H04L 27/24
Half-wave signalling systems
H04L27/24 (Half-wave signalling systems) appears on 46 US grants and 32 published applications in this corpus.
Search patents in H04L- Granted patents
- 46
- Published applications
- 32
- Assignees
- 25
- Inventors
- 67
- Latest grant
- 10 Dec 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 5 |
| 2003 | 1 | 3 |
| 2004 | 0 | 4 |
| 2005 | 2 | 3 |
| 2006 | 4 | 2 |
| 2007 | 4 | 2 |
| 2008 | 2 | 2 |
| 2009 | 0 | 0 |
| 2010 | 1 | 2 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 2 | 1 |
| 2014 | 1 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 1 | 1 |
| 2018 | 0 | 1 |
| 2019 | 0 | 0 |
| 2020 | 2 | 1 |
| 2021 | 0 | 1 |
| 2022 | 1 | 1 |
| 2023 | 1 | 2 |
| 2024 | 2 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Devices, systems, and methods employing polynomial symbol waveforms10 Dec 2024US 12,166,622 B2Astrapi Corporation
- Method and transmitter for constant envelope phase modulation and demodulation15 Oct 2024US 12,119,967 B2Nanjing Zgmicro Company Limited
- Devices, systems, and methods employing polynomial symbol waveforms15 Aug 2023US 11,729,041 B2Astrapi Corporation
- Devices, systems, and methods employing polynomial symbol waveforms18 Jan 2022US 11,228,477 B2Astrapi Corporation
- Devices, systems, and methods employing polynomial symbol waveforms24 Nov 2020US 10,848,364 B2Astrapi Corporation
- Synthesizing composite signals19 Dec 2024US 2024/0421847 A1Textron Systems Corporation
- Devices, Systems, And Methods Employing Polynomial Symbol Waveforms7 Dec 2023US 2023/0396483 A1Astrapi Corporation
- Method and Transmitter for constant envelope phase modulation and demodulation13 Apr 2023US 2023/0114670 A1Nanjing Zgmicro Company Limited
- Devices, Systems, And Methods Employing Polynomial Symbol Waveforms5 May 2022US 2022/0141077 A1Astrapi Corporation
- Devices, Systems, And Methods Employing Polynomial Symbol Waveforms21 Jan 2021US 2021/0021453 A1Astrapi Corporation
Most cited
By later US patents
- Digital two-wire irrigation control system with feedback105US 4,131,882 AClemar Manufacturing Corporation · 1978
- Method and apparatus for transmitting coded information56US 5,050,188 A1991
- Sinusoidal pulse and pulse train signaling apparatus46US 5,675,609 ADakota Research, Inc. · 1997
- Multiplex system having digital coded power line signals36US 4,222,035 A1980
- Method and system for encoding and decoding frequency shift keying signals28US 5,103,463 AComacs, Ltd. · 1992