DE3585593D1 - Digitales filter. - Google Patents
Digitales filter.Info
- Publication number
- DE3585593D1 DE3585593D1 DE8585308269T DE3585593T DE3585593D1 DE 3585593 D1 DE3585593 D1 DE 3585593D1 DE 8585308269 T DE8585308269 T DE 8585308269T DE 3585593 T DE3585593 T DE 3585593T DE 3585593 D1 DE3585593 D1 DE 3585593D1
- Authority
- DE
- Germany
- Prior art keywords
- digital
- signals
- digital signals
- circuit
- delayed
- Prior art date
- 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.)
- Expired - Lifetime
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H17/00—Networks using digital techniques
- H03H17/02—Frequency selective networks
- H03H17/0202—Two or more dimensional filters; Filters for complex signals
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Mathematical Physics (AREA)
- Picture Signal Circuits (AREA)
- Oscillators With Electromechanical Resonators (AREA)
- Gasification And Melting Of Waste (AREA)
- Networks Using Active Elements (AREA)
- Centrifugal Separators (AREA)
- Dry Shavers And Clippers (AREA)
- Filters That Use Time-Delay Elements (AREA)
- Complex Calculations (AREA)
- Processing Of Color Television Signals (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59240311A JP2544326B2 (ja) | 1984-11-14 | 1984-11-14 | ディジタルフィルタ |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3585593D1 true DE3585593D1 (de) | 1992-04-16 |
Family
ID=17057567
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8585308269T Expired - Lifetime DE3585593D1 (de) | 1984-11-14 | 1985-11-13 | Digitales filter. |
Country Status (6)
Country | Link |
---|---|
US (1) | US4862403A (de) |
EP (1) | EP0182602B1 (de) |
JP (1) | JP2544326B2 (de) |
AT (1) | ATE73588T1 (de) |
CA (1) | CA1266514A (de) |
DE (1) | DE3585593D1 (de) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5319451A (en) * | 1988-05-31 | 1994-06-07 | Canon Kabushiki Kaisha | Color signal processing apparatus using a common low pass filter for the luminance signal and the color signals |
JPH0225987A (ja) * | 1988-07-15 | 1990-01-29 | Fuji Xerox Co Ltd | 画像処理集積回路装置 |
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 |
US5280353A (en) * | 1989-08-15 | 1994-01-18 | Rank Cintel Limited | Method and apparatus for signal processing by interpolation and filtering with simultaneous frequency response compensation and offset generation |
US4984286A (en) * | 1989-12-12 | 1991-01-08 | Analogic Corporation | Spatial filter system |
JP2857292B2 (ja) * | 1991-12-18 | 1999-02-17 | ゼロックス コーポレイション | 2次元デジタルフィルタを実現するための装置 |
US5260888A (en) * | 1992-05-28 | 1993-11-09 | Eastman Kodak Company | Shift and add digital signal processor |
JP2885121B2 (ja) * | 1995-03-06 | 1999-04-19 | 日本電気株式会社 | ディジタルフィルタ |
US5751862A (en) * | 1996-05-08 | 1998-05-12 | Xerox Corporation | Self-timed two-dimensional filter |
US5835630A (en) * | 1996-05-08 | 1998-11-10 | Xerox Corporation | Modular time-varying two-dimensional filter |
US5892693A (en) | 1996-07-01 | 1999-04-06 | Sun Microsystems, Inc. | Signal interpolation and decimation exploiting filter symmetry |
US6256654B1 (en) * | 1996-07-01 | 2001-07-03 | Sun Microsystems, Inc. | Signal interpolation and decimation exploiting filter symmetry |
US5956666A (en) * | 1996-07-01 | 1999-09-21 | Sun Microsystems, Inc. | Signal interpolation and decimation exploiting filter symmetry |
JPH10149348A (ja) | 1996-07-01 | 1998-06-02 | Sun Microsyst Inc | フィルタ対称を使用した信号内挿及びデシメーション |
US6058404A (en) * | 1997-04-11 | 2000-05-02 | Texas Instruments Incorporated | Apparatus and method for a class of IIR/FIR filters |
US6711301B1 (en) * | 2000-01-31 | 2004-03-23 | Intel Corporation | Block-oriented pixel filter |
JP7005228B2 (ja) * | 2016-11-18 | 2022-01-21 | キヤノン株式会社 | 画像処理回路 |
US10572985B2 (en) | 2016-11-18 | 2020-02-25 | Canon Kabushiki Kaisha | Image processing circuit with multipliers allocated based on filter coefficients |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3521042A (en) * | 1967-07-19 | 1970-07-21 | Ibm | Simplified digital filter |
US4044241A (en) * | 1972-01-12 | 1977-08-23 | Esl Incorporated | Adaptive matched digital filter |
FR2276635A1 (fr) * | 1974-06-28 | 1976-01-23 | Jeumont Schneider | Multiplieur numerique rapide et ses applications |
US3949206A (en) * | 1974-12-17 | 1976-04-06 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Filtering device |
DE2521796C3 (de) * | 1975-05-16 | 1979-12-13 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Anordnung zur Ermittlung der räumlichen Verteilung der Absorption oder der Emission von Strahlung in einer Ebene eines Körpers |
JPS5934005B2 (ja) * | 1975-12-27 | 1984-08-20 | 富士通株式会社 | デジタル フイルタ |
US4121295A (en) * | 1977-04-07 | 1978-10-17 | Wittronics, Inc. | Integer weighted impulse equivalent coded signal processing apparatus |
JPS568915A (en) * | 1979-07-03 | 1981-01-29 | Victor Co Of Japan Ltd | Nonlinear distortion reducing circuit of digital filter |
JPS5741738A (en) * | 1980-08-22 | 1982-03-09 | Casio Comput Co Ltd | Digital multiplier |
JPS57182845A (en) * | 1981-05-08 | 1982-11-10 | Victor Co Of Japan Ltd | Digital multiplying circuit |
-
1984
- 1984-11-14 JP JP59240311A patent/JP2544326B2/ja not_active Expired - Lifetime
-
1985
- 1985-11-13 DE DE8585308269T patent/DE3585593D1/de not_active Expired - Lifetime
- 1985-11-13 CA CA000495214A patent/CA1266514A/en not_active Expired - Lifetime
- 1985-11-13 EP EP85308269A patent/EP0182602B1/de not_active Expired - Lifetime
- 1985-11-13 AT AT85308269T patent/ATE73588T1/de not_active IP Right Cessation
- 1985-11-14 US US06/797,845 patent/US4862403A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CA1266514A (en) | 1990-03-06 |
EP0182602B1 (de) | 1992-03-11 |
US4862403A (en) | 1989-08-29 |
JPS61118012A (ja) | 1986-06-05 |
ATE73588T1 (de) | 1992-03-15 |
EP0182602A2 (de) | 1986-05-28 |
EP0182602A3 (en) | 1987-09-02 |
JP2544326B2 (ja) | 1996-10-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |