Front end architecture for intermittent emissions and/or coexistence specifications
US-2018367173-A1 · Dec 20, 2018 · US
using the same frequency for two directions of communication (H04B1/44 takes precedence)
using the same frequency for two directions of communication (H04B1/44 takes precedence) · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H04B1/54 |
| Official title | using the same frequency for two directions of communication (H04B1/44 takes precedence) |
| Display label | using the same frequency for two directions of communication (H04B1/44 takes precedence) |
| Total patents | 150 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 16 |
| 2017 | 19 |
| 2018 | 18 |
| 2019 | 13 |
| 2020 | 11 |
| 2021 | 11 |
| 2022 | 8 |
| 2023 | 16 |
| 2024 | 10 |
| 2025 | 20 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Can to ip internetworking
US-2018343326-A1 · Nov 29, 2018 · US
Method and device for transmitting/receiving signals related to change of tx/rx capability in fdr system
US-2018248581-A1 · Aug 30, 2018 · US
Method and apparatus for common observation receiver for transmitter and receiver
US-10057864-B2 · Aug 21, 2018 · US
Antenna and communications device
US-10044492-B2 · Aug 7, 2018 · US
A Method, System and Devices for Enabling a Network Node to Perform a Radio Operation Task in a Telecommunication Network
US-2018192357-A1 · Jul 5, 2018 · US
Front end architecture with filters having different out of band attenuation
US-10014889-B2 · Jul 3, 2018 · US
Device connected to other device by single wire and method of operating system including the devices
US-2018181513-A1 · Jun 28, 2018 · US
Terminal and method for improving terminal reception sensitivity
US-10009061-B2 · Jun 26, 2018 · US
Front end architecture with intermittent signaling mode
US-9991918-B2 · Jun 5, 2018 · US
Device and method of generating self-interference cancellation signal for full-duplex communication device
US-2018139031-A1 · May 17, 2018 · US
Front-end module
US-2018138927-A1 · May 17, 2018 · US
Method for stably operating fdr mode in wireless communication system supporting fdr mode, and device for same
US-2018123710-A1 · May 3, 2018 · US
In-band full-duplex complementary antenna
US-9941598-B2 · Apr 10, 2018 · US
Apparatus removing self-interference in environment supporting fdr method
US-2018083717-A1 · Mar 22, 2018 · US
System and method for in band full duplex communication in radio network
US-9923706-B2 · Mar 20, 2018 · US
Receive mode upon expiration of UART transmit start BIT delay
US-9892080-B2 · Feb 13, 2018 · US
Power adapter and method for upgrading the power adapter
US-2018024842-A1 · Jan 25, 2018 · US
Full-duplex communication method for multi-hop wireless network
US-2017302361-A1 · Oct 19, 2017 · US
Broadband distributed amplifier based active duplexer
US-9780943-B2 · Oct 3, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H04B1/54?
- CPC H04B1/54 is the Cooperative Patent Classification code for “using the same frequency for two directions of communication (H04B1/44 takes precedence).”
- How many patents are filed under CPC H04B1/54 (using the same frequency for two directions of communication (H04B1/44 takes precedence))?
- Our database includes 150 publications tagged with this CPC code.
- Is patent activity under CPC H04B1/54 growing?
- Publication counts under this code: 10 in 2024 vs 20 in 2025 (latest complete years).