H04L 27/26035
Maintenance of orthogonality
Official title: {Maintenance of orthogonality, e.g. for signals exchanged between cells or users, or by using covering codes or sequences (using different training sequence per antenna H04B7/0684; code allocation H04J13/16)}
H04L27/26035 (Maintenance of orthogonality) appears on 404 US grants and 462 published applications in this corpus.
Search patents in H04L- Granted patents
- 404
- Published applications
- 462
- Assignees
- 111
- Inventors
- 740
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 0 |
| 2002 | 3 | 8 |
| 2003 | 0 | 4 |
| 2004 | 0 | 4 |
| 2005 | 0 | 4 |
| 2006 | 6 | 18 |
| 2007 | 5 | 7 |
| 2008 | 6 | 8 |
| 2009 | 8 | 9 |
| 2010 | 11 | 9 |
| 2011 | 13 | 8 |
| 2012 | 8 | 13 |
| 2013 | 14 | 10 |
| 2014 | 14 | 9 |
| 2015 | 20 | 30 |
| 2016 | 18 | 18 |
| 2017 | 13 | 23 |
| 2018 | 24 | 31 |
| 2019 | 33 | 38 |
| 2020 | 35 | 32 |
| 2021 | 40 | 25 |
| 2022 | 20 | 38 |
| 2023 | 28 | 32 |
| 2024 | 34 | 41 |
| 2025 | 22 | 23 |
| 2026 | 20 | 20 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Method for transmitting/receiving synchronization signal for d2d communication in wireless communication system, and apparatus therefor27 Aug 2026US 2026/0255291 A1LG Electronics Inc.
- Transmitter and transmission method20 Aug 2026US 2026/0247350 A1Ntt Docomo, Inc.
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Most cited
By later US patents
- Orthogonal superposition coding for direct-sequence communications207US 7,317,750 B2Lot 41 Acquisition Foundation, LLC · 2008
- Pilot transmission schemes for wireless multi-carrier communication systems189US 7,280,467 B2QUALCOMM Incorporated · 2007
- Pulse shaping for data transmission in an orthogonal frequency division multiplexed system172US 5,790,516 ATelefonaktiebolaget LM Ericsson · 1998
- Scattered pilot pattern and channel estimation method for MIMO-OFDM systems152US 7,248,559 B2Nortel Networks Limited · 2007
- Method and apparatus for AM compatible digital broadcasting138US 5,588,022 AXetron Corporation · 1996