Dual loop bias circuit with offset compensation
US-2020393706-A1 · Dec 17, 2020 · US
by using a feedback circuit
by using a feedback circuit · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H03F3/45973 |
| Official title | {by using a feedback circuit} |
| Display label | by using a feedback circuit |
| Total patents | 126 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 3 |
| 2017 | 13 |
| 2018 | 17 |
| 2019 | 13 |
| 2020 | 16 |
| 2021 | 15 |
| 2022 | 17 |
| 2023 | 8 |
| 2024 | 4 |
| 2025 | 10 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Low-noise differential to single-ended converter
US-2020304083-A1 · Sep 24, 2020 · US
Optical receivers with dc cancellation bias circuit and embedded offset cancellation
US-2020235820-A1 · Jul 23, 2020 · US
Variable gain circuit and transimpedance amplifier using the same
US-10608599-B2 · Mar 31, 2020 · US
Differential trans-impedance amplifier
US-2020091881-A1 · Mar 19, 2020 · US
Amplifier offset cancellation using amplifier supply voltage
US-2020059200-A1 · Feb 20, 2020 · US
Transimpedance amplifier
US-2020007087-A1 · Jan 2, 2020 · US
Impedance circuit with poly-resistor
US-10510823-B2 · Dec 17, 2019 · US
Optical receivers with dc cancellation bias circuit and embedded offset cancellation
US-10498461-B1 · Dec 3, 2019 · US
Envelope tracking bias circuit
US-10476438-B2 · Nov 12, 2019 · US
Photodetector circuit
US-2019334485-A1 · Oct 31, 2019 · US
Variable gain amplifier, correction method and receiving device
US-10312877-B2 · Jun 4, 2019 · US
Offset Cancellation Scheme
US-2019097593-A1 · Mar 28, 2019 · US
DC offset calibration circuit
US-10224910-B1 · Mar 5, 2019 · US
Peak detector and operational amplifier circuit therein
US-10224879-B1 · Mar 5, 2019 · US
DC Offset Calibration Circuit
US-2019068176-A1 · Feb 28, 2019 · US
Envelope tracking bias circuit
US-2019068122-A1 · Feb 28, 2019 · US
Variable gain circuit and transimpedance amplifier using the same
US-2019052236-A1 · Feb 14, 2019 · US
Transmipedance amplifier circuit, related integrated circuit, receiver circuit and method of operating a transimpedance amplifier circuit
US-10187026-B2 · Jan 22, 2019 · US
RF class AB cascode amplifier with linearization and steering diodes
US-10187022-B2 · Jan 22, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H03F3/45973?
- CPC H03F3/45973 is the Cooperative Patent Classification code for “by using a feedback circuit.”
- How many patents are filed under CPC H03F3/45973 (by using a feedback circuit)?
- Our database includes 126 publications tagged with this CPC code.
- Is patent activity under CPC H03F3/45973 growing?
- Publication counts under this code: 4 in 2024 vs 10 in 2025 (latest complete years).