset stage

#57
20050007203
2005-01-13

Frequency synthesizing circuit having a frequency multiplier for an output PLL reference signal

#58
16459657
2020-08-25

Stabilizing a precision electro optical oscillator clock using an environmentally insensitive metamaterial device

#59
15470616
2020-01-07

Systems and methods for digital synthesis of output signals using resonators

#60
14316318
2016-12-13

Method and apparatus for synthesizing signals with phase continuous and phase coherent transitions

#61
14088500
2015-08-25

Circuit and method for adaptive clock generation using dynamic-time-average-frequency