ClassID:

220166

H03F2203/45722 - 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 LC comprising one or more source followers, as post buffer or driver stages, in cascade in the LC

Recent Application in this class:
#1
20180198421
2018-07-12

Circuit with voltage drop element

#2
20170338894
2017-11-23

Track and hold amplifiers

#3
20170054417
2017-02-23

System and method for improving total harmonic distortion of an amplifier

#4
20160164517
2016-06-09

High gain load circuit for a differential pair using depletion mode transistors

#5
20140132351
2014-05-15

Amplifier circuit

#6
20130294784
2013-11-07

Optical signal processing device and optical signal processing method

#7
20120262235
2012-10-18

Differential output stage

#8
20110227650
2011-09-22

RECEIVED-LIGHT AMPLIFYING CIRCUIT AND OPTICAL DISC APPARATUS

#9
20110025655
2011-02-03

OPERATIONAL AMPLIFIER AND SEMICONDUCTOR DEVICE USING THE SAME

#10
20100327940
2010-12-30

Embedded phase noise measurement system

#11
20100295617
2010-11-25

Apparatus and method for driving an LED

#12
20100246858
2010-09-30

Amplifier circuit

#13
20100102884
2010-04-29

Driver circuit and driver IC

#14
20100033249
2010-02-11

DIFFERENTIAL AMPLIFIER

#15
20100019946
2010-01-28

Amplifier networks with controlled common-mode level and converter systems for use therewith

#16
20090295480
2009-12-03

Amplifier circuit

#17
20090256634
2009-10-15

Output distortion cancellation circuit

#18
20090218477
2009-09-03

Image sensing apparatus and image sensing system

#19
20090108942
2009-04-30

Low noise, low power and high bandwidth capacitive feedback trans-impedance amplifier with differential FET input and bipolar emitter follower feedback

#20
20090108937
2009-04-30

Low noise amplifier and differential amplifier

#21
20090072904
2009-03-19

Variable gain amplifier having dual gain control

#22
20090072903
2009-03-19

Variable gain amplifier having variable gain DC offset loop

#23
20090021306
2009-01-22

Integrated circuit system for line regulation of an amplifier

#24
20080258818
2008-10-23

Amplifier with programmable input impedance

#25
20080238548
2008-10-02

Differential feedback amplifier circuit with cross coupled capacitors

#26
20080218272
2008-09-11

Wideband digital single-to-differential converter and method of forming same

#27
20080186091
2008-08-07

Dual transconductance amplifiers and differential amplifiers implemented using such dual transconductance amplifiers

#28
20080061877
2008-03-13

Common mode regulation for thermal tail compensation

#29
20080054162
2008-03-06

Optical semiconductor device having a shield wire and optical pickup device having a shield wire

#30
20080036537
2008-02-14

Wide-band low-noise CMOS amplifier

#31
20080024211
2008-01-31

Multi-operational amplifier system

#32
20070296497
2007-12-27

Amplifier circuit with cross-coupled cascode transistors

#33
20070290741
2007-12-20

Technique to improve the gain and signal to noise ratio in CMOS switched capacitor amplifiers

#34
20070279131
2007-12-06

Variable gain amplifier and differential amplifier

#35
20070228258
2007-10-04

Amplifier circuit and optical pickup device

#36
20070222484
2007-09-27

Input buffer

#37
20070211364
2007-09-13

Magnetoresistive head preamplifier circuit with programmable input impedance

#38
20070194846
2007-08-23

Multiplier-transimpedance amplifier combination with input common mode feedback

#39
20070194809
2007-08-23

Output stage with low output impedance and operating from a low power supply

#40
20070188232
2007-08-16

Wideband CMOS gain stage

#41
20070182482
2007-08-09

Technique to improve the gain and signal to noise ratio in CMOS switched capacitor amplifiers

#42
20070159247
2007-07-12

CMOS amplifier of filter for ultra wideband application and method of the same

#43
20070120599
2007-05-31

Multi-operational amplifier system

#44
20070096773
2007-05-03

Sample and hold circuit with multiple channel inputs, and analog-digital converter incorporating the same

#45
20070057729
2007-03-15

Power amplifier and wireless communication device

#46
20070040580
2007-02-22

Reference buffer with improved drift

#47
20070030059
2007-02-08

Technique to improve the gain and signal to noise ratio in CMOS switched capacitor amplifiers

#48
20070024368
2007-02-01

Differential amplifiers with enhanced gain and dynamic range

#49
20070018079
2007-01-25

Light-receiving amplifier circuit and optical pick-up device using the same

#50
20060293004
2006-12-28

Semiconductor integrated circuit device and wireless communication system

#51
20060220746
2006-10-05

Sensing circuit

#52
20060164170
2006-07-27

Small signal amplifier with large signal output boost stage

#53
20060072232
2006-04-06

Composite output stage for hard disk drive preamplifier

#54
20060044064
2006-03-02

Low noise amplifier

#55
20060001486
2006-01-05

Bias circuit for high frequency amplifiers

#56
20050258902
2005-11-24

Wideband CMOS gain stage

#57
20050253653
2005-11-17

Feedback amplifier having amplified signal path and feedback signal path separated

#58
20050206449
2005-09-22

Transconductance circuit

#59
20050194997
2005-09-08

Amplitude limiting circuit

#60
20050168275
2005-08-04

Common mode feedback in high speed differential output circuits

#61
20050162230
2005-07-28

Multi-operational amplifier system

#62
20050134390
2005-06-23

Bias circuit for high frequency amplifiers

#63
20050088232
2005-04-28

Techniques to lower drive impedance and provide reduced DC offset