H03F2203/45372 - CPC Classification Index

ClassID:

219991 ⎘

H03F2203/45372 - 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 potentiometers

Recent Application in this class:

20190214953

2019-07-11

High linearly WiGig baseband amplifier with channel select filter

20180198421

2018-07-12

Circuit with voltage drop element

20180097489

2018-04-05

High linearly WiGig baseband amplifier with channel select filter

20170141746

2017-05-18

High linearly WiGig baseband amplifier with channel select filter

20150381115

2015-12-31

Emphasis circuit

20140340148

2014-11-20

Variable gain amplifier

20140003162

2014-01-02

Small signal receiver and integrated circuit including the same

20130314156

2013-11-28

Variable gain amplifier

20120326787

2012-12-27

VARIABLE-GAIN AMPLIFIER CIRCCUIT AND RECEIVER INCLUDING THE SAME

#10

20120242408

2012-09-27

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

#11

20120064836

2012-03-15

Amplifier circuit for a ranging transceiver

#12

20110095822

2011-04-28

Variable-gain low noise amplifier

#13

20080061745

2008-03-13

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

#14

20070296492

2007-12-27

Single stage balanced voltage amplifier

#15

20070115058

2007-05-24

Variable gain amplifier having linear-in-decibel transconductance

#16

20050195035

2005-09-08

Variable gain amplifier having linear-in-decibel transconductance