H04B 14/002
Transmission systems not characterised by the medium used for transmission: characterised by
Official title: {characterised by the use of a carrier modulation (using subcarrier modulation H04B14/08)}
H04B14/002 (Transmission systems not characterised by the medium used for transmission: characterised by) appears on 129 US grants and 64 published applications in this corpus.
Search patents in H04B- Granted patents
- 129
- Published applications
- 64
- Assignees
- 88
- Inventors
- 191
- Latest grant
- 20 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 5 | 0 |
| 1978 | 5 | 0 |
| 1979 | 4 | 0 |
| 1980 | 5 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 8 | 0 |
| 1986 | 4 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 1 |
| 2002 | 0 | 1 |
| 2003 | 1 | 1 |
| 2004 | 1 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 2 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 2 | 1 |
| 2013 | 2 | 3 |
| 2014 | 2 | 4 |
| 2015 | 5 | 6 |
| 2016 | 3 | 4 |
| 2017 | 5 | 5 |
| 2018 | 6 | 7 |
| 2019 | 12 | 6 |
| 2020 | 4 | 6 |
| 2021 | 8 | 7 |
| 2022 | 4 | 1 |
| 2023 | 3 | 1 |
| 2024 | 2 | 2 |
| 2025 | 1 | 2 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Amplitude modulation transmission device20 Jan 2026US 12,531,516 B2Research & Business Foundation Sungkyunkwan University
- Systems and methods for supporting both pulse amplitude modulation and quadrature amplitude modulation10 Jun 2025US 12,328,219 B2Altera Corporation
- Communication devices and methods29 Oct 2024US 12,132,601 B2Sony Group Corporation
- Gyroscope with self-test5 Mar 2024US 11,920,931 B2Murata Manufacturing Co., Ltd.
- Ambient backscattering communication system, associated apparatus and method12 Dec 2023US 11,843,444 B2Centre National De La Recherche Scientifique
- Systems and Methods for Supporting Both Pulse Amplitude Modulation and Quadrature Amplitude Modulation2 Oct 2025US 2025/0310173 A1Altera Corporation
- Amplitude modulation transmission device20 Mar 2025US 2025/0096909 A1Research & Business Foundation Sungkyunkwan University
- Synthesizing composite signals19 Dec 2024US 2024/0421847 A1Textron Systems Corporation
- Data transmission method and apparatus, communication node, and storage medium25 Jul 2024US 2024/0250861 A1Zte Corporation
- Communication devices and methods4 May 2023US 2023/0140226 A1Sony Group Corporation
Most cited
By later US patents
- Industrial process control system396US 4,152,760 AThe Foxboro Company · 1979
- Communication system231US 6,271,790 B1Smith Technology Development · 2001
- Optical transmission system178US 4,533,247 AInternational Standard Electric Corporation · 1985
- Methods and apparatus for reducing intelligible crosstalk in single sideband radio systems121US 4,019,140 ABell Telephone Laboratories, Incorporated · 1977
- FM RF signal generator using step recovery diode102US 4,013,966 AThe United States of America as represented by the Secretary of the Navy · 1977