ES2083445T3 - Circuito diezmador de varios canales. - Google Patents

Circuito diezmador de varios canales.

Info

Publication number
ES2083445T3
ES2083445T3 ES90870154T ES90870154T ES2083445T3 ES 2083445 T3 ES2083445 T3 ES 2083445T3 ES 90870154 T ES90870154 T ES 90870154T ES 90870154 T ES90870154 T ES 90870154T ES 2083445 T3 ES2083445 T3 ES 2083445T3
Authority
ES
Spain
Prior art keywords
roms
coefficients
channel
multipliers
coupled
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
ES90870154T
Other languages
English (en)
Inventor
Joannes Mathilda Jos Sevenhans
Peter Paul Frans Reusens
Lajos Kiss
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 NV
Original Assignee
Alcatel NV
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 NV filed Critical Alcatel NV
Application granted granted Critical
Publication of ES2083445T3 publication Critical patent/ES2083445T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H03H17/06—Non-recursive filters
    • H03H17/0607—Non-recursive filters comprising a ROM addressed by the input data signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/06—Non-recursive filters
    • H03H17/0621—Non-recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/06—Non-recursive filters
    • H03H17/0621—Non-recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing
    • H03H17/0635—Non-recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing characterized by the ratio between the input-sampling and output-delivery frequencies
    • H03H17/065—Non-recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing characterized by the ratio between the input-sampling and output-delivery frequencies the ratio being integer
    • H03H17/0664—Non-recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing characterized by the ratio between the input-sampling and output-delivery frequencies the ratio being integer where the output-delivery frequency is lower than the input sampling frequency, i.e. decimation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H2218/00—Indexing scheme relating to details of digital filters
    • H03H2218/06—Multiple-input, multiple-output [MIMO]; Multiple-input, single-output [MISO]

Abstract

UN DECIMATOR MULTI-MUESTRA MULTI-CANAL QUE PRODUCE UNA RESPUESTA DE FILTRACION DE 128 COEFICIENTES DE FILTROS DIGITALES PARA 4 CANALES INDEPENDIENTES CON UN INDICE DE DECIMACION DE 32, V.GR. DE ENTRADAS DE 1MHZ 1-BIT A SALIDAS DE 32 KHZ MULTIBIT, SEPARA CICLICAMENTE LOS VALORES DE COEFICIENTES EN 16 GRUPOS DE 8, SEGUN LAS POSICIONES DE LOS COEFICIENTES, EN 4 ROMS (0, 1, 2, 3, ). LAS ROMS SE ACOPLAN A LOS 4 MULTIPLICADORES (MULT 0, 1, 2, 3), EN LA QUE EL VALOR DE COEFICIENTE SE MULTIPLICA POR EL DEL BIT DE ENTRADA, A TRAVES DE UN MULTIPLEX (MUXI) CAPAZ DE HACER CICLO A TRAVES DE 4 CONDICIONES DISTINTAS. DESPUES DE QUE LOS 4 ACUMULADORES SUMANDOS (ACC 0, 1, 2, 3) ACOPLADOS A LAS SALIDAS DE SUS RESPECTIVOS MULTIPLICADORES DE CANAL HAN, EN PARALELO PARCIALMENTE COMPUTADO PALABRAS DE SALIDA, CADA UNO UTILIZANDO UN DIECISEISAVO DE LOS COEFICIENTES, EL MULTIPLEXER ROTA A ESTOS, POSIBILITANDO POR TANTO LA COMPUTACION COMPLETA EN 4 CICLOS, SIENDO LOS 4 REGISTRADORES (REG 00, 01, 02, 03) ASOCIADOS ACADA SUMADOR DE TAL MANERA QUE COMPUTE 4 PALABRAS DE SALIDA ESCALONADAS SIMULTANEAMENTE PARA CADA CANAL. UNA RESPUESTA DE FILTRADO PREFERIDA PUEDE REDUCIR EL TAMAÑO DE LAS ROMS.
ES90870154T 1990-09-18 1990-09-18 Circuito diezmador de varios canales. Expired - Lifetime ES2083445T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP90870154A EP0476215B1 (en) 1990-09-18 1990-09-18 Multi-channel decimator

Publications (1)

Publication Number Publication Date
ES2083445T3 true ES2083445T3 (es) 1996-04-16

Family

ID=8206081

Family Applications (1)

Application Number Title Priority Date Filing Date
ES90870154T Expired - Lifetime ES2083445T3 (es) 1990-09-18 1990-09-18 Circuito diezmador de varios canales.

