Transmitter and method to generate a transmit signal
US-2025112649-A1 · Apr 3, 2025 · US
the transmitter oscillator frequency being identical to the receiver local oscillator frequency
the transmitter oscillator frequency being identical to the receiver local oscillator frequency · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H04B1/408 |
| Official title | the transmitter oscillator frequency being identical to the receiver local oscillator frequency |
| Display label | the transmitter oscillator frequency being identical to the receiver local oscillator frequency |
| Total patents | 45 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 8 |
| 2016 | 4 |
| 2017 | 3 |
| 2018 | 3 |
| 2019 | 4 |
| 2020 | 4 |
| 2021 | 4 |
| 2022 | 4 |
| 2023 | 4 |
| 2024 | 4 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Antenna and electronic device including same
US-12244327-B2 · Mar 4, 2025 · US
Method and device for performing ranging between radio signal devices
US-2025052889-A1 · Feb 13, 2025 · US
Sounding reference signal sending method and related apparatus
US-12149466-B2 · Nov 19, 2024 · US
Antenna and electronic device including same
US-2024214007-A1 · Jun 27, 2024 · US
Multilane transmitter
US-2024171204-A1 · May 23, 2024 · US
Antenna and electronic device including the same
US-11929768-B2 · Mar 12, 2024 · US
Communication device and method of operating a communication device
US-11757491-B2 · Sep 12, 2023 · US
Device for generating radiofrequency signals in phase quadrature
US-11757477-B2 · Sep 12, 2023 · US
Antenna and electronic device including the same
US-2023155610-A1 · May 18, 2023 · US
Antenna module and electronic device using the same
US-11557842-B2 · Jan 17, 2023 · US
Communication device
US-11451254-B2 · Sep 20, 2022 · US
Communication device and method of operating a communication device
US-2022231728-A1 · Jul 21, 2022 · US
Sounding Reference Signal Sending Method and Related Apparatus
US-2022052816-A1 · Feb 17, 2022 · US
Communication device
US-2022014218-A1 · Jan 13, 2022 · US
Antenna module and electronic device using the same
US-2021344118-A1 · Nov 4, 2021 · US
Radar apparatus
US-11112486-B2 · Sep 7, 2021 · US
Device for generating radiofrequency signals in phase quadrature
US-2021273664-A1 · Sep 2, 2021 · US
Transciever circuit
US-11095335-B2 · Aug 17, 2021 · US
Adaptation circuit for a transceiver
US-10784919-B2 · Sep 22, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H04B1/408?
- CPC H04B1/408 is the Cooperative Patent Classification code for “the transmitter oscillator frequency being identical to the receiver local oscillator frequency.”
- How many patents are filed under CPC H04B1/408 (the transmitter oscillator frequency being identical to the receiver local oscillator frequency)?
- Our database includes 45 publications tagged with this CPC code.
- Is patent activity under CPC H04B1/408 growing?
- Publication counts under this code: 4 in 2024 vs 3 in 2025 (latest complete years).