H04L 27/2334
Using filters
Official title: {using filters}
H04L27/2334 (Using filters) appears on 100 US grants and 78 published applications in this corpus.
Search patents in H04L- Granted patents
- 100
- Published applications
- 78
- Assignees
- 63
- Inventors
- 166
- Latest grant
- 15 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 1 |
| 2004 | 1 | 1 |
| 2005 | 0 | 2 |
| 2006 | 0 | 0 |
| 2007 | 1 | 2 |
| 2008 | 1 | 2 |
| 2009 | 3 | 1 |
| 2010 | 2 | 2 |
| 2011 | 1 | 2 |
| 2012 | 5 | 4 |
| 2013 | 5 | 5 |
| 2014 | 5 | 10 |
| 2015 | 7 | 3 |
| 2016 | 6 | 6 |
| 2017 | 10 | 14 |
| 2018 | 12 | 6 |
| 2019 | 10 | 3 |
| 2020 | 4 | 5 |
| 2021 | 2 | 3 |
| 2022 | 3 | 0 |
| 2023 | 1 | 4 |
| 2024 | 4 | 1 |
| 2025 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Methods and apparatus for phase change detection using a resonator15 Jul 2025US 12,362,975 B2Raytheon Company
- Multi-phase vector synthesis demodulation method and apparatus13 May 2025US 12,301,392 B2
- Cluster correlator for a demodulator16 Jul 2024US 12,040,924 B1Silicon Laboratories Inc.
- Reference signal design21 May 2024US 11,990,994 B2QUALCOMM Incorporated
- Frequency offset estimation16 Apr 2024US 11,962,443 B2Nordic Semiconductor ASA
- Multi-phase vector synthesis demodulation method and apparatus11 Apr 2024US 2024/0121142 A1
- Methods and apparatus for phase change detection using a resonator16 Nov 2023US 2023/0370313 A1Raytheon Company
- Frequency offset estimation7 Sep 2023US 2023/0283505 A1Nordic Semiconductor ASA
- Matched filter bank9 Mar 2023US 2023/0072942 A1Nordic Semiconductor ASA
- Multiplexer, radio frequency circuit, and communication device9 Mar 2023US 2023/0073105 A1Murata Manufacturing Co., Ltd.
Most cited
By later US patents
- Demodulation method and apparatus incorporating charge coupled devices115US 5,126,682 AStanford Telecommunications, Inc. · 1992
- Digital radio communication system utilizing quadrature modulated carrier waves76US 4,817,116 ANEC Corporation · 1989
- SAWC phase detection method and apparatus50US 5,276,704 AOmnipoint Data Company, Incorporated · 1994
- Digital coherent phase demodulator23US 4,246,654 ANorthrop Corporation · 1981
- Compensation for non-linear distortion in a modem receiver19US 7,173,966 B2Broadband Physics, Inc. · 2007