Wi-fi/Bluetooth antenna disconnect detection
US-12562779-B2 · Feb 24, 2026 · US
Testing attenuation in combination with at least one of group delay and phase shift
Testing attenuation in combination with at least one of group delay and phase shift · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H04B3/466 |
| Official title | Testing attenuation in combination with at least one of group delay and phase shift |
| Display label | Testing attenuation in combination with at least one of group delay and phase shift |
| 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 | 6 |
| 2016 | 11 |
| 2017 | 7 |
| 2018 | 6 |
| 2019 | 5 |
| 2020 | 3 |
| 2021 | 4 |
| 2022 | 1 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Wi-fi/bluetooth antenna disconnect detection
US-2025247128-A1 · Jul 31, 2025 · US
Method and system for estimating crosstalk between electrical transmission lines
US-11411606-B2 · Aug 9, 2022 · US
Decision feedback equalization correction of eye scope measurements
US-11177894-B2 · Nov 16, 2021 · US
Decision feedback equalization correction of eye scope measurements
US-2021126725-A1 · Apr 29, 2021 · US
Dynamic digital communication system control
US-10938427-B2 · Mar 2, 2021 · US
Decision feedback equalization correction of eye scope measurements
US-10887030-B2 · Jan 5, 2021 · US
Decision feedback equalization correction of eye scope measurements
US-2020366392-A1 · Nov 19, 2020 · US
Decision feedback equalization correction of eye scope measurements
US-10673548-B2 · Jun 2, 2020 · US
Dynamic digital communication system control
US-2020021322-A1 · Jan 16, 2020 · US
Dynamic digital communication system control
US-10404300-B2 · Sep 3, 2019 · US
Methods for detecting double talk
US-10388298-B1 · Aug 20, 2019 · US
Decision feedback equalization correction of eye scope measurements
US-2019181970-A1 · Jun 13, 2019 · US
Method and system for estimating crosstalk between electrical transmission lines
US-2019097682-A1 · Mar 28, 2019 · US
Receiver and method for processing a signal coming from a transmission channel
US-10211884-B2 · Feb 19, 2019 · US
Dynamic digital communication system control
US-2018278282-A1 · Sep 27, 2018 · US
Attenuator and signal generator for stepwise attenuating a radio frequency signal
US-9991933-B2 · Jun 5, 2018 · US
Method for processing a signal coming from a transmission channel
US-9985688-B2 · May 29, 2018 · US
Systems and methods for measuring characteristics of a welding cable
US-9969024-B2 · May 15, 2018 · US
Terahertz injection-locked radiator
US-9923599-B1 · Mar 20, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H04B3/466?
- CPC H04B3/466 is the Cooperative Patent Classification code for “Testing attenuation in combination with at least one of group delay and phase shift.”
- How many patents are filed under CPC H04B3/466 (Testing attenuation in combination with at least one of group delay and phase shift)?
- Our database includes 45 publications tagged with this CPC code.
- Is patent activity under CPC H04B3/466 growing?
- Publication counts under this code: 1 in 2022 vs 1 in 2025 (latest complete years).