DE3777795D1 - Integrierter schaltkreis fuer digitalsignalverarbeitung. - Google Patents
Integrierter schaltkreis fuer digitalsignalverarbeitung.Info
- Publication number
- DE3777795D1 DE3777795D1 DE8787402909T DE3777795T DE3777795D1 DE 3777795 D1 DE3777795 D1 DE 3777795D1 DE 8787402909 T DE8787402909 T DE 8787402909T DE 3777795 T DE3777795 T DE 3777795T DE 3777795 D1 DE3777795 D1 DE 3777795D1
- Authority
- DE
- Germany
- Prior art keywords
- integrated circuit
- signal processing
- digital signal
- digital
- integrated
- 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 - Fee Related
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
- G06F17/147—Discrete orthonormal transforms, e.g. discrete cosine transform, discrete sine transform, and variations therefrom, e.g. modified discrete cosine transform, integer transforms approximating the discrete cosine transform
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8617936A FR2608808B1 (fr) | 1986-12-22 | 1986-12-22 | Circuit integre de traitement numerique de signaux |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3777795D1 true DE3777795D1 (de) | 1992-04-30 |
Family
ID=9342151
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8787402909T Expired - Fee Related DE3777795D1 (de) | 1986-12-22 | 1987-12-18 | Integrierter schaltkreis fuer digitalsignalverarbeitung. |
Country Status (5)
Country | Link |
---|---|
US (2) | US4873658A (de) |
EP (1) | EP0275765B1 (de) |
JP (1) | JP2679007B2 (de) |
DE (1) | DE3777795D1 (de) |
FR (1) | FR2608808B1 (de) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0366435B1 (de) * | 1988-10-27 | 1998-12-23 | Matsushita Electric Industrial Co., Ltd. | Gerät für die direkte oder umgekehrte orthogonale Transformation |
US5196930A (en) * | 1990-07-20 | 1993-03-23 | Matsushita Electric Industrial Co., Ltd. | High efficienccy coding and decoding apparatus for lowering transmission or recording rate of transmitted or recorded video signal without reducing picture quality |
US5343501A (en) * | 1991-02-19 | 1994-08-30 | Matsushita Electric Industrial Co., Ltd. | Orthogonal transform apparatus for video signal processing |
US5818742A (en) * | 1991-06-24 | 1998-10-06 | Atmel Corporation | Apparatus to transform time to frequency and frequency to time of data signals |
US5258941A (en) * | 1991-12-13 | 1993-11-02 | Edward Newberger | Apparatus for utilizing a discrete fourier transformer to implement a discrete cosine transformer |
KR950012306B1 (ko) * | 1993-03-25 | 1995-10-16 | 삼성전자주식회사 | 디지탈 정보전달 버스구조 및 디지탈 정보전달방법 |
JP3697717B2 (ja) * | 1993-09-24 | 2005-09-21 | ソニー株式会社 | 2次元離散コサイン変換装置および2次元逆離散コサイン変換装置 |
US5471412A (en) * | 1993-10-27 | 1995-11-28 | Winbond Electronic Corp. | Recycling and parallel processing method and apparatus for performing discrete cosine transform and its inverse |
US5825420A (en) * | 1994-05-06 | 1998-10-20 | National Science Council | Processor for performing two-dimensional inverse discrete cosine transform |
DE4442956C2 (de) * | 1994-12-02 | 2001-04-26 | Sican Gmbh | Schaltungsanordnung zur wahlweisen Berechnung sowohl einer DCT als auch einer IDCT |
US5831881A (en) * | 1994-12-02 | 1998-11-03 | Sican Gmbh | Method and circuit for forward/inverse discrete cosine transform (DCT/IDCT) |
KR20010023031A (ko) * | 1997-08-25 | 2001-03-26 | 밀러 럿셀 비 | 가변 블록 사이즈의 2-차원 역 이산 코사인 변환 엔진 |
JP3749022B2 (ja) * | 1997-09-12 | 2006-02-22 | シャープ株式会社 | 高速フーリエ変換を用いて短い待ち時間でアレイ処理を行う並列システム |
US6295320B1 (en) * | 1997-12-31 | 2001-09-25 | Lg Electronics Inc. | Inverse discrete cosine transforming system for digital television receiver |
FR2834362A1 (fr) * | 2001-12-28 | 2003-07-04 | Koninkl Philips Electronics Nv | Dispositif de transformation inverse adaptatif |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3588460A (en) * | 1968-07-01 | 1971-06-28 | Bell Telephone Labor Inc | Fast fourier transform processor |
US3673399A (en) * | 1970-05-28 | 1972-06-27 | Ibm | Fft processor with unique addressing |
US3702393A (en) * | 1970-10-21 | 1972-11-07 | Bell Telephone Labor Inc | Cascade digital fast fourier analyzer |
US3721812A (en) * | 1971-03-29 | 1973-03-20 | Interstate Electronics Corp | Fast fourier transform computer and method for simultaneously processing two independent sets of data |
US3731284A (en) * | 1971-12-27 | 1973-05-01 | Bell Telephone Labor Inc | Method and apparatus for reordering data |
US3892956A (en) * | 1971-12-27 | 1975-07-01 | Bell Telephone Labor Inc | Cascade digital fast fourier analyzer |
US4385363A (en) * | 1978-12-15 | 1983-05-24 | Compression Labs, Inc. | Discrete cosine transformer |
US4298950A (en) * | 1979-10-12 | 1981-11-03 | Westinghouse Electric Corp. | Multipoint pipeline processor for computing the discrete fourier transform |
JPS5887655A (ja) * | 1981-11-20 | 1983-05-25 | Asahi Chem Ind Co Ltd | パイプライン高速フ−リエ変換装置 |
US4601006A (en) * | 1983-10-06 | 1986-07-15 | Research Corporation | Architecture for two dimensional fast fourier transform |
US5093775A (en) * | 1983-11-07 | 1992-03-03 | Digital Equipment Corporation | Microcode control system for digital data processing system |
US4748579A (en) * | 1985-08-14 | 1988-05-31 | Gte Laboratories Incorporated | Method and circuit for performing discrete transforms |
-
1986
- 1986-12-22 FR FR8617936A patent/FR2608808B1/fr not_active Expired
-
1987
- 1987-12-18 EP EP87402909A patent/EP0275765B1/de not_active Expired - Lifetime
- 1987-12-18 DE DE8787402909T patent/DE3777795D1/de not_active Expired - Fee Related
- 1987-12-21 US US07/135,266 patent/US4873658A/en not_active Ceased
- 1987-12-22 JP JP62325135A patent/JP2679007B2/ja not_active Expired - Lifetime
-
1991
- 1991-10-10 US US07/774,322 patent/USRE34734E/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
USRE34734E (en) | 1994-09-20 |
JP2679007B2 (ja) | 1997-11-19 |
FR2608808B1 (fr) | 1989-04-28 |
JPS63167967A (ja) | 1988-07-12 |
EP0275765B1 (de) | 1992-03-25 |
EP0275765A1 (de) | 1988-07-27 |
US4873658A (en) | 1989-10-10 |
FR2608808A1 (fr) | 1988-06-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |