Signal modulation apparatus and signal modulation method
US-12556435-B2 · Feb 17, 2026 · US
using digital techniques
using digital techniques · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H03K4/026 |
| Official title | {using digital techniques} |
| Display label | using digital techniques |
| Total patents | 59 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 9 |
| 2016 | 6 |
| 2017 | 4 |
| 2018 | 3 |
| 2019 | 9 |
| 2020 | 4 |
| 2021 | 5 |
| 2022 | 5 |
| 2023 | 3 |
| 2024 | 5 |
| 2025 | 4 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Electronic circuit and method for generating a ramped current signal
US-2026005678-A1 · Jan 1, 2026 · US
Digital to analog converter
US-12401370-B2 · Aug 26, 2025 · US
Semiconductor device, display module, and electronic device
US-2025069564-A1 · Feb 27, 2025 · US
Waveform generator
US-2025060466-A1 · Feb 20, 2025 · US
Semiconductor device, display module, and electronic device
US-12190842-B2 · Jan 7, 2025 · US
Waveform generator
US-12140714-B2 · Nov 12, 2024 · US
Load Dependent Discharge For Voltage Controlled Oscillator-Based Charge Pump Regulator
US-2024322806-A1 · Sep 26, 2024 · US
Signal modulation apparatus and signal modulation method
US-2024314005-A1 · Sep 19, 2024 · US
Load dependent discharge for voltage controlled oscillator-based charge pump regulator
US-12028078-B2 · Jul 2, 2024 · US
Load Dependent Discharge For Voltage Controlled Oscillator-Based Charge Pump Regulator
US-2024072783-A1 · Feb 29, 2024 · US
Semiconductor device, display module, and electronic device
US-2023162697-A1 · May 25, 2023 · US
Clock selector circuit
US-11637550-B2 · Apr 25, 2023 · US
Device and method of generating nonlinear waveform signal
US-11552623-B2 · Jan 10, 2023 · US
Systems and methods for output channel architectures in implantable pulse generators
US-11464981-B2 · Oct 11, 2022 · US
Clock selector circuit
US-2022286122-A1 · Sep 8, 2022 · US
Device and method of generating nonliniear waveform signal
US-2022209755-A1 · Jun 30, 2022 · US
Waveform generator and waveform generating method
US-11283457-B2 · Mar 22, 2022 · US
Image sensing device generating ramp voltage with coarse ramp current and fine ramp current for single ramp period
US-11252364-B2 · Feb 15, 2022 · US
Waveform generator
US-2021270950-A1 · Sep 2, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H03K4/026?
- CPC H03K4/026 is the Cooperative Patent Classification code for “using digital techniques.”
- How many patents are filed under CPC H03K4/026 (using digital techniques)?
- Our database includes 59 publications tagged with this CPC code.
- Is patent activity under CPC H03K4/026 growing?
- Publication counts under this code: 5 in 2024 vs 4 in 2025 (latest complete years).