H03K 3/023
By the use of differential amplifiers or comparators, with internal or external
Official title: by the use of differential amplifiers or comparators, with internal or external positive feedback
H03K3/023 (By the use of differential amplifiers or comparators, with internal or external) appears on 1,371 US grants and 823 published applications in this corpus.
Search patents in H03K- Granted patents
- 1,371
- Published applications
- 823
- Assignees
- 540
- Inventors
- 2,266
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 12 | 0 |
| 1978 | 4 | 0 |
| 1979 | 3 | 0 |
| 1980 | 4 | 0 |
| 1981 | 12 | 0 |
| 1982 | 4 | 0 |
| 1983 | 9 | 0 |
| 1984 | 6 | 0 |
| 1985 | 17 | 0 |
| 1986 | 13 | 0 |
| 1987 | 17 | 0 |
| 1988 | 12 | 0 |
| 1989 | 13 | 0 |
| 1990 | 11 | 0 |
| 1991 | 14 | 0 |
| 1992 | 24 | 0 |
| 1993 | 14 | 0 |
| 1994 | 21 | 0 |
| 1995 | 38 | 0 |
| 1996 | 37 | 0 |
| 1997 | 46 | 0 |
| 1998 | 37 | 0 |
| 1999 | 42 | 0 |
| 2000 | 39 | 0 |
| 2001 | 39 | 3 |
| 2002 | 33 | 32 |
| 2003 | 29 | 22 |
| 2004 | 28 | 28 |
| 2005 | 32 | 36 |
| 2006 | 34 | 29 |
| 2007 | 27 | 21 |
| 2008 | 15 | 23 |
| 2009 | 25 | 6 |
| 2010 | 16 | 16 |
| 2011 | 18 | 17 |
| 2012 | 16 | 20 |
| 2013 | 15 | 37 |
| 2014 | 43 | 30 |
| 2015 | 35 | 29 |
| 2016 | 36 | 36 |
| 2017 | 39 | 44 |
| 2018 | 36 | 44 |
| 2019 | 57 | 58 |
| 2020 | 80 | 58 |
| 2021 | 47 | 44 |
| 2022 | 46 | 38 |
| 2023 | 48 | 45 |
| 2024 | 49 | 45 |
| 2025 | 41 | 40 |
| 2026 | 27 | 22 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Apparatus with self calibration in isolated communication and method thereof22 Sep 2026US 12,744,517 B2Hyundai Mobis Co., Ltd.
- Methods and circuits for slew-rate calibration25 Aug 2026US 12,719,454 B2Rambus Inc.
- Programmable voltage to time converter25 Aug 2026US 12,719,492 B2Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Accurate delay generator and accurate oscillator18 Aug 2026US 12,712,527 B1
- Magnetoresistive relaxation oscillator type magnetometer11 Aug 2026US 12,704,566 B2MultiDimension Technology Co., Ltd.
- Clock generating mechanism capable of mitigating clock glitches of digital circuit by selecting good/better timing to output received frequency control signal10 Sep 2026US 2026/0269812 A1Pixart Imaging Inc.
- Accurate Delay generator and Accurate Oscillator20 Aug 2026US 2026/0246453 A1
- Voltage-controlled rc oscillator and method for generating a clock signal30 Jul 2026US 2026/0221939 A1
- Oscillator based sensors23 Jul 2026US 2026/0210782 A1Cirrus Logic International Semiconductor Ltd.
- Voltage-controlled oscillator circuits23 Jul 2026US 2026/0213736 A1Cirrus Logic International Semiconductor Ltd.
Most cited
By later US patents
- Method and circuitry for clock synchronization301US 5,485,490 ARambus Inc. · 1996
- Configuring digital functions in a digital configurable macro architecture193US 6,603,330 B1Cypress Semiconductor Corporation · 2003
- Switching power supply VCO169US 4,797,803 ADCI Technology · 1989
- Capacitance sensor using relaxation oscillators166US 7,307,485 B1Cypress Semiconductor Corporation · 2007
- Accurate RC oscillator having peak - to - peak voltage control147US 5,670,915 AMicrochip Technology Incorporated · 1997