H03L 2207/00
Indexing scheme relating to automatic control of frequency or phase and to
Official title: Indexing scheme relating to automatic control of frequency or phase and to synchronisation
H03L2207/00 (Indexing scheme relating to automatic control of frequency or phase and to) appears on 2,253 US grants and 1,843 published applications in this corpus.
Search patents in H03L- Granted patents
- 2,253
- Published applications
- 1,843
- Assignees
- 596
- Inventors
- 3,359
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 4 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 5 | 0 |
| 1983 | 4 | 0 |
| 1984 | 0 | 0 |
| 1985 | 5 | 0 |
| 1986 | 5 | 0 |
| 1987 | 5 | 0 |
| 1988 | 5 | 0 |
| 1989 | 3 | 0 |
| 1990 | 7 | 0 |
| 1991 | 12 | 0 |
| 1992 | 7 | 0 |
| 1993 | 11 | 0 |
| 1994 | 20 | 0 |
| 1995 | 21 | 0 |
| 1996 | 29 | 0 |
| 1997 | 25 | 0 |
| 1998 | 26 | 0 |
| 1999 | 33 | 0 |
| 2000 | 35 | 0 |
| 2001 | 43 | 18 |
| 2002 | 42 | 75 |
| 2003 | 56 | 50 |
| 2004 | 54 | 67 |
| 2005 | 51 | 68 |
| 2006 | 74 | 77 |
| 2007 | 63 | 81 |
| 2008 | 70 | 66 |
| 2009 | 70 | 94 |
| 2010 | 102 | 107 |
| 2011 | 101 | 70 |
| 2012 | 103 | 87 |
| 2013 | 94 | 74 |
| 2014 | 92 | 74 |
| 2015 | 85 | 67 |
| 2016 | 104 | 96 |
| 2017 | 97 | 83 |
| 2018 | 80 | 93 |
| 2019 | 111 | 92 |
| 2020 | 123 | 89 |
| 2021 | 102 | 72 |
| 2022 | 62 | 61 |
| 2023 | 80 | 52 |
| 2024 | 35 | 54 |
| 2025 | 64 | 39 |
| 2026 | 26 | 37 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H03L 2207/06Phase locked loops with a controlled oscillator having at least two frequencyIndexing code973
- H03L 2207/50All digital phase-locked loopIndexing code948
- H03L 2207/12Indirect frequency synthesis using a mixer in the phase-locked loopIndexing code121
- H03L 2207/14Preventing false-lock or pseudo-lock of the pllIndexing code105
- H03L 2207/10Indirect frequency synthesis using a frequency multiplier in the phase-locked loop orIndexing code89
- H03L 2207/04Modifications for maintaining constant the phase-locked loop damping factor when other loopIndexing code80
- H03L 2207/18Temporarily disabling, deactivating or stopping the frequency counter or dividerIndexing code42
- H03L 2207/08Modifications of the phase-locked loop for ensuring constant frequency when the powerIndexing code40
All 9 subgroupsShow fewer
Recent patents
- Circuit apparatus and oscillator8 Sep 2026US 12,732,135 B2Seiko Epson Corporation
- All digital phase-locked loop circuit8 Sep 2026US 12,732,197 B2Sony Semiconductor Solutions Corporation
- Regulator circuit, an electronic device including the regulator circuit, and a processor including the regulator circuit25 Aug 2026US 12,717,391 B2Samsung Electronics Co., Ltd.
- Multi-carrier transceiver and multi-frequency PLL system25 Aug 2026US 12,719,483 B2Telefonaktiebolaget LM Ericsson (publ)
- Clock generator and method of clock generation4 Aug 2026US 12,700,854 B2Dolphin Semiconductor
- A wide-band, multi-phase phase-locked loop circuit24 Sep 2026US 2026/0291506 A1University of Utah Research Foundation
- Phase-locked circuit, imaging device, and electronic circuit27 Aug 2026US 2026/0254457 A1Sony Semiconductor Solutions Corporation
- Reduce dco frequency overlap-induced limit cycle in hybrid and digital plls6 Aug 2026US 2026/0230079 A1Microchip Technology Incorporated
- Multi-level phase detector in a baseband phase locked loop30 Jul 2026US 2026/0221976 A1QUALCOMM Incorporated
- Synchronized feed forward frequency decoder and scalable voltage controlled oscillator for fractional-n phase locked loop30 Jul 2026US 2026/0221978 A1Marvell Asia Pte Ltd
Most cited
By later US patents
- Voltage controlled oscillator with current control134US 5,175,884 AMotorola, Inc. · 1992
- Synchronous clock generator including a false lock detector132US 5,940,609 AMicorn Technology, Inc. · 1999
- Frequency converter for outputting a stable frequency by feedback via a phase locked loop130US 5,825,254 ASamsung Electronics Co., Ltd. · 1998
- Phase lock loop with phase interpolation by reference clock and method for the same129US 8,253,454 B2Realtek Semiconductor Corp. · 2012
- Dual band transmitter for a cellular phone comprising a PLL120US 6,150,890 AConexant Systems, Inc. · 2000