JP2003510876A5 - - Google Patents
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- Publication number
- JP2003510876A5 JP2003510876A5 JP2001525841A JP2001525841A JP2003510876A5 JP 2003510876 A5 JP2003510876 A5 JP 2003510876A5 JP 2001525841 A JP2001525841 A JP 2001525841A JP 2001525841 A JP2001525841 A JP 2001525841A JP 2003510876 A5 JP2003510876 A5 JP 2003510876A5
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- JP
- Japan
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/400,700 | 1999-09-20 | ||
| US09/400,700 US6505221B1 (en) | 1999-09-20 | 1999-09-20 | FIR filter utilizing programmable shifter |
| PCT/US2000/022826 WO2001022582A1 (en) | 1999-09-20 | 2000-08-18 | Fir filter utilizing programmable shifter |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2003510876A JP2003510876A (ja) | 2003-03-18 |
| JP2003510876A5 true JP2003510876A5 (enExample) | 2010-12-16 |
| JP4729685B2 JP4729685B2 (ja) | 2011-07-20 |
Family
ID=23584655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001525841A Expired - Fee Related JP4729685B2 (ja) | 1999-09-20 | 2000-08-18 | プログラマブルシフタを使用するｆｉｒフィルタ |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6505221B1 (enExample) |
| EP (1) | EP1131887A1 (enExample) |
| JP (1) | JP4729685B2 (enExample) |
| WO (1) | WO2001022582A1 (enExample) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6112218A (en) * | 1998-03-30 | 2000-08-29 | Texas Instruments Incorporated | Digital filter with efficient quantization circuitry |
| EP1298799B1 (en) * | 2001-09-28 | 2007-03-07 | Sony Deutschland GmbH | Digital filter realization |
| US7024441B2 (en) * | 2001-10-03 | 2006-04-04 | Intel Corporation | Performance optimized approach for efficient numerical computations |
| DE10250555A1 (de) * | 2002-10-30 | 2004-05-19 | Philips Intellectual Property & Standards Gmbh | Verfahren zur Ermittlung von Filterköffizienten eines digitalen Filters und digitales Filter |
| JP3755602B2 (ja) * | 2003-03-04 | 2006-03-15 | ソニー株式会社 | 信号処理装置、信用処理装置用プログラム、信号処理装置用プログラムを記録した記録媒体、及び信号処理方法 |
| US7680872B2 (en) * | 2005-01-11 | 2010-03-16 | Via Telecom Co., Ltd. | Canonical signed digit (CSD) coefficient multiplier with optimization |
| CN101233686A (zh) * | 2005-07-29 | 2008-07-30 | Nxp股份有限公司 | 数字滤波器 |
| US20080071846A1 (en) * | 2006-09-14 | 2008-03-20 | Texas Instruments Incorporated | Processor Architecture for Programmable Digital Filters in a Multi-Standard Integrated Circuit |
| US20090164544A1 (en) * | 2007-12-19 | 2009-06-25 | Jeffrey Dobbek | Dynamic range enhancement for arithmetic calculations in real-time control systems using fixed point hardware |
| US8280941B2 (en) * | 2007-12-19 | 2012-10-02 | HGST Netherlands B.V. | Method and system for performing calculations using fixed point microprocessor hardware |
| US20090300089A1 (en) * | 2008-05-29 | 2009-12-03 | Himax Technologies Limited | Finite impulse response filter and method |
| JP5287226B2 (ja) * | 2008-12-25 | 2013-09-11 | ペンタックスリコーイメージング株式会社 | 撮像装置 |
| JP5262693B2 (ja) * | 2008-12-25 | 2013-08-14 | ペンタックスリコーイメージング株式会社 | 撮像装置 |
| JP5191879B2 (ja) * | 2008-12-25 | 2013-05-08 | ペンタックスリコーイメージング株式会社 | 撮像装置 |
| US8768997B2 (en) * | 2009-02-05 | 2014-07-01 | Qualcomm Incorporated | Passive switched-capacitor filters conforming to power constraint |
| US9148168B2 (en) | 2013-10-29 | 2015-09-29 | Analog Devices Global | System and method of improving stability of continuous-time delta-sigma modulators |
| US10083007B2 (en) * | 2016-09-15 | 2018-09-25 | Altera Corporation | Fast filtering |
