H04L 27/32
Carrier systems characterised by combinations of two or more of the types
Official title: Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
H04L27/32 (Carrier systems characterised by combinations of two or more of the types) appears on 8,216 US grants and 7,734 published applications in this corpus.
Search patents in H04L- Granted patents
- 8,216
- Published applications
- 7,734
- Assignees
- 1,554
- Inventors
- 10,277
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 10 | 0 |
| 1978 | 8 | 0 |
| 1979 | 4 | 0 |
| 1980 | 3 | 0 |
| 1981 | 10 | 0 |
| 1982 | 9 | 0 |
| 1983 | 3 | 0 |
| 1984 | 13 | 0 |
| 1985 | 27 | 0 |
| 1986 | 31 | 0 |
| 1987 | 28 | 0 |
| 1988 | 31 | 0 |
| 1989 | 32 | 0 |
| 1990 | 25 | 0 |
| 1991 | 24 | 0 |
| 1992 | 44 | 0 |
| 1993 | 26 | 0 |
| 1994 | 33 | 0 |
| 1995 | 58 | 0 |
| 1996 | 68 | 0 |
| 1997 | 75 | 0 |
| 1998 | 97 | 0 |
| 1999 | 90 | 0 |
| 2000 | 87 | 0 |
| 2001 | 78 | 36 |
| 2002 | 97 | 153 |
| 2003 | 105 | 170 |
| 2004 | 99 | 206 |
| 2005 | 101 | 219 |
| 2006 | 190 | 221 |
| 2007 | 185 | 297 |
| 2008 | 215 | 298 |
| 2009 | 228 | 297 |
| 2010 | 247 | 303 |
| 2011 | 299 | 321 |
| 2012 | 319 | 305 |
| 2013 | 401 | 347 |
| 2014 | 448 | 405 |
| 2015 | 519 | 479 |
| 2016 | 415 | 447 |
| 2017 | 440 | 426 |
| 2018 | 447 | 392 |
| 2019 | 468 | 457 |
| 2020 | 467 | 433 |
| 2021 | 407 | 336 |
| 2022 | 296 | 293 |
| 2023 | 295 | 285 |
| 2024 | 282 | 251 |
| 2025 | 215 | 218 |
| 2026 | 108 | 139 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Digital predistortion with hybrid basis-function-based actuator and neural network6 Oct 2026US 12,756,599 B2Analog Devices, Inc.
- Data sending method, data receiving method, and related apparatus6 Oct 2026US 12,756,614 B2Huawei Technologies Co., Ltd.
- Transmission method, reception method, transmitter, and receiver29 Sep 2026US 12,750,159 B2Panasonic Intellectual Property Corporation of America
- Apparatus for transmitting and receiving signal29 Sep 2026US 12,750,161 B2Samsung Electronics Co., Ltd.
- Demodulation of modulation constellations with probabilistic amplitude shaping29 Sep 2026US 12,750,268 B2QUALCOMM Incorporated
- Differential phase shift keying demodulator8 Oct 2026US 2026/0312694 A1BAE Systems Information and Electronic Systems Integration Inc.
- Transmitter and method for transmitting data block in wireless communication system8 Oct 2026US 2026/0312754 A1Electronics and Telecommunications Research Institute
- Probabilistic shaping for flexible spectrum integration8 Oct 2026US 2026/0312847 A1QUALCOMM Incorporated
- Approximations in distribution matching procedures8 Oct 2026US 2026/0312859 A1QUALCOMM Incorporated
- Method for communication over time-based channels8 Oct 2026US 2026/0312860 A1
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
- Lower overhead method for data transmission using ATM and SCDMA over hybrid fiber coax cable plant683US 5,991,308 ATerayon Communication Systems, Inc. · 1999
- Apparatus and method for digital data transmission using orthogonal codes473US 6,356,555 B1Terayon Communications Systems, Inc. · 2002
- Non-linear adaptive AM/AM and AM/PM pre-distortion compensation with time and temperature compensation for low power applications412US 7,215,716 B12007
- Computer-based multifunction personal communications system375US 5,452,289 AMulti-Tech Systems, Inc. · 1995