ES2111523T3 - Sistema y circuito para calcular una transformacion discreta bidimensional. - Google Patents

Sistema y circuito para calcular una transformacion discreta bidimensional.

Info

Publication number
ES2111523T3
ES2111523T3 ES90110138T ES90110138T ES2111523T3 ES 2111523 T3 ES2111523 T3 ES 2111523T3 ES 90110138 T ES90110138 T ES 90110138T ES 90110138 T ES90110138 T ES 90110138T ES 2111523 T3 ES2111523 T3 ES 2111523T3
Authority
ES
Spain
Prior art keywords
words
input
output
represented
data
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
Application number
ES90110138T
Other languages
English (en)
Inventor
Silvio Cucchi
Marco Fratti
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alcatel Lucent SAS
Original Assignee
Alcatel Alsthom Compagnie Generale dElectricite
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Alcatel Alsthom Compagnie Generale dElectricite filed Critical Alcatel Alsthom Compagnie Generale dElectricite
Application granted granted Critical
Publication of ES2111523T3 publication Critical patent/ES2111523T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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

Abstract

EL INVENTO ACTUAL SE REFIERE A UN SISTEMA PARA CALCULAR LA DCT DE LA DIMENSION M*M CON LA PROPIEDAD DE SER ORTOGONAL Y SEPARABLE BAJO LA FORMA DE DOS TRANSFORMADAS MONODIMENSIONALES CALCULADAS MEDIANTE UN ALGORITMO RAPIDO, POR LA OPERACION SOBRE LAS PALABRAS DE ENTRADA Y SALIDA, QUE ESTAN DISPUESTAS EN FORMA DE BITS PARALELOS, Y POR OPERACION SOBRE LOS DATOS INTERNOS AL SISTEMA SOBRE LAS PALABRAS REPRESENTADAS POR MEDIO DE 2 MBITS. DE ACUERDO A UNA CARACTERISTICA DEL INVENTO, LAS OPERACIONES DE SUMA Y RESTA ENTRE DATOS VARIABLES Y LAS OPERACIONES DE MULTIPLICACION MEDIANTE LOS DATOS VARIABLES QUE USAN COEFICIENTES FIJOS SE REALIZAN SOBRE LOS DATOS REPRESENTADOS EN LA FORMA DE PAREJAS M DE BITS SERIALIZADOS, DE FORMA QUE LA VELOCIDAD DE LAS PALABRAS DE ENTRADA Y SALIDA, EN FORMA DE PALABRAS POR BITS PARALELOS, SEA IGUAL A LA VELOCIDAD DE LAS PAREJAS DE BIT QUE REPRESENTAN LOS DATOS INTERNOS. UN CIRCUITO PUESTO EN EJECUCION SOBRE BASES DE SILICIO PARA LA EJECUCION DE ESTE SISTEMA INCLUYE AL MENOS: RA PALABRAS DE ENTRADA PARA LA CONVERSION DESDE LA FORMA DE BITS PARALELOS A LA FORMA DE PALABRAS REPRESENTADAS POR MEDIO DE PAREJAS DE BIT EN SERIE PARA LAS PALABRAS DE ENTRADA Y VICEVERSA PARA LAS PALABRAS DE SALIDA ANSFORMADA MONODIMENSIONAL DCT OLUMNAS. AL - UN DISPOSITIVO DE ESCALAMIENTO PARA PALABRAS DE SALIDA.
ES90110138T 1989-07-13 1990-05-29 Sistema y circuito para calcular una transformacion discreta bidimensional. Expired - Lifetime ES2111523T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT8921420U IT8921420V0 (it) 1989-07-13 1989-07-13 Sistema e circuito per il calcolo di trasformata discreta bidimensionale.

Publications (1)

Publication Number Publication Date
ES2111523T3 true ES2111523T3 (es) 1998-03-16

Family

ID=11181511

Family Applications (1)

Application Number Title Priority Date Filing Date
ES90110138T Expired - Lifetime ES2111523T3 (es) 1989-07-13 1990-05-29 Sistema y circuito para calcular una transformacion discreta bidimensional.

Country Status (6)

Country Link
US (1) US5197021A (es)
EP (1) EP0412252B1 (es)
JP (1) JPH03165192A (es)
DE (1) DE69031674T2 (es)
ES (1) ES2111523T3 (es)
IT (1) IT8921420V0 (es)

