H04L 27/345
Modifications of the signal space to allow the transmission of additional information
Official title: {Modifications of the signal space to allow the transmission of additional information}
H04L27/345 (Modifications of the signal space to allow the transmission of additional information) appears on 549 US grants and 496 published applications in this corpus.
Search patents in H04L- Granted patents
- 549
- Published applications
- 496
- Assignees
- 206
- Inventors
- 918
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 5 | 0 |
| 1986 | 4 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 4 | 0 |
| 1991 | 3 | 0 |
| 1992 | 5 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 7 | 0 |
| 1996 | 10 | 0 |
| 1997 | 4 | 0 |
| 1998 | 8 | 0 |
| 1999 | 5 | 0 |
| 2000 | 6 | 0 |
| 2001 | 4 | 3 |
| 2002 | 2 | 5 |
| 2003 | 6 | 7 |
| 2004 | 2 | 9 |
| 2005 | 7 | 5 |
| 2006 | 7 | 4 |
| 2007 | 3 | 8 |
| 2008 | 3 | 11 |
| 2009 | 9 | 21 |
| 2010 | 5 | 21 |
| 2011 | 13 | 18 |
| 2012 | 17 | 15 |
| 2013 | 20 | 18 |
| 2014 | 21 | 22 |
| 2015 | 30 | 35 |
| 2016 | 39 | 47 |
| 2017 | 36 | 36 |
| 2018 | 27 | 29 |
| 2019 | 44 | 34 |
| 2020 | 47 | 29 |
| 2021 | 31 | 28 |
| 2022 | 18 | 22 |
| 2023 | 23 | 25 |
| 2024 | 32 | 11 |
| 2025 | 16 | 15 |
| 2026 | 10 | 18 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Wireless communication device and method for IQ calibration1 Sep 2026US 12,726,395 B2TP-Link Systems Inc.
- Approximations in distribution matching procedures25 Aug 2026US 12,719,730 B2QUALCOMM Incorporated
- Data modulation method and apparatus, and medium and storage medium4 Aug 2026US 12,701,038 B2Zte Corporation
- Bit interleaving of modulation symbol mapping for data carrying reference signals21 Jul 2026US 12,689,464 B2QUALCOMM Incorporated
- Probabilistic constellation shaping schemes for multiple layer transmissions14 Jul 2026US 12,683,850 B2QUALCOMM Incorporated
- Approximations in distribution matching procedures8 Oct 2026US 2026/0312859 A1QUALCOMM Incorporated
- Smooshed bmocz zero-constellation for cfo estimation without channel coding1 Oct 2026US 2026/0303412 A1University of South Carolina
- Method and apparatus for communication of signals1 Oct 2026US 2026/0303433 A1QUANTUMSINE OPERATING Pte Ltd
- Method and apparatus for communication of signals1 Oct 2026US 2026/0303434 A1QUANTUMSINE OPERATING Pte Ltd
- Transmitting data to a network node, receiving data from a network node, and determining constellation points for signal transmission13 Aug 2026US 2026/0238539 A1Telefonaktiebolaget LM Ericsson (publ)
Most cited
By later US patents
- Simultaneous analog and digital communication applications200US 5,537,436 AAT&T Corp. · 1996
- Signal constellations for multi-carrier systems172US 7,394,865 B2Nokia Corporation · 2008
- Simultaneous transmission of speech and data over an analog channel170US 4,512,013 AAT&T Bell Laboratories · 1985
- Peak to average power ratio reduction methodology for QAM communications systems119US 5,381,449 AMotorola, Inc. · 1995
- Communication signal having a time domain pilot component103US 5,519,730 A1996