Synchronous detection circuit and method for extracting magnitude and phase from a waveform
US-10101371-B2 · Oct 16, 2018 · US
Circuits for comparing several input signals and for indicating the result of this comparison, e.g. equal, different, greater, smaller, or for passing one of the input signals as output signal
Circuits for comparing several input signals and for indicating the result of this comparison, e.g. equal, different, greater, smaller, or for passing one of the input signals as output signal · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G01R25/005 |
| Official title | {Circuits for comparing several input signals and for indicating the result of this comparison, e.g. equal, different, greater, smaller, or for passing one of the input signals as output signal} |
| Display label | Circuits for comparing several input signals and for indicating the result of this comparison, e.g. equal, different, greater, smaller, or for passing one of the input signals as output signal |
| Total patents | 213 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 16 |
| 2016 | 17 |
| 2017 | 19 |
| 2018 | 27 |
| 2019 | 20 |
| 2020 | 23 |
| 2021 | 24 |
| 2022 | 13 |
| 2023 | 14 |
| 2024 | 18 |
| 2025 | 18 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for identifying at least one diagnosis variable, measuring device and measuring system
US-2018292442-A1 · Oct 11, 2018 · US
Detector circuit
US-10048300-B2 · Aug 14, 2018 · US
Motor contorl device and method for controlling motor control device
US-2018191286-A1 · Jul 5, 2018 · US
Method for avoiding voltage instability in an electrical grid of an offshore wind park
US-9932966-B2 · Apr 3, 2018 · US
Testing integrated circuit designs containing multiple phase rotators
US-9927489-B2 · Mar 27, 2018 · US
Phase position verification system and method for an array antenna
US-9923269-B1 · Mar 20, 2018 · US
Method for analyzing heavy metal removal efficiency using phase difference analysis and apparatus using the same
US-2018011070-A1 · Jan 11, 2018 · US
Device for measuring loss in reactive power compensation system
US-2017350924-A1 · Dec 7, 2017 · US
Phased clock error handling
US-9832013-B2 · Nov 28, 2017 · US
Method of implementation of peak hold in a phasing voltmeter
US-9804204-B2 · Oct 31, 2017 · US
Methods and systems for measuring power in wireless power systems
US-9784777-B2 · Oct 10, 2017 · US
Rf phase offset detection circuit
US-2017279439-A1 · Sep 28, 2017 · US
Displacement sensor and displacement detection method
US-9772198-B2 · Sep 26, 2017 · US
Apparatus and method for determining a resonant frequency of an LC circuit in situ, by comparing voltage and current polarity changes
US-9733288-B2 · Aug 15, 2017 · US
Harmonic distortion separation method, nonlinear character determination method and apparatus and system
US-2017227585-A1 · Aug 10, 2017 · US
Phase difference detecting device
US-2017230042-A1 · Aug 10, 2017 · US
Phased clock error handling
US-2017222796-A1 · Aug 3, 2017 · US
Phase adjustment device, phase difference detecting device and phase-adjusting method
US-9722591-B2 · Aug 1, 2017 · US
Electrical Phase Identification
US-2017168098-A1 · Jun 15, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G01R25/005?
- CPC G01R25/005 is the Cooperative Patent Classification code for “Circuits for comparing several input signals and for indicating the result of this comparison, e.g. equal, different, greater, smaller, or for passing one of the input signals as output signal.”
- How many patents are filed under CPC G01R25/005 (Circuits for comparing several input signals and for indicating the result of this comparison, e.g. equal, different, greater, smaller, or for passing one of the input signals as output signal)?
- Our database includes 213 publications tagged with this CPC code.
- Is patent activity under CPC G01R25/005 growing?
- Publication counts under this code: 18 in 2024 vs 18 in 2025 (latest complete years).