G01P 3/489
Digital circuits therefor
G01P3/489 (Digital circuits therefor) appears on 640 US grants and 326 published applications in this corpus.
Search patents in G01P- Granted patents
- 640
- Published applications
- 326
- Assignees
- 321
- Inventors
- 1,184
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 14 | 0 |
| 1977 | 20 | 0 |
| 1978 | 14 | 0 |
| 1979 | 9 | 0 |
| 1980 | 11 | 0 |
| 1981 | 15 | 0 |
| 1982 | 8 | 0 |
| 1983 | 9 | 0 |
| 1984 | 10 | 0 |
| 1985 | 13 | 0 |
| 1986 | 18 | 0 |
| 1987 | 10 | 0 |
| 1988 | 11 | 0 |
| 1989 | 12 | 0 |
| 1990 | 15 | 0 |
| 1991 | 12 | 0 |
| 1992 | 15 | 0 |
| 1993 | 16 | 0 |
| 1994 | 14 | 0 |
| 1995 | 9 | 0 |
| 1996 | 16 | 0 |
| 1997 | 9 | 0 |
| 1998 | 12 | 0 |
| 1999 | 9 | 0 |
| 2000 | 16 | 0 |
| 2001 | 17 | 2 |
| 2002 | 11 | 5 |
| 2003 | 14 | 10 |
| 2004 | 13 | 21 |
| 2005 | 12 | 19 |
| 2006 | 18 | 10 |
| 2007 | 11 | 10 |
| 2008 | 10 | 15 |
| 2009 | 7 | 11 |
| 2010 | 11 | 23 |
| 2011 | 6 | 13 |
| 2012 | 12 | 5 |
| 2013 | 19 | 14 |
| 2014 | 11 | 21 |
| 2015 | 19 | 21 |
| 2016 | 13 | 13 |
| 2017 | 11 | 14 |
| 2018 | 14 | 13 |
| 2019 | 16 | 13 |
| 2020 | 17 | 20 |
| 2021 | 15 | 15 |
| 2022 | 13 | 8 |
| 2023 | 9 | 8 |
| 2024 | 10 | 10 |
| 2025 | 8 | 8 |
| 2026 | 6 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Rotational speed estimation method for incremental encoder29 Sep 2026US 12,748,125 B2Artery Technology Co., Ltd.
- Methods and apparatus to generate a pulse waveform from a tachometer signal25 Aug 2026US 12,716,908 B2Computational Systems, Inc.
- Integrated machine speed signal waveform capture14 Jul 2026US 12,680,466 B2Woodward, Inc.
- System for compensating for an output latency in a speed sensor7 Jul 2026US 12,674,813 B2Allegro MicroSystems, LLC
- Magnetic field speed sensor output signal protocol26 May 2026US 12,638,469 B2Allegro MicroSystems, LLC
- Systems, methods, and structures for improving magnetic field sensor performance7 May 2026US 2026/0126305 A1Allegro MicroSystems, LLC
- Pulse width modulation signal generator and method7 May 2026US 2026/0128699 A1Infineon Technologies AG
- Method of Estimating Motor Speed and Motor Control System12 Feb 2026US 2026/0043826 A1Infineon Technologies Austria AG
- Wheel speed scaler for vehicles5 Feb 2026US 2026/0036603 A1DirectDrive Plus, LLC
- System for compensating for an output latency in a speed sensor25 Dec 2025US 2025/0389747 A1Allegro MicroSystems, LLC
Most cited
By later US patents
- Multi-bit encoder signal conditioning circuit having common mode disturbance compensation655US 5,291,133 AGeneral Motors Corporation · 1994
- Anti-kickback power tool control220US 4,267,914 ABlack & Decker Inc. · 1981
- Swing parameter measurement system187US 4,759,219 ASwingspeed, Inc. · 1988
- Anti-kickback power tool control185US 4,249,117 ABlack & Decker Inc. · 1981
- Programmable multifunction speedometer127US 5,636,145 AThomas J. Faria Corp. · 1997