H03H 2017/0232
Canonical signed digit [csd] or power of 2 coefficients
Official title: {Canonical signed digit [CSD] or power of 2 coefficients}
H03H2017/0232 (Canonical signed digit [csd] or power of 2 coefficients) appears on 7 US grants and 4 published applications in this corpus.
Search patents in H03H- Granted patents
- 7
- Published applications
- 4
- Assignees
- 7
- Inventors
- 20
- Latest grant
- 23 May 2023
Filings by year
| Year | Granted patents | Published applications |
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| 1988 | 1 | 0 |
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| 2003 | 0 | 1 |
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| 2006 | 0 | 1 |
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| 2010 | 1 | 0 |
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| 2017 | 0 | 1 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Configurable multiplier-free multirate filter23 May 2023US 11,658,643 B2Raytheon Company
- Reducing crest factors7 Aug 2018US 10,044,543 B2Futurewei Technologies, Inc.
- Canonical signed digit (CSD) coefficient multiplier with optimization16 Mar 2010US 7,680,872 B2VIA Telecom Co., Ltd.
- Digital filter having a substantially equal number of negative and positive weighting factors27 Jul 1999US 5,928,314 AU. S. Philips Corporation
- Programmable canonic signed digit filter chip16 Nov 1993US 5,262,974 ATRW Inc.
- Configurable multiplier-free multirate filter21 Jul 2022US 2022/0231670 A1Raytheon Company
- Reducing crest factors2 Feb 2017US 2017/0033964 A1Futurewei Technologies, Inc.
- Canonical signed digit (CSD) coefficient multiplier with optimization13 Jul 2006US 2006/0155793 A1VIA Telecom Co., Ltd.
- Shared multiplication for constant and adaptive digital filters16 Oct 2003US 2003/0195913 A1
Most cited
By later US patents
- Programmable canonic signed digit filter chip45US 5,262,974 ATRW Inc. · 1993
- Architecture for power of two coefficient FIR filter15US 4,782,458 ANorth American Philips Corporation · 1988
- Digital filter having a substantially equal number of negative and positive weighting factors5US 5,928,314 AU. S. Philips Corporation · 1999
- Digital filter in which linear combinations of powers of two are converted to binary numbers using wallace trees3US 4,843,582 AU. S. Philips Corporation · 1989
- Reducing crest factors2US 10,044,543 B2Futurewei Technologies, Inc. · 2018