H03K 3/0315
Ring oscillators
Official title: {Ring oscillators}
H03K3/0315 (Ring oscillators) appears on 1,917 US grants and 1,576 published applications in this corpus.
Search patents in H03K- Granted patents
- 1,917
- Published applications
- 1,576
- Assignees
- 585
- Inventors
- 3,260
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 4 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 9 | 0 |
| 1990 | 7 | 0 |
| 1991 | 12 | 0 |
| 1992 | 5 | 0 |
| 1993 | 10 | 0 |
| 1994 | 19 | 0 |
| 1995 | 34 | 0 |
| 1996 | 30 | 0 |
| 1997 | 33 | 0 |
| 1998 | 31 | 0 |
| 1999 | 33 | 0 |
| 2000 | 43 | 0 |
| 2001 | 37 | 8 |
| 2002 | 36 | 43 |
| 2003 | 41 | 52 |
| 2004 | 59 | 43 |
| 2005 | 42 | 69 |
| 2006 | 53 | 67 |
| 2007 | 54 | 54 |
| 2008 | 56 | 80 |
| 2009 | 52 | 68 |
| 2010 | 70 | 60 |
| 2011 | 59 | 42 |
| 2012 | 60 | 35 |
| 2013 | 41 | 73 |
| 2014 | 57 | 65 |
| 2015 | 79 | 64 |
| 2016 | 97 | 90 |
| 2017 | 77 | 74 |
| 2018 | 55 | 63 |
| 2019 | 109 | 86 |
| 2020 | 108 | 88 |
| 2021 | 91 | 52 |
| 2022 | 58 | 67 |
| 2023 | 73 | 62 |
| 2024 | 52 | 66 |
| 2025 | 75 | 64 |
| 2026 | 35 | 41 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Systems, methods, and apparatus for controlling oscillator frequency response22 Sep 2026US 12,744,536 B2Samsung Electronics Co., Ltd.
- Voltage detecting circuit and information processing apparatus25 Aug 2026US 12,716,921 B2Fujitsu Limited
- Drive signal supply device and drive signal calibrating method thereof25 Aug 2026US 12,719,453 B2Samsung Electronics Co., Ltd.
- Photosensitive ring oscillator preparation method and artificial retina thereof25 Aug 2026US 12,719,455 B2
- Real-time clock generation device and real-time clock generation method25 Aug 2026US 12,719,484 B2MegaChips Corporation
- Transmitter, integrated circuit and method for calibrating output impedance8 Oct 2026US 2026/0312576 A1Taiwan Semiconductor Manufacturing Company.Ltd
- Semiconductor device1 Oct 2026US 2026/0302937 A1Renesas Electronics Corporation
- Clock generation circuit and semiconductor components1 Oct 2026US 2026/0303068 A1Winbond Electronics Corp.
- Digitally controlled oscillator biasing at minimum frequency1 Oct 2026US 2026/0303071 A1QUALCOMM Incorporated
- Semiconductor device and method for driving the same10 Sep 2026US 2026/0269822 A1Renesas Electronics Corporation
Most cited
By later US patents
- Method and circuitry for clock synchronization301US 5,485,490 ARambus Inc. · 1996
- Gate speed regulator dithering ring oscillator to match critical path circuit170US 8,350,628 B1Western Digital Technologies, Inc. · 2013
- Regulating power consumption of digital circuitry using a multi-layer ring oscillator137US 8,324,974 B1Western Digital Technologies, Inc. · 2012
- Self-calibrated clock and timing signal generator for MOS/VLSI circuitry132US 4,494,021 AXerox Corporation · 1985
- Ring oscillator using even numbers of differential stages with current mirrors131US 5,596,302 ALucent Technologies Inc. · 1997