ClassID:

220024

H03F2203/45438 - 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 CMCL uses digital signals

Recent Application in this class:
#1
20250392273
2025-12-25

Systems and Methods for Improved Neurophysiological Monitoring

#2
20200395906
2020-12-17

Transconductance amplifier circuitry

#3
20180062583
2018-03-01

Fully-differential operational amplifier system

#4
20170077882
2017-03-16

Class-D amplifier with pulse-width modulation common-mode control and associated method for performing class-D amplification

#5
20120206197
2012-08-16

Differential amplifying apparatus

#6
20120133430
2012-05-31

Offset cancellation for audio amplifier

#7
20120034875
2012-02-09

Radio apparatus having first and second amplifiers and which performs direct current offset correction of the first and second amplifiers

#8
20110193623
2011-08-11

Large time constant steering circuit and instrumentation amplifier implementing same

#9
20110169569
2011-07-14

Device and method for eliminating feedback common mode signals

#10
20090267695
2009-10-29

Class AB output stage with programmable bias point control

#11
20090267693
2009-10-29

Resistor self-trim circuit for increased performance

#12
20090243663
2009-10-01

Analog comparator comprising a digital offset compensation

#13
20090195319
2009-08-06

Large time constant steering circuit and instrumentation amplifier implementing same

#14
20090189671
2009-07-30

Method and Apparatus for Improvement of Matching FET Currents Using a Digital to Analog Converter

#15
20090108936
2009-04-30

Combination trim and CMFB circuit and method for differential amplifiers

#16
20080048773
2008-02-28

Method and apparatus for DC offset cancellation in amplifiers

#17
20060049852
2006-03-09

Sense amplifier with low common mode differential input signal