Module for a radio receiver
US-9893924-B2 · Feb 13, 2018 · US
Compensating quadrature phase or amplitude imbalances
Compensating quadrature phase or amplitude imbalances · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H03D3/009 |
| Official title | {Compensating quadrature phase or amplitude imbalances} |
| Display label | Compensating quadrature phase or amplitude imbalances |
| Total patents | 157 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 27 |
| 2016 | 23 |
| 2017 | 9 |
| 2018 | 10 |
| 2019 | 11 |
| 2020 | 20 |
| 2021 | 15 |
| 2022 | 9 |
| 2023 | 11 |
| 2024 | 8 |
| 2025 | 14 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Systems and methods for asynchronous re-modulation with adaptive I/Q adjustment
US-9813198-B2 · Nov 7, 2017 · US
Dynamic iq mismatch correction in fmcw radar
US-2017285140-A1 · Oct 5, 2017 · US
Method and apparatus for low-complexity frequency dependent IQ imbalance compensation
US-9712369-B2 · Jul 18, 2017 · US
Apparatus for reducing an amplitude imbalance and a phase imbalance between an in-phase signal and a quadrature signal
US-2017170915-A1 · Jun 15, 2017 · US
Distortion compensation circuit
US-9660856-B2 · May 23, 2017 · US
Method and apparatus for low-complexity frequency dependent iq imbalance compensation
US-2017126465-A1 · May 4, 2017 · US
Systems and methods for I-Q imbalance calibration
US-9641126-B2 · May 2, 2017 · US
Online residual side band (rsb) calibration utilizing a frequency correction channel (fcch)
US-2017093458-A1 · Mar 30, 2017 · US
Systems and methods to dynamically calibrate and adjust gains in a direct conversion receiver
US-9608587-B2 · Mar 28, 2017 · US
Systems and methods to dynamically calibrate and adjust gains in a direct conversion receiver
US-2016380788-A1 · Dec 29, 2016 · US
Quadrature mixer arrangement
US-9520834-B2 · Dec 13, 2016 · US
Phase error compensation circuit
US-9479142-B1 · Oct 25, 2016 · US
Module for a Radio Receiver
US-2016269208-A1 · Sep 15, 2016 · US
Harmonic Reject Receiver Architecture and Mixer
US-2016261298-A1 · Sep 8, 2016 · US
System for the correction of amplitude and phase errors of in-quadrature signals, corresponding receiver and method
US-9438463-B2 · Sep 6, 2016 · US
Phase shifting mixer
US-9431961-B2 · Aug 30, 2016 · US
Coefficient estimation for digital IQ calibration
US-9431962-B2 · Aug 30, 2016 · US
Distortion compensation circuit
US-2016248617-A1 · Aug 25, 2016 · US
Apparatus and method for correcting IQ imbalance
US-9413294-B2 · Aug 9, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H03D3/009?
- CPC H03D3/009 is the Cooperative Patent Classification code for “Compensating quadrature phase or amplitude imbalances.”
- How many patents are filed under CPC H03D3/009 (Compensating quadrature phase or amplitude imbalances)?
- Our database includes 157 publications tagged with this CPC code.
- Is patent activity under CPC H03D3/009 growing?
- Publication counts under this code: 8 in 2024 vs 14 in 2025 (latest complete years).