ClassID:

219992

H03F2203/45374 - 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 AAC comprising one or more discrete resistors

Recent Application in this class:
#1
20220123699
2022-04-21

SQUELCH DETECTION DEVICE

#2
20210250006
2021-08-12

Output pole-compensated operational amplifier

#3
20200395907
2020-12-17

Output pole-compensated operational amplifier

#4
20200304076
2020-09-24

Trans impedance amplifier capacitance isolation stage

#5
20200274504
2020-08-27

Squelch detection device

#6
20200127620
2020-04-23

Power amplifier and electronic device

#7
20200106450
2020-04-02

Multi-phase clock generation circuit

#8
20200083847
2020-03-12

SYSTEM AND METHOD FOR BIASING AN AMPLIFIER

#9
20200076385
2020-03-05

Variable gain amplifier embedded in a reception chain

#10
20200059203
2020-02-20

Embedded test circuitry and method therefor

#11
20190363686
2019-11-28

Differential amplifier, corresponding integrated circuit, system, instrumentation amplifier and method

#12
20190363678
2019-11-28

Amplifier circuitry, voltage regulator circuit, and signal compensation method

#13
20190348958
2019-11-14

Low-voltage differential signaling (LVDS) receiver circuit and a method of operating the LVDS receiver circuit

#14
20190312604
2019-10-10

Broadband receiver for multi-band millimeter-wave wireless communication

#15
20190305737
2019-10-03

Audio amplifier, audio output device including the same, and electronic apparatus

#16
20190214953
2019-07-11

High linearly WiGig baseband amplifier with channel select filter

#17
20190187493
2019-06-20

BREAKDOWN VOLTAGE ENHANCEMENT TECHNIQUES FOR A HIGH SPEED AMPLIFIER

#18
20190097583
2019-03-28

Amplifier configuration for load-line enhancement

#19
20180097489
2018-04-05

High linearly WiGig baseband amplifier with channel select filter

#20
20170141746
2017-05-18

High linearly WiGig baseband amplifier with channel select filter

#21
20160294336
2016-10-06

Balanced differential transimpedance amplifier with single ended input and balancing method

#22
20160087727
2016-03-24

Optical modulator driver circuit and optical transmitter

#23
20160065154
2016-03-03

Travelling wave amplifier (TWA) for driving optical modulator

#24
20160006395
2016-01-07

Buffer amplifier and trans-impedance amplifier including the same

#25
20150381115
2015-12-31

Emphasis circuit

#26
20150010171
2015-01-08

Circuit for use with a loudspeaker for portable equipments

#27
20140340148
2014-11-20

Variable gain amplifier

#28
20130314156
2013-11-28

Variable gain amplifier

#29
20130215954
2013-08-22

Analog signal current integrators with tunable peaking function

#30
20130049845
2013-02-28

Differential integrated input circuit

#31
20130021097
2013-01-24

Inductive-element feedback-loop compensator

#32
20120307122
2012-12-06

Low common mode driver

#33
20120293233
2012-11-22

Broadband analog radio-frequency integrator

#34
20120161844
2012-06-28

Flexible low noise, high linearity, high frequency, low power, fully differential mixer and class AB post-mixer amplifier system for SDR applications

#35
20120139634
2012-06-07

Circuitry including matched transistor pairs

#36
20120126896
2012-05-24

Offset cancellation for continuous-time circuits

#37
20120064836
2012-03-15

Amplifier circuit for a ranging transceiver

#38
20110316507
2011-12-29

Multiple-input comparator and power converter

#39
20090295476
2009-12-03

FULLY DIFFERENTIAL DC OFFSET DEVICE CIRCUIT

#40
20090295454
2009-12-03

LOW VOLTAGE MIXER CIRCUIT

#41
20090284316
2009-11-19

Amplifier device

#42
20090027123
2009-01-29

Controlled transconductance differential stage

#43
20080048780
2008-02-28

Linearization apparatus of triode region type operational transconductance amplifier

#44
20080036537
2008-02-14

Wide-band low-noise CMOS amplifier

#45
20080024172
2008-01-31

Actively Compensated Buffering for High Speed Current Mode Logic Data Path

#46
20080007343
2008-01-10

Tuning A Trans-Impedance Amplifier

#47
20070273438
2007-11-29

Mode selection amplifier circuit usable in a signal acquisition probe

#48
20070183530
2007-08-09

Transmission device and radio communication device

#49
20070115058
2007-05-24

Variable gain amplifier having linear-in-decibel transconductance

#50
20070053463
2007-03-08

Polar modulation transmission apparatus and wireless communication apparatus

#51
20070046374
2007-03-01

Linearity-improved differential amplification circuit

#52
20050195035
2005-09-08

Variable gain amplifier having linear-in-decibel transconductance

#53
16215603
2020-01-28

High-speed low VT drift receiver

#54
16143123
2020-07-07

High-speed low VT drift receiver