ClassID:

219439

H03F3/456 - CPC Classification

Classification description:

Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements; Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection in differential amplifiers with bipolar transistors as the active amplifying circuit by offset reduction by using a feedback circuit

Recent Application in this class:
#1
20260106588
2026-04-16

SIGNAL PROCESSING CIRCUIT

#2
20240313636
2024-09-19

BUILT-IN RIPPLE INJECTION CIRCUIT AND CONTROL CHIP

#3
20240250647
2024-07-25

LOGARITHMIC CURRENT TO VOLTAGE CONVERTERS WITH EMITTER RESISTANCE COMPENSATION

#4
20240195392
2024-06-13

BASELINE RESTORER CIRCUIT

#5
20240195370
2024-06-13

RECEIVER CIRCUIT AND OPTICAL RECEIVER CIRCUIT

#6
20240146268
2024-05-02

REDUCTION OF NOISE AND WEAK AVALANCHE CURRENT INDUCED ERRORS IN BIPOLAR AMPLIFIERS

#7
20210303018
2021-09-30

Current mirror arrangements with adjustable offset buffers

#8
20200235820
2020-07-23

Optical receivers with DC cancellation bias circuit and embedded offset cancellation

#9
20200212952
2020-07-02

Method and apparatus for adjusting signal level in wireless communication system

#10
20200092010
2020-03-19

Optical receivers with DC cancellation bias circuit and embedded offset cancellation

#11
20190097593
2019-03-28

Offset cancellation scheme

#12
20170316896
2017-11-02

Control circuit for electric leakage circuit breaker

#13
20150171885
2015-06-18

Offset compensation circuit and method thereof

#14
20140145789
2014-05-29

Amplifier

#15
20140111280
2014-04-24

Electronic device, fiber-optic communication system comprising the electronic device and method of operating the electronic device

#16
20090224805
2009-09-10

Electronic circuit with compensation of intrinsic offset of differential pairs

#17
20080074198
2008-03-27

Photoreceiver/amplifier circuit, optical pickup device, and optical disk device

#18
20060152283
2006-07-13

Circuit and method for avoiding circuit performance degradation caused by time-variable thermal imbalances

#19
20060152282
2006-07-13

Differential amplifier circuit and method for reducing thermally induced offsets caused by large differential signals

#20
20050168860
2005-08-04

Integrated bias and offset recovery amplifier

#21
20050134371
2005-06-23

Offset cancellation and slice adjust amplifier circuit

#22
16135914
2019-12-03

Optical receivers with dc cancellation bias circuit and embedded offset cancellation