H04L 27/2672
Frequency domain
Official title: {Frequency domain}
H04L27/2672 (Frequency domain) appears on 275 US grants and 283 published applications in this corpus.
Search patents in H04L- Granted patents
- 275
- Published applications
- 283
- Assignees
- 133
- Inventors
- 588
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 2 | 4 |
| 2004 | 3 | 1 |
| 2005 | 0 | 2 |
| 2006 | 2 | 3 |
| 2007 | 3 | 11 |
| 2008 | 2 | 2 |
| 2009 | 2 | 10 |
| 2010 | 6 | 8 |
| 2011 | 12 | 14 |
| 2012 | 11 | 19 |
| 2013 | 25 | 21 |
| 2014 | 20 | 18 |
| 2015 | 31 | 24 |
| 2016 | 21 | 21 |
| 2017 | 15 | 21 |
| 2018 | 20 | 16 |
| 2019 | 19 | 20 |
| 2020 | 19 | 18 |
| 2021 | 21 | 11 |
| 2022 | 9 | 9 |
| 2023 | 12 | 13 |
| 2024 | 6 | 7 |
| 2025 | 10 | 9 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and methods for recovering collided packets in a wireless network and block-based error correction18 Aug 2026US 12,713,470 B2The Florida State University Research Foundation, Inc.
- Systems and methods for fast acquisition of a primary synchronization signal for 5G new radio network10 Mar 2026US 12,574,877 B2PCTEL, Inc.
- Electronic device7 Oct 2025US 12,438,763 B2Ntt Docomo, Inc.
- Carrier phase tracking method and device for orthogonal frequency division multiplexing multi-carrier system30 Sep 2025US 12,432,106 B2Datang Mobile Communications Equipment Co., Ltd.
- Data transmission processing method and apparatus, communication device, and storage medium23 Sep 2025US 12,425,144 B2Vivo Mobile Communication Co., Ltd.
- Band gap mitigation during component carrier sensing8 Oct 2026US 2026/0312857 A1Intel Corporation
- Electronic device and method for receiving signals in wireless communication system30 Oct 2025US 2025/0337629 A1Samsung Electronics Co., Ltd.
- Techniques for Estimation and Compensation of Frequency Offset in OFDM-based Communication System28 Aug 2025US 2025/0274329 A1GCT Semiconductor, Inc.
- Programmable network slicing framework for cellular systems28 Aug 2025US 2025/0274918 A1Nokia Solutions and Networks Oy
- Cyclic partitioning methods and procedures for phase noise compensation in cp-ofdm29 May 2025US 2025/0175371 A1InterDigital Patent Holdings, Inc.
Most cited
By later US patents
- Method and system for down-converting electromagnetic signals185US 6,061,551 AParkerVision, Inc. · 2000
- System access and synchronization methods for MIMO OFDM communications systems and physical layer packet and preamble design176US 7,548,506 B2Nortel Networks Limited · 2009
- Method, apparatus, and system for time synchronization152US 8,432,851 B2Huawei Technologies Co., Ltd. · 2013
- Method and system for down-converting electromagnetic signals by sampling and integrating over apertures113US 6,266,518 B1ParkerVision, Inc. · 2001
- Method and circuit for down-converting a signal using a complementary FET structure for improved dynamic range102US 6,687,493 B1ParkerVision, Inc. · 2004