H03D 7/168
Using a feedback loop containing mixers or demodulators
Official title: {using a feedback loop containing mixers or demodulators}
H03D7/168 (Using a feedback loop containing mixers or demodulators) appears on 59 US grants and 26 published applications in this corpus.
Search patents in H03D- Granted patents
- 59
- Published applications
- 26
- Assignees
- 34
- Inventors
- 84
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 8 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 2 |
| 2003 | 3 | 1 |
| 2004 | 2 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 2 |
| 2011 | 1 | 0 |
| 2012 | 1 | 0 |
| 2013 | 2 | 1 |
| 2014 | 2 | 1 |
| 2015 | 2 | 2 |
| 2016 | 1 | 0 |
| 2017 | 1 | 0 |
| 2018 | 1 | 2 |
| 2019 | 1 | 0 |
| 2020 | 1 | 10 |
| 2021 | 1 | 0 |
| 2022 | 4 | 0 |
| 2023 | 1 | 2 |
| 2024 | 4 | 0 |
| 2025 | 1 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Wireless circuitry with low-noise peak detection7 Jul 2026US 12,674,825 B2Apple Inc.
- Apparatus comprising a local oscillator for driving a mixer3 Jun 2025US 12,323,102 B2Renesas Design Netherlands B.V.
- Wearable devices for health monitoring using radio waves that include signal isolation28 May 2024US 11,992,299 B2Movano Inc.
- Systems for health monitoring using radio waves that include collocated RF components28 May 2024US 11,992,300 B2Movano Inc.
- Methods for monitoring a blood glucose level in a person using radio waves21 May 2024US 11,986,277 B2Movano Inc.
- Wireless Circuitry with Low-Noise Peak Detection4 Sep 2025US 2025/0277825 A1Apple Inc.
- Systems for health monitoring using radio waves that include collocated rf components28 Sep 2023US 2023/0301533 A1Movano Inc.
- Apparatus Comprising a Local Oscillator for Driving a Mixer18 May 2023US 2023/0155552 A1Renesas Design Netherlands B.V.
- Wideband lo signal generation12 Nov 2020US 2020/0356133 A1QUALCOMM Incorporated
- System and method for determining angle of arrival for communications20 Aug 2020US 2020/0264256 A1Denso Corporation
Most cited
By later US patents
- Method and apparatus for detecting and compensating for undesired phase shift in a radio transceiver156US 5,894,496 AEricsson Inc. · 1999
- Adaptive predistortion technique for linearizing a power amplifier for digital data systems133US 4,291,277 AHarris Corporation · 1981
- Predistortion system and method using analog feedback loop for look-up table training123US 5,959,499 AMotorola, Inc. · 1999
- Method and apparatus for compensating for imbalances between quadrature signals118US 6,009,317 AEricsson Inc. · 1999
- Apparatus and method of linearizing a power amplifier in a mobile radio communication system68US 6,240,144 B1Samsung Electronics Co., Ltd. · 2001