H03F2203/45494 - CPC Classification Index

ClassID:

220052 ⎘

H03F2203/45494 - 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 CSC comprising one or more potentiometers

Recent Application in this class:

20190229683

2019-07-25

Methods of adjusting gain error in instrumentation amplifiers

20180323748

2018-11-08

Methods of adjusting gain error in instrumentation amplifiers

20170019074

2017-01-19

Low noise amplifier

20160294383

2016-10-06

Programmable high-speed equalizer and related method

20160020740

2016-01-21

Wideband low-power amplifier

20150381115

2015-12-31

Emphasis circuit

20150280666

2015-10-01

Differential amplification circuit and semiconductor integrated circuit

20140247091

2014-09-04

Adaptive biasing technique for audio circuitry

20140225669

2014-08-14

Extended variable gain amplification bandwidth with high-frequency boost

#10

20140050260

2014-02-20

Switched continuous time linear equalizer with integrated sampler

#11

20140029143

2014-01-30

Receiver having a wide common mode input range

#12

20130207722

2013-08-15

Peaking amplifier with capacitively-coupled parallel input stages

#13

20120242408

2012-09-27

Low noise variable gain amplifier utilizing variable feedback techniques with constant input/output impedance

#14

20120188031

2012-07-26

Programmable high-frequency high-gain equalizer for digital display interfaces

#15

20120025911

2012-02-02

Low noise amplifier with current bleeding branch

#16

20120001675

2012-01-05

Transconductance amplifier

#17

20110121871

2011-05-26

Transconductance amplifier

#18

20110090010

2011-04-21

Variable gain amplification device

#19

20110025419

2011-02-03

Differential amplifier with offset voltage trimming

#20

20100291890

2010-11-18

Receiver

#21

20100244961

2010-09-30

Differential amplifier

#22

20100141340

2010-06-10

Method and apparatus for a high bandwidth amplifier with wide band peaking

#23

20100019842

2010-01-28

Low-noise, wide offset range, programmable input offset amplifier front end and method

#24

20090302888

2009-12-10

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

#25

20090167402

2009-07-02

Dual barrel receiver equalization architecture

#26

20090115461

2009-05-07

Current converting method, transconductance amplifier and filter circuit using the same

#27

20080297251

2008-12-04

Digitally adjusted variable gain amplifier (VGA) using switchable differential pairs

#28

20080191803

2008-08-14

Variable gain amplifying circuit

#29

20080048736

2008-02-28

Differential circuit and output buffer circuit including the same

#30

20080007340

2008-01-10

Digitally adjusted variable gain amplifier (VGA) using switchable differential pairs

#31

20070210870

2007-09-13

Transconductance stage providing gain control

#32

20070120602

2007-05-31

Variable gain power amplifier

#33

20060284671

2006-12-21

Variable gain amplifier circuit, method of correcting DC offset of the variable gain amplifying circuit, and radio receiving apparatus

#34

20060244530

2006-11-02

Digitally adjustable variable gain amplifier (VGA) using switchable differential pairs

#35

20060044662

2006-03-02

Method to vary symmetry and coupling in symmetrical write drivers for disk driver preamplifiers