H04L 27/233
Using non-coherent demodulation
Official title: using non-coherent demodulation
H04L27/233 (Using non-coherent demodulation) appears on 1,140 US grants and 539 published applications in this corpus.
Search patents in H04L- Granted patents
- 1,140
- Published applications
- 539
- Assignees
- 435
- Inventors
- 1,769
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 13 | 0 |
| 1977 | 10 | 0 |
| 1978 | 4 | 0 |
| 1979 | 4 | 0 |
| 1980 | 5 | 0 |
| 1981 | 1 | 0 |
| 1982 | 8 | 0 |
| 1983 | 8 | 0 |
| 1984 | 7 | 0 |
| 1985 | 7 | 0 |
| 1986 | 14 | 0 |
| 1987 | 14 | 0 |
| 1988 | 6 | 0 |
| 1989 | 25 | 0 |
| 1990 | 14 | 0 |
| 1991 | 19 | 0 |
| 1992 | 30 | 0 |
| 1993 | 21 | 0 |
| 1994 | 28 | 0 |
| 1995 | 32 | 0 |
| 1996 | 51 | 0 |
| 1997 | 46 | 0 |
| 1998 | 57 | 0 |
| 1999 | 49 | 0 |
| 2000 | 47 | 0 |
| 2001 | 36 | 10 |
| 2002 | 39 | 39 |
| 2003 | 30 | 22 |
| 2004 | 32 | 27 |
| 2005 | 16 | 23 |
| 2006 | 27 | 26 |
| 2007 | 14 | 29 |
| 2008 | 18 | 21 |
| 2009 | 33 | 18 |
| 2010 | 25 | 22 |
| 2011 | 22 | 25 |
| 2012 | 28 | 29 |
| 2013 | 33 | 25 |
| 2014 | 26 | 24 |
| 2015 | 34 | 20 |
| 2016 | 23 | 24 |
| 2017 | 32 | 35 |
| 2018 | 40 | 30 |
| 2019 | 33 | 16 |
| 2020 | 16 | 18 |
| 2021 | 11 | 19 |
| 2022 | 19 | 12 |
| 2023 | 10 | 9 |
| 2024 | 15 | 6 |
| 2025 | 7 | 8 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Demodulation14 Jul 2026US 12,683,842 B2Nordic Semiconductor ASA
- Data carrier apparatus, communication system, and replaceable unit12 Aug 2025US 12,388,693 B2Canon Kabushiki Kaisha
- Methods and apparatus for phase change detection using a resonator15 Jul 2025US 12,362,975 B2Raytheon Company
- Method and apparatus for transmitting PLCP frame in wireless local area network system3 Jun 2025US 12,323,283 B2Telefonaktiebolaget LM Ericsson (publ)
- Multi-phase vector synthesis demodulation method and apparatus13 May 2025US 12,301,392 B2
- Demodulation29 Jan 2026US 2026/0032030 A1Nordic Semiconductor ASA
- Demodulation method of dpsk signals, demodulation system, and communication device thereof1 Jan 2026US 2026/0005903 A1Jadard Technology Inc.
- Method for embedding message waveforms within conventionally modulated signals23 Oct 2025US 2025/0330351 A1
- System for embedding message waveforms within conventionally modulated signals23 Oct 2025US 2025/0330352 A1
- System and method for generating a composite signal including an auxiliary signal interposed between periods of a modulated signal23 Oct 2025US 2025/0330353 A1
Most cited
By later US patents
- Code division multiple access (CDMA) communication system333US 6,157,619 AInterDigital Technology Corporation · 2000
- Dual-mode digital FM communication system247US 5,757,858 AQUALCOMM Incorporated · 1998
- Code division multiple access (CDMA) communication system172US 5,799,010 AInterDigital Technology Corporation · 1998
- Universal platform for software defined radio148US 6,823,181 B1Sony Corporation · 2004
- Median weighted tracking for spread-spectrum communications146US 6,983,009 B2InterDigital Technology Corporation · 2006