Ramp signal generator and image sensor and electronic device including the same
US-12587767-B2 · Mar 24, 2026 · US
Linearisation of ramp (modifying slopes of pulses H03K6/04; scanning distortion correction for television receivers H04N3/23); Synchronisation of pulses
Linearisation of ramp (modifying slopes of pulses H03K6/04; scanning distortion correction for television receivers H04N3/23); Synchronisation of pulses · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H03K4/90 |
| Official title | Linearisation of ramp (modifying slopes of pulses H03K6/04; scanning distortion correction for television receivers H04N3/23); Synchronisation of pulses |
| Display label | Linearisation of ramp (modifying slopes of pulses H03K6/04; scanning distortion correction for television receivers H04N3/23); Synchronisation of pulses |
| Total patents | 45 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 10 |
| 2017 | 2 |
| 2018 | 6 |
| 2019 | 5 |
| 2020 | 4 |
| 2021 | 4 |
| 2022 | 2 |
| 2023 | 3 |
| 2024 | 1 |
| 2025 | 1 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Buffer circuit and imaging device
US-2026031801-A1 · Jan 29, 2026 · US
Ramp signal generator and image sensor and electronic device including the same
US-2025119668-A1 · Apr 10, 2025 · US
Pulse width modulated amplifier
US-11923813-B2 · Mar 5, 2024 · US
Trimming control circuit for current integration ramp dac settling assist circuit
US-2023336889-A1 · Oct 19, 2023 · US
Trimming control circuit for current integration ramp DAC settling assist circuit
US-11770634-B1 · Sep 26, 2023 · US
Current steering ramp compensation scheme and digital circuit implementation
US-11627273-B2 · Apr 11, 2023 · US
Current steering ramp compensation scheme and digital circuit implementation
US-2022321815-A1 · Oct 6, 2022 · US
Pulse Width Modulated Amplifier
US-2022094312-A1 · Mar 24, 2022 · US
Pulse width modulated amplifier
US-11177785-B1 · Nov 16, 2021 · US
Ramp signal generation device and CMOS image sensor including the same
US-10931268-B2 · Feb 23, 2021 · US
Power converter with phase error correction
US-2021018543-A1 · Jan 21, 2021 · US
Power converter with phase error correction
US-10884043-B1 · Jan 5, 2021 · US
Electronic device
US-10848136-B2 · Nov 24, 2020 · US
Common signal attenuation circuit and ramp signal generator using the same
US-10797682-B2 · Oct 6, 2020 · US
Electronic device
US-2020162063-A1 · May 21, 2020 · US
Electronic device
US-10560078-B2 · Feb 11, 2020 · US
Auto-tuned ramp generator
US-10498316-B2 · Dec 3, 2019 · US
Ramp signal generation device and cmos image sensor including the same
US-2019245527-A1 · Aug 8, 2019 · US
Auto-tuned ramp generator
US-2019222204-A1 · Jul 18, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H03K4/90?
- CPC H03K4/90 is the Cooperative Patent Classification code for “Linearisation of ramp (modifying slopes of pulses H03K6/04; scanning distortion correction for television receivers H04N3/23); Synchronisation of pulses.”
- How many patents are filed under CPC H03K4/90 (Linearisation of ramp (modifying slopes of pulses H03K6/04; scanning distortion correction for television receivers H04N3/23); Synchronisation of pulses)?
- Our database includes 45 publications tagged with this CPC code.
- Is patent activity under CPC H03K4/90 growing?
- Publication counts under this code: 1 in 2024 vs 1 in 2025 (latest complete years).