H03D 1/2245
Using two quadrature channels
Official title: {using two quadrature channels (H03D1/2209 takes precedence)}
H03D1/2245 (Using two quadrature channels) appears on 172 US grants and 47 published applications in this corpus.
Search patents in H03D- Granted patents
- 172
- Published applications
- 47
- Assignees
- 105
- Inventors
- 291
- Latest grant
- 24 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 5 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 4 | 0 |
| 1989 | 8 | 0 |
| 1990 | 11 | 0 |
| 1991 | 4 | 0 |
| 1992 | 11 | 0 |
| 1993 | 9 | 0 |
| 1994 | 10 | 0 |
| 1995 | 4 | 0 |
| 1996 | 2 | 0 |
| 1997 | 10 | 0 |
| 1998 | 11 | 0 |
| 1999 | 4 | 0 |
| 2000 | 1 | 0 |
| 2001 | 4 | 0 |
| 2002 | 5 | 6 |
| 2003 | 4 | 4 |
| 2004 | 4 | 5 |
| 2005 | 4 | 1 |
| 2006 | 6 | 5 |
| 2007 | 3 | 2 |
| 2008 | 2 | 3 |
| 2009 | 4 | 0 |
| 2010 | 3 | 1 |
| 2011 | 2 | 3 |
| 2012 | 3 | 1 |
| 2013 | 1 | 1 |
| 2014 | 1 | 0 |
| 2015 | 2 | 2 |
| 2016 | 1 | 0 |
| 2017 | 0 | 2 |
| 2018 | 2 | 0 |
| 2019 | 0 | 2 |
| 2020 | 2 | 2 |
| 2021 | 2 | 2 |
| 2022 | 4 | 2 |
| 2023 | 2 | 0 |
| 2024 | 0 | 1 |
| 2025 | 2 | 2 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Quadrature signal processor using single analog-to-digital converter unit24 Mar 2026US 12,587,427 B2NXP B. V.
- Measurement method with synchronous subsampling30 Dec 2025US 12,509,032 B2Safran Electronics & Defense
- Electronic devices with adjustable received sample bit width28 Oct 2025US 12,456,999 B2Apple Inc.
- Frequency stabilized microwave source using an IQ mixer to detect amplitude modulation of the reflected signal14 Nov 2023US 11,817,867 B1Raytheon Company
- Frequency stabilized and phase noise suppressed microwave source using an IQ mixer to detect amplitude modulation and phase perturbation of the reflected signal14 Nov 2023US 11,817,872 B1Raytheon Company
- Multi-path radio frequency system using local oscillation signals with frequencies having non-integer multiple relationship that are generated from same reference oscillation signal and associated local oscillation signal generation method7 Aug 2025US 2025/0253829 A1Mediatek Inc.
- Quadrature signal processor using single analog-to-digital converter unit19 Jun 2025US 2025/0202757 A1NXP B. V.
- Electronic Devices with Adjustable Received Sample Bit Width21 Mar 2024US 2024/0097727 A1Apple Inc.
- Method and system for hybrid modulation and demodulation4 Aug 2022US 2022/0247443 A1Intelligent Fusion Technology, Inc.
- Measurement method with synchronous subsampling16 Jun 2022US 2022/0185247 A1Safran Electronics & Defense
Most cited
By later US patents
- Digital radio frequency receiver350US 4,893,316 AMotorola, Inc. · 1990
- Phase and gain error control system for use in an I/Q direct conversion receiver160US 5,249,203 ARockwell International Corporation · 1993
- Universal platform for software defined radio148US 6,823,181 B1Sony Corporation · 2004
- Method and apparatus for compensation of imbalance in zero-if downconverters134US 5,263,196 AMotorola, Inc. · 1993
- Noise compensated synchronous detector system123US 4,675,613 AHewlett-Packard Company · 1987