Patents-Review.com
ClassID:

220886 ⎘

H03H11/32 - CPC Classification

Classification description:

Networks using active elements; Multiple-port networks Balance-unbalance networks

Recent Application in this class:
#1
20260025125
2026-01-22

ACTIVE UNBALANCED-TO-BALANCED CONVERTER CIRCUIT

 #2
20250330152
2025-10-23

DUAL BAND RECONFIGURABLE BALUN CIRCUIT

 #3
20250317126
2025-10-09

DIFFERENTIAL TO SINGLE ENDED BALUN TECHNIQUE

 #4
20240430032
2024-12-26

ULTRA-WIDE BAND RADIO FREQUENCY SYSTEM

 #5
20240120905
2024-04-11

System and apparatus for on-substrate circuit configured to operate as transformer

 #6
20240063521
2024-02-22

Systems and methods for general-purpose, high-performance transversal filter processing

 #7
20230336203
2023-10-19

Transformer-based current-reuse amplifier with embedded IQ generation for compact image rejection architecture in multi-band millimeter-wave 5G communication

 #8
20230208550
2023-06-29

Ultra-wide band radio frequency system

 #9
20220301705
2022-09-22

BIOLOGICAL INFORMATION MONITORING APPARATUS AND MRI APPARATUS

 #10
20220231668
2022-07-21

LO leakage suppression in frequency conversion circuits

 #11
20220189677
2022-06-16

MULTI-LAYER BALANCED-TO-UNBALANCED (BALUN) TRANSMISSION LINE TRANSFORMER WITH HARMONIC REJECTION

 #12
20220181762
2022-06-09

Systems and methods for general-purpose, high-performance transversal filter processing

 #13
20220158682
2022-05-19

Transformer-based current-reuse amplifier with embedded IQ generation for compact image rejection architecture in multi-band millimeter-wave 5G communication

 #14
20220038202
2022-02-03

Ultra-wide band electromagnetic jamming projector

 #15
20210135657
2021-05-06

Active balun circuit, power amplifier circuit, and power amplifier module

 #16
20210099140
2021-04-01

WIDE BANDWIDTH RADIO FREQUENCY (RF) AMPLIFIER

 #17
20210021259
2021-01-21

Pulse modulator

 #18
20210006236
2021-01-07

Active clamp capacitor balancing

 #19
20200412340
2020-12-31

On-chip balun

 #20
20200374028
2020-11-26

Ultra-wide band electromagnetic jamming projector

 #21
20200162035
2020-05-21

Control circuit for a radio frequency power amplifier

 #22
20200036349
2020-01-30

Amplification circuit, apparatus for amplifying, low noise amplifier, radio receiver, mobile terminal, base station, and method for amplifying

 #23
20190356322
2019-11-21

Injection locked frequency divider

 #24
20190295969
2019-09-26

Balance-unbalance converter and semiconductor integrated circuit having the same

 #25
20190245520
2019-08-08

Balun arrangement

 #26
20190222205
2019-07-18

Vector sum circuit and phase controller using the same

 #27
20190190482
2019-06-20

Radio-frequency apparatus with multi-band balun and associated methods

 #28
20190181841
2019-06-13

On-chip balun circuit and multi-port antenna switch circuit

 #29
20190158078
2019-05-23

Apparatus and method for multiplying frequency

 #30
20190158069
2019-05-23

Transmission line with device for limiting losses through impedance mismatch

 #31
20180302063
2018-10-18

Transmission line with device for limiting losses through impedance mismatch

 #32
20180278240
2018-09-27

On-chip balun circuit and multi-port antenna switch circuit

 #33
20180167048
2018-06-14

Impedance matching circuit of communication apparatus

 #34
20180159516
2018-06-07

High-efficiency frequency doubler with a compensated transformer-based input balun

 #35
20180097479
2018-04-05

Mixer

 #36
20180062607
2018-03-01

Switchable transformer-based balun

 #37
20180054222
2018-02-22

Digital variable capacitance circuit, resonant circuit, amplification circuit, and transmitter

 #38
20180048294
2018-02-15

Systems and methods providing an intermodulation distortion sink

 #39
20170359040
2017-12-14

Amplification circuit, apparatus for amplifying, low noise amplifier, radio receiver, mobile terminal, base station, and method for amplifying

 #40
20170302228
2017-10-19

DIGITAL-TO-RF POWER CONVERTER

 #41
20170279430
2017-09-28

Circuit

 #42
20170264242
2017-09-14

Apparatus for and method of programmable matching network for multiple signal types

 #43
20170244400
2017-08-24

PULSE MODULATOR

 #44
20170163245
2017-06-08

Voltage or impedance-injection method using transformers with multiple secondary windings for dynamic power flow control

 #45
20170160762
2017-06-08

Distributed impedance injection module for mitigation of the Ferranti effect

 #46
20170141730
2017-05-18

Double-balanced field-effect transistor mixer with direct single-ended intermediate frequency outputs

 #47
20170077904
2017-03-16

Apparatus for and method of programmable matching network for multiple signal types