| KR101878400B1 (ko) * | 2017-02-06 | 2018-07-13 | 울산과학기술원 | 근사연산을 이용한 fir필터 연산방법 |
| EP3471271A1 (en) * | 2017-10-16 | 2019-04-17 | Acoustical Beauty | Improved convolutions of digital signals using a bit requirement optimization of a target digital signal |
| WO2021124413A1 (ja) * | 2019-12-16 | 2021-06-24 | 三菱電機株式会社 | フィルタ装置 |
Family Cites Families (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7905332A (nl) | 1979-07-09 | 1981-01-13 | Philips Nv | Decimerend, lineair phase, digital fir filter. |
| US4369499A (en) | 1980-09-18 | 1983-01-18 | Codex Corporation | Linear phase digital filter |
| US4494214A (en) | 1983-02-03 | 1985-01-15 | Rca Corporation | Apparatus for generating scaled weighting coefficients for sampled data filters |
| US4615026A (en) | 1984-01-20 | 1986-09-30 | Rca Corporation | Digital FIR filters with enhanced tap weight resolution |
| JPS6165616A (ja) | 1984-09-07 | 1986-04-04 | Nippon Hoso Kyokai <Nhk> | 対称形ｆｉｒディジタルフィルタ |
| US4862402A (en) | 1986-07-24 | 1989-08-29 | North American Philips Corporation | Fast multiplierless architecture for general purpose VLSI FIR digital filters with minimized hardware |
| US4791597A (en) | 1986-10-27 | 1988-12-13 | North American Philips Corporation | Multiplierless FIR digital filter with two to the Nth power coefficients |
| US4782458A (en) | 1986-12-18 | 1988-11-01 | North American Philips Corporation | Architecture for power of two coefficient FIR filter |
| US4843581A (en) * | 1987-05-11 | 1989-06-27 | American Telephone And Telegraph Company | Digital signal processor architecture |
| JPH07109974B2 (ja) * | 1989-04-22 | 1995-11-22 | 富士ゼロックス株式会社 | ディジタルフィルタ処理装置 |
| US5128886A (en) | 1989-07-14 | 1992-07-07 | Tektronix, Inc. | Using long distance filters in the presence of round-off errors |
| JPH03211910A (ja) * | 1990-01-17 | 1991-09-17 | Hitachi Ltd | ディジタルフィルタ |
| JPH0449708A (ja) * | 1990-06-18 | 1992-02-19 | Nec Corp | Ｆｉｒフィルタ回路 |
| US5233549A (en) | 1992-04-21 | 1993-08-03 | Loral Aerospace Corp. | Reduced quantization error FIR filter |
| US5268877A (en) | 1992-05-11 | 1993-12-07 | The United States Of America As Represented By The Secretary Of The Navy | Digital beamforming and filtering circuit |
| JP3140853B2 (ja) * | 1992-08-06 | 2001-03-05 | シャープ株式会社 | データ駆動型フィルタ装置 |
| US5483552A (en) | 1992-10-27 | 1996-01-09 | Matsushita Electric Industrial Co., Ltd. | Adaptive equalizing apparatus for controlling the input signal level of quantized feedback |
| US5353026A (en) | 1992-12-15 | 1994-10-04 | Analog Devices, Inc. | Fir filter with quantized coefficients and coefficient quantization method |
| US5479454A (en) * | 1993-09-21 | 1995-12-26 | Genesis Microchip Inc. | Digital filter with improved numerical precision |
| JP2541128B2 (ja) | 1993-11-16 | 1996-10-09 | 日本電気株式会社 | マルチキャリアロ―ルオフフィルタ |
| EP0791242B1 (en) * | 1995-09-07 | 2000-12-06 | Koninklijke Philips Electronics N.V. | Improved digital filter |
| KR100248021B1 (ko) | 1995-09-30 | 2000-03-15 | 윤종용 | Csd 필터의 신호처리방법과 그 회로 |
| US5777914A (en) | 1996-08-29 | 1998-07-07 | Lucent Technologies Inc. | Technique for reducing power consumption in digital filters |
| US6301596B1 (en) * | 1999-04-01 | 2001-10-09 | Ati International Srl | Partial sum filter and method therefore |
-
1999
- 1999-09-20 US US09/400,700 patent/US6505221B1/en not_active Expired - Lifetime
-
2000
- 2000-08-18 WO PCT/US2000/022826 patent/WO2001022582A1/en not_active Ceased
- 2000-08-18 JP JP2001525841A patent/JP4729685B2/ja not_active Expired - Fee Related
- 2000-08-18 EP EP00955743A patent/EP1131887A1/en not_active Withdrawn