FI863447A0 - Interpolations- eller decimatorfilter samt foer detta avsett sugfilter. - Google Patents

Interpolations- eller decimatorfilter samt foer detta avsett sugfilter.

Info

Publication number
FI863447A0
FI863447A0 FI863447A FI863447A FI863447A0 FI 863447 A0 FI863447 A0 FI 863447A0 FI 863447 A FI863447 A FI 863447A FI 863447 A FI863447 A FI 863447A FI 863447 A0 FI863447 A0 FI 863447A0
Authority
FI
Finland
Prior art keywords
sugfilter
decimatorfilter
avsett
eller
interpolations
Prior art date
Application number
FI863447A
Other languages
English (en)
Other versions
FI863447A (fi
Inventor
Nigel Paul Dyer
Original Assignee
Plessey Overseas
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 Plessey Overseas filed Critical Plessey Overseas
Publication of FI863447A0 publication Critical patent/FI863447A0/fi
Publication of FI863447A publication Critical patent/FI863447A/fi

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
    • H03H17/0248—Filters characterised by a particular frequency response or filtering method
    • H03H17/0264—Filter sets with mutual related characteristics
    • H03H17/0273—Polyphase filters
    • H03H17/0277—Polyphase filters comprising recursive filters
    • H03H17/0279—Polyphase filters comprising recursive filters having two phases
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/0248—Filters characterised by a particular frequency response or filtering method
    • H03H17/025—Notch filters
    • 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
    • H03H17/0427—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
    • H03H17/0438—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
    • H03H17/0444—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
    • H03H17/04—Recursive filters
    • H03H17/0416—Recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing
    • H03H17/0427—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
    • H03H17/0438—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
    • H03H17/045—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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Physics (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Gasification And Melting Of Waste (AREA)
  • Networks Using Active Elements (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Filters And Equalizers (AREA)
FI863447A 1985-08-28 1986-08-26 Interpolations- eller decimatorfilter samt foer detta avsett sugfilter. FI863447A (fi)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8521377A GB2179816B (en) 1985-08-28 1985-08-28 Interpolator/decimator filter structure

Publications (2)

Publication Number Publication Date
FI863447A0 true FI863447A0 (fi) 1986-08-26
FI863447A FI863447A (fi) 1987-03-01

Family

ID=10584365

Family Applications (1)

Application Number Title Priority Date Filing Date
FI863447A FI863447A (fi) 1985-08-28 1986-08-26 Interpolations- eller decimatorfilter samt foer detta avsett sugfilter.

Country Status (9)

Country Link
US (1) US4908787A (fi)
EP (1) EP0213853A3 (fi)
JP (1) JPS6251820A (fi)
CN (1) CN1012408B (fi)
BG (1) BG47050A3 (fi)
CA (1) CA1266095A1 (fi)
FI (1) FI863447A (fi)
GB (2) GB2179816B (fi)
IN (1) IN167744B (fi)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5034962A (en) * 1988-07-01 1991-07-23 Oki Electric Industry Co., Ltd. Voice-band signal processor
US5214761A (en) * 1989-05-08 1993-05-25 Wang Laboratories, Inc. Real-time adjustable-transform device driver for physical devices
US5181228A (en) * 1990-10-12 1993-01-19 Level One Communications, Inc. System and method for phase equalization
US5168214A (en) * 1991-02-19 1992-12-01 General Electric Company Multi-rate superresolution time series spectrum analyzer
US5122732A (en) * 1991-02-19 1992-06-16 General Electric Company Multi-rate superresolution time series spectrum analyzer
US5226057A (en) * 1991-03-20 1993-07-06 Rockwell International Corporation Receiver and adaptive digital notch filter
US5325318A (en) * 1992-01-31 1994-06-28 Constream Corporation Variable rate digital filter
US5862516A (en) * 1993-02-02 1999-01-19 Hirata; Yoshimutsu Method of non-harmonic analysis and synthesis of wave data
US5436858A (en) * 1994-04-05 1995-07-25 General Electric Company Decimation circuit and method for filtering quantized signals while providing phase angle correction with a substantially linear phase response
US5701099A (en) * 1995-11-27 1997-12-23 Level One Communications, Inc. Transconductor-C filter element with coarse and fine adjustment
SG11201400789UA (en) * 2011-09-30 2014-04-28 Creative Tech Ltd A novel efficient digital microphone decimation filter architecture

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5360539A (en) * 1976-11-12 1978-05-31 Hitachi Ltd Digital filter
JPS5592017A (en) * 1978-12-29 1980-07-12 Nec Corp Digital filter
US4302631A (en) * 1979-11-28 1981-11-24 International Telephone And Telegraph Corporation Decimator apparatus for decreasing the word rate of a digital signal of the type employed in digital telephone systems
JPS58111424A (ja) * 1981-12-24 1983-07-02 Sony Corp ノツチフイルタ
JPS5990419A (ja) * 1982-11-13 1984-05-24 Sony Corp ２次のデイジタル全域通過回路
US4694414A (en) * 1984-12-19 1987-09-15 Rca Corporation Digital delay interpolation filter with amplitude and phase compensation

Also Published As

Publication number Publication date
GB8902877D0 (en) 1989-03-30
US4908787A (en) 1990-03-13
JPS6251820A (ja) 1987-03-06
IN167744B (fi) 1990-12-15
BG47050A3 (en) 1990-04-16
EP0213853A2 (en) 1987-03-11
CA1269723C (fi) 1990-05-29
FI863447A (fi) 1987-03-01
EP0213853A3 (en) 1988-05-11
GB2179816A (en) 1987-03-11
CN1012408B (zh) 1991-04-17
CN86105230A (zh) 1987-04-29
GB2216741A (en) 1989-10-11
CA1266095A1 (en) 1990-02-20
GB2179816B (en) 1990-01-10
GB8521377D0 (en) 1985-10-02
GB2216741B (en) 1990-05-30

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Legal Events

Date Code Title Description
FA Application withdrawn

Owner name: PLESSEY OVERSEAS LIMITED