ClassID:

219574

H03F2200/249 - CPC Classification

Classification description:

Indexing scheme relating to amplifiers A switch coupled in the input circuit of an amplifier being controlled by a circuit, e.g. feedback circuitry being controlling the switch

Recent Application in this class:
#1
20250158572
2025-05-15

Standby Voltage Condition for Fast RF Amplifier Bias Recovery

#2
20250132606
2025-04-24

Wireless Charging With Hybrid Sin/Square Reconfigurable RF Waveform

#3
20240405724
2024-12-05

Standby voltage condition for fast RF amplifier bias recovery

#4
20240162865
2024-05-16

Parallel cascode amplifier for enhanced low-power mode efficiency

#5
20240022220
2024-01-18

Drain sharing split LNA

#6
20230396217
2023-12-07

Standby voltage condition for fast RF amplifier bias recovery

#7
20230107218
2023-04-06

Drain sharing split LNA

#8
20230081055
2023-03-16

Standby voltage condition for fast RF amplifier bias recovery

#9
20220255514
2022-08-11

Parallel cascode amplifier for enhanced low-power mode efficiency

#10
20210135636
2021-05-06

Drain sharing split LNA

#11
20210119583
2021-04-22

Standby voltage condition for fast RF amplifier bias recovery

#12
20200266782
2020-08-20

Method of forming a semiconductor device and structure therefor

#13
20200220503
2020-07-09

LOW NOISE AMPLIFIER AND SEMICONDUCTOR DEVICE

#14
20200203291
2020-06-25

Radio frequency module and communication device

#15
20200186110
2020-06-11

Methods and apparatus for a dual mode operational amplifier

#16
20200162029
2020-05-21

Circuits, devices and methods related to amplification with active gain bypass

#17
20200106405
2020-04-02

Parallel cascode amplifier for enhanced low-power mode efficiency

#18
20190263712
2019-08-29

Process of using a submerged combustion melter to produce hollow glass fiber or solid glass fiber having entrained bubbles, and burners and systems to make such fibers

#19
20190190459
2019-06-20

Standby voltage condition for fast RF amplifier bias recovery

#20
20190158040
2019-05-23

Enhanced Reverse Isolation and Gain Using Feedback

#21
20190123696
2019-04-25

Low noise amplifier and radio frequency amplification method using the same

#22
20190081651
2019-03-14

Radio frequency circuit, radio-frequency front-end circuit, and communication device

#23
20190036497
2019-01-31

Reconfigurable amplifier and amplification method thereof

#24
20180241357
2018-08-23

Photoelectric conversion device

#25
20180175807
2018-06-21

LNA with programmable linearity

#26
20180083577
2018-03-22

Standby voltage condition for fast RF amplifier bias recovery

#27
20180076774
2018-03-15

Radio-frequency amplifier having active gain bypass circuit

#28
20170360315
2017-12-21

Conversion circuit and detection circuit

#29
20170302304
2017-10-19

Amplifier device for high frequency signals

#30
20170237461
2017-08-17

Pulse-shaping LDO provides first and second slew-rate increases in amplitude

#31
20160294331
2016-10-06

Apparatus and methods for chopping ripple reduction in amplifiers

#32
20160276989
2016-09-22

Semiconductor integrated circuit device

#33
20160248388
2016-08-25

System and method for a low noise amplifier module

#34
20160233905
2016-08-11

Tunable radio frequency low noise amplifier

#35
20160112018
2016-04-21

Circuits and methods for reducing supply sensitivity in a power amplifier

#36
20150357979
2015-12-10

Operational amplifier

#37
20150311868
2015-10-29

Digitally-programmable gain amplifier with direct-charge transfer and offset cancellation

#38
20150229278
2015-08-13

Chopped operational-amplifier (OP-AMP) system

#39
20140269892
2014-09-18

Apparatus and method for a digital transmitter architecture with outphasing power amplifier

#40
20140225666
2014-08-14

Redundant amplifier and switching method thereof

#41
20140003621
2014-01-02

Grounding switch method and apparatus

#42
20130163577
2013-06-27

POWER AMPLIFYING CIRCUIT AND WIRELESS COMMUNICATION DEVICE

#43
20130094661
2013-04-18

Power management controller for drivers

#44
20130029624
2013-01-31

Method of diminishing the minimum range of operation of a communication link

#45
20120178397
2012-07-12

Receiver applied to a satellite down converter and radio frequency metal-oxide-semiconductor amplifier

#46
20120064836
2012-03-15

Amplifier circuit for a ranging transceiver

#47
20120032743
2012-02-09

Low-noise amplifier with gain enhancement

#48
20120032742
2012-02-09

CMOS millimeter-wave variable-gain low-noise amplifier

#49
20120025914
2012-02-02

CMOS power amplifier

#50
20120007673
2012-01-12

Amplifier with wide gain range

#51
20120002821
2012-01-05

Grounding switch method and apparatus

#52
20110228171
2011-09-22

Automatically setting an operative state of a wideband amplifier

#53
20110222444
2011-09-15

Split-band power amplifiers and duplexers for LTE-advanced front end for improved IMD

#54
20110222443
2011-09-15

LTE-Advanced (4G) front end radio architecture

#55
20100158278
2010-06-24

Power management controller for drivers

#56
20100156683
2010-06-24

Amplifier circuit and A/D converter

#57
20090208032
2009-08-20

Pop noise suppression apparatus and audio output system utilizing the same

#58
20090096527
2009-04-16

Automatic gain control circuit and low noise amplifying circuit

#59
20090066439
2009-03-12

Input circuitry for transistor power amplifier and method for designing such circuitry

#60
20090066411
2009-03-12

Method for designing input circuitry for transistor power amplifier

#61
20080217519
2008-09-11

Photoelectric conversion device

#62
20080029753
2008-02-07

Configurable circuits using phase change switches

#63
20080001672
2008-01-03

Auto-range current mirror circuit

#64
20070252651
2007-11-01

Power Amplifier With A Output Matching Network

#65
20070252644
2007-11-01

Audio power amplifier IC and audio system provided with the same

#66
20070194853
2007-08-23

High-power amplifier

#67
20070147553
2007-06-28

Automatically setting an operative state of a wideband amplifier

#68
20070115065
2007-05-24

Stabilization circuit and multiband amplification circuit

#69
20060202764
2006-09-14

Bias circuit

#70
15268297
2017-12-05

Standby voltage condition for fast RF amplifier bias recovery