Country Status (8)

Country Link
US (1) US5262970A (es)
EP (1) EP0476215B1 (es)
JP (1) JPH04271511A (es)
AU (1) AU647175B2 (es)
CA (1) CA2051608C (es)
DE (1) DE69024213T2 (es)
ES (1) ES2083445T3 (es)
FI (1) FI914362A (es)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5659569A (en) * 1990-06-25 1997-08-19 Qualcomm Incorporated Data burst randomizer
US6693951B1 (en) * 1990-06-25 2004-02-17 Qualcomm Incorporated System and method for generating signal waveforms in a CDMA cellular telephone system
US5463569A (en) * 1994-06-24 1995-10-31 General Electric Company Decimation filter using a zero-fill circuit for providing a selectable decimation ratio
US7929498B2 (en) 1995-06-30 2011-04-19 Interdigital Technology Corporation Adaptive forward power control and adaptive reverse power control for spread-spectrum communications
US6487190B1 (en) 1996-06-27 2002-11-26 Interdigital Technology Corporation Efficient multichannel filtering for CDMA modems
US7020111B2 (en) 1996-06-27 2006-03-28 Interdigital Technology Corporation System for using rapid acquisition spreading codes for spread-spectrum communications
ZA965340B (en) 1995-06-30 1997-01-27 Interdigital Tech Corp Code division multiple access (cdma) communication system
US6885652B1 (en) 1995-06-30 2005-04-26 Interdigital Technology Corporation Code division multiple access (CDMA) communication system
US6697350B2 (en) 1995-06-30 2004-02-24 Interdigital Technology Corporation Adaptive vector correlator for spread-spectrum communications
US6816473B2 (en) 1995-06-30 2004-11-09 Interdigital Technology Corporation Method for adaptive forward power control for spread-spectrum communications
US5790072A (en) * 1995-10-02 1998-08-04 Lucent Technologies, Inc. Method and apparatus for reducing data delay within a multi-channel shared-circuit date processing environment
US5956666A (en) * 1996-07-01 1999-09-21 Sun Microsystems, Inc. Signal interpolation and decimation exploiting filter symmetry
US5892693A (en) * 1996-07-01 1999-04-06 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
US6256654B1 (en) 1996-07-01 2001-07-03 Sun Microsystems, Inc. Signal interpolation and decimation exploiting filter symmetry
US5917734A (en) * 1996-09-24 1999-06-29 Advanced Micro Device Inc. Parallel decimator method and apparatus
US6134569A (en) * 1997-01-30 2000-10-17 Sharp Laboratories Of America, Inc. Polyphase interpolator/decimator using continuous-valued, discrete-time signal processing
US6313765B1 (en) 1997-10-10 2001-11-06 L-3 Communications Corporation Method for sample rate conversion of digital data
US6871207B1 (en) * 1999-12-20 2005-03-22 Cirrus Logic, Inc. Techniques for spreading zeros in a digital filter with minimal use of registers
DE10003700A1 (de) * 2000-01-28 2001-10-11 Infineon Technologies Ag Digitales Filter
JP2003046374A (ja) * 2001-08-03 2003-02-14 Nec Corp デジタルフィルタ回路
US6859813B2 (en) * 2001-12-11 2005-02-22 Lecroy Corporation Parallel decimation circuits
US7092465B2 (en) * 2002-11-14 2006-08-15 Freescale Semiconductor, Inc. Method and apparatus for processing an amplitude modulated (AM) signal
JP4957194B2 (ja) * 2006-11-09 2012-06-20 横河電機株式会社 デシメーションフィルタ
JP5676968B2 (ja) * 2010-08-12 2015-02-25 キヤノン株式会社 画像処理装置及び画像処理方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2447646A1 (fr) * 1979-01-29 1980-08-22 Materiel Telephonique Filtre numerique transversal pour traitement en temps partage sur plusieurs canaux
DE3484701D1 (de) * 1983-10-05 1991-07-18 Nec Corp Digitale signalverarbeitungseinrichtung mit einem digitalen filter.
US4766561A (en) * 1986-06-26 1988-08-23 Motorola, Inc. Method and apparatus for implementing multiple filters with shared components
US4881191A (en) * 1987-01-13 1989-11-14 Hewlett-Packard Company Multichannel decimation/interpolation filter
US4775851A (en) * 1987-06-01 1988-10-04 Motorola, Inc. Multiplierless decimating low-pass filter for a noise-shaping A/D converter
US5027306A (en) * 1989-05-12 1991-06-25 Dattorro Jon C Decimation filter as for a sigma-delta analog-to-digital converter
US5126961A (en) * 1991-03-06 1992-06-30 General Electric Company Plural-channel decimation filter, as for sigma-delta analog-to-digital converters

Also Published As

Publication number Publication date
EP0476215B1 (en) 1995-12-13
US5262970A (en) 1993-11-16
DE69024213T2 (de) 1996-07-04
AU8374991A (en) 1992-03-26
FI914362A0 (fi) 1991-09-17
EP0476215A1 (en) 1992-03-25
DE69024213D1 (de) 1996-01-25
FI914362A (fi) 1992-03-19
AU647175B2 (en) 1994-03-17
CA2051608A1 (en) 1992-03-19
CA2051608C (en) 1996-01-02
JPH04271511A (ja) 1992-09-28

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