H04B 1/52
Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction
Official title: Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
H04B1/52 (Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction) appears on 2,207 US grants and 2,351 published applications in this corpus.
Search patents in H04B- Granted patents
- 2,207
- Published applications
- 2,351
- Assignees
- 664
- Inventors
- 3,930
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 4 | 0 |
| 1991 | 1 | 0 |
| 1992 | 4 | 0 |
| 1993 | 4 | 0 |
| 1994 | 4 | 0 |
| 1995 | 6 | 0 |
| 1996 | 10 | 0 |
| 1997 | 10 | 0 |
| 1998 | 10 | 0 |
| 1999 | 11 | 0 |
| 2000 | 19 | 0 |
| 2001 | 18 | 5 |
| 2002 | 15 | 26 |
| 2003 | 18 | 31 |
| 2004 | 23 | 44 |
| 2005 | 24 | 32 |
| 2006 | 47 | 45 |
| 2007 | 17 | 54 |
| 2008 | 28 | 57 |
| 2009 | 20 | 47 |
| 2010 | 43 | 59 |
| 2011 | 62 | 80 |
| 2012 | 71 | 79 |
| 2013 | 67 | 113 |
| 2014 | 115 | 139 |
| 2015 | 134 | 144 |
| 2016 | 144 | 174 |
| 2017 | 156 | 157 |
| 2018 | 175 | 166 |
| 2019 | 179 | 179 |
| 2020 | 184 | 141 |
| 2021 | 126 | 118 |
| 2022 | 114 | 97 |
| 2023 | 85 | 124 |
| 2024 | 78 | 106 |
| 2025 | 91 | 80 |
| 2026 | 67 | 54 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Methods and apparatuses for determining whether an anomalous event occurred locally at a first entity6 Oct 2026US 12,756,413 B2Telefonaktiebolaget LM Ericsson (publ)
- Coexistence management for radio frequency communication systems29 Sep 2026US 12,750,083 B2Skyworks Solutions, Inc.
- Systems and methods for adaptive selection of estimation taps29 Sep 2026US 12,750,084 B2Samsung Electronics Co., Ltd.
- 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
- Phase shift of signals for RFI mitigation22 Sep 2026US 12,744,605 B2Intel Corporation
- Device and method for performing communication in licenced band and unlicenced band1 Oct 2026US 2026/0303144 A1Thinkware Corporation
- Symbol-Based Control of Passive Intermodulation Cancellation in a Network Node24 Sep 2026US 2026/0291541 A1
- Full-duplex beam-nulling isolation beween transmit and receive arrays24 Sep 2026US 2026/0291600 A1ViaSat, Inc.
- Circuit and method for improving sensing accuracy17 Sep 2026US 2026/0280540 A1Realtek Semiconductor Corp.
- Replica signal generator for simultaneous bidirectional data communication link20 Aug 2026US 2026/0246490 A1QUALCOMM Incorporated
Most cited
By later US patents
- Waste energy control and management in power amplifier368US 5,568,088 AEricsson GE Mobile Communications Inc. · 1996
- Active cancellation of transmitter leakage in a wireless transceiver363US 8,175,535 B2Telefonaktiebolaget LM Ericsson (publ) · 2012
- Adaptive method and apparatus for eliminating interference between radio transceivers251US 5,630,223 AAmerican Nucleonics Corporation · 1997
- Self-cancelling full-duplex RF communication system243US 5,691,978 ASignal Science, Inc. · 1997
- System and method for providing high speed wireless media access241US 7,061,877 B1Georgia Tech Reseach Corporation · 2006