H04L 27/2676
Blind, i.e. without using known symbols
Official title: {Blind, i.e. without using known symbols}
H04L27/2676 (Blind, i.e. without using known symbols) appears on 698 US grants and 685 published applications in this corpus.
Search patents in H04L- Granted patents
- 698
- Published applications
- 685
- Assignees
- 317
- Inventors
- 1,505
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 10 | 0 |
| 2000 | 13 | 0 |
| 2001 | 12 | 4 |
| 2002 | 7 | 18 |
| 2003 | 15 | 15 |
| 2004 | 11 | 24 |
| 2005 | 21 | 36 |
| 2006 | 21 | 25 |
| 2007 | 23 | 48 |
| 2008 | 20 | 31 |
| 2009 | 33 | 47 |
| 2010 | 53 | 38 |
| 2011 | 42 | 21 |
| 2012 | 36 | 25 |
| 2013 | 44 | 17 |
| 2014 | 31 | 16 |
| 2015 | 28 | 18 |
| 2016 | 28 | 21 |
| 2017 | 23 | 30 |
| 2018 | 14 | 23 |
| 2019 | 27 | 40 |
| 2020 | 43 | 44 |
| 2021 | 43 | 29 |
| 2022 | 30 | 21 |
| 2023 | 19 | 18 |
| 2024 | 16 | 9 |
| 2025 | 15 | 29 |
| 2026 | 5 | 38 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Methods, apparatus, and systems for delay spread measurement, reporting, and cyclic prefix determination11 Aug 2026US 12,706,653 B2InterDigital Patent Holdings, Inc.
- Method for transmitting information in communication system, base station and user equipment14 Jul 2026US 12,683,849 B2Spreadtrum Communications (Shanghai) Co., Ltd.
- Waveform designs for half-duplex monostatic sensing19 May 2026US 12,634,104 B2QUALCOMM Incorporated
- Method for beam switching in mmWave systems5 May 2026US 12,621,035 B2Apple Inc.
- Electronic devices with frequency scan acceleration7 Apr 2026US 12,598,541 B2Apple Inc.
- Sensing signal transmission method, electronic device, and storage medium8 Oct 2026US 2026/0312743 A1Zte Corporation
- Methods for cyclic prefix handling for low-power receivers8 Oct 2026US 2026/0312858 A1
- Number of supported ul muting patterns per pusch type and per slot1 Oct 2026US 2026/0303431 A1QUALCOMM Incorporated
- Artificial intelligence-driven coexistence management system for multi-protocol wireless communications1 Oct 2026US 2026/0304145 A1Silicon Laboratories Inc.
- Receiver for background adaptation to plurality of parameters, method of operating receiver, and system including receiver24 Sep 2026US 2026/0291789 A1Gwangju Institute of Science and Technology
Most cited
By later US patents
- Method and apparatus for correcting for clock and carrier frequency offset, and phase jitter in mulicarrier modems233US 5,206,886 ATelebit Corporation · 1993
- Method and apparatus for correcting for clock and carrier frequency offset, and phase jitter in multicarrier modems197US 5,228,062 ATelebit Corporation · 1993
- Intelligent backhaul radio174US 8,238,318 B1CBF Networks, Inc. · 2012
- OFDM synchronization demodulation circuit158US 5,608,764 AKabushiki Kaisha Toshiba · 1997
- Method, apparatus, and system for time synchronization152US 8,432,851 B2Huawei Technologies Co., Ltd. · 2013