H04L 27/2273
Associated with quadrature demodulation
Official title: {associated with quadrature demodulation, e.g. Costas loop}
H04L27/2273 (Associated with quadrature demodulation) appears on 421 US grants and 142 published applications in this corpus.
Search patents in H04L- Granted patents
- 421
- Published applications
- 142
- Assignees
- 190
- Inventors
- 663
- Latest grant
- 11 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 3 | 0 |
| 1978 | 10 | 0 |
| 1979 | 6 | 0 |
| 1980 | 3 | 0 |
| 1981 | 5 | 0 |
| 1982 | 8 | 0 |
| 1983 | 5 | 0 |
| 1984 | 9 | 0 |
| 1985 | 15 | 0 |
| 1986 | 10 | 0 |
| 1987 | 12 | 0 |
| 1988 | 1 | 0 |
| 1989 | 18 | 0 |
| 1990 | 12 | 0 |
| 1991 | 8 | 0 |
| 1992 | 7 | 0 |
| 1993 | 7 | 0 |
| 1994 | 8 | 0 |
| 1995 | 7 | 0 |
| 1996 | 10 | 0 |
| 1997 | 13 | 0 |
| 1998 | 15 | 0 |
| 1999 | 16 | 0 |
| 2000 | 13 | 0 |
| 2001 | 17 | 5 |
| 2002 | 17 | 10 |
| 2003 | 16 | 9 |
| 2004 | 19 | 8 |
| 2005 | 8 | 6 |
| 2006 | 9 | 6 |
| 2007 | 9 | 9 |
| 2008 | 3 | 7 |
| 2009 | 6 | 2 |
| 2010 | 7 | 4 |
| 2011 | 4 | 4 |
| 2012 | 4 | 4 |
| 2013 | 4 | 6 |
| 2014 | 10 | 5 |
| 2015 | 10 | 13 |
| 2016 | 9 | 3 |
| 2017 | 6 | 8 |
| 2018 | 7 | 5 |
| 2019 | 7 | 4 |
| 2020 | 10 | 9 |
| 2021 | 4 | 3 |
| 2022 | 1 | 2 |
| 2023 | 3 | 2 |
| 2024 | 2 | 4 |
| 2025 | 4 | 2 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Electronic circuit for delivering signals in quadrature11 Nov 2025US 12,470,447 B2STMicroelectronics France
- Hybrid clocking scheme for SERDES physical layer circuits12 Aug 2025US 12,388,692 B2QUALCOMM Incorporated
- Method and apparatus for transmitting PLCP frame in wireless local area network system3 Jun 2025US 12,323,283 B2Telefonaktiebolaget LM Ericsson (publ)
- Demodulation device and demodulation method25 Mar 2025US 12,261,569 B2Furuno Electric Co., Ltd.
- Digital receiver with phase offset compensation12 Mar 2024US 11,929,855 B2Widex A/S
- Phase-based demodulation in wireless power transfer systems14 May 2026US 2026/0135412 A1STMicroelectronics International N. V.
- Electronic circuit for delivering signals in quadrature5 Feb 2026US 2026/0039520 A1STMicroelectronics France
- 50 gb/s pam4 bi-directional plastic waveguide link having carrier synchronization using pi-based costas loop19 Jun 2025US 2025/0202510 A1Point2 Technology, Inc.
- Hybrid clocking scheme for serdes physical layer circuits15 May 2025US 2025/0158858 A1QUALCOMM Incorporated
- Electronic circuit for delivering signals in quadrature11 Jul 2024US 2024/0235907 A9STMicroelectronics France
Most cited
By later US patents
- Apparatus and method for efficient wireless communications in the presence of frequency error210US 5,970,105 ACleveland Medical Devices Inc. · 1999
- Self-configurable radio receiver system and method for use with signals without prior knowledge of signal defining characteristics203US 8,358,723 B1The United States of America as represented by the Administrator of the National Aeronautics and Space Administration · 2013
- Carrier recovery circuit for offset QPSK demodulators161US 4,871,975 ANEC Corporation · 1989
- Universal platform for software defined radio148US 6,823,181 B1Sony Corporation · 2004
- Equalization and decision-directed loops with trellis demodulation in high definition TV140US 6,775,334 B1Broadcom Corporation · 2004