H03K 23/54
Ring counters, i.e. feedback shift register counters
Official title: Ring counters, i.e. feedback shift register counters (H03K23/52 takes precedence)
H03K23/54 (Ring counters, i.e. feedback shift register counters) appears on 243 US grants and 168 published applications in this corpus.
Search patents in H03K- Granted patents
- 243
- Published applications
- 168
- Assignees
- 143
- Inventors
- 408
- Latest grant
- 10 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 4 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 5 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 12 | 0 |
| 2001 | 8 | 0 |
| 2002 | 4 | 5 |
| 2003 | 9 | 7 |
| 2004 | 10 | 6 |
| 2005 | 9 | 10 |
| 2006 | 15 | 13 |
| 2007 | 9 | 12 |
| 2008 | 7 | 9 |
| 2009 | 9 | 12 |
| 2010 | 12 | 13 |
| 2011 | 14 | 14 |
| 2012 | 13 | 9 |
| 2013 | 10 | 6 |
| 2014 | 6 | 4 |
| 2015 | 10 | 8 |
| 2016 | 3 | 5 |
| 2017 | 5 | 4 |
| 2018 | 5 | 4 |
| 2019 | 7 | 5 |
| 2020 | 2 | 4 |
| 2021 | 6 | 5 |
| 2022 | 4 | 3 |
| 2023 | 3 | 1 |
| 2024 | 3 | 3 |
| 2025 | 2 | 3 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Programmable clock divider for radio frequency (RF) mixers10 Mar 2026US 12,574,199 B2QUALCOMM Incorporated
- NP5 fractional clock divider13 Jan 2026US 12,524,035 B2QUALCOMM Incorporated
- Integrated circuit, method for synchronizing clocks therefor and electronic device18 Feb 2025US 12,231,131 B2Beijing BOE Technology Development Co., Ltd.
- Network entities, methods, apparatuses and communications networks for authenticating an event7 Jan 2025US 12,192,758 B2Telefonaktiebolaget LM Ericsson (publ)
- Integrating analog-to-digital converter and semiconductor device16 Jul 2024US 12,040,813 B2Renesas Electronics Corporation
- Photodetection device and counter circuit30 Jul 2026US 2026/0222709 A1Sony Semiconductor Solutions Corporation
- Divider circuit28 May 2026US 2026/0149453 A1NXP B. V.
- Semiconductor device16 Apr 2026US 2026/0106607 A1Renesas Electronics Corporation
- Primitive Polynomial-based Multi-bit Linear-feedback Shift Register (LFSR) Counter27 Nov 2025US 2025/0362880 A1Microsoft Technology Licensing, LLC
- Np5 fractional clock divider17 Apr 2025US 2025/0123650 A1QUALCOMM Incorporated
Most cited
By later US patents
- Divide-by-N differential phase interpolator77US 6,597,212 B1Neoaxiom Corporation · 2003
- High speed digital programmable frequency divider76US 4,951,303 A1990
- Programmable logic device having a plurality of programmable logic arrays arranged in a mosaic layout together with a plurality of interminglingly arranged interfacing blocks72US 4,992,680 ASGS-Thomson Microelectronics S.A. · 1991
- Internal clock signal generating circuit having function of generating internal clock signals which are multiplication of an external clock signal54US 6,292,040 B1Mitsubishi Denki Kabushiki Kaisha · 2001
- Delay lock loop circuit useful in a synchronous system and associated methods53US 6,680,874 B1Micron Technology, Inc. · 2004