Call test system and method thereof
US-12407774-B2 · Sep 2, 2025 · US
with means for applying test signals {or for measuring}
with means for applying test signals {or for measuring} · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H04M3/26 |
| Official title | with means for applying test signals {or for measuring} |
| Display label | with means for applying test signals {or for measuring} |
| Total patents | 42 |
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 | 7 |
| 2016 | 4 |
| 2017 | 4 |
| 2018 | 4 |
| 2019 | 3 |
| 2020 | 3 |
| 2021 | 6 |
| 2022 | 5 |
| 2023 | 3 |
| 2024 | 2 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
End-to-end emergency call testing
US-2024267455-A1 · Aug 8, 2024 · US
Data correction apparatus, data correction method, and program
US-11924368-B2 · Mar 5, 2024 · US
Call test system and method thereof
US-2023412728-A1 · Dec 21, 2023 · US
Call set up failure rate metric and communication network optimization based thereon
US-11825016-B2 · Nov 21, 2023 · US
Remote verification of the condition of a mobile device
US-2023188998-A1 · Jun 15, 2023 · US
Method of determining the quality of voice data with transmission via a network, method of and an apparatus for performing a telephone call
US-11489960-B2 · Nov 1, 2022 · US
Call set up failure rate metric and communication network optimization based thereon
US-2022345567-A1 · Oct 27, 2022 · US
Data correction apparatus, data correction method, and program
US-2022279066-A1 · Sep 1, 2022 · US
Line test system and line test method
US-2022279368-A1 · Sep 1, 2022 · US
Call set up failure rate metric and communication network optimization based thereon
US-11381678-B2 · Jul 5, 2022 · US
Method and apparatus for testing dialogue platform, and storage medium
US-2021390042-A1 · Dec 16, 2021 · US
Call set up failure rate metric and communication network optimization based thereon
US-2021368040-A1 · Nov 25, 2021 · US
Methods and apparatus for beam failure detection
US-11050877-B2 · Jun 29, 2021 · US
Method of determining the quality of voice data with transmission via a network, method of and an apparatus for performing a telephone call
US-2021185168-A1 · Jun 17, 2021 · US
Method and apparatus for determining a bridged tap length
US-10938981-B2 · Mar 2, 2021 · US
Emergency Network Test Apparatus and Method
US-2021058508-A1 · Feb 25, 2021 · US
Method and apparatus for determining a bridged tap length
US-2020366785-A1 · Nov 19, 2020 · US
Crosstalk mitigation for out-of-band tones
US-10727899-B2 · Jul 28, 2020 · US
Methods and apparatus for beam failure detection
US-2020007678-A1 · Jan 2, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H04M3/26?
- CPC H04M3/26 is the Cooperative Patent Classification code for “with means for applying test signals {or for measuring}.”
- How many patents are filed under CPC H04M3/26 (with means for applying test signals {or for measuring})?
- Our database includes 42 publications tagged with this CPC code.
- Is patent activity under CPC H04M3/26 growing?
- Publication counts under this code: 2 in 2024 vs 1 in 2025 (latest complete years).