ClassID:

220855

H03H11/1213 - CPC Classification

Classification description:

Networks using active elements; Multiple-port networks; Frequency selective two-port networks using amplifiers with feedback using transistor amplifiers

Recent Application in this class:
#1
20250278105
2025-09-04

Regulator Circuit, Circuit Device, And Oscillator

#2
20220329204
2022-10-13

Semiconductor device and oscillation circuit

#3
20210399720
2021-12-23

Clock filter with negative resistor circuit

#4
20210119612
2021-04-22

Clock filter with negative resistor circuit

#5
20190214953
2019-07-11

High linearly WiGig baseband amplifier with channel select filter

#6
20190149180
2019-05-16

Circuit for determining whether an actual transmission was received in a low-voltage differential sensing receiver

#7
20190020331
2019-01-17

Band-pass filter

#8
20180175827
2018-06-21

LOW-PASS FILTER WITH SUPER SOURCE FOLLOWER AND TRANSMISSION ZERO CONTROLLING METHOD

#9
20180123838
2018-05-03

Feed-forward filtering device and associated method

#10
20170257235
2017-09-07

Feed-forward filtering device and associated method

#11
20170141760
2017-05-18

Baseband filters and interfaces between a digital-to-analog converter and a baseband filter

#12
20170063341
2017-03-02

Ultra-low frequency bio-medical active-RC lowpass filters

#13
20170026030
2017-01-26

Multimode reconfigurable amplifier and analog filter including the same

#14
20160269006
2016-09-15

Waveform shaping filter, integrated circuit, radiation detection device, method for adjusting time constant of waveform shaping filter, and method for adjusting gain of waveform shaping filter

#15
20160226467
2016-08-04

Low-pass filter circuit and power supply device

#16
20160211830
2016-07-21

Waveform shaping filter and radiation detection device

#17
20160149559
2016-05-26

Low-pass filter

#18
20150349397
2015-12-03

Resonating filter and method thereof

#19
20150303955
2015-10-22

Complex-pole load offering concurrent image rejection and channel selection

#20
20150303897
2015-10-22

IF-noise-shaping transistorized current-mode lowpass filter utilizing cross coupled transistors

#21
20150162895
2015-06-11

Area efficient baseband filter

#22
20140266415
2014-09-18

Harmonic cancellation circuit for an RF switch branch

#23
20140256280
2014-09-11

Dynamic gain assignment in analog baseband circuits

#24
20140247089
2014-09-04

Two stage source-follower based filter

#25
20140167883
2014-06-19

Fast response high-order low-pass filter

#26
20140080432
2014-03-20

Electronic device with adjustable filter and associated methods

#27
20140035666
2014-02-06

Op-R, A Solid State Filter

#28
20140035665
2014-02-06

Two-stage class AB operational amplifier

#29
20140029143
2014-01-30

Receiver having a wide common mode input range

#30
20130265105
2013-10-10

Transistor-based filter for inhibiting load noise from entering a power supply

#31
20130234688
2013-09-12

Low pass filter circuit and voltage regulator

#32
20130203367
2013-08-08

Electronic device with adjustable filter and associated methods

#33
20130076434
2013-03-28

Differential source follower having 6dB gain with applications to WiGig baseband filters

#34
20130049884
2013-02-28

METHODS AND CIRCUITS FOR ATTENUATING HIGH-FREQUENCY NOISE

#35
20130009699
2013-01-10

Frequency-variable filter

#36
20120293248
2012-11-22

ACTIVE AND CONFIGURABLE FILTER DEVICE

#37
20120098574
2012-04-26

Filter circuit and optical disk device including the same

#38
20110230156
2011-09-22

Dynamic gain assignment in analog baseband circuits

#39
20110115566
2011-05-19

Receiver including an LCD tank filter and method thereof

#40
20110090824
2011-04-21

Low-pass filter design

#41
20110051799
2011-03-03

Equalization apparatus

#42
20110050372
2011-03-03

Integrated channel filter using multiple resonant filters and method of operation

#43
20100308903
2010-12-09

Filtering arrangement, filtering method and current sensing arrangement

#44
20100201437
2010-08-12

Tunable RF filter

#45
20100127796
2010-05-27

ELECTRONIC FILTER AND AN ELECTRONIC CIRCUIT FOR USE IN A SWITCHING APPLICATION

#46
20100073089
2010-03-25

High pass filter chip

#47
20090237153
2009-09-24

High order continuous time filter

#48
20090140799
2009-06-04

INTEGRATED RC FILTER

#49
20090066394
2009-03-12

Peaking control circuit

#50
20090058518
2009-03-05

HIGH-PASS FILTER

#51
20090033424
2009-02-05

Radio receiver

#52
20080231369
2008-09-25

Variable-gain low-noise amplifier

#53
20080157864
2008-07-03

Filter circuit

#54
20080122530
2008-05-29

Transconductor and filter circuit

#55
20080100375
2008-05-01

Integrated channel filter using multiple resonant filters and method of operation

#56
20080074195
2008-03-27

Adaptive tuning circuit to maximize output signal amplitude for an amplifier

#57
20080030279
2008-02-07

Circuit with Q-enhancement cell having feedback loop

#58
20070159240
2007-07-12

Lowpass biquad VGA filter

#59
20070064371
2007-03-22

Circuit device for filtering or impedance matching

#60
20060232329
2006-10-19

Integrated channel filter using multiple resonant filters and method of operation

#61
20060220737
2006-10-05

High Q monolithic inductors for use in differential circuits

#62
20060202747
2006-09-14

Filter circuit array

#63
20060186951
2006-08-24

Low noise lowpass filter

#64
20060176104
2006-08-10

Ultra wideband filter based on a pair of cross-coupled transistors

#65
20060154638
2006-07-13

Wideband monolithic tunable high-Q notch filter for image rejection in RF application

#66
20060036668
2006-02-16

Filtering variable offset amplifier

#67
20050206442
2005-09-22

Temperature independent current source and active filter circuit using the same

#68
20050143039
2005-06-30

Image rejection quadratic filter

#69
16562854
2020-09-15

Source follower-based sallen-key architecture

#70
16419663
2020-08-25

Area-efficient dynamic capacitor circuit for noise reduction in VLSI circuits

#71
14951073
2017-04-04

Filter circuits with emitter follower transistors and servo loops