DE69424790D1 - Prozessor für schnelle Fourier-Transformation - Google Patents
Prozessor für schnelle Fourier-TransformationInfo
- Publication number
- DE69424790D1 DE69424790D1 DE69424790T DE69424790T DE69424790D1 DE 69424790 D1 DE69424790 D1 DE 69424790D1 DE 69424790 T DE69424790 T DE 69424790T DE 69424790 T DE69424790 T DE 69424790T DE 69424790 D1 DE69424790 D1 DE 69424790D1
- Authority
- DE
- Germany
- Prior art keywords
- fourier transform
- fast fourier
- transform processor
- processor
- fast
- 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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
- G06F17/10—Complex mathematical operations
- G06F17/14—Fourier, Walsh or analogous domain transformations, e.g. Laplace, Hilbert, Karhunen-Loeve, transforms
- G06F17/141—Discrete Fourier transforms
- G06F17/142—Fast Fourier transforms, e.g. using a Cooley-Tukey type algorithm
Landscapes
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Computational Mathematics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Pure & Applied Mathematics (AREA)
- Data Mining & Analysis (AREA)
- Theoretical Computer Science (AREA)
- Discrete Mathematics (AREA)
- Algebra (AREA)
- Databases & Information Systems (AREA)
- Software Systems (AREA)
- General Engineering & Computer Science (AREA)
- Complex Calculations (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP94203235A EP0710915B1 (de) | 1994-11-07 | 1994-11-07 | Prozessor für schnelle Fourier-Transformation |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69424790D1 true DE69424790D1 (de) | 2000-07-06 |
DE69424790T2 DE69424790T2 (de) | 2000-12-28 |
Family
ID=8217353
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69424790T Expired - Lifetime DE69424790T2 (de) | 1994-11-07 | 1994-11-07 | Prozessor für schnelle Fourier-Transformation |
Country Status (5)
Country | Link |
---|---|
US (1) | US5633817A (de) |
EP (1) | EP0710915B1 (de) |
AU (1) | AU703643B2 (de) |
DE (1) | DE69424790T2 (de) |
ES (1) | ES2146245T3 (de) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6314102B1 (en) | 1997-07-10 | 2001-11-06 | Alcatel | Telecommunications system for providing both narrowband and broadband services to subscribers |
US5991787A (en) * | 1997-12-31 | 1999-11-23 | Intel Corporation | Reducing peak spectral error in inverse Fast Fourier Transform using MMX™ technology |
EP0942379A1 (de) | 1998-03-13 | 1999-09-15 | Alcatel | Pipelineprozessor für die schnelle Fourier-Transformation |
US6549925B1 (en) | 1998-05-18 | 2003-04-15 | Globespanvirata, Inc. | Circuit for computing a fast fourier transform |
US6490672B1 (en) | 1998-05-18 | 2002-12-03 | Globespanvirata, Inc. | Method for computing a fast fourier transform and associated circuit for addressing a data memory |
TW418362B (en) * | 1998-05-28 | 2001-01-11 | Ind Tech Res Inst | Fast fourier transform apparatus having parallel grid frame structure |
DE19844144C2 (de) * | 1998-09-25 | 2002-04-25 | Siemens Ag | Vorrichtung und Verfahren zum Durchführen einer komplexen Multiplikation eines Datenstroms mit zwei Scramblingcodes |
GB2384876A (en) * | 2002-01-31 | 2003-08-06 | Zarlink Semiconductor Inc | Simplifying a real fast Fourier transform using symmetry |
US6985919B2 (en) * | 2002-04-30 | 2006-01-10 | Industrial Technology Reseach Institute | Time-recursive lattice structure for IFFT in DMT application |
GB2388931B (en) * | 2002-05-25 | 2005-11-09 | Roke Manor Research | Digital signal processing system |
KR100492124B1 (ko) * | 2002-12-12 | 2005-06-02 | 삼성전자주식회사 | 구현이 간단한 고속 퓨리에 변환 장치를 가지는 유럽향디지털 오디오 방송 수신기 및 그의 동작방법 |
US20080071848A1 (en) * | 2006-09-14 | 2008-03-20 | Texas Instruments Incorporated | In-Place Radix-2 Butterfly Processor and Method |
US7675847B2 (en) | 2007-07-10 | 2010-03-09 | Wipro Limited | Hardware implementation of a programmable FFT based on a half length FFT core |
US20090172062A1 (en) * | 2007-12-31 | 2009-07-02 | Broadcom Corporation | Efficient fixed-point implementation of an fft |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3638004A (en) * | 1968-10-28 | 1972-01-25 | Time Data Corp | Fourier transform computer |
JPS597990B2 (ja) * | 1976-10-06 | 1984-02-22 | 日本電気株式会社 | N点離散的フ−リエ変換演算装置 |
US4117541A (en) * | 1977-11-07 | 1978-09-26 | Communications Satellite Corporation | Configurable parallel arithmetic structure for recursive digital filtering |
US4534009A (en) * | 1982-05-10 | 1985-08-06 | The United States Of America As Represented By The Secretary Of The Navy | Pipelined FFT processor |
US4612626A (en) * | 1983-12-27 | 1986-09-16 | Motorola Inc. | Method of performing real input fast fourier transforms simultaneously on two data streams |
US4970674A (en) * | 1988-03-10 | 1990-11-13 | Rockwell International Corporation | Programmable windowing FFT device with reduced memory requirements |
US5163017A (en) * | 1990-03-23 | 1992-11-10 | Texas Instruments Incorporated | Pipelined Fast Fourier Transform (FFT) architecture |
JPH0431965A (ja) * | 1990-05-28 | 1992-02-04 | Nec Corp | 数値演算装置 |
US5371696A (en) * | 1992-12-24 | 1994-12-06 | Sundararajan; Duraisamy | Computational structures for the fast Fourier transform analyzers |
-
1994
- 1994-11-07 ES ES94203235T patent/ES2146245T3/es not_active Expired - Lifetime
- 1994-11-07 DE DE69424790T patent/DE69424790T2/de not_active Expired - Lifetime
- 1994-11-07 EP EP94203235A patent/EP0710915B1/de not_active Expired - Lifetime
-
1995
- 1995-10-30 AU AU34508/95A patent/AU703643B2/en not_active Ceased
- 1995-11-03 US US08/552,916 patent/US5633817A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
AU703643B2 (en) | 1999-03-25 |
AU3450895A (en) | 1996-05-16 |
EP0710915B1 (de) | 2000-05-31 |
ES2146245T3 (es) | 2000-08-01 |
US5633817A (en) | 1997-05-27 |
EP0710915A1 (de) | 1996-05-08 |
DE69424790T2 (de) | 2000-12-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: ALCATEL LUCENT, PARIS, FR Owner name: ALCATEL N.V., RIJSWIJK, NL |