H04L 27/2025
In which the phase changes in a piecewise linear manner within each
Official title: {in which the phase changes in a piecewise linear manner within each symbol period}
H04L27/2025 (In which the phase changes in a piecewise linear manner within each) appears on 25 US grants and 2 published applications in this corpus.
Search patents in H04L- Granted patents
- 25
- Published applications
- 2
- Assignees
- 21
- Inventors
- 37
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 5 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Signal processing method and apparatus22 Sep 2026US 12,744,696 B2Huawei Technologies Co., Ltd.
- QM-CPM modems with higher order signaling3 Aug 2010US 7,769,096 B2Trellis Phase Communications, LP
- Radio-frequency signal generator4 Apr 2000US 6,046,643 ASiemens Aktiengesellschaft
- Digital modulation employing single sideband with suppressed carrier27 Jul 1999US 5,930,303 A
- FSK communication device for digital information16 Mar 1999US 5,883,922 AOlivetti Telemedia S.p.A.
Most cited
By later US patents
- Digital continuous phase modulation for a DDS-driven phase locked loop125US 5,834,985 ATelefonaktiebolaget'l M Ericsson (Publ) · 1998
- Digital modulation employing single sideband with suppressed carrier100US 5,930,303 A1999
- Arrangement for generating an angle-modulated carrier signal of a constant amplitude in response to data signals39US 4,686,688 AU. S. Philips Corporation · 1987
- Arrangement for combining data symbols in accordance with a predetermined weighting function32US 4,105,863 ABell Telephone Laboratories, Incorporated · 1978
- PSK modulator with reduced spectrum occupancy17US 3,973,201 ANCR Corporation · 1976