H04B 7/068
Using space frequency diversity
Official title: {using space frequency diversity (space-frequency coding H04L1/0606)}
H04B7/068 (Using space frequency diversity) appears on 444 US grants and 489 published applications in this corpus.
Search patents in H04B- Granted patents
- 444
- Published applications
- 489
- Assignees
- 132
- Inventors
- 763
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 1 |
| 2003 | 0 | 2 |
| 2004 | 0 | 1 |
| 2005 | 1 | 13 |
| 2006 | 2 | 12 |
| 2007 | 5 | 13 |
| 2008 | 6 | 22 |
| 2009 | 11 | 15 |
| 2010 | 14 | 33 |
| 2011 | 18 | 36 |
| 2012 | 27 | 33 |
| 2013 | 40 | 27 |
| 2014 | 39 | 40 |
| 2015 | 37 | 42 |
| 2016 | 31 | 25 |
| 2017 | 34 | 26 |
| 2018 | 34 | 23 |
| 2019 | 26 | 27 |
| 2020 | 35 | 26 |
| 2021 | 23 | 20 |
| 2022 | 9 | 14 |
| 2023 | 16 | 9 |
| 2024 | 14 | 15 |
| 2025 | 12 | 12 |
| 2026 | 7 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Non-coherent transmission diversity communications25 Aug 2026US 12,719,637 B2QUALCOMM Incorporated
- Systems and methods for a network multiple-input and multiple-output (MIMO) scheme25 Aug 2026US 12,720,547 B2Verizon Patent and Licensing Inc.
- Terrestrial multi-antenna system for airborne wireless service4 Aug 2026US 12,700,913 B2T-Mobile Innovations LLC
- Wireless communication device and wireless communication method12 May 2026US RE50,891 E1International Semiconductor Group
- Transmit diversity across orbital angular momentum modes5 May 2026US 12,621,049 B2QUALCOMM Incorporated
- Methods, procedures, and devices to improve beam resilience in multi-antenna systems with hybrid beamforming28 May 2026US 2026/0149488 A1InterDigital Patent Holdings, Inc.
- Terrestrial multi-antenna system for airborne wireless service12 Feb 2026US 2026/0046015 A1T-Mobile Innovations LLC
- Apparatus and methods for phase tracking in space time block codes25 Sep 2025US 2025/0300783 A1
- Beam measurement method and related device14 Aug 2025US 2025/0260468 A1Huawei Technologies Co., Ltd.
- Synchronization signal block for multi-beam communication with large antenna arrays19 Jun 2025US 2025/0202646 A1Lenovo (United States) Inc.
Most cited
By later US patents
- Spatio-temporal processing for communication580US 6,144,711 ACisco Systems, Inc. · 2000
- Spatio-temporal processing for interference handling318US 6,452,981 B1Cisco Systems, Inc. · 2002
- Adaptive time diversity and spatial diversity for OFDM231US 6,985,434 B2Nortel Networks Limited · 2006
- Transmitter incorporating spatio-temporal processing164US 6,377,631 B1Cisco Systems, Inc. · 2002
- Spatio-temporal processing for communication155US 6,888,899 B2Cisco Technology, Inc. · 2005