H03H 2220/00
Indexing scheme relating to structures of digital filters
H03H2220/00 (Indexing scheme relating to structures of digital filters) appears on 44 US grants and 36 published applications in this corpus.
Search patents in H03H- Granted patents
- 44
- Published applications
- 36
- Assignees
- 37
- Inventors
- 75
- Latest grant
- 24 Dec 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 1 | 5 |
| 2007 | 2 | 1 |
| 2008 | 2 | 5 |
| 2009 | 1 | 1 |
| 2010 | 3 | 4 |
| 2011 | 2 | 2 |
| 2012 | 2 | 3 |
| 2013 | 7 | 2 |
| 2014 | 3 | 2 |
| 2015 | 3 | 3 |
| 2016 | 3 | 4 |
| 2017 | 6 | 1 |
| 2018 | 3 | 0 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 2 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Digital filter circuit, measurement instrument, and signal processing24 Dec 2024US 12,176,875 B2Rohde & Schwarz GmbH & Co.KG
- Digital filter with a pipeline structure operating in multiple clock domains, and a corresponding device28 May 2019US 10,303,201 B2STMicroelectronics S,r.l.
- Digital signal processing blocks with embedded arithmetic circuits16 Oct 2018US 10,101,966 B1Altera Corporation
- Optimizing processor operation in a processing system including one or more digital filters22 May 2018US 9,979,380 B2Micro Motion, Inc.
- Pipelined systolic finite impulse response filter8 May 2018US 9,966,933 B1Altera Corporation
- FPGA-Based Parallel Equalization Method10 Aug 2023US 2023/0251973 A1Hangzhou Dianzi University
- Digital filter circuit, measurement instrument, and signal processing method12 Jan 2023US 2023/0010278 A1Rohde & Schwarz GmbH & Co.KG
- Digital filter with a pipeline structure, and a corresponding device20 Jul 2017US 2017/0207771 A1STMicroelectronics S,r.l.
- Resource-saving circuit structures for deeply pipelined systolic finite impulse response filters24 Nov 2016US 2016/0344373 A1Altera Corporation
- Optimal Factoring of FIR Filters3 Nov 2016US 2016/0322958 A1
Most cited
By later US patents
- Modular digital signal processing circuitry with optionally usable, dedicated connections between modules of the circuitry31US 8,751,551 B2Altera Corporation · 2014
- Specialized processing block for programmable logic device30US 7,836,117 B1Altera Corporation · 2010
- Advanced periodic signal enhancement25US 7,716,046 B2QNX Software Systems (Wavemakers), Inc. · 2010
- Digital signal processing blocks with embedded arithmetic circuits19US 9,207,908 B1Altera Corporation · 2015
- Systolic de-multiplexed finite impulse response filter array architecture for linear and non-linear implementations18US 7,480,689 B2Massachusetts Institute of Technology · 2009