Patents-Review.com
ClassID:

220155 ⎘

H03F2203/45701 - 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 resistor

Recent Application in this class:
#1
20250158584
2025-05-15

High-performance audio amplifier

 #2
20200366252
2020-11-19

Class D transconductance amplifier

 #3
20200266787
2020-08-20

Amplifier, and receiving circuit, semiconductor apparatus and semiconductor system including the amplifier

 #4
20200266771
2020-08-20

Class D transconductance amplifier

 #5
20200021260
2020-01-16

Amplification circuit, and receiving circuit, semiconductor apparatus and semiconductor system using the amplification circuit

 #6
20190296756
2019-09-26

Low power amplifier structures and calibrations for the low power amplifier structures

 #7
20180309415
2018-10-25

Amplifier circuit having poly resistor with biased depletion region

 #8
20180198421
2018-07-12

Circuit with voltage drop element

 #9
20180198413
2018-07-12

Semiconductor integrated circuit, sensor reader, and sensor readout method

 #10
20170272036
2017-09-21

Front-end amplifier circuits for biomedical electronics

 #11
20170187333
2017-06-29

Non-inverting amplifier circuits

 #12
20160299519
2016-10-13

Zero drift, limitless and adjustable reference voltage generation

 #13
20160164517
2016-06-09

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

 #14
20160142017
2016-05-19

Reconfigurable operational amplifier

 #15
20150212133
2015-07-30

Noise sensor

 #16
20140240044
2014-08-28

Dual path operational amplifier

 #17
20140240043
2014-08-28

Amplifier circuit with improved slew rate

 #18
20140210560
2014-07-31

Triple cascode power amplifier

 #19
20130114665
2013-05-09

Low nonlinear distortion variable gain amplifier

 #20
20130113569
2013-05-09

Cross-coupled multipath feedforward operational amplifiers

 #21
20120313704
2012-12-13

Differential amplifier stage with integrated offset cancellation circuit

 #22
20120293263
2012-11-22

Operational amplifier

 #23
20120262236
2012-10-18

Differential amplifying circuit

 #24
20120121273
2012-05-17

Common base circuit with output compensation, current-to-voltage circuit configured with common base amplifier, and optical receiver implemented with the same

 #25
20120086510
2012-04-12

Common-mode feedback amplifier

 #26
20120046004
2012-02-23

High performance transmitter preamplification chain with calibration feedback

 #27
20120013404
2012-01-19

Method and apparatus for broadband input matching with noise and non-linearity cancellation in power amplifiers

 #28
20120001697
2012-01-05

Differential amplifier stage with integrated offset cancellation circuit

 #29
20110234312
2011-09-29

AMPLIFIER WITH IMPROVED STABILITY

 #30
20110169568
2011-07-14

Operational amplifier

 #31
20110109389
2011-05-12

Amplifier circuit, integrated circuit and radio frequency communication unit

 #32
20110095818
2011-04-28

Method and apparatus for accurately measuring currents using on chip sense resistors

 #33
20100277215
2010-11-04

Wideband voltage translators

 #34
20100052786
2010-03-04

Automatic gain control apparatus and technique

 #35
20090289714
2009-11-26

Operational amplifier

 #36
20090261905
2009-10-22

OPEN GAIN ADJUSTMENT CIRCUIT FOR OPERATIONAL AMPLIFIER

 #37
20090167361
2009-07-02

High-speed amplitude detector with a digital output

 #38
20070115058
2007-05-24

Variable gain amplifier having linear-in-decibel transconductance

 #39
20050200412
2005-09-15

Differential amplifier for balanced/unbalanced converter

 #40
20050195035
2005-09-08

Variable gain amplifier having linear-in-decibel transconductance