Oscillator, electronic apparatus, and vehicle
US-2020287553-A1 · Sep 10, 2020 · US
Astable circuits
Astable circuits · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H03K3/03 |
| Official title | Astable circuits |
| Display label | Astable circuits |
| Total patents | 133 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 9 |
| 2016 | 12 |
| 2017 | 14 |
| 2018 | 5 |
| 2019 | 17 |
| 2020 | 25 |
| 2021 | 10 |
| 2022 | 9 |
| 2023 | 6 |
| 2024 | 11 |
| 2025 | 12 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Adaptive ramp signal generation
US-2020266702-A1 · Aug 20, 2020 · US
Data retention circuit
US-2020212912-A1 · Jul 2, 2020 · US
Built-in self-test method and apparatus for single-pin crystal oscillators
US-2019353700-A1 · Nov 21, 2019 · US
Techniques for detecting and correcting errors on a ring oscillator
US-10483951-B2 · Nov 19, 2019 · US
Voltage-controlled oscillator with high and low gain options
US-10454418-B1 · Oct 22, 2019 · US
Adaptive oscillator for clock generation
US-2019319609-A1 · Oct 17, 2019 · US
Variable resistance circuit, oscillator circuit, and semiconductor device
US-2019267972-A1 · Aug 29, 2019 · US
Method and apparatus for generating a charge pump control signal
US-10381051-B2 · Aug 13, 2019 · US
Adaptive oscillator for clock generation
US-10382014-B2 · Aug 13, 2019 · US
Oscillator
US-2019238121-A1 · Aug 1, 2019 · US
Ring voltage-controlled oscillator and phase-locked loop
US-2019238122-A1 · Aug 1, 2019 · US
Voltage controlled oscillator and phase locked loop comprising the same
US-10340929-B2 · Jul 2, 2019 · US
Oscillator, clock signal generator, electronic apparatus, and vehicle
US-2019196531-A1 · Jun 27, 2019 · US
Apparatuses and methods for temperature independent oscillators
US-2019123685-A1 · Apr 25, 2019 · US
Replica cascode bias voltage-controlled oscillators
US-10250263-B2 · Apr 2, 2019 · US
Semiconductor device, display panel, and electronic device
US-10249249-B2 · Apr 2, 2019 · US
Cr oscillator
US-2019068175-A1 · Feb 28, 2019 · US
Bistable-element for random number generation
US-10187044-B1 · Jan 22, 2019 · US
Apparatuses and methods for temperature independent oscillators
US-10171032-B2 · Jan 1, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H03K3/03?
- CPC H03K3/03 is the Cooperative Patent Classification code for “Astable circuits.”
- How many patents are filed under CPC H03K3/03 (Astable circuits)?
- Our database includes 133 publications tagged with this CPC code.
- Is patent activity under CPC H03K3/03 growing?
- Publication counts under this code: 11 in 2024 vs 12 in 2025 (latest complete years).