H04L 25/03159
Operating in the frequency domain
Official title: {operating in the frequency domain (H04L25/03165, H04L25/03178 take precedence)}
H04L25/03159 (Operating in the frequency domain) appears on 1,117 US grants and 1,142 published applications in this corpus.
Search patents in H04L- Granted patents
- 1,117
- Published applications
- 1,142
- Assignees
- 423
- Inventors
- 2,045
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1997 | 2 | 0 |
| 1998 | 7 | 0 |
| 1999 | 4 | 0 |
| 2000 | 6 | 0 |
| 2001 | 14 | 6 |
| 2002 | 7 | 18 |
| 2003 | 12 | 31 |
| 2004 | 13 | 36 |
| 2005 | 22 | 36 |
| 2006 | 25 | 41 |
| 2007 | 29 | 65 |
| 2008 | 34 | 68 |
| 2009 | 37 | 77 |
| 2010 | 63 | 90 |
| 2011 | 69 | 71 |
| 2012 | 90 | 72 |
| 2013 | 101 | 56 |
| 2014 | 90 | 60 |
| 2015 | 83 | 49 |
| 2016 | 49 | 43 |
| 2017 | 51 | 41 |
| 2018 | 50 | 50 |
| 2019 | 58 | 47 |
| 2020 | 43 | 41 |
| 2021 | 48 | 36 |
| 2022 | 30 | 29 |
| 2023 | 25 | 24 |
| 2024 | 27 | 22 |
| 2025 | 20 | 17 |
| 2026 | 8 | 16 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Passive equalizer with front-end level-shifter (FELS)8 Sep 2026US 12,732,400 B2NVIDIA Corporation
- Selective filtering to reduce interferences in Wi-Fi communications11 Aug 2026US 12,706,617 B2Hewlett Packard Enterprise Development LP
- Semiconductor integrated circuit, receiving device, and memory system9 Jun 2026US 12,651,618 B2Kioxia Corporation
- Phase noise determining method and related apparatus12 May 2026US 12,627,450 B2Huawei Technologies Co., Ltd.
- Systems and methods for enhancing efficient uplink MIMO performance and implementation for O-RAN-based radio access networks12 May 2026US 12,627,529 B2Mavenir Systems, Inc.
- Decimation factor based on transmit antenna correlation27 Aug 2026US 2026/0254542 A1QUALCOMM Incorporated
- Apparatus and method for equalizer training in a coherent receiver27 Aug 2026US 2026/0254680 A1Nokia Solutions and Networks Oy
- Communication Method and Apparatus27 Aug 2026US 2026/0254687 A1Huawei Technologies Co., Ltd.
- Methods for generation and equalization of waveform that time multiplexes reference signal and data6 Aug 2026US 2026/0230357 A1Wisig Networks Private Limited
- Hybrid receiver with learnable decider23 Jul 2026US 2026/0213876 A1Huawei Technologies Co., Ltd.
Most cited
By later US patents
- Method and apparatus for utilizing channel state information in a wireless communication system316US 6,771,706 B2QUALCOMM Incorporated · 2004
- Method and apparatus for processing data for transmission in a multi-channel communication system using selective channel inversion243US 7,072,413 B2QUALCOMM Incorporated · 2006
- Orthogonal superposition coding for direct-sequence communications207US 7,317,750 B2Lot 41 Acquisition Foundation, LLC · 2008
- Method and system in a transceiver for controlling a multiple-input, multiple-output communications channel175US 6,859,503 B2Motorola, Inc. · 2005
- Method and apparatus for real-time adaptive interference cancellation in dynamic environments170US 5,612,978 AMotorola, Inc. · 1997