WO2003058814A1 - Digital filter designing method and designing apparatus, digital filter designing program, and digital filter - Google Patents

Digital filter designing method and designing apparatus, digital filter designing program, and digital filter Download PDF

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Publication number
WO2003058814A1
WO2003058814A1 PCT/JP2002/013483 JP0213483W WO03058814A1 WO 2003058814 A1 WO2003058814 A1 WO 2003058814A1 JP 0213483 W JP0213483 W JP 0213483W WO 03058814 A1 WO03058814 A1 WO 03058814A1
Authority
WO
WIPO (PCT)
Prior art keywords
digital filter
designing
program
filters
combining
Prior art date
Application number
PCT/JP2002/013483
Other languages
French (fr)
Japanese (ja)
Inventor
Yukio Koyanagi
Original Assignee
Sakai, Yasue
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 Sakai, Yasue filed Critical Sakai, Yasue
Publication of WO2003058814A1 publication Critical patent/WO2003058814A1/en

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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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Physics (AREA)
  • Networks Using Active Elements (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Image Processing (AREA)

Abstract

One or more unit filters are prepared from basic unit filters having a predetermined basic numerical string h1 to h6 as filter coefficients. A digital filter is designed by combining these. Thus, by combining the unit filters, it is possible to automatically calculate a complicated filter coefficient, so that an engineer having no long experience can easily design filters.
PCT/JP2002/013483 2001-12-28 2002-12-25 Digital filter designing method and designing apparatus, digital filter designing program, and digital filter WO2003058814A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2001-400673 2001-12-28
JP2001400673 2001-12-28
JP2002-129168 2002-04-30
JP2002129168 2002-04-30

Publications (1)

Publication Number Publication Date
WO2003058814A1 true WO2003058814A1 (en) 2003-07-17

Family

ID=26625392

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2002/013483 WO2003058814A1 (en) 2001-12-28 2002-12-25 Digital filter designing method and designing apparatus, digital filter designing program, and digital filter

Country Status (2)

Country Link
TW (1) TW200303648A (en)
WO (1) WO2003058814A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05243908A (en) * 1991-12-06 1993-09-21 Nec Corp Filter
JPH06503450A (en) * 1990-12-19 1994-04-14 ルンナー，トマス How to reduce the power consumption of a digital filter bank by reducing the number of products

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06503450A (en) * 1990-12-19 1994-04-14 ルンナー，トマス How to reduce the power consumption of a digital filter bank by reducing the number of products
JPH05243908A (en) * 1991-12-06 1993-09-21 Nec Corp Filter

Also Published As

Publication number Publication date
TW200303648A (en) 2003-09-01

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