H04L 25/022
Of frequency response
Official title: {of frequency response}
H04L25/022 (Of frequency response) appears on 1,215 US grants and 1,371 published applications in this corpus.
Search patents in H04L- Granted patents
- 1,215
- Published applications
- 1,371
- Assignees
- 424
- Inventors
- 2,473
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 1 |
| 2002 | 2 | 10 |
| 2003 | 3 | 21 |
| 2004 | 6 | 26 |
| 2005 | 10 | 52 |
| 2006 | 15 | 45 |
| 2007 | 28 | 65 |
| 2008 | 36 | 63 |
| 2009 | 38 | 89 |
| 2010 | 55 | 103 |
| 2011 | 71 | 86 |
| 2012 | 89 | 85 |
| 2013 | 121 | 74 |
| 2014 | 133 | 63 |
| 2015 | 101 | 76 |
| 2016 | 69 | 45 |
| 2017 | 53 | 57 |
| 2018 | 47 | 56 |
| 2019 | 50 | 46 |
| 2020 | 55 | 47 |
| 2021 | 44 | 48 |
| 2022 | 43 | 52 |
| 2023 | 37 | 43 |
| 2024 | 38 | 46 |
| 2025 | 47 | 32 |
| 2026 | 17 | 40 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and method for improved WLAN sensing measurement report22 Sep 2026US 12,742,875 B2Mediatek Inc.
- Method and device for channel prediction in wireless communication systems25 Aug 2026US 12,719,720 B2NEC Corporation
- Data-aided SSB signal processing28 Jul 2026US 12,696,206 B2MediaTek Singapore Pte. Ltd.
- Aliasing removal for wireless channel captures30 Jun 2026US 12,671,610 B2QUALCOMM Incorporated
- Radio frequency sensing16 Jun 2026US 12,659,193 B2QUALCOMM Incorporated
- Method, apparatus, and system for wireless sensing based on multiple groups of wireless devices8 Oct 2026US 2026/0312840 A1
- Approaches for Spatial Beamforming1 Oct 2026US 2026/0303163 A1
- Smooshed bmocz zero-constellation for cfo estimation without channel coding1 Oct 2026US 2026/0303412 A1University of South Carolina
- Communication device and method for performing sensing24 Sep 2026US 2026/0291780 A1Realtek Semiconductor Corp.
- Method for Channel Correction and Target Speed Estimation for High Accuracy Distance Measurements10 Sep 2026US 2026/0266947 A1Silicon Laboratories Inc.
Most cited
By later US patents
- Channels estimation for multiple input—multiple output, orthogonal frequency division multiplexing (OFDM) system227US 6,850,481 B2Nortel Networks Limited · 2005
- Pilot-aided channel estimation for OFDM in wireless systems210US 6,654,429 B1AT&T Corp. · 2003
- Orthogonal superposition coding for direct-sequence communications207US 7,317,750 B2Lot 41 Acquisition Foundation, LLC · 2008
- System and method for proactive repeat transmission of data over an unreliable transmission medium202US 8,238,247 B2Wi-LAN, Inc. · 2012
- Method and device for multi-user channel estimation172US 6,765,969 B1Motorola, Inc. · 2004