H04L 27/001
Modulated-carrier systems: using chaotic signals
Official title: {using chaotic signals (for secret or secure communication H04L9/001)}
H04L27/001 (Modulated-carrier systems: using chaotic signals) appears on 98 US grants and 77 published applications in this corpus.
Search patents in H04L- Granted patents
- 98
- Published applications
- 77
- Assignees
- 51
- Inventors
- 202
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 4 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 6 | 1 |
| 2002 | 1 | 4 |
| 2003 | 2 | 0 |
| 2004 | 1 | 2 |
| 2005 | 4 | 10 |
| 2006 | 4 | 2 |
| 2007 | 2 | 12 |
| 2008 | 0 | 5 |
| 2009 | 1 | 2 |
| 2010 | 8 | 2 |
| 2011 | 5 | 4 |
| 2012 | 4 | 2 |
| 2013 | 5 | 0 |
| 2014 | 1 | 2 |
| 2015 | 0 | 0 |
| 2016 | 3 | 3 |
| 2017 | 1 | 5 |
| 2018 | 3 | 1 |
| 2019 | 3 | 2 |
| 2020 | 5 | 5 |
| 2021 | 5 | 3 |
| 2022 | 5 | 4 |
| 2023 | 4 | 4 |
| 2024 | 3 | 2 |
| 2025 | 2 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Configuration framework and positioning reference signal (PRS) association mechanisms and triggering for reconfigurable intelligent surface (RIS)-aided positioning and object sensing16 Jun 2026US 12,659,915 B2QUALCOMM Incorporated
- Transceiver decoding method and system based on protograph differential chaos shift keying21 Oct 2025US 12,452,113 B1Guangdong University of Technology
- Techniques for scrambling multiple access in wireless communications3 Jun 2025US 12,323,222 B2QUALCOMM Incorporated
- Coherent detection-based high-speed chaotic secure transmission method24 Sep 2024US 12,101,392 B2Southwest Jiaotong University
- Differential chaos shift keying (DCSK) communication method and device based on three-dimensional constellation10 Sep 2024US 12,088,440 B1Guangdong University of Technology
- Techniques for scrambling multiple access in wireless communications30 May 2024US 2024/0178908 A1QUALCOMM Incorporated
- Configuration framework and positioning reference signal (prs) association mechanisms and triggering for reconfigurable intelligent surface (ris)-aided positioning and object sensing30 May 2024US 2024/0179669 A1QUALCOMM Incorporated
- Reconstruction method and device for multi-carrier differential chaos shift keying (dcsk) signal28 Dec 2023US 2023/0421419 A1Guangdong University of Technology
- Methods and apparatus for common scrambling for rank adaptation13 Apr 2023US 2023/0112772 A1QUALCOMM Incorporated
- Scrambling initialization indication for higher bands30 Mar 2023US 2023/0101584 A1QUALCOMM Incorporated
Most cited
By later US patents
- Information encoder/decoder using chaotic systems154US 5,680,462 ASandia Corporation · 1997
- Encryption system based on chaos theory120US 5,048,086 AHughes Aircraft Company · 1991
- Non-linear digital communications system95US 5,729,607 ANeosoft A.G. · 1998
- Receiver estimation engine for a chaotic system64US 6,744,893 B1Southwest Research Institute · 2004
- Nonlinear digital communications system62US 6,178,217 B1Neosoft A.G. · 2001