Patents-Review.com
ClassID:

219567 āŽ˜

H03F2200/231 - CPC Classification

Classification description:

Indexing scheme relating to amplifiers the input of an amplifier can be switched on or off by a switch to amplify or not an input signal

Recent Application in this class:
#1
20240171144
2024-05-23

Differential To Single-Ended Summation Circuit With Improved Common-Mode Rejection Ratio

 #2
20240022220
2024-01-18

Drain sharing split LNA

 #3
20230188104
2023-06-15

POWER AMPLIFIER CHIP AND COMMUNICATION DEVICE

 #4
20230107218
2023-04-06

Drain sharing split LNA

 #5
20230016198
2023-01-19

Multi-band power amplifier module

 #6
20220255524
2022-08-11

Band pass filter

 #7
20220239305
2022-07-28

Differential source follower with current steering devices

 #8
20210328617
2021-10-21

Serdes with pin sharing

 #9
20210320679
2021-10-14

DC-coupled SERDES receiver

 #10
20210313933
2021-10-07

Devices and methods for offset cancellation

 #11
20210203291
2021-07-01

Current integrator for OLED panel

 #12
20210135636
2021-05-06

Drain sharing split LNA

 #13
20210058051
2021-02-25

Band pass filter

 #14
20210022017
2021-01-21

Signal amplifiers that switch to an attenuated or alternate communications path in response to a power interruption

 #15
20210021277
2021-01-21

Differential source follower with current steering devices

 #16
20200403574
2020-12-24

Multi-mode envelope tracking amplifier circuit

 #17
20200382073
2020-12-03

Disabled mode error reduction for high-voltage bilateral operational amplifier current source

 #18
20200294573
2020-09-17

Differential amplifier schemes for sensing memory cells

 #19
20200274545
2020-08-27

Differential source follower with current steering devices

 #20
20200227912
2020-07-16

Variable level power clamping circuit

 #21
20200212852
2020-07-02

Circuit with co-matching topology for transmitting and receiving RF signals

 #22
20200195208
2020-06-18

Multi-band power amplifier module

 #23
20200162034
2020-05-21

DEVICES AND METHODS RELATED TO FAST TURN-ON OF RADIO-FREQUENCY AMPLIFIERS

 #24
20190386616
2019-12-19

Front-end for processing 2G signal using 3G/4G paths

 #25
20190385663
2019-12-19

Differential amplifier schemes for sensing memory cells

 #26
20190339730
2019-11-07

Power-cycling voltage reference

 #27
20190265739
2019-08-29

Voltage regulator including fault detection circuit

 #28
20190250197
2019-08-15

Impedance measuring semiconductor circuit

 #29
20190245517
2019-08-08

Acoustic wave device, radio frequency front-end circuit, and communication device

 #30
20190245497
2019-08-08

Drain sharing split LNA

 #31
20190165752
2019-05-30

Band pass filter

 #32
20190158035
2019-05-23

Capacitively coupled chopper amplifier

 #33
20190140593
2019-05-09

Reduction of power consumption in integral ultra-wideband power amplifiers

 #34
20190122957
2019-04-25

Amplification apparatus

 #35
20190074268
2019-03-07

Configurable substrate and systems

 #36
20190059009
2019-02-21

Signal amplifiers that switch to an attenuated or alternate communications path in response to a power interruption

 #37
20190044481
2019-02-07

ARCHITECTURE FOR HIGH-BANDWIDTH POWER SUPPLY TO POWER AMPLIFIER (PA) DISTRIBUTION NETWORK

 #38
20190044480
2019-02-07

Multi-mode envelope tracking amplifier circuit

 #39
20190036497
2019-01-31

Reconfigurable amplifier and amplification method thereof

 #40
20190033431
2019-01-31

Circuit device, physical quantity measuring device, electronic apparatus, and vehicle

 #41
20180375481
2018-12-27

Iā€”V conversion module

 #42
20180342988
2018-11-29

Semiconductor device including an ESD protective element

 #43
20180337643
2018-11-22

Multi-band power amplifier module

 #44
20180323821
2018-11-08

Communications device with receiver chain of reduced size

 #45
20180267092
2018-09-20

Semiconductor device and electronic control system including the same

 #46
20180034424
2018-02-01

Methods related to fast turn-on of radio-frequency amplifiers

 #47
20170331366
2017-11-16

Switched-capacitor buffer and related methods

 #48
20170289826
2017-10-05

Signal amplifiers that switch to an attenuated or alternate communications path in response to a power interruption

 #49
20170214371
2017-07-27

Programmable low noise amplifier

 #50
20170205458
2017-07-20

Semiconductor device and electronic control system including the same

 #51
20170179895
2017-06-22

Power stage with switched mode amplifier and linear amplifier

 #52
20170005654
2017-01-05

Switching circuit

 #53
20160352289
2016-12-01

Front end circuit

 #54
20160233833
2016-08-11

Apparatus and system for rail-to-rail amplifier

 #55
20160211805
2016-07-21

Power amplification device and control method of power amplification device

 #56
20160191105
2016-06-30

Circuits and methods for 2G amplification using 3G/4G linear path combination

 #57
20160190995
2016-06-30

POWER AMPLIFIER INTERFACE COMPATIBLE WITH INPUTS SEPARATED BY MODE OR FREQUENCY

 #58
20160181985
2016-06-23

Amplifying device

 #59
20160126908
2016-05-05

Power stage with switched mode amplifier and linear amplifier

 #60
20160112018
2016-04-21

Circuits and methods for reducing supply sensitivity in a power amplifier

 #61
20160065133
2016-03-03

Power-efficient chopper amplifier

 #62
20160013765
2016-01-14

Current sense circuit using a single opamp having DC offset auto-zeroing

 #63
20160013760
2016-01-14

Circuits and devices related to fast turn-on of radio-frequency amplifiers

 #64
20150349728
2015-12-03

Current-voltage conversion amplifier circuit including multiplier with a current offset removal unit and multi input amplifier

 #65
20150249431
2015-09-03

Power amplification apparatus and control method

 #66
20150229275
2015-08-13

SEMICONDUCTOR DEVICE HAVING AN AMPLIFYING CIRCUIT

 #67
20150138960
2015-05-21

Signal amplifiers that switch to an attenuated or alternate communications path in response to a power interruption

 #68
20140139285
2014-05-22

Chopper amplifier

 #69
20090096527
2009-04-16

Automatic gain control circuit and low noise amplifying circuit

 #70
16730142
2020-12-08

Feed-forward power amplifier with offline tuning capability

 #71
16729495
2020-10-13

Current integrator and related signal processing system

 #72
16202101
2020-04-28

Single chip for generating multiple differential signals and loop-through signals according to a single-ended RF signal

 #73
15930971
2021-01-19

DC-coupled SERDES receiver

 #74
15920171
2019-08-20

Differential amplifier schemes for sensing memory cells

 #75
15810147
2018-12-04

Circuit with co-matching topology for transmitting and receiving RF signals

 #76
15728202
2018-12-18

Multi-mode envelope tracking amplifier circuit

 #77
14981527
2016-10-18

Apparatus and method for bypassing amplifiers used to amplify signals received by wireless communication systems