Variable gain amplifier circuit
US-2024275350-A1 · Aug 15, 2024 · US
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Long tailed pairs (H03F3/45309, H03F3/45336 take precedence)
Long tailed pairs (H03F3/45309, H03F3/45336 take precedence) · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H03F3/45282 |
| Official title | {Long tailed pairs (H03F3/45309, H03F3/45336 take precedence)} |
| Display label | Long tailed pairs (H03F3/45309, H03F3/45336 take precedence) |
| Total patents | 22 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 5 |
| 2017 | 3 |
| 2021 | 4 |
| 2022 | 2 |
| 2023 | 3 |
| 2024 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Pre-amplification conditioning circuit for a transducer audio device
US-12021490-B2 · Jun 25, 2024 · US
Pre-amplification conditioning circuit for a transducer audio device
US-2023261617-A1 · Aug 17, 2023 · US
Pre-amplification conditioning circuit for a transducer audio device
US-2023246604-A1 · Aug 3, 2023 · US
Pre-amplification conditioning circuit for a transducer audio device
US-11711058-B1 · Jul 25, 2023 · US
Systems and methods for split-frequency amplification
US-11329616-B2 · May 10, 2022 · US
Operational amplifier
US-11316480-B2 · Apr 26, 2022 · US
Systems and methods for split-frequency amplification
US-2021175863-A1 · Jun 10, 2021 · US
Systems and methods for split-frequency amplification
US-10965260-B1 · Mar 30, 2021 · US
Systems and methods for split-frequency amplification
US-2021075381-A1 · Mar 11, 2021 · US
Operational Amplifier
US-2021067101-A1 · Mar 4, 2021 · US
Driver circuit
US-9673815-B2 · Jun 6, 2017 · US
Electronic device for a radiofrequency signal reception chain, comprising a low-noise transimpedance amplifier stage
US-9641143-B2 · May 2, 2017 · US
Driver circuit
US-2017033795-A1 · Feb 2, 2017 · US
Low power feed forward amplifier
US-2016315589-A1 · Oct 27, 2016 · US
Electronic device for a radiofrequency signal reception chain, comprising a low-noise transimpedance amplifier stage
US-2016308501-A1 · Oct 20, 2016 · US
Electronic device for a radiofrequency signal reception chain, comprising a low-noise transimpedance amplifier stage
US-9413307-B2 · Aug 9, 2016 · US
Driver circuit
US-9407259-B2 · Aug 2, 2016 · US
Electronic device for a radiofrequency signal reception chain, comprising a low-noise transimpedance amplifier stage
US-2016087594-A1 · Mar 24, 2016 · US
Driver circuit
US-2015381172-A1 · Dec 31, 2015 · US