H04L 5/1461
Suppression of signals in the return path, i.e. bidirectional control circuits
Official title: {Suppression of signals in the return path, i.e. bidirectional control circuits}
H04L5/1461 (Suppression of signals in the return path, i.e. bidirectional control circuits) appears on 729 US grants and 891 published applications in this corpus.
Search patents in H04L- Granted patents
- 729
- Published applications
- 891
- Assignees
- 272
- Inventors
- 1,438
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 4 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 1 |
| 2002 | 4 | 1 |
| 2003 | 1 | 5 |
| 2004 | 7 | 7 |
| 2005 | 3 | 5 |
| 2006 | 4 | 3 |
| 2007 | 3 | 2 |
| 2008 | 5 | 6 |
| 2009 | 3 | 6 |
| 2010 | 4 | 3 |
| 2011 | 3 | 12 |
| 2012 | 5 | 7 |
| 2013 | 11 | 16 |
| 2014 | 16 | 42 |
| 2015 | 28 | 52 |
| 2016 | 33 | 66 |
| 2017 | 59 | 101 |
| 2018 | 71 | 73 |
| 2019 | 97 | 70 |
| 2020 | 63 | 57 |
| 2021 | 46 | 62 |
| 2022 | 55 | 74 |
| 2023 | 49 | 70 |
| 2024 | 60 | 58 |
| 2025 | 49 | 60 |
| 2026 | 26 | 32 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Cross link interference handling29 Sep 2026US 12,750,201 B2Telefonaktiebolaget LM Ericsson (publ)
- Reception signal processing device and method for cancelling self-interference signal generated by transmission signal22 Sep 2026US 12,744,559 B2Korea University Research and Business Foundation
- Frequency hopping and collision handling for uplink transmission in advanced duplex systems25 Aug 2026US 12,719,649 B2Intel Corporation
- Single DCI scheduling multiple PDSCH or PUSCH for sub-band full duplex communications25 Aug 2026US 12,720,563 B2QUALCOMM Incorporated
- User equipment transmit/receive calibration in time division duplexing using assistance information18 Aug 2026US 12,712,702 B2QUALCOMM Incorporated
- Methods and apparatus for echo cancellation in transceivers1 Oct 2026US 2026/0303148 A1
- Methods For SBFD-UE Reporting On Full-Duplex Hard Constraints1 Oct 2026US 2026/0303307 A1MediaTek Singapore Pte. Ltd.
- Enhanced csi reporting for sbfd capable ue24 Sep 2026US 2026/0291706 A1QUALCOMM Incorporated
- Priority and collision handling between semi-static and/or dynamic grant uplink/downlink for full duplex user equipment17 Sep 2026US 2026/0280836 A1QUALCOMM Incorporated
- Radio frequency circuit10 Sep 2026US 2026/0269848 A1Murata Manufacturing Co., Ltd.
Most cited
By later US patents
- Method and apparatus for multiple access between transceivers in wireless communications using OFDM spread spectrum691US 5,282,222 A1994
- Repeater and methods for use therewith368US 10,142,086 B2AT&T Intellectual Property I, L. P. · 2018
- Intelligent backhaul radio with co-band zero division duplexing utilizing transmitter to receiver antenna isolation adaptation217US 8,948,235 B2CBF Networks, Inc. · 2015
- Signal transmission apparatus and interconnection structure196US 7,446,567 B2Fujitsu Limited · 2008
- Wideband simultaneous transmit and receive (STAR) subsystem183US 10,218,490 B1Northrop Grumman Systems Corporation · 2019