A method for determining a distance to a passive intermodulation source, an apparatus and a computer program product
US-2019312655-A1 · Oct 10, 2019 · US
Measurement of non-linear distortion
Measurement of non-linear distortion · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G01R23/20 |
| Official title | Measurement of non-linear distortion |
| Display label | Measurement of non-linear distortion |
| Total patents | 202 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 13 |
| 2016 | 12 |
| 2017 | 12 |
| 2018 | 16 |
| 2019 | 24 |
| 2020 | 19 |
| 2021 | 30 |
| 2022 | 20 |
| 2023 | 18 |
| 2024 | 15 |
| 2025 | 20 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
System and method for iterative condition monitoring and fault diagnosis of electric machines
US-10429419-B2 · Oct 1, 2019 · US
Methods and apparatuses for measuring the distance to a passive intermodulation source
US-2019273564-A1 · Sep 5, 2019 · US
Structures and methods for RF de-embedding
US-10393782-B2 · Aug 27, 2019 · US
Nonlinear distortion detection
US-2019064236-A1 · Feb 28, 2019 · US
Method for detecting an open-phase condition of a transformer
US-2019027919-A1 · Jan 24, 2019 · US
Systems and Methods for Duty Cycle Measurement, Analysis, and Compensation
US-2019004111-A1 · Jan 3, 2019 · US
Method and system for phase synchronization and calibration of a multiport vector network analyzer using a single phase reference
US-10145930-B1 · Dec 4, 2018 · US
Technique for Determining Performance Characteristics Of Electronic Devices And Systems
US-2018335477-A1 · Nov 22, 2018 · US
Method and a measuring device for measuring broadband measurement signals
US-10088554-B2 · Oct 2, 2018 · US
Method for detecting an open-phase condition of a transformer
US-10090665-B2 · Oct 2, 2018 · US
Determining a fundamental component of an ac voltage
US-2018267085-A1 · Sep 20, 2018 · US
Motor drive control device and method for determining controlled frequency for motor
US-2018259560-A1 · Sep 13, 2018 · US
System and method for testing network-side harmonic component of motor train unit
US-2018180651-A1 · Jun 28, 2018 · US
Testing methods using spread-spectrum excitation signals and related test apparatus
US-10009121-B2 · Jun 26, 2018 · US
Method and device for monitoring and suppressing resonance
US-10003198-B2 · Jun 19, 2018 · US
Technique for determining performance characteristics of electronic devices and systems
US-9977076-B2 · May 22, 2018 · US
Passive intermodulation measurement device and relay unit including the same
US-2018128865-A1 · May 10, 2018 · US
Power conversion device
US-2018102715-A1 · Apr 12, 2018 · US
Noise figure measurement using narrowband compensation
US-9939479-B2 · Apr 10, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G01R23/20?
- CPC G01R23/20 is the Cooperative Patent Classification code for “Measurement of non-linear distortion.”
- How many patents are filed under CPC G01R23/20 (Measurement of non-linear distortion)?
- Our database includes 202 publications tagged with this CPC code.
- Is patent activity under CPC G01R23/20 growing?
- Publication counts under this code: 15 in 2024 vs 20 in 2025 (latest complete years).