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US6336180B1 (en) 1997-04-30 2002-01-01 Canon Kabushiki Kaisha Method, apparatus and system for managing virtual memory with virtual-physical mapping
US5664028A (en) * 1990-04-19 1997-09-02 Ricoh Corporation Apparatus and method for compressing still images
US5319724A (en) * 1990-04-19 1994-06-07 Ricoh Corporation Apparatus and method for compressing still images
FR2680259A1 (fr) * 1991-10-09 1993-02-12 Ricoh Kk Appareil et procede de compression d'image.
US5410500A (en) * 1992-02-21 1995-04-25 Sony Corporation Discrete cosine transform apparatus and inverse discrete cosine transform apparatus
US5313579A (en) * 1992-06-04 1994-05-17 Bell Communications Research, Inc. B-ISDN sequencer chip device
US5654910A (en) * 1992-08-26 1997-08-05 Sony Corporation Processing method and apparatus for performing 4 ×4 discrete cosine transformation or inverse discrete cosing transformation
US5420811A (en) * 1992-08-26 1995-05-30 Sony Corporation Simple quick image processing apparatus for performing a discrete cosine transformation or an inverse discrete cosine transformation
JPH06103301A (ja) * 1992-09-17 1994-04-15 Sony Corp ８ｘ８離散コサイン変換回路および８ｘ８離散コサイン逆変換回路
JPH06149862A (ja) * 1992-11-13 1994-05-31 Sony Corp 行列データ乗算方法及び行列データ乗算装置
US5345408A (en) * 1993-04-19 1994-09-06 Gi Corporation Inverse discrete cosine transform processor
GB2302421B (en) * 1995-03-18 1999-11-03 United Microelectronics Corp Apparatus for two-dimensional inverse discrete cosine transform
US5671169A (en) * 1995-06-23 1997-09-23 United Microelectronics Corporation Apparatus for two-dimensional inverse discrete cosine transform
US5867601A (en) * 1995-10-20 1999-02-02 Matsushita Electric Corporation Of America Inverse discrete cosine transform processor using parallel processing
US5805482A (en) * 1995-10-20 1998-09-08 Matsushita Electric Corporation Of America Inverse discrete cosine transform processor having optimum input structure
US5801979A (en) * 1995-10-20 1998-09-01 Matsushita Electric Corporation Of America Carry logic that produces a carry value from NLSBs for a ROM accumulator in an inverse discrete cosine transform processor
AUPO648397A0 (en) 1997-04-30 1997-05-22 Canon Information Systems Research Australia Pty Ltd Improvements in multiprocessor architecture operation
US6707463B1 (en) 1997-04-30 2004-03-16 Canon Kabushiki Kaisha Data normalization technique
US6414687B1 (en) 1997-04-30 2002-07-02 Canon Kabushiki Kaisha Register setting-micro programming system
AUPO647997A0 (en) * 1997-04-30 1997-05-22 Canon Information Systems Research Australia Pty Ltd Memory controller architecture
US6272257B1 (en) 1997-04-30 2001-08-07 Canon Kabushiki Kaisha Decoder of variable length codes
US6289138B1 (en) 1997-04-30 2001-09-11 Canon Kabushiki Kaisha General image processor
US6061749A (en) * 1997-04-30 2000-05-09 Canon Kabushiki Kaisha Transformation of a first dataword received from a FIFO into an input register and subsequent dataword from the FIFO into a normalized output dataword
US6499045B1 (en) * 1999-10-21 2002-12-24 Xilinx, Inc. Implementation of a two-dimensional wavelet transform
US6684235B1 (en) 2000-11-28 2004-01-27 Xilinx, Inc. One-dimensional wavelet system and method
JP3830497B2 (ja) 2004-06-11 2006-10-04 シャープ株式会社 半導体ウエハの製造方法及び半導体装置の製造方法
GB2452103B (en) * 2007-01-05 2011-08-31 Arthrocare Corp Electrosurgical system with suction control apparatus and system
US8654833B2 (en) * 2007-09-26 2014-02-18 Qualcomm Incorporated Efficient transformation techniques for video coding

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4196448A (en) * 1978-05-15 1980-04-01 The United States Of America As Represented By The Secretary Of The Navy TV bandwidth reduction system using a hybrid discrete cosine DPCM
US4385363A (en) * 1978-12-15 1983-05-24 Compression Labs, Inc. Discrete cosine transformer
US4293920A (en) * 1979-09-04 1981-10-06 Merola Pasquale A Two-dimensional transform processor
US4449194A (en) * 1981-09-25 1984-05-15 Motorola Inc. Multiple point, discrete cosine processor
FR2561011B1 (fr) * 1984-03-09 1986-09-12 Cit Alcatel Processeur de calcul d'une transformee discrete inverse du cosinus
IT1207346B (it) * 1987-01-20 1989-05-17 Cselt Centro Studi Lab Telecom Sformata coseno discreta a coeffi circuito per il calcolo della tra cienti quantizzati di campioni di segnale numerico
US4791598A (en) * 1987-03-24 1988-12-13 Bell Communications Research, Inc. Two-dimensional discrete cosine transform processor

Also Published As

Publication number Publication date
JPH03165192A (ja) 1991-07-17
IT8921420V0 (it) 1989-07-13
DE69031674T2 (de) 1998-06-10
EP0412252A3 (en) 1991-07-31
DE69031674D1 (de) 1997-12-11
EP0412252B1 (en) 1997-11-05
US5197021A (en) 1993-03-23
EP0412252A2 (en) 1991-02-13

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