H04L 27/1525
Using quadrature demodulation
Official title: {using quadrature demodulation}
H04L27/1525 (Using quadrature demodulation) appears on 152 US grants and 69 published applications in this corpus.
Search patents in H04L- Granted patents
- 152
- Published applications
- 69
- Assignees
- 94
- Inventors
- 270
- Latest grant
- 27 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 9 | 0 |
| 1987 | 9 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 6 | 0 |
| 1992 | 6 | 0 |
| 1993 | 5 | 0 |
| 1994 | 3 | 0 |
| 1995 | 8 | 0 |
| 1996 | 5 | 0 |
| 1997 | 7 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 5 | 0 |
| 2001 | 2 | 3 |
| 2002 | 3 | 6 |
| 2003 | 8 | 7 |
| 2004 | 4 | 6 |
| 2005 | 3 | 4 |
| 2006 | 3 | 4 |
| 2007 | 2 | 2 |
| 2008 | 4 | 1 |
| 2009 | 2 | 2 |
| 2010 | 2 | 4 |
| 2011 | 2 | 2 |
| 2012 | 1 | 1 |
| 2013 | 2 | 1 |
| 2014 | 3 | 2 |
| 2015 | 4 | 6 |
| 2016 | 3 | 3 |
| 2017 | 2 | 4 |
| 2018 | 1 | 1 |
| 2019 | 4 | 1 |
| 2020 | 2 | 4 |
| 2021 | 4 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 1 | 1 |
| 2025 | 1 | 1 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Programmable delay-locked loop (DLL) that utilizes a low power phase detector27 Jan 2026US 12,537,663 B2QUALCOMM Incorporated
- Low-power radio transmissions21 Oct 2025US 12,452,114 B2Nordic Semiconductor ASA
- Coherent detection-based high-speed chaotic secure transmission method24 Sep 2024US 12,101,392 B2Southwest Jiaotong University
- Method and apparatus for handling collisions in next generation communication system21 Dec 2021US 11,206,578 B2Samsung Electronics Co., Ltd.
- Receive device, recording medium for receiving signal13 Apr 2021US 10,979,261 B2JVCKENWOOD Corporation
- Coherent bpsk demodulator and method of demodulating a signal3 Sep 2026US 2026/0261459 A1EM Microelectronic-Marin SA
- Digital calibration device for rf system19 Feb 2026US 2026/0051963 A1NXP B. V.
- Programmable delay-locked loop (dll) that utilizes a low power phase detector25 Sep 2025US 2025/0300803 A1QUALCOMM Incorporated
- Low-power radio transmissions29 Aug 2024US 2024/0291700 A1Nordic Semiconductor ASA
- Coherent detection-based high-speed chaotic secure transmission method5 May 2022US 2022/0140994 A1Southwest Jiaotong University
Most cited
By later US patents
- Modulation and demodulation of plural channels using analog and digital components124US 5,444,415 ATexas Instruments Incorporated · 1995
- Direct conversion radio receiver for FM signals120US 4,521,892 AInternational Standard Electric Corporation · 1985
- Multi-level mixer architecture for direct conversion of FSK signals119US 6,018,553 AWireless Access · 2000
- Digital demodulator arrangement for quadrature signals115US 4,583,239 AStc PLC · 1986
- Direct conversion receiver with dithering local carrier frequency for detecting transmitted carrier frequency115US 5,091,921 ANEC Corporation · 1992