FI863446A0 - Interpolations- eller decimatorfilter samt foer detta avsett digitalfilter. - Google Patents

Interpolations- eller decimatorfilter samt foer detta avsett digitalfilter.

Info

Publication number
FI863446A0
FI863446A0 FI863446A FI863446A FI863446A0 FI 863446 A0 FI863446 A0 FI 863446A0 FI 863446 A FI863446 A FI 863446A FI 863446 A FI863446 A FI 863446A FI 863446 A0 FI863446 A0 FI 863446A0
Authority
FI
Finland
Prior art keywords
decimatorfilter
digitalfilter
avsett
eller
interpolations
Prior art date
Application number
FI863446A
Other languages
English (en)
Other versions
FI863446A (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 FI863446A0 publication Critical patent/FI863446A0/fi
Publication of FI863446A publication Critical patent/FI863446A/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
    • H03H17/04—Recursive 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
    • H03H17/0248—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
    • H03H17/04—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
    • 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
    • H03H2017/0472—Recursive filters based on allpass structures
FI863446A 1985-08-28 1986-08-26 Interpolations- eller decimatorfilter samt foer detta avsett digitalfilter. FI863446A (fi)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8521376A GB2179815B (en) 1985-08-28 1985-08-28 Interpolator / decimator filter structure

Publications (2)

Publication Number Publication Date
FI863446A0 true FI863446A0 (fi) 1986-08-26
FI863446A FI863446A (fi) 1987-03-01

Family

ID=10584364

Family Applications (1)

Application Number Title Priority Date Filing Date
FI863446A FI863446A (fi) 1985-08-28 1986-08-26 Interpolations- eller decimatorfilter samt foer detta avsett digitalfilter.

Country Status (9)

Country Link
US (1) US4864526A (fi)
EP (1) EP0212950A3 (fi)
JP (1) JPS6251821A (fi)
CN (1) CN1012547B (fi)
BG (1) BG46610A3 (fi)
CA (1) CA1269136A (fi)
FI (1) FI863446A (fi)
GB (2) GB2179815B (fi)
IN (1) IN167745B (fi)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2638303B1 (fr) * 1988-10-26 1991-01-18 Texas Instruments France Filtre interpolatif perfectionne
JP2517083B2 (ja) * 1988-11-11 1996-07-24 松下電器産業株式会社 調理器用の蓋つまみ
JP2583610B2 (ja) * 1989-07-07 1997-02-19 三菱電機株式会社 Ａ／ｄ、ｄ／ａ変換装置
GB9023883D0 (en) * 1990-10-27 1990-12-12 Atomic Energy Authority Uk Shot detection
US5245667A (en) * 1991-04-03 1993-09-14 Frox, Inc. Method and structure for synchronizing multiple, independently generated digital audio signals
FR2704110B1 (fr) * 1993-04-16 1995-07-13 Balestro Freddy Dispositif de traitement de signaux utilisant plusieurs filtrages differents, notamment pour le codage audiofrequence de signaux vocaux.
CN1067818C (zh) * 1998-01-22 2001-06-27 曹保定 可消除负阻尼的同步发电机励磁控制方法及调节器
JP3349688B2 (ja) 1999-11-05 2002-11-25 松下電器産業株式会社 移動体通信端末装置
US7158591B2 (en) * 2001-05-09 2007-01-02 Signum Concept, Inc. Recursive resampling digital filter structure for demodulating 3G wireless signals
US7164741B2 (en) * 2001-05-09 2007-01-16 Signum Concept, Inc. Non-recursive resampling digital fir filter structure for demodulating 3G cellular signals
US8521798B2 (en) * 2008-09-22 2013-08-27 Magor Communications Corporation Second order real allpass filter

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3855423A (en) * 1973-05-03 1974-12-17 Bell Telephone Labor Inc Noise spectrum equalizer
US4270027A (en) * 1979-11-28 1981-05-26 International Telephone And Telegraph Corporation Telephone subscriber line unit with sigma-delta digital to analog converter
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
US4270026A (en) * 1979-11-28 1981-05-26 International Telephone And Telegraph Corporation Interpolator apparatus for increasing the word rate of a digital signal of the type employed in digital telephone systems
JPS5952911A (ja) * 1982-09-20 1984-03-27 Nec Corp トランスバ−サル・フイルタ

Also Published As

Publication number Publication date
JPS6251821A (ja) 1987-03-06
GB2179815A (en) 1987-03-11
GB2214021B (en) 1990-05-23
IN167745B (fi) 1990-12-15
GB2214021A (en) 1989-08-23
US4864526A (en) 1989-09-05
BG46610A3 (en) 1990-01-15
CN1012547B (zh) 1991-05-01
CN86105452A (zh) 1987-05-27
FI863446A (fi) 1987-03-01
GB8521376D0 (en) 1985-10-02
GB2179815B (en) 1989-11-29
GB8902876D0 (en) 1989-03-30
CA1269136A (en) 1990-05-15
EP0212950A3 (en) 1988-05-04
EP0212950A2 (en) 1987-03-04

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Legal Events

Date Code Title Description
MM Patent lapsed

Owner name: PLESSEY OVERSEAS LIMITED