H04L 27/2627
Modulators
Official title: {Modulators}
H04L27/2627 (Modulators) appears on 4,195 US grants and 4,726 published applications in this corpus.
Search patents in H04L- Granted patents
- 4,195
- Published applications
- 4,726
- Assignees
- 731
- Inventors
- 4,477
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 11 | 0 |
| 1997 | 6 | 0 |
| 1998 | 7 | 0 |
| 1999 | 8 | 0 |
| 2000 | 9 | 0 |
| 2001 | 11 | 7 |
| 2002 | 19 | 36 |
| 2003 | 24 | 23 |
| 2004 | 25 | 37 |
| 2005 | 15 | 50 |
| 2006 | 38 | 50 |
| 2007 | 32 | 120 |
| 2008 | 55 | 109 |
| 2009 | 65 | 112 |
| 2010 | 63 | 118 |
| 2011 | 97 | 139 |
| 2012 | 124 | 155 |
| 2013 | 147 | 190 |
| 2014 | 206 | 231 |
| 2015 | 287 | 327 |
| 2016 | 272 | 323 |
| 2017 | 332 | 339 |
| 2018 | 330 | 323 |
| 2019 | 324 | 352 |
| 2020 | 342 | 341 |
| 2021 | 342 | 254 |
| 2022 | 230 | 216 |
| 2023 | 246 | 233 |
| 2024 | 225 | 246 |
| 2025 | 184 | 231 |
| 2026 | 107 | 164 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H04L 27/2634Inverse fast fourier transform [ifft] or inverse discrete fourier transform [idft] modulators2,008
- H04L 27/2628Inverse fourier transform modulators699
- H04L 27/264Pulse-shaped multi-carrier, i.e. not using rectangular window295
- H04L 27/2637With direct modulation of individual subcarriers258
- H04L 27/2639Modulators using other transforms180
- H04L 27/2643Using symbol repetition56
- H04L 27/2644With oversampling55
- H04L 27/2642Wavelet transform modulators21
Recent patents
- Signal transmission method and signal reception method of heterogeneous systems sharing frequency band6 Oct 2026US 12,756,613 B2Electronics and Telecommunications Research Institute
- Data sending method, data receiving method, and related apparatus6 Oct 2026US 12,756,614 B2Huawei Technologies Co., Ltd.
- Method and apparatus for synchronization for Vehicle-to-X communication6 Oct 2026US 12,757,134 B2Innovative Technology Lab Co., Ltd.
- Synchronization signal block groups associated with multiple waveforms for a wireless communication network supporting a high frequency range29 Sep 2026US 12,750,800 B2Lenovo (Singapore) Pte. Ltd.
- Resilient machine-to-machine networks8 Sep 2026US 12,732,407 B2
- Transmitter and method for transmitting data block in wireless communication system8 Oct 2026US 2026/0312754 A1Electronics and Telecommunications Research Institute
- Radio frequency band switching in a power management integrated circuit8 Oct 2026US 2026/0312854 A1Qorvo US, Inc.
- Channel estimation based on time domain signals1 Oct 2026US 2026/0303271 A1QUALCOMM Incorporated
- Number of supported ul muting patterns per pusch type and per slot1 Oct 2026US 2026/0303431 A1QUALCOMM Incorporated
- High-speed serial interface1 Oct 2026US 2026/0303435 A1MaxLinear, Inc.
Most cited
By later US patents
- Method and apparatus for multiple access between transceivers in wireless communications using OFDM spread spectrum691US 5,282,222 A1994
- Multicarrier sub-layer for direct sequence channel and multiple-access coding463US 7,430,257 B1Lot 41 Acquisition Foundation, LLC · 2008
- Frequency-shifted feedback cavity used as a phased array antenna controller and carrier interference multiple access spread-spectrum transmitter445US 5,955,992 A1999
- Transport of payload information and control messages on multiple orthogonal carriers spread throughout substantially all of a frequency bandwith320US 6,275,990 B1ADC Telecommunications, Inc. · 2001
- Intelligent backhaul radio and antenna system311US 8,467,363 B2CBF Networks, Inc. · 2013