H04B 7/01
Reducing phase shift
H04B7/01 (Reducing phase shift) appears on 389 US grants and 380 published applications in this corpus.
Search patents in H04B- Granted patents
- 389
- Published applications
- 380
- Assignees
- 173
- Inventors
- 805
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 6 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 2 |
| 2002 | 11 | 10 |
| 2003 | 9 | 3 |
| 2004 | 8 | 7 |
| 2005 | 4 | 6 |
| 2006 | 9 | 7 |
| 2007 | 8 | 9 |
| 2008 | 3 | 3 |
| 2009 | 4 | 8 |
| 2010 | 7 | 10 |
| 2011 | 10 | 8 |
| 2012 | 10 | 4 |
| 2013 | 12 | 5 |
| 2014 | 5 | 4 |
| 2015 | 5 | 15 |
| 2016 | 8 | 11 |
| 2017 | 14 | 14 |
| 2018 | 17 | 8 |
| 2019 | 14 | 25 |
| 2020 | 22 | 36 |
| 2021 | 25 | 30 |
| 2022 | 25 | 33 |
| 2023 | 33 | 49 |
| 2024 | 28 | 32 |
| 2025 | 36 | 27 |
| 2026 | 26 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and methods to conform transmission to regulatory restrictions in wireless communications22 Sep 2026US 12,744,562 B2Apple Inc.
- Systems and methods for managing doppler shift in cellular service signals from terrestrial user equipment at a satellite18 Aug 2026US 12,712,597 B1Space Exploration Technologies Corp.
- Spectral and spatial stitching for radio frequency sensing4 Aug 2026US 12,700,902 B2Cypress Semiconductor Corporation
- Method and device for estimating time and frequency offsets in communication system4 Aug 2026US 12,701,578 B2Samsung Electronics Co., Ltd.
- Method and apparatus for reporting doppler information of time-varying channel in wireless communication systems28 Jul 2026US 12,695,491 B2Samsung Electronics Co., Ltd.
- Method and apparatus for doppler shift compensation in communication system24 Sep 2026US 2026/0291546 A1Electronics and Telecommunications Research Institute
- Methods for identifying and correcting phase and/or amplitude errors in active antenna feed networks24 Sep 2026US 2026/0291555 A1Outdoor Wireless Networks LLC
- Signal processing apparatus and signal processing method3 Sep 2026US 2026/0261284 A1NTT, Inc.
- Sidelink Doppler Correction for Optimal Mobile Communications in 5G/6G27 Aug 2026US 2026/0254483 A1
- Methods for measuring and reporting doppler shift13 Aug 2026US 2026/0238257 A1QUALCOMM Incorporated
Most cited
By later US patents
- Directional coupling device and methods for use therewith463US 9,705,561 B2AT&T Intellectual Property I, L. P. · 2017
- Distributed antenna system and methods for use therewith454US 10,027,397 B2AT&T Intellectual Property I, L. P. · 2018
- System and methods to compensate for Doppler effects in multi-user (MU) multiple antenna systems (MAS)230US 9,312,929 B2Rearden, LLC · 2016
- Doppler-nulling traveling-wave antenna relays for high-speed vehicular communications171US 8,948,690 B2Empire Technology Development LLC · 2015
- Determination of frequency offsets in communication systems92US 5,943,606 AQUALCOMM Incorporated · 1999