Ground reference fault detection in circuits with multiple ground references
US-2016363620-A1 · Dec 15, 2016 · US
Testing of circuits in sensor or actuator systems (testing of apparatus for measuring electric or magnetic variables G01R35/00; testing of indicating or recording apparatus G01D; in airbag systems B60R21/0173; checking gas analysers G01N33/007; monitoring or fail-safe circuits for electromagnets H01F7/1844)
Testing of circuits in sensor or actuator systems (testing of apparatus for measuring electric or magnetic variables G01R35/00; testing of indicating or recording apparatus G01D; in airbag systems B60R21/0173; checking gas analysers G01N33/007; monitoring or fail-safe circuits for electromagnets H01F7/1844) · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G01R31/2829 |
| Official title | {Testing of circuits in sensor or actuator systems (testing of apparatus for measuring electric or magnetic variables G01R35/00; testing of indicating or recording apparatus G01D; in airbag systems B60R21/0173; checking gas analysers G01N33/007; monitoring or fail-safe circuits for electromagnets H01F7/1844)} |
| Display label | Testing of circuits in sensor or actuator systems (testing of apparatus for measuring electric or magnetic variables G01R35/00; testing of indicating or recording apparatus G01D; in airbag systems B60R21/0173; checking gas analysers G01N33/007; monitoring or fail-safe circuits for electromagnets H01F7/1844) |
| Total patents | 834 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 53 |
| 2016 | 71 |
| 2017 | 77 |
| 2018 | 99 |
| 2019 | 97 |
| 2020 | 83 |
| 2021 | 90 |
| 2022 | 74 |
| 2023 | 65 |
| 2024 | 71 |
| 2025 | 42 |
| 2026 | 12 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Actuator control apparatus
US-2016331211-A1 · Nov 17, 2016 · US
System and method for detecting sensor leakage
US-9476928-B2 · Oct 25, 2016 · US
Apparatus and method for inspecting infrared solid-state image sensor
US-9404963-B2 · Aug 2, 2016 · US
Method for checking the proper method of operating of a current sensor
US-9372224-B2 · Jun 21, 2016 · US
Sensor circuit, vehicle and method therefor
US-2016154047-A1 · Jun 2, 2016 · US
Apparatus and a method for providing an output parameter and a sensor device
US-2016103173-A1 · Apr 14, 2016 · US
Method for diagnosing a variable reluctance magnetic detection head, and detection circuit
US-9217786-B2 · Dec 22, 2015 · US
Testing system and testing method for touch device
US-9213057-B2 · Dec 15, 2015 · US
System and method for detecting short-to-ground fault
US-2015354522-A1 · Dec 10, 2015 · US
Circuit testing method and circuit testing system
US-2015355257-A1 · Dec 10, 2015 · US
Apparatus for inspecting touch panel and method thereof
US-9207273-B2 · Dec 8, 2015 · US
Sensor output determination apparatus
US-2015323606-A1 · Nov 12, 2015 · US
Boost converter device
US-2015326124-A1 · Nov 12, 2015 · US
Electronic shaft shear detection conditioning circuit
US-9169742-B2 · Oct 27, 2015 · US
Systems and methods for monitoring fiber optic current sensing systems
US-2015293154-A1 · Oct 15, 2015 · US
Gas-sensor control device
US-2015268299-A1 · Sep 24, 2015 · US
Sensor Device
US-2015260765-A1 · Sep 17, 2015 · US
Information management system for construction machine
US-9133602-B2 · Sep 15, 2015 · US
Detection of stuck in range sensor and method
US-2015253368-A1 · Sep 10, 2015 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G01R31/2829?
- CPC G01R31/2829 is the Cooperative Patent Classification code for “Testing of circuits in sensor or actuator systems (testing of apparatus for measuring electric or magnetic variables G01R35/00; testing of indicating or recording apparatus G01D; in airbag systems B60R21/0173; checking gas analysers G01N33/007; monitoring or fail-safe circuits for electromagnets H01F7/1844).”
- How many patents are filed under CPC G01R31/2829 (Testing of circuits in sensor or actuator systems (testing of apparatus for measuring electric or magnetic variables G01R35/00; testing of indicating or recording apparatus G01D; in airbag systems B60R21/0173; checking gas analysers G01N33/007; monitoring or fail-safe circuits for electromagnets H01F7/1844))?
- Our database includes 834 publications tagged with this CPC code.
- Is patent activity under CPC G01R31/2829 growing?
- Publication counts under this code: 71 in 2024 vs 42 in 2025 (latest complete years).