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ES2113436T3 - Muestreo de señales. - Google Patents

Muestreo de señales.

Info

Publication number
ES2113436T3
ES2113436T3 ES92921302T ES92921302T ES2113436T3 ES 2113436 T3 ES2113436 T3 ES 2113436T3 ES 92921302 T ES92921302 T ES 92921302T ES 92921302 T ES92921302 T ES 92921302T ES 2113436 T3 ES2113436 T3 ES 2113436T3
Authority
ES
Spain
Prior art keywords
pct
filter
sample rate
signal
deriving
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
ES92921302T
Other languages
English (en)
Inventor
David Lyon
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.)
Snell Advanced Media Ltd
Original Assignee
Snell and Wilcox Ltd
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 Snell and Wilcox Ltd filed Critical Snell and Wilcox Ltd
Application granted granted Critical
Publication of ES2113436T3 publication Critical patent/ES2113436T3/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
    • H03H17/0621—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
    • H03H17/0657—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 higher than the input sampling frequency, i.e. interpolation
    • 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
    • H03H17/0685—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 rational
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
    • H04N7/0102—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving the resampling of the incoming video signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/24—Systems for the transmission of television signals using pulse code modulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Physics (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Analogue/Digital Conversion (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Image Processing (AREA)
  • Picture Signal Circuits (AREA)
  • Measurement Of Radiation (AREA)

Abstract

UN CONVERTIDOR DE PROPORCION PARA DIGITALMENTE CONVERTIR LA PROPORCION DE MUESTRA DE UNA SEÑAL, TIENE UN PRIMER FILTRO DIGITAL PARA DERIVAR UNA SEÑAL INTERMEDIA A UNA PROPORCION DE MUESTRA INCREMENTADA Y UN SEGUNDO FILTRO DIGITAL PARA DERIVAR UNA SEÑAL DE SALIDA A UNA PROPORCION DE MUESTRA DISMINUIDA EN RELACION A AQUELLA DE LA SEÑAL INTERMEDIA. EL PRIMER FILTRO ES DE ORDEN RELATIVAMENTE ALTO QUE SIRVE PARA DOBLAR LA FRECUENCIA. PORQUE LA FRECUENCIA CAMBIA ES UNA POTENCIA DE DOS, LA CARACTERISTICA DE APERTURA ES SENCILLA Y LA IMPLEMENTACION ES SIMPLE AUN EN CUALQUIER ORDEN. EL SEGUNDO FILTRO ES DE RELATIVAMENTE BAJO ORDEN TAL QUE LA IMPLEMENTACION SEA SIMPLE AUN CON UNA CARACTERISTICA DE APERTURA DE VARIACION DE TIEMPO. EL BAJO ORDEN DEL SEGUNDO FILTRO NO DEGRADA SIN EMBARGO LA CARACTERISTICA DE FRECUENCIA GENERAL
ES92921302T 1991-10-10 1992-10-09 Muestreo de señales. Expired - Lifetime ES2113436T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB919121504A GB9121504D0 (en) 1991-10-10 1991-10-10 Signal sampling

Publications (1)

Publication Number Publication Date
ES2113436T3 true ES2113436T3 (es) 1998-05-01

Family

ID=10702695

Family Applications (1)

Application Number Title Priority Date Filing Date
ES92921302T Expired - Lifetime ES2113436T3 (es) 1991-10-10 1992-10-09 Muestreo de señales.

Country Status (11)

Country Link
US (1) US5602762A (es)
EP (1) EP0623269B1 (es)
JP (1) JPH07500229A (es)
AT (1) ATE162355T1 (es)
AU (1) AU2690892A (es)
CA (1) CA2120717C (es)
DE (1) DE69224076T2 (es)
DK (1) DK0623269T3 (es)
ES (1) ES2113436T3 (es)
GB (1) GB9121504D0 (es)
WO (1) WO1993007712A1 (es)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9205614D0 (en) * 1992-03-14 1992-04-29 Innovision Ltd Sample rate converter suitable for converting between digital video formats
CA2207670A1 (fr) * 1997-05-29 1998-11-29 Andre Marguinaud Procede de synthese d'un filtre numerique a reponse impulsionnelle finie et filtre obtenu selon le procede
JP2000349579A (ja) * 1999-06-08 2000-12-15 Zanden Audio Syst:Kk デジタルオーディオ用帯域制限アナログフィルタ及びこれを用いた音声信号増幅装置
US20020097808A1 (en) * 2000-12-01 2002-07-25 Exar Corporation Digitally-controlled line build-out circuit
US6961395B2 (en) * 2001-11-16 2005-11-01 Nortel Networks Limited Time variant filter implementation
WO2004088841A2 (en) * 2003-03-31 2004-10-14 Koninklijke Philips Electronics N. V. Up and down sample rate converter

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO146545C (no) * 1979-12-21 1982-10-20 Erik B Naess Fremgangsmaate og innretning for oppsamling av olje og gass i havet, saerlig ved en ukontrollert utblaasning paa havbunnen
DE3028384A1 (de) * 1980-07-26 1982-02-25 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung von n-alkylpiperidinen und n-alkylpyrrolidinen
US4472785A (en) * 1980-10-13 1984-09-18 Victor Company Of Japan, Ltd. Sampling frequency converter
JPS57171884A (en) * 1981-03-12 1982-10-22 Victor Co Of Japan Ltd Conversion system for number of scanning lines
DE3376613D1 (en) * 1982-11-30 1988-06-16 British Telecomm Television signal transmission
JP2592810B2 (ja) * 1986-09-30 1997-03-19 株式会社東芝 サンプルレート変換回路
JPH0793548B2 (ja) * 1987-08-31 1995-10-09 三洋電機株式会社 標本化周波数変換回路
US4949177A (en) * 1988-09-19 1990-08-14 The Grass Valley Group, Inc. Method and apparatus for carrying out a non-linear operation on a digital signal
JP3089630B2 (ja) * 1989-03-30 2000-09-18 ソニー株式会社 サンプリングレート変換装置
US5057911A (en) * 1989-10-19 1991-10-15 Matsushita Electric Industrial Co., Ltd. System and method for conversion of digital video signals
JP3094419B2 (ja) * 1990-02-19 2000-10-03 ソニー株式会社 サンプリングレート変換装置
JP3143907B2 (ja) * 1990-02-27 2001-03-07 ソニー株式会社 サンプリング周波数乗換フィルタ回路
GB9205614D0 (en) * 1992-03-14 1992-04-29 Innovision Ltd Sample rate converter suitable for converting between digital video formats

Also Published As

Publication number Publication date
CA2120717A1 (en) 1993-04-15
AU2690892A (en) 1993-05-03
DK0623269T3 (da) 1998-09-14
CA2120717C (en) 2003-12-16
DE69224076T2 (de) 1998-07-23
WO1993007712A1 (en) 1993-04-15
EP0623269A1 (en) 1994-11-09
GB9121504D0 (en) 1991-11-27
US5602762A (en) 1997-02-11
EP0623269B1 (en) 1998-01-14
ATE162355T1 (de) 1998-01-15
DE69224076D1 (de) 1998-02-19
JPH07500229A (ja) 1995-01-05

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