Method for acquiring user information and electronic device therefor
US-2020178045-A1 · Jun 4, 2020 · US
Synchronisation circuits
Synchronisation circuits · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H04M2201/22 |
| Official title | Synchronisation circuits |
| Display label | Synchronisation circuits |
| Total patents | 135 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 10 |
| 2016 | 12 |
| 2017 | 14 |
| 2018 | 7 |
| 2019 | 16 |
| 2020 | 17 |
| 2021 | 16 |
| 2022 | 10 |
| 2023 | 15 |
| 2024 | 9 |
| 2025 | 8 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Communication device and methods for use by hearing impaired
US-2019373109-A1 · Dec 5, 2019 · US
Method and apparatus for providing contact information
US-10491730-B2 · Nov 26, 2019 · US
System and method for integrated cx-ax contact center testing
US-2019356774-A1 · Nov 21, 2019 · US
Transmission system, information processing apparatus, computer program product, and method of information processing
US-10469550-B2 · Nov 5, 2019 · US
Communication device and methods for use by hearing impaired
US-2019238679-A1 · Aug 1, 2019 · US
System and method for developing and utilizing a contactability profile
US-2019220789-A1 · Jul 18, 2019 · US
System to deploy a disaster-proof geographically-distributed call center
US-10348893-B2 · Jul 9, 2019 · US
System and method for integrated CX-AX contact center testing
US-10326880-B2 · Jun 18, 2019 · US
Communication device and methods for use by hearing impaired
US-10298753-B1 · May 21, 2019 · US
Audio mixer
US-10291668-B2 · May 14, 2019 · US
Method and apparatus of processing user data of a multi-speaker conference call
US-10257361-B1 · Apr 9, 2019 · US
System and method for developing and utilizing a contactability profile
US-10248917-B1 · Apr 2, 2019 · US
Call processing method and device
US-2019097718-A1 · Mar 28, 2019 · US
Presentation of communications
US-2019096423-A1 · Mar 28, 2019 · US
Presentation of communications
US-10224057-B1 · Mar 5, 2019 · US
System and method for integrated cx-ax contact center testing
US-2019007550-A1 · Jan 3, 2019 · US
System and method for automatic call synchronization
US-10057737-B2 · Aug 21, 2018 · US
Communication device and methods for use by hearing impaired
US-10051120-B2 · Aug 14, 2018 · US
Call collision processing method for terminal device, and terminal device
US-10015314-B2 · Jul 3, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H04M2201/22?
- CPC H04M2201/22 is the Cooperative Patent Classification code for “Synchronisation circuits.”
- How many patents are filed under CPC H04M2201/22 (Synchronisation circuits)?
- Our database includes 135 publications tagged with this CPC code.
- Is patent activity under CPC H04M2201/22 growing?
- Publication counts under this code: 9 in 2024 vs 8 in 2025 (latest complete years).