H04L 27/144
With demodulation using spectral properties of the received signal
Official title: with demodulation using spectral properties of the received signal, e.g. by using frequency selective- or frequency sensitive elements
H04L27/144 (With demodulation using spectral properties of the received signal) appears on 522 US grants and 358 published applications in this corpus.
Search patents in H04L- Granted patents
- 522
- Published applications
- 358
- Assignees
- 264
- Inventors
- 910
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 5 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 5 | 0 |
| 1981 | 3 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 5 | 0 |
| 1985 | 6 | 0 |
| 1986 | 10 | 0 |
| 1987 | 12 | 0 |
| 1988 | 5 | 0 |
| 1989 | 5 | 0 |
| 1990 | 2 | 0 |
| 1991 | 9 | 0 |
| 1992 | 6 | 0 |
| 1993 | 5 | 0 |
| 1994 | 7 | 0 |
| 1995 | 18 | 0 |
| 1996 | 15 | 0 |
| 1997 | 8 | 0 |
| 1998 | 7 | 0 |
| 1999 | 5 | 0 |
| 2000 | 13 | 0 |
| 2001 | 5 | 3 |
| 2002 | 7 | 9 |
| 2003 | 11 | 15 |
| 2004 | 9 | 10 |
| 2005 | 4 | 9 |
| 2006 | 8 | 9 |
| 2007 | 5 | 10 |
| 2008 | 9 | 6 |
| 2009 | 6 | 9 |
| 2010 | 8 | 9 |
| 2011 | 7 | 7 |
| 2012 | 7 | 3 |
| 2013 | 9 | 7 |
| 2014 | 13 | 19 |
| 2015 | 20 | 32 |
| 2016 | 32 | 27 |
| 2017 | 28 | 33 |
| 2018 | 28 | 28 |
| 2019 | 32 | 19 |
| 2020 | 27 | 34 |
| 2021 | 23 | 12 |
| 2022 | 18 | 12 |
| 2023 | 10 | 14 |
| 2024 | 12 | 7 |
| 2025 | 12 | 9 |
| 2026 | 7 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Transceiver device and method thereof6 Oct 2026US 12,756,606 B2Realtek Semiconductor Corp.
- Demodulator circuit2 Jun 2026US 12,647,306 B2Infineon Technologies AG
- Synchronization detection apparatus, synchronization detection method, and non-transitory computer readable medium12 May 2026US 12,627,545 B2JVCKENWOOD Corporation
- Multi-gigabit per second frequency-shift keying (FSK) transceiver28 Apr 2026US 12,615,174 B2The Regents of the University of California
- Frequency shift keying (FSK)-modulated signal discrimination10 Mar 2026US 12,574,271 B2Intel Corporation
- Adaptive receiver diversity (ard) with a low-power mode (lpm)17 Sep 2026US 2026/0281907 A1QUALCOMM Incorporated
- Coherent bpsk demodulator and method of demodulating a signal3 Sep 2026US 2026/0261459 A1EM Microelectronic-Marin SA
- High-bitrate fskd dithering compensation circuit27 Aug 2026US 2026/0254684 A1STMicroelectronics International N. V.
- Gauss frequency shift keying (gfsk) signal receiving method and apparatus, electronic device, and storage medium13 Aug 2026US 2026/0238524 A1Guangzhou Anyka Microelectronics Co., Ltd.
- Demodulator circuit19 Mar 2026US 2026/0081813 A1Infineon Technologies AG
Most cited
By later US patents
- Data transmission system including an RF transponder for generating a broad spectrum of intelligence bearing sidebands259US 3,967,202 ANorthern Illinois Gas Company · 1976
- Method and system for down-converting electromagnetic signals185US 6,061,551 AParkerVision, Inc. · 2000
- Group-addressable transponder arrangement155US 5,410,315 ATexas Instruments Incorporated · 1995
- Digital communications equipment using differential quaternary frequency shift keying125US 5,412,687 AProxim, Inc. · 1995
- Modulation and demodulation of plural channels using analog and digital components124US 5,444,415 ATexas Instruments Incorporated · 1995