Integrator circuit
US-12592717-B2 · Mar 31, 2026 · US
by the use of a pair of integrators forming a closed loop
by the use of a pair of integrators forming a closed loop · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H03M3/406 |
| Official title | {by the use of a pair of integrators forming a closed loop} |
| Display label | by the use of a pair of integrators forming a closed loop |
| Total patents | 27 |
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 | 3 |
| 2017 | 6 |
| 2019 | 7 |
| 2020 | 2 |
| 2021 | 1 |
| 2022 | 2 |
| 2024 | 1 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Integrator circuit
US-2025365005-A1 · Nov 27, 2025 · US
Second order audio continuous time delta sigma modulator with resonator
US-2024275399-A1 · Aug 15, 2024 · US
Delta sigma modulator
US-11444635-B2 · Sep 13, 2022 · US
Delta sigma modulator
US-2022109452-A1 · Apr 7, 2022 · US
Thin-film large-area classifier
US-11182670-B2 · Nov 23, 2021 · US
Integrator circuit for use in a sigma-delta modulator
US-10826522-B2 · Nov 3, 2020 · US
Integrator Circuit for Use in a Sigma-Delta Modulator
US-2020083899-A1 · Mar 12, 2020 · US
Continuous-time delta-sigma modulator
US-2019386676-A1 · Dec 19, 2019 · US
Amplifier circuit
US-10498297-B2 · Dec 3, 2019 · US
Continuous-time delta-sigma modulator
US-10491237-B1 · Nov 26, 2019 · US
Digital silicon microphone with interpolation
US-10348326-B2 · Jul 9, 2019 · US
Thin-film large-area classifier
US-2019147329-A1 · May 16, 2019 · US
Digital Silicon Microphone with Interpolation
US-2019123762-A1 · Apr 25, 2019 · US
Amplifier circuit
US-2019007009-A1 · Jan 3, 2019 · US
Dither injection for continuous-time MASH ADCS
US-9838031-B2 · Dec 5, 2017 · US
Self-oscillating dual-slope integrating quantizer for sigma delta modulators
US-9825645-B1 · Nov 21, 2017 · US
Receiver for simultaneous signals in carrier aggregation
US-9768797-B2 · Sep 19, 2017 · US
Analog-to-digital converter with bandpass noise transfer function
US-9722746-B2 · Aug 1, 2017 · US
Dither injection for continuous-time mash adcs
US-2017179975-A1 · Jun 22, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H03M3/406?
- CPC H03M3/406 is the Cooperative Patent Classification code for “by the use of a pair of integrators forming a closed loop.”
- How many patents are filed under CPC H03M3/406 (by the use of a pair of integrators forming a closed loop)?
- Our database includes 27 publications tagged with this CPC code.
- Is patent activity under CPC H03M3/406 growing?
- Publication counts under this code: 1 in 2024 vs 1 in 2025 (latest complete years).