CA2051608A1 - Filtre numerique et decimateur multicanal - Google Patents

Filtre numerique et decimateur multicanal

Info

Publication number
CA2051608A1
CA2051608A1 CA2051608A CA2051608A CA2051608A1 CA 2051608 A1 CA2051608 A1 CA 2051608A1 CA 2051608 A CA2051608 A CA 2051608A CA 2051608 A CA2051608 A CA 2051608A CA 2051608 A1 CA2051608 A1 CA 2051608A1
Authority
CA
Canada
Prior art keywords
roms
channel
adder
multiplexer
digital filter
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.)
Granted
Application number
CA2051608A
Other languages
English (en)
Other versions
CA2051608C (fr
Inventor
Joannes Mathilda Josephus 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
Joannes Mathilda Josephus Sevenhans
Peter Paul Frans Reusens
Lajos Kiss
Alcatel N.V.
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 Joannes Mathilda Josephus Sevenhans, Peter Paul Frans Reusens, Lajos Kiss, Alcatel N.V. filed Critical Joannes Mathilda Josephus Sevenhans
Publication of CA2051608A1 publication Critical patent/CA2051608A1/fr
Application granted granted Critical
Publication of CA2051608C publication Critical patent/CA2051608C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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]

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Complex Calculations (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
CA002051608A 1990-09-18 1991-09-17 Filtre numerique et decimateur multicanal Expired - Fee Related CA2051608C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP90870154A EP0476215B1 (fr) 1990-09-18 1990-09-18 Décimateur à canaux multiples
EP90870154.3 1990-09-18

Publications (2)

Publication Number Publication Date
CA2051608A1 true CA2051608A1 (fr) 1992-03-19
CA2051608C CA2051608C (fr) 1996-01-02

Family

ID=8206081

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002051608A Expired - Fee Related CA2051608C (fr) 1990-09-18 1991-09-17 Filtre numerique et decimateur multicanal

Country Status (8)

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

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6693951B1 (en) * 1990-06-25 2004-02-17 Qualcomm Incorporated System and method for generating signal waveforms in a CDMA cellular telephone system
US5659569A (en) * 1990-06-25 1997-08-19 Qualcomm Incorporated Data burst randomizer
US5463569A (en) * 1994-06-24 1995-10-31 General Electric Company Decimation filter using a zero-fill circuit for providing a selectable decimation ratio
US7020111B2 (en) 1996-06-27 2006-03-28 Interdigital Technology Corporation System for using rapid acquisition spreading codes for spread-spectrum communications
US6885652B1 (en) 1995-06-30 2005-04-26 Interdigital Technology Corporation Code division multiple access (CDMA) communication system
US6487190B1 (en) 1996-06-27 2002-11-26 Interdigital Technology Corporation Efficient multichannel filtering for CDMA modems
US6697350B2 (en) 1995-06-30 2004-02-24 Interdigital Technology Corporation Adaptive vector correlator for spread-spectrum communications
ZA965340B (en) 1995-06-30 1997-01-27 Interdigital Tech Corp Code division multiple access (cdma) communication system
US7929498B2 (en) 1995-06-30 2011-04-19 Interdigital Technology Corporation Adaptive forward power control and adaptive reverse power control 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
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
US5956666A (en) * 1996-07-01 1999-09-21 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
JPH04271511A (ja) 1992-09-28
DE69024213D1 (de) 1996-01-25
AU647175B2 (en) 1994-03-17
AU8374991A (en) 1992-03-26
US5262970A (en) 1993-11-16
CA2051608C (fr) 1996-01-02
ES2083445T3 (es) 1996-04-16
EP0476215A1 (fr) 1992-03-25
FI914362A (fi) 1992-03-19
FI914362A0 (fi) 1991-09-17
DE69024213T2 (de) 1996-07-04
EP0476215B1 (fr) 1995-12-13

Similar Documents

Publication Publication Date Title
CA2051608A1 (fr) Filtre numerique et decimateur multicanal
CA2259261A1 (fr) Filtrage multivoie efficace pour modems a acces multiplie par code de repartition (amcr)
Bonnerot et al. Digital processing techniques in the 60 channel transmultiplexer
CA2122652A1 (fr) Filtre demi-bande pour demultiplexeur de groupe cellulaire
EP0285316A3 (fr) Filtre numérique programmable à plusieurs étages
KR960008497B1 (en) Digital circuit for sampling rate variation and signal filtering
US5928314A (en) Digital filter having a substantially equal number of negative and positive weighting factors
CA2051858A1 (fr) Filtre numerique
CA2177664A1 (fr) Filtre de reception numerique pour systemes de communication
CN208369545U (zh) 通用型滤波器
JPH043689B2 (fr)
SU1283949A1 (ru) Многоканальный нерекурсивный цифровой фильтр
SU794766A1 (ru) Цифровой многоканальный приемник
EP0476214B1 (fr) Interpolateur pour augmenter le débit des mots de sortie d'un signal numérique
JPS55660A (en) Multiplexing input coefficient type ccd filter
Ohlsson et al. A 16 GSPS 0.18 μm CMOS decimator for single-bit Σ Δ-modulation
Gazsi DSP-based implementation of a transmultiplexer using wave digital filters
SU606211A1 (ru) Устройство преобразовани групповых сигналов
JPS5516573A (en) Cyclic variable filter
RU95114620A (ru) Адаптивная дискретная система
CN100391137C (zh) 一种相位可调的基带滤波优化实现方法及装置
Anastassopoulos et al. Modified delta-adder and delta-multiplier for multiplexing
SU1173410A1 (ru) Устройство дл умножени в избыточном последовательном коде
JPS6322088B2 (fr)
JPS6442909A (en) Digital filter

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed