Class H03F : AMPLIFIERS
Subclass 1/14: Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements (wide-band amplifiers with inter-stage coupling networks incorporating these impedances H03F 1/42; eliminating transit-time effects in vacuum tubes H01J 21/34) by use of neutralising means
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12212292 | Devices and methods involving power-amplification architecture using T-network | Sep 28, 21 | Jan 28, 25 | The Board of Trustees of the Leland Stanford Junior University |
| 12199576 | Gain reduction techniques for radio-frequency amplifiers | Jan 20, 22 | Jan 14, 25 | Apple Inc. |
| 12149208 | Electronic circuit and power amplifier comprising same | Feb 11, 20 | Nov 19, 24 | Samsung Electronics Co., Ltd.; Korea Advanced Institute of Science and Technology; |
| 12051998 | Amplifier circuit | Apr 22, 22 | Jul 30, 24 | Sumitomo Electric Industries Ltd. |
| 12047044 | Power amplifier module | May 20, 21 | Jul 23, 24 | Murata Manufacturing Co Ltd. |
| 12028027 | Matching circuit with switchable load lines, load line switching method and power amplifier | Mar 28, 19 | Jul 02, 24 | Not available |
| 12003221 | Dual-mode power amplifier with switchable working power and mode switch method | Mar 28, 19 | Jun 04, 24 | Not available |
| 11973474 | Power amplifiers and transmission systems and methods of broadband and efficient operations | Apr 20, 20 | Apr 30, 24 | Georgia Tech Research Corporation |
| 11837997 | Differential amplifier with variable neutralization | Dec 10, 20 | Dec 05, 23 | Texas Instruments Incorporated |
| 11824391 | Controlled transition to regulation | Apr 28, 20 | Nov 21, 23 | Agilent Technologies Texas Instruments Incorporated |
| 11784618 | Chopper-stabilized programmable gain amplifier | Oct 04, 21 | Oct 10, 23 | Agilent Technologies Texas Instruments Incorporated |
| 11509271 | Power amplifier module | Dec 28, 20 | Nov 22, 22 | Murata Manufacturing Co Ltd. |
| 11482977 | Amplifier circuit structure and method for controlling circuit | Dec 12, 20 | Oct 25, 22 | SMARTER MICROELECTRONICS (GUANG ZHOU) CO., LTD |
| 11469712 | Radio frequency circuit, communication device, and antenna module | Jun 10, 20 | Oct 11, 22 | Murata Manufacturing Co Ltd. |
| 11437965 | Variable gain amplifier and wireless communication device | Sep 11, 20 | Sep 06, 22 | KABUSHIKI KAISHA TOSHIBA; TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION; |
| 11309847 | Amplifier circuit | Aug 28, 20 | Apr 19, 22 | Murata Manufacturing Co Ltd. |
| 11296732 | Radio frequency signal transmission circuit with a high switching speed | Jul 05, 20 | Apr 05, 22 | RichWave Technology Corp. |
| 11114984 | Audio device for reducing pop noise and processing method thereof | Jul 24, 19 | Sep 07, 21 | Realtek Semiconductor Corp. |
| 10903804 | Differential amplifier with variable neutralization | Nov 07, 19 | Jan 26, 21 | Agilent Technologies Texas Instruments Incorporated |
| 10897229 | Compensation circuit for operational amplifier, integrated circuit and display panel | May 15, 20 | Jan 19, 21 | SeeYA Optronics Co., Ltd. |
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2024/0056,043 | LINEAR AND BANDWIDTH RECONFIGURABLE CURRENT BUFFER OR AMPLIFIER | Aug 12, 22 | Feb 15, 24 | Not available |
| 2024/0022,213 | FREQUENCY COMPENSATION OF AMPLIFIERS | Nov 02, 21 | Jan 18, 24 | Not available |
| 2023/0198,472 | Amplifier Circuit | Nov 16, 20 | Jun 22, 23 | Not available |
| 2023/0198,473 | AMPLIFIER CIRCUIT HAVING LOW PARASITIC POLE EFFECT AND BUFFER CIRCUIT THEREOF | Nov 17, 22 | Jun 22, 23 | Not available |
| 2018/0131,330 | AMPLIFIER AND OPTICAL TRANSMITTER USING THE SAME | Nov 09, 17 | May 10, 18 | Sumitomo Electric Industries Ltd. |
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