DE3044208C2 - Interpolator zur Erhöhung der Wortgeschwindigkeit eines digitalen Signals - Google Patents

Interpolator zur Erhöhung der Wortgeschwindigkeit eines digitalen Signals

Info

Publication number
DE3044208C2
DE3044208C2 DE3044208A DE3044208A DE3044208C2 DE 3044208 C2 DE3044208 C2 DE 3044208C2 DE 3044208 A DE3044208 A DE 3044208A DE 3044208 A DE3044208 A DE 3044208A DE 3044208 C2 DE3044208 C2 DE 3044208C2
Authority
DE
Germany
Prior art keywords
word
digital
bits
filter
words
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
Application number
DE3044208A
Other languages
German (de)
English (en)
Other versions
DE3044208A1 (de
Inventor
Bhagwati Prasad Shelton Conn. Agrawal
Kishan Fairfield Conn. Shenoi
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
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Publication of DE3044208A1 publication Critical patent/DE3044208A1/de
Application granted granted Critical
Publication of DE3044208C2 publication Critical patent/DE3044208C2/de
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/0223—Computation saving measures; Accelerating measures
    • H03H17/0225—Measures concerning the multipliers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/04—Recursive filters
    • H03H17/0416—Recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Physics (AREA)
  • Computing Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Analogue/Digital Conversion (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
DE3044208A 1979-11-28 1980-11-24 Interpolator zur Erhöhung der Wortgeschwindigkeit eines digitalen Signals Expired DE3044208C2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/098,105 US4270026A (en) 1979-11-28 1979-11-28 Interpolator apparatus for increasing the word rate of a digital signal of the type employed in digital telephone systems

Publications (2)

Publication Number Publication Date
DE3044208A1 DE3044208A1 (de) 1981-10-15
DE3044208C2 true DE3044208C2 (de) 1986-10-30

Family

ID=22267126

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3044208A Expired DE3044208C2 (de) 1979-11-28 1980-11-24 Interpolator zur Erhöhung der Wortgeschwindigkeit eines digitalen Signals

Country Status (8)

Country Link
US (1) US4270026A (en, 2012)
JP (1) JPS5698048A (en, 2012)
BE (1) BE886386A (en, 2012)
BR (1) BR8007754A (en, 2012)
DE (1) DE3044208C2 (en, 2012)
ES (1) ES8106385A1 (en, 2012)
FR (1) FR2471094A1 (en, 2012)
GB (1) GB2064244B (en, 2012)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10009767A1 (de) * 2000-03-01 2001-10-04 Infineon Technologies Ag Interpolations-Filterschaltung

