H03K 21/02
Input circuits
H03K21/02 (Input circuits) appears on 424 US grants and 335 published applications in this corpus.
Search patents in H03K- Granted patents
- 424
- Published applications
- 335
- Assignees
- 231
- Inventors
- 774
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 13 | 0 |
| 1977 | 11 | 0 |
| 1978 | 11 | 0 |
| 1979 | 7 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 2 |
| 2004 | 1 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 2 |
| 2007 | 2 | 4 |
| 2008 | 1 | 3 |
| 2009 | 5 | 7 |
| 2010 | 4 | 3 |
| 2011 | 7 | 9 |
| 2012 | 12 | 14 |
| 2013 | 19 | 26 |
| 2014 | 21 | 20 |
| 2015 | 21 | 29 |
| 2016 | 40 | 27 |
| 2017 | 30 | 22 |
| 2018 | 20 | 26 |
| 2019 | 31 | 26 |
| 2020 | 33 | 16 |
| 2021 | 23 | 19 |
| 2022 | 22 | 21 |
| 2023 | 22 | 14 |
| 2024 | 18 | 21 |
| 2025 | 16 | 15 |
| 2026 | 11 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Low-jitter random clock generation circuit8 Sep 2026US 12,732,176 B2Chongqing GigaChip Technology Co., Ltd.
- Embedded pattern generator25 Aug 2026US 12,719,459 B2Texas Instruments Incorporated
- Fractional frequency divider and flash memory controller21 Jul 2026US 12,687,914 B2Silicon Motion, Inc.
- Control system for LLC voltage converter using up-down counter configured to react to comparator output21 Jul 2026US 12,689,281 B2Texas Instruments Incorporated
- Systems, methods, and apparatus to support multiple synchronous clocks with a single clock mesh30 Jun 2026US 12,671,421 B1Marvell Asia Pte Ltd
- Methods and apparatus to determine a frequency of a signal20 Aug 2026US 2026/0246460 A1Texas Instruments Incorporated
- Programmable high-speed frequency divider23 Jul 2026US 2026/0213759 A1STMicroelectronics International N. V.
- Monitoring circuit, semiconductor integrated circuit device, and vehicle25 Jun 2026US 2026/0177608 A1Rohm Co., Ltd.
- Voltage droop mitigation during automotive electronics built in self test28 May 2026US 2026/0147039 A1QUALCOMM Incorporated
- Signal generation in and/or for radio9 Apr 2026US 2026/0100730 A1Cypress Semiconductor Corporation
Most cited
By later US patents
- Dividing circuit and phase locked loop using the same30US 7,843,239 B2Samsung Electronics Co., Ltd. · 2010
- Methods and apparatus for in-pixel filtering in focal plane arrays29US 8,605,853 B2Massachusetts Institute of Technology · 2013
- Dual PLL loop for phase noise filtering26US 7,978,012 B2Multigig Inc. · 2011
- Nonvolatile counter circuit24US 3,950,737 ATokyo Shibaura Electric Co., Ltd. · 1976
- Double data rate (DDR) counter, analog-to-digital converter (ADC) using the same, CMOS image sensor using the same and methods in DDR counter, ADC and CMOS image sensor23US 7,990,304 B2Samsung Electronics Co., Ltd. · 2011