H04L 27/066
Carrier recovery circuits
Official title: {Carrier recovery circuits (H04L27/2271 takes precedence)}
H04L27/066 (Carrier recovery circuits) appears on 216 US grants and 136 published applications in this corpus.
Search patents in H04L- Granted patents
- 216
- Published applications
- 136
- Assignees
- 106
- Inventors
- 321
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 4 | 0 |
| 1982 | 5 | 0 |
| 1983 | 3 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 11 | 0 |
| 1999 | 4 | 0 |
| 2000 | 5 | 0 |
| 2001 | 11 | 3 |
| 2002 | 15 | 8 |
| 2003 | 6 | 8 |
| 2004 | 9 | 15 |
| 2005 | 10 | 13 |
| 2006 | 8 | 7 |
| 2007 | 9 | 5 |
| 2008 | 7 | 8 |
| 2009 | 9 | 9 |
| 2010 | 8 | 6 |
| 2011 | 6 | 3 |
| 2012 | 11 | 6 |
| 2013 | 6 | 4 |
| 2014 | 3 | 7 |
| 2015 | 11 | 6 |
| 2016 | 6 | 6 |
| 2017 | 6 | 2 |
| 2018 | 3 | 6 |
| 2019 | 5 | 6 |
| 2020 | 3 | 0 |
| 2021 | 5 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 1 |
| 2024 | 0 | 2 |
| 2025 | 2 | 1 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Dedicated slots for ambient devices12 May 2026US 12,628,137 B2QUALCOMM Incorporated
- Multi-carrier on-off keying communications11 Nov 2025US 12,470,445 B2QUALCOMM Incorporated
- Frequency difference for ambient device decoding8 Apr 2025US 12,273,225 B2QUALCOMM Incorporated
- Self-calibrating on-off keying based digital isolator6 Jun 2023US 11,671,138 B2Texas Instruments Incorporated
- Wireless communications system, base station, and terminal21 Dec 2021US 11,206,647 B2Fujitsu Connected Technologies Limited
- Extended symbol decoding1 Oct 2026US 2026/0303419 A1Microchip Technology Incorporated
- Receiver circuit12 Mar 2026US 2026/0074933 A1NXP USA, Inc.
- Digital calibration device for rf system19 Feb 2026US 2026/0051963 A1NXP B. V.
- Multi-carrier on-off keying communications1 May 2025US 2025/0141723 A1QUALCOMM Incorporated
- Frequency difference for ambient device decoding21 Nov 2024US 2024/0388489 A1QUALCOMM Incorporated
Most cited
By later US patents
- Method and apparatus for optimization of wireless communications231US 5,822,373 APittway Corporation · 1998
- Digital communication system for transmitting and receiving robustly encoded data144US 6,996,133 B2Zenith Electronics Corporation · 2006
- Phase error detecting method and phase tracking loop circuit142US 5,796,786 ASamsung Electronics Co., Ltd. · 1998
- Equalization and decision-directed loops with trellis demodulation in high definition TV140US 6,775,334 B1Broadcom Corporation · 2004
- Method and apparatus for detecting co-channel interference and selectively filtering the interference when detected120US 6,421,077 B1Motorola, Inc. · 2002