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR8009085A (pt) * 1980-06-18 1982-05-11 Ericsson Telefon Ab L M Aparelho de circuito de processamento de audio para linha de assinante
JPS6046899B2 (ja) * 1980-09-26 1985-10-18 日本電気株式会社 反響消去装置
ATE14358T1 (de) * 1980-11-26 1985-08-15 Studer Willi Ag Verfahren und schaltungsanordnung zur umsetzung der abtastfrequenz einer abtastfolge unter umgehung der konversion in ein kontinuierliches signal.
JPS5892160A (ja) * 1981-11-27 1983-06-01 Nec Corp サンプリング周波数変換装置
DE3203012A1 (de) * 1982-01-29 1983-08-04 Siemens AG, 1000 Berlin und 8000 München Verfahren und schaltungsanordnung zur erzeugung von interpolationswerten zwischen gespeicherten stuetzwerten
FR2548851B1 (fr) * 1983-07-07 1986-11-14 Electricite De France Procede et installation d'analyse et de restitution de signal a echantillonnage et interpolation
DE3477535D1 (en) * 1983-10-06 1989-05-03 Studer Willi Ag Method and device to convert a sampled input signal sequence into a sampled output signal sequence
NL8400073A (nl) * 1984-01-10 1985-08-01 Philips Nv Interpolerende filterinrichting met niet-rationale verhouding tussen de ingangs- en uitgangsbemonsterfrequentie.
US4588979A (en) * 1984-10-05 1986-05-13 Dbx, Inc. Analog-to-digital converter
US4593271A (en) * 1985-01-16 1986-06-03 At&T Bell Laboratories Higher order interpolation for digital-to-analog conversion
GB2179815B (en) * 1985-08-28 1989-11-29 Plessey Co Plc Interpolator / decimator filter structure
NL8503478A (nl) * 1985-12-18 1987-07-16 Philips Nv Coefficienten generator met fase vergrendelde lus voor een filterinrichting met niet-rationele verhouding tussen ingangs- en uitgangsbemonsterfrequentie.
JP2581047B2 (ja) * 1986-10-24 1997-02-12 ヤマハ株式会社 楽音信号発生方法
US4819252A (en) * 1988-02-16 1989-04-04 Thomson Consumer Electronics, Inc. Sampled data subsampling apparatus
US5220583A (en) * 1988-10-03 1993-06-15 Motorola, Inc. Digital fm demodulator with a reduced sampling rate
US5075880A (en) * 1988-11-08 1991-12-24 Wadia Digital Corporation Method and apparatus for time domain interpolation of digital audio signals
JPH05501941A (ja) * 1989-05-12 1993-04-08 ミテル　セミコンダクター　リミテッド 音声信号プロセッサ回路
JP2583610B2 (ja) * 1989-07-07 1997-02-19 三菱電機株式会社 Ａ／ｄ、ｄ／ａ変換装置
EP0476214B1 (en) * 1990-09-18 1995-08-09 ALCATEL BELL Naamloze Vennootschap Interpolator increasing the output word rate of a digital signal
GB9205614D0 (en) * 1992-03-14 1992-04-29 Innovision Ltd Sample rate converter suitable for converting between digital video formats
US5263054A (en) * 1992-05-21 1993-11-16 International Business Machines Corporation Method and system for interpolating baud rate timing recovery for asynchronous start stop protocol
US5455782A (en) * 1992-08-14 1995-10-03 Harris Corporation Decimation filter and method
US5475628A (en) * 1992-09-30 1995-12-12 Analog Devices, Inc. Asynchronous digital sample rate converter
DE4239396C1 (de) * 1992-11-24 1994-02-24 Itt Ind Gmbh Deutsche Verfahren zur Erzeugung eines modifizierten Videosignals
US5623513A (en) * 1993-12-13 1997-04-22 Amati Communications Corporation Mitigating clipping and quantization effects in digital transmission systems
US5757362A (en) * 1995-01-05 1998-05-26 International Business Machines Corporation Recursive digital filter using fixed point arithmetic
US5657261A (en) * 1995-04-17 1997-08-12 Wilson; Dennis L. Interpolation of digital signals using signal sample replication
US5638010A (en) * 1995-06-07 1997-06-10 Analog Devices, Inc. Digitally controlled oscillator for a phase-locked loop providing a residue signal for use in continuously variable interpolation and decimation filters
US5917809A (en) * 1997-01-08 1999-06-29 Analog Devices, Inc. Asymmetric digital subscriber loop modem and method
US6240299B1 (en) * 1998-02-20 2001-05-29 Conexant Systems, Inc. Cellular radiotelephone having answering machine/voice memo capability with parameter-based speech compression and decompression
US6249237B1 (en) * 1998-10-09 2001-06-19 Lsi Logic Corporation System and method for bandpass shaping in an oversampling converter
FR2808139B1 (fr) * 2000-04-25 2003-01-03 Saint Louis Inst Procede de filtrage a large dynamique pour filtre numerique recursif implante dans un processeur de signal dsp travaillant avec des nombres entiers
US6941330B2 (en) * 2000-09-27 2005-09-06 Hughes Electronics Corporation Feed forward sigma delta interpolator for use in a fractional-N synthesizer
US7403962B2 (en) * 2004-05-28 2008-07-22 Broadcom Corporation Interpolation filter design and application

