Gated CDS integrator
US-10158335-B2 · Dec 18, 2018 · US
with semiconductor devices only
with semiconductor devices only · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H03F3/387 |
| Official title | with semiconductor devices only |
| Display label | with semiconductor devices only |
| Total patents | 236 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 12 |
| 2016 | 17 |
| 2017 | 21 |
| 2018 | 24 |
| 2019 | 20 |
| 2020 | 26 |
| 2021 | 21 |
| 2022 | 29 |
| 2023 | 21 |
| 2024 | 20 |
| 2025 | 21 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Ripple reduction filter for chopped amplifiers
US-2018337639-A1 · Nov 22, 2018 · US
Physical quantity detection circuit, physical quantity detection device, electronic apparatus, and vehicle
US-10116275-B2 · Oct 30, 2018 · US
Single-ended amplifier circuit with improved chopper configuration
US-10116267-B2 · Oct 30, 2018 · US
Signal amplification circuit
US-10079577-B2 · Sep 18, 2018 · US
Signal amplification circuit
US-2018175804-A1 · Jun 21, 2018 · US
Ripple reduction filter for chopped amplifiers
US-10003306-B1 · Jun 19, 2018 · US
Circuit and Method for a High Common Mode Rejection Amplifier by Using a Digitally Controlled Gain Trim Circuit
US-2018097490-A1 · Apr 5, 2018 · US
Fast settling capacitive gain amplifier circuit
US-2018076779-A1 · Mar 15, 2018 · US
Physical quantity detection circuit, physical quantity detection device, electronic apparatus, and vehicle
US-2018019717-A1 · Jan 18, 2018 · US
Detecting device and electronic apparatus
US-9804032-B2 · Oct 31, 2017 · US
Apparatus and method for processing signal
US-9762227-B2 · Sep 12, 2017 · US
Power amplifying apparatus
US-9748901-B2 · Aug 29, 2017 · US
Apparatus and methods for reducing input bias current of an electronic circuit
US-9735736-B2 · Aug 15, 2017 · US
High Dynamic Range Sensing Front-End for Neural Signal Recording Systems
US-2017230019-A1 · Aug 10, 2017 · US
Multi-channel amplifier with chopping
US-9729109-B2 · Aug 8, 2017 · US
Low noise amplifier circuit
US-2017207761-A1 · Jul 20, 2017 · US
Random chopper control circuit
US-9705455-B2 · Jul 11, 2017 · US
Electronic amplifier with a feedback circuit that includes a transconductance amplifier
US-9698742-B2 · Jul 4, 2017 · US
Amplifier system
US-9680429-B2 · Jun 13, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H03F3/387?
- CPC H03F3/387 is the Cooperative Patent Classification code for “with semiconductor devices only.”
- How many patents are filed under CPC H03F3/387 (with semiconductor devices only)?
- Our database includes 236 publications tagged with this CPC code.
- Is patent activity under CPC H03F3/387 growing?
- Publication counts under this code: 20 in 2024 vs 21 in 2025 (latest complete years).