ClassID:

220148

H03F2203/45686 - CPC Classification

Classification description:

Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by; Indexing scheme relating to differential amplifiers the LC comprising one or more potentiometers, which are not shunting potentiometers

Recent Application in this class:
#1
20250183859
2025-06-05

TRANS-IMPEDANCE AMPLIFIER FOR ULTRASOUND DEVICE AND RELATED APPARATUS AND METHODS

#2
20240120891
2024-04-11

Trans-impedance amplifier for ultrasound device and related apparatus and methods

#3
20210384872
2021-12-09

Trans-impedance amplifier for ultrasound device and related apparatus and methods

#4
20200350868
2020-11-05

Amplifier circuit with overshoot suppression

#5
20190214953
2019-07-11

High linearly WiGig baseband amplifier with channel select filter

#6
20190149100
2019-05-16

Amplifier circuit with overshoot suppression

#7
20190140603
2019-05-09

Trans-impedance amplifier for ultrasound device and related apparatus and methods

#8
20190103839
2019-04-04

Radio frequency (RF) receiver circuit

#9
20190058457
2019-02-21

Variable impedance communication terminal

#10
20180097489
2018-04-05

High linearly WiGig baseband amplifier with channel select filter

#11
20180048266
2018-02-15

Amplifier circuit with overshoot suppression

#12
20170163225
2017-06-08

Trans-impedance amplifier for ultrasound device and related apparatus and methods

#13
20170141746
2017-05-18

High linearly WiGig baseband amplifier with channel select filter

#14
20170085239
2017-03-23

Amplifier with boosted peaking

#15
20160099689
2016-04-07

Transmission line driver circuit for adaptively calibrating impedance matching

#16
20150381129
2015-12-31

Variable gain transimpedance amplifier

#17
20150295544
2015-10-15

Amplifier circuit with overshoot suppression

#18
20150249435
2015-09-03

Analog amplifier for recovering abnormal operation of common mode feedback

#19
20150162940
2015-06-11

TIA-to-ADC interface with low-noise and a wide-range of passive gain control

#20
20150014518
2015-01-15

High-speed transimpedance amplifier

#21
20140180052
2014-06-26

Neural recording system

#22
20140171005
2014-06-19

Low-noise TIA-to-ADC interface with a wide-range of passive gain control

#23
20130335145
2013-12-19

High-speed transimpedance amplifier

#24
20130181775
2013-07-18

Rail-to rail input circuit

#25
20130115876
2013-05-09

Near field communications reader

#26
20130076440
2013-03-28

Operational amplifier circuit structure

#27
20120309456
2012-12-06

Semiconductor integrated circuit device, electronic device, and radio communication device

#28
20120293233
2012-11-22

Broadband analog radio-frequency integrator

#29
20120169422
2012-07-05

Amplifier with non-linear current mirror

#30
20120139638
2012-06-07

Methods and Circuits for Controlling Amplifier Gain Over Process, Voltage, and Temperature

#31
20110316634
2011-12-29

High speed low power multiple standard and supply output driver

#32
20110291757
2011-12-01

Distributed threshold adjustment for high speed receivers

#33
20110095822
2011-04-28

Variable-gain low noise amplifier

#34
20100271120
2010-10-28

Distributed threshold adjustment for high speed receivers

#35
20100244961
2010-09-30

Differential amplifier

#36
20100127736
2010-05-27

Low voltage differential signaling driver with programmable on-chip resistor termination

#37
20100007418
2010-01-14

Input system for a variable gain amplifier having class-AB transconductance stages

#38
20090302948
2009-12-10

Post amplifier with selectable gain

#39
20090302888
2009-12-10

Increased sensitivity and reduced offset variation in high data rate HSSI receiver

#40
20090284311
2009-11-19

Resistor circuit

#41
20090267693
2009-10-29

Resistor self-trim circuit for increased performance

#42
20090167574
2009-07-02

Amplifier gain control circuit for the wireless transceiver

#43
20090066394
2009-03-12

Peaking control circuit

#44
20090045875
2009-02-19

Data amplifying circuit controllable with swing level according to operation mode and output driver including the same

#45
20080136458
2008-06-12

Method and system for wide range amplitude detection

#46
20080061847
2008-03-13

Driver circuit and method of controlling the same

#47
20080061745
2008-03-13

Differential amplifier circuit and electric charge control apparatus using differential amplifier circuit

#48
20070290757
2007-12-20

Input system for a variable gain amplifier having class-AB transconductance stages

#49
20070279130
2007-12-06

High speed amplifier with controllable amplification and output impedance and comparator using the same

#50
20070247208
2007-10-25

Offset correcting method, offset correcting circuit, and electronic volume

#51
20070236288
2007-10-11

Apparatus for amplifying differential signal

#52
20070188229
2007-08-16

Variable gain amplifier with constant input referred third order intercept

#53
20070159247
2007-07-12

CMOS amplifier of filter for ultra wideband application and method of the same

#54
20070030066
2007-02-08

Data amplifying circuit controllable with swing level according to operation mode and output driver including the same

#55
20060238254
2006-10-26

Input system for a variable gain amplifier having class-AB transconductance stages

#56
20060197597
2006-09-07

Ultra low-frequency response, DC-blocked low-noise amplifier

#57
20060061415
2006-03-23

Low voltage broadband gain cell

#58
20060028275
2006-02-09

Differential amplifier having independently tunable base gain, peak gain and boost frequency, and uses of same

#59
20050285674
2005-12-29

Adapting operational amplifier frequency response respective to closed loop gain

#60
20050237095
2005-10-27

Frequency output circuit

#61
20050225391
2005-10-13

Output stage circut for an operational amplifier

#62
20050195904
2005-09-08

Transmission line driver

#63
20050057307
2005-03-17

Output stage circuit for an operational amplifier

#64
20050057304
2005-03-17

Single-ended input, differential output low noise amplifier

#65
20050030081
2005-02-10

Offset correcting method, offset correcting circuit, and electronic volume