H03K 23/00
Pulse counters comprising counting chains
Official title: Pulse counters comprising counting chains; Frequency dividers comprising counting chains (H03K29/00 takes precedence)
H03K23/00 (Pulse counters comprising counting chains) appears on 1,547 US grants and 893 published applications in this corpus.
Search patents in H03K- Granted patents
- 1,547
- Published applications
- 893
- Assignees
- 579
- Inventors
- 2,298
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 32 | 0 |
| 1977 | 29 | 0 |
| 1978 | 22 | 0 |
| 1979 | 9 | 0 |
| 1980 | 16 | 0 |
| 1981 | 16 | 0 |
| 1982 | 23 | 0 |
| 1983 | 24 | 0 |
| 1984 | 18 | 0 |
| 1985 | 20 | 0 |
| 1986 | 26 | 0 |
| 1987 | 23 | 0 |
| 1988 | 12 | 0 |
| 1989 | 14 | 0 |
| 1990 | 17 | 0 |
| 1991 | 19 | 0 |
| 1992 | 13 | 0 |
| 1993 | 21 | 0 |
| 1994 | 21 | 0 |
| 1995 | 13 | 0 |
| 1996 | 30 | 0 |
| 1997 | 18 | 0 |
| 1998 | 25 | 0 |
| 1999 | 27 | 0 |
| 2000 | 45 | 0 |
| 2001 | 22 | 6 |
| 2002 | 39 | 29 |
| 2003 | 36 | 35 |
| 2004 | 43 | 39 |
| 2005 | 48 | 44 |
| 2006 | 50 | 44 |
| 2007 | 50 | 45 |
| 2008 | 28 | 52 |
| 2009 | 49 | 50 |
| 2010 | 43 | 52 |
| 2011 | 53 | 51 |
| 2012 | 51 | 35 |
| 2013 | 46 | 38 |
| 2014 | 54 | 33 |
| 2015 | 42 | 43 |
| 2016 | 42 | 42 |
| 2017 | 43 | 27 |
| 2018 | 27 | 29 |
| 2019 | 46 | 31 |
| 2020 | 43 | 36 |
| 2021 | 32 | 32 |
| 2022 | 40 | 31 |
| 2023 | 32 | 22 |
| 2024 | 22 | 15 |
| 2025 | 21 | 18 |
| 2026 | 12 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H03K 23/64Pulse counters comprising counting chains: with a base or radix other than794
- H03K 23/40Gating or clocking signals applied to all stages, i.e. synchronous counters600
- H03K 23/004Counters counting in a non-natural counting order121
- H03K 23/58Gating or clocking signals not applied to all stages, i.e. asynchronous counters119
- H03K 23/002Pulse counters comprising counting chains: using semiconductor devices32
- H03K 23/76Pulse counters comprising counting chains: using magnetic cores or ferro-electric capacitors12
- H03K 23/86Reversible7
- H03K 23/001Pulse counters comprising counting chains: using elements not covered by groups h03k23/0024
All 13 subgroupsShow fewer
- H03K 23/78Pulse counters comprising counting chains: using opto-electronic devices3
- H03K 23/74Pulse counters comprising counting chains: using relays1
- H03K 23/80Pulse counters comprising counting chains: using semiconductor devices having only two electrodes1
- H03K 23/82Pulse counters comprising counting chains: using gas-filled tubes0
- H03K 23/84Pulse counters comprising counting chains: using thyristors or unijunction transistors0
Recent patents
- Systems and methods for realizing high-speed low-power wireline transceivers15 Sep 2026US 12,738,944 B2Sharif University of Technology
- Fractional frequency-divider circuit11 Aug 2026US 12,706,610 B2Apple Inc.
- Bidirectional counter and integrated circuit including the same28 Jul 2026US 12,695,456 B2Research & Business Foundation Sungkyunkwan University
- Charge domain mathematical engine and method21 Jul 2026US 12,688,406 B2
- Semiconductor device, method for controlling the semiconductor device, and control program16 Jun 2026US 12,659,615 B2Renesas Electronics Corporation
- Multiphase voltage regulation circuit having interleaved clock control mechanism10 Sep 2026US 2026/0269729 A1Anpec Electronics Corporation
- Photodetection device and counter circuit30 Jul 2026US 2026/0222709 A1Sony Semiconductor Solutions Corporation
- Systems and methods for realizing high-speed low-power wireline transceivers23 Jul 2026US 2026/0213753 A1Sharif University of Technology
- Programmable high-speed frequency divider23 Jul 2026US 2026/0213759 A1STMicroelectronics International N. V.
- Fractional divider calibration with dual digital control delay circuits18 Jun 2026US 2026/0172038 A1Renesas Electronics America Inc.
Most cited
By later US patents
- Monolithic PC audio circuit with enhanced digital wavetable audio synthesizer266US 5,659,466 AAdvanced Micro Devices, Inc. · 1997
- Charge dissipation in capacitively loaded ports191US 5,546,039 AAdvanced Micro Devices, Inc. · 1996
- Multiple clock frequency divider with fifty percent duty cycle output133US 5,914,996 AIntel Corporation · 1999
- Digital wavetable audio synthesizer with delay-based effects processing131US 6,047,073 AAdvanced Micro Devices, Inc. · 2000
- Delta-sigma ADC with multi-stage decimation filter and gain compensation filter122US 5,646,621 AAdvanced Micro Devices, Inc. · 1997