 #48
20170063405
2017-03-02

Digital variable capacitance circuit, resonant circuit, amplification circuit, and transmitter

 #49
20170063345
2017-03-02

Harmonic mixer having two transistors driven complimentarily

 #50
20170012652
2017-01-12

Tunable balun

 #51
20160336921
2016-11-17

Active balun for wideband applications

 #52
20160315599
2016-10-27

Active balun circuit and transformer

 #53
20160308511
2016-10-20

Frequency tunable balun

 #54
20150341014
2015-11-26

Broadband integrated RF/microwave/millimeter mixer with integrated balun(s)

 #55
20150318794
2015-11-05

Auxiliary resonant commutated pole converter with voltage balancing circuit

 #56
20150229292
2015-08-13

Second order loop filter and multi-order delta sigma modulator including the same

 #57
20150214919
2015-07-30

Circuit

 #58
20150207499
2015-07-23

Frequency shift-keying reader circuit

 #59
20150092892
2015-04-02

Single phase differential conversion circuit, balun, switch, and communication device

 #60
20150042402
2015-02-12

Distortion measurement and correction system and method

 #61
20150035609
2015-02-05

Method and apparatus for converting single-ended signals into differential signals

 #62
20130328622
2013-12-12

Filtering device with low-pass filtering function and band-pass filtering function

 #63
20130278337
2013-10-24

Differential signal correction circuit

 #64
20120319767
2012-12-20

Single-ended-to-differential filter using common mode feedback

 #65
20120243586
2012-09-27

Phase shifting stage for switchless de-multiplexing

 #66
20120235765
2012-09-20

Balanced output signal generator

 #67
20120161891
2012-06-28

OTA-based current-mode filter and oscillator

 #68
20110316628
2011-12-29

Complimentary single-ended-input OTA-C universal filter structures

 #69
20110175667
2011-07-21

Low distortion active balun circuit and method thereof

 #70
20110158135
2011-06-30

RF front-end with on-chip transmitter/receiver isolation using the hall effect

 #71
20110158134
2011-06-30

RF front-end with on-chip transmitter/receiver isolation using a gyrator

 #72
20110037522
2011-02-17

Active balun with stacked structure

 #73
20100201457
2010-08-12

Hybrid balun apparatus

 #74
20100097154
2010-04-22

Broadband active balun

 #75
20100052808
2010-03-04

Active balun circuit

 #76
20100015941
2010-01-21

BROADBAND ACTIVE BALUN AND BALANCED MIXER USING REACTIVE FEEDBACK

 #77
20090302944
2009-12-10

Noise-shaped blocker-reject amplifier

 #78
20090279642
2009-11-12

Calibrated quadrature generation for multi-GHz receiver

 #79
20090212872
2009-08-27

Wideband active balun using darlington pair

 #80
20090160559
2009-06-25

INTEGRATED CIRCUIT INCLUDING IMPEDANCE TO PROVIDE SYMMETRICAL DIFFERENTIAL SIGNALS

 #81
20090134951
2009-05-28

Broadband reciprocal active balun structure

 #82
20090115515
2009-05-07

Receiver comprising an amplifier

 #83
20090061803
2009-03-05

Differential to single-ended conversion for radio frequency devices

 #84
20090051440
2009-02-26

Active balun circuit

 #85
20080272849
2008-11-06

Active baluns

 #86
20080224795
2008-09-18

ACTIVE BALUN

 #87
20080136528
2008-06-12

Merged low-noise amplifier and balun

 #88
20080122538
2008-05-29

Wideband active balun circuit based on differential amplifier

 #89
20080122530
2008-05-29

Transconductor and filter circuit

 #90
20070210876
2007-09-13

Fbar Filter

 #91
20070109041
2007-05-17

FM detector circuit with unbalanced/balanced conversion

 #92
20060044080
2006-03-02

Unbalanced-balanced multiband filter module

 #93
20060033560
2006-02-16

Variable time constant circuit and filter circuit using the same

 #94
20060006942
2006-01-12

Balanced amplifier and filter using the same

 #95
20050285673
2005-12-29

Operational amplifier circuit, sample/hold circuit and filter circuit using the operational amplifier circuit

 #96
20050285672
2005-12-29

Operational amplifier circuit, sample/hold circuit and filter circuit using the operational amplifier circuit

 #97
20050212383
2005-09-29

Balanced high-frequency device and balanced high-frequency circuit using the same

 #98
20050146381
2005-07-07

Balanced amplifier and filter using the same

 #99
20050140446
2005-06-30

Single-ended-to-differential converter with common-mode voltage control

 #100
20050043004
2005-02-24

Communication apparatus, electronic equipment with communication functions, communication function circuit, amplifier circuit and balun circuit

 #101
16599028
2020-10-27

Inductive radio frequency power sampler

 #102
16454891
2020-10-27

Switchable active balanced-to-unbalanced phase shifter

 #103
16126881
2019-06-18

Injection locked frequency divider

 #104
15341829
2018-06-05

8GHz-20GHz noise cancelling transversal reconfigurable notch filter

 #105
14573144
2016-04-19

Injecting a tone for image rejection calibration