H04L 27/2067
With more than two phase states
Official title: {with more than two phase states (H04L27/2064 takes precedence)}
H04L27/2067 (With more than two phase states) appears on 587 US grants and 449 published applications in this corpus.
Search patents in H04L- Granted patents
- 587
- Published applications
- 449
- Assignees
- 269
- Inventors
- 1,216
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 4 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 7 | 0 |
| 1986 | 4 | 0 |
| 1987 | 4 | 0 |
| 1988 | 6 | 0 |
| 1989 | 13 | 0 |
| 1990 | 5 | 0 |
| 1991 | 4 | 0 |
| 1992 | 5 | 0 |
| 1993 | 7 | 0 |
| 1994 | 9 | 0 |
| 1995 | 5 | 0 |
| 1996 | 8 | 0 |
| 1997 | 7 | 0 |
| 1998 | 13 | 0 |
| 1999 | 12 | 0 |
| 2000 | 15 | 0 |
| 2001 | 16 | 3 |
| 2002 | 18 | 13 |
| 2003 | 9 | 13 |
| 2004 | 7 | 21 |
| 2005 | 9 | 11 |
| 2006 | 21 | 14 |
| 2007 | 8 | 23 |
| 2008 | 17 | 26 |
| 2009 | 12 | 13 |
| 2010 | 16 | 17 |
| 2011 | 20 | 15 |
| 2012 | 26 | 29 |
| 2013 | 25 | 19 |
| 2014 | 27 | 26 |
| 2015 | 30 | 17 |
| 2016 | 19 | 19 |
| 2017 | 20 | 21 |
| 2018 | 14 | 14 |
| 2019 | 21 | 27 |
| 2020 | 20 | 22 |
| 2021 | 22 | 28 |
| 2022 | 14 | 3 |
| 2023 | 11 | 12 |
| 2024 | 18 | 17 |
| 2025 | 18 | 13 |
| 2026 | 5 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H04L 27/2071In which the data are represented by the carrier phase283
- H04L 27/2078In which the phase change per symbol period is constrained146
- H04L 27/2075In which the data are represented by the change in carrier phase46
- H04L 27/2089With unbalanced quadrature channels35
- H04L 27/2085With more than one phase shift per symbol period20
Recent patents
- Data transmission method and apparatus, communication node, and storage medium14 Jul 2026US 12,683,851 B2Zte Corporation
- Apparatus, system and method of phase shifting23 Jun 2026US 12,665,576 B2Intel Corporation
- System and method for multiple supply IQ sharing in digital to analog signal conversion9 Jun 2026US 12,652,204 B2Instituto de Pesquisas Eldorado
- Wake-up signal waveform design31 Mar 2026US 12,592,797 B2Rakuten Symphony, Inc.
- Information transmission method and apparatus, terminal and network device10 Mar 2026US 12,574,931 B2Datang Mobile Communications Equipment Co., Ltd.
- Channel estimation reference signal on quadrature amplitude modulation sub-constellation24 Sep 2026US 2026/0291800 A1QUALCOMM Incorporated
- Signaling designs enabling unequal modulation transmission on spatial streams in wireless communications17 Sep 2026US 2026/0281215 A1Mediatek Inc.
- Supporting frequency multiplexing of orthogonal frequency division multiplexing and single carrier modulation3 Sep 2026US 2026/0261370 A1Telefonaktiebolaget LM Ericsson (publ)
- Techniques for handling hybrid automatic repeat request-acknowledgment (harq-ack) codebook size mismatch27 Aug 2026US 2026/0254565 A1QUALCOMM Incorporated
- Multi-dimensional constellations with low peak-to-average power ratio27 Aug 2026US 2026/0254702 A1QUALCOMM Incorporated
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
- Interactive television and data transmission system366US 4,750,036 ARadio Telcom & Technology, Inc. · 1988
- Interactive television and data transmission system314US 5,177,604 ARadio Telcom & Technology, Inc. · 1993
- Method and system for block ARQ with reselection of FEC coding and/or modulation194US 6,208,663 B1Telefonaktiebolaget LM Ericsson (publ) · 2001
- Power amplification using a direct-upconverting quadrature mixer topology174US 6,307,894 B2Conexant Systems, Inc. · 2001