H03L 2207/12
Indirect frequency synthesis using a mixer in the phase-locked loop
H03L2207/12 (Indirect frequency synthesis using a mixer in the phase-locked loop) appears on 121 US grants and 91 published applications in this corpus.
Search patents in H03L- Granted patents
- 121
- Published applications
- 91
- Assignees
- 85
- Inventors
- 218
- Latest grant
- 14 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 5 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 3 |
| 2002 | 3 | 8 |
| 2003 | 5 | 3 |
| 2004 | 4 | 6 |
| 2005 | 4 | 5 |
| 2006 | 9 | 9 |
| 2007 | 6 | 3 |
| 2008 | 7 | 3 |
| 2009 | 8 | 7 |
| 2010 | 7 | 7 |
| 2011 | 7 | 3 |
| 2012 | 2 | 3 |
| 2013 | 6 | 4 |
| 2014 | 9 | 6 |
| 2015 | 5 | 2 |
| 2016 | 4 | 1 |
| 2017 | 3 | 2 |
| 2018 | 1 | 5 |
| 2019 | 2 | 1 |
| 2020 | 1 | 2 |
| 2021 | 3 | 2 |
| 2022 | 0 | 2 |
| 2023 | 5 | 2 |
| 2024 | 0 | 1 |
| 2025 | 4 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Frequency synthesizers having low phase noise14 Oct 2025US 12,445,138 B1Anritsu Corporation
- Phase locked oscillator and method3 Jun 2025US 12,323,101 B2Nanowave, Inc.
- Electronic devices with low phase noise frequency generation27 May 2025US 12,316,278 B2Apple Inc.
- Phase coherent synthesizer4 Feb 2025US 12,218,671 B2Rohde & Schwarz GmbH & Co.KG
- Frequency stabilized microwave source using an IQ mixer to detect amplitude modulation of the reflected signal14 Nov 2023US 11,817,867 B1Raytheon Company
- Electronic Devices with Low Phase Noise Frequency Generation2 Oct 2025US 2025/0309828 A1Apple Inc.
- Phase locked oscillator and method23 May 2024US 2024/0171126 A1Nanowave Technologies Inc.
- Electronic Devices with Low Phase Noise Frequency Generation2 Nov 2023US 2023/0353093 A1Apple Inc.
- Positioning Method, Positioning Chip, and Terminal Device30 Mar 2023US 2023/0103074 A1Huawei Technologies Co., Ltd.
- Phase coherent synthesizer25 Aug 2022US 2022/0271743 A1Rohde & Schwarz GmbH & Co.KG
Most cited
By later US patents
- Frequency converter for outputting a stable frequency by feedback via a phase locked loop130US 5,825,254 ASamsung Electronics Co., Ltd. · 1998
- Adaptive radio transceiver with CMOS offset PLL69US 7,082,293 B1Broadcom Corporation · 2006
- Frequency measurement based frequency locked loop synthesizer49US 7,750,685 B1RF Micro Devices, Inc. · 2010
- Frequency synthesizer47US 5,781,600 AMarconi Instruments Limited · 1998
- Methods and circuits for correcting a duty-cycle of a signal40US 6,466,071 B2Samsung Electronics Co., Ltd. · 2002