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL176211C (nl) * 1974-09-16 1985-03-01 Philips Nv Interpolerend digitaal filter.
US3973081A (en) * 1975-09-12 1976-08-03 Trw Inc. Feedback residue compression for digital speech systems
US4020332A (en) * 1975-09-24 1977-04-26 Bell Telephone Laboratories, Incorporated Interpolation-decimation circuit for increasing or decreasing digital sampling frequency
US4021616A (en) * 1976-01-08 1977-05-03 Ncr Corporation Interpolating rate multiplier
US4270027A (en) * 1979-11-28 1981-05-26 International Telephone And Telegraph Corporation Telephone subscriber line unit with sigma-delta digital to analog converter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10009767A1 (de) * 2000-03-01 2001-10-04 Infineon Technologies Ag Interpolations-Filterschaltung
DE10009767B4 (de) * 2000-03-01 2006-07-06 Infineon Technologies Ag Interpolations-Filterschaltung

Also Published As

Publication number Publication date
GB2064244A (en) 1981-06-10
FR2471094B1 (en, 2012) 1984-04-13
JPS6131658B2 (en, 2012) 1986-07-22
GB2064244B (en) 1983-11-16
DE3044208A1 (de) 1981-10-15
FR2471094A1 (fr) 1981-06-12
US4270026A (en) 1981-05-26
JPS5698048A (en) 1981-08-07
ES497284A0 (es) 1981-08-16
BE886386A (fr) 1981-06-01
BR8007754A (pt) 1981-06-09
ES8106385A1 (es) 1981-08-16

Similar Documents

Publication Publication Date Title
DE3044208C2 (de) Interpolator zur Erhöhung der Wortgeschwindigkeit eines digitalen Signals
DE3851053T2 (de) Fir digitale filteranordnung.
DE69619615T2 (de) Verfahren zur digitalen Breitbandfilterung und Filter zur Durchführung des Verfahrens
DE3124924C2 (en, 2012)
DE3044209A1 (de) Dezimator zur erniedrigung der wortgeschwindigkeit eines digitalen signals, insbesondere zur verwendung in digitalen fernsprechsystemen
DE69212337T2 (de) Sigma-Delta-Modulator für einen Digital/Analog-Umsetzer mit Wackelsignal
DE2707936C3 (de) Einseitenband-FrequenzmultiplexÜbertragungssystem
DE3015567A1 (de) Digitales signalisierungssystem, insbesondere fuer fernsprechanlagen
DE2839229C2 (de) Frequenzweiche mit einem Transversalfilter
DE69118372T2 (de) Dezimationsfilter für Sigma Delta Konverter und Datenendeinrichtung mit einem solchen Filter
DE3044582C2 (de) Digitaler Verstärker, insbesondere zur Verwendung in einer digitalen Fernsprech-Teilnehmerschaltung
DE3785654T2 (de) Tonsignalerzeugungsvorrichtung mit einem digitalen Filter.
DE2638314C2 (en, 2012)
DE2648422A1 (de) Digitalfilter
DE69424754T2 (de) Verfahren zur Umsetzung der Abtastfrequenz
DE3810916C2 (de) Delta-Pulscodemodulation
DE2850718A1 (de) Sich selbst anpassender entzerrer fuer eine elektrische nachrichtenuebertragungsstrecke
EP0255972B1 (de) Mehrstufige Sender-Antennenkoppeleinrichtung
EP0889587A1 (de) Einrichtung zur Reduktion der Datenrate
DE69403328T2 (de) Verfahren und vorrichtung zum filtern eines digitalen zeitsignals und anwendung für echokorrektur in einem übertragungskanal
DE69121986T2 (de) Eingangsgewichteter Transversalfilter
DE4328139A1 (de) Schaltungsanordnung zur Echoauslöschung
DE3922469C2 (en, 2012)
DE3308703C2 (en, 2012)
DE4022387C2 (en, 2012)

Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
D2 Grant after examination
8328 Change in the person/name/address of the agent

Free format text: GRAF, G., DIPL.-ING., PAT.-ASS., 7000 STUTTGART

8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: ALCATEL N.V., AMSTERDAM, NL

8339 Ceased/non-payment of the annual fee