H04L 27/364
Arrangements for overcoming imperfections in the modulator
Official title: {Arrangements for overcoming imperfections in the modulator, e.g. quadrature error or unbalanced I and Q levels}
H04L27/364 (Arrangements for overcoming imperfections in the modulator) appears on 520 US grants and 518 published applications in this corpus.
Search patents in H04L- Granted patents
- 520
- Published applications
- 518
- Assignees
- 242
- Inventors
- 1,103
- Latest grant
- 8 Sep 2026
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| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
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| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 0 | 0 |
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| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 5 | 4 |
| 2003 | 7 | 9 |
| 2004 | 5 | 17 |
| 2005 | 3 | 11 |
| 2006 | 9 | 14 |
| 2007 | 14 | 26 |
| 2008 | 9 | 28 |
| 2009 | 14 | 29 |
| 2010 | 34 | 17 |
| 2011 | 27 | 14 |
| 2012 | 22 | 18 |
| 2013 | 24 | 22 |
| 2014 | 25 | 32 |
| 2015 | 39 | 28 |
| 2016 | 28 | 23 |
| 2017 | 23 | 19 |
| 2018 | 21 | 15 |
| 2019 | 18 | 26 |
| 2020 | 27 | 40 |
| 2021 | 40 | 26 |
| 2022 | 39 | 32 |
| 2023 | 23 | 22 |
| 2024 | 27 | 22 |
| 2025 | 15 | 15 |
| 2026 | 7 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Calibration of vector modulators using a scalar detector110US 4,717,894 AHewlett-Packard Company · 1988
- Enhanced wireless packet data communication system, method, and apparatus applicable to both wide area networks and local area networks83US 7,477,694 B2M&FC Holding, LLC · 2009
- Quadrature amplitude modulator with distortion compensation63US 5,293,406 ANippon Telegraph and Telephone Corporation · 1994
- System and method for I/Q imbalance compensation63US 7,251,291 B1Nortel Networks Limited · 2007
- I/Q distortion compensation for the reception of OFDM signals60US 7,020,226 B1Nortel Networks Limited · 2006