IT1167483B - Filtro digitale, particolarmente del tipo passa-basso, comprendente una coppia di sezioni di filtro del secondo ordine collegate in cascata - Google Patents

Filtro digitale, particolarmente del tipo passa-basso, comprendente una coppia di sezioni di filtro del secondo ordine collegate in cascata

Info

Publication number
IT1167483B
IT1167483B IT23209/81A IT2320981A IT1167483B IT 1167483 B IT1167483 B IT 1167483B IT 23209/81 A IT23209/81 A IT 23209/81A IT 2320981 A IT2320981 A IT 2320981A IT 1167483 B IT1167483 B IT 1167483B
Authority
IT
Italy
Prior art keywords
cascade
pair
low
sections connected
pass type
Prior art date
Application number
IT23209/81A
Other languages
English (en)
Other versions
IT8123209A0 (it
Inventor
James Charles Candy
Bruce Allen Wooley
Original Assignee
Western Electric Co
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 Western Electric Co filed Critical Western Electric Co
Publication of IT8123209A0 publication Critical patent/IT8123209A0/it
Application granted granted Critical
Publication of IT1167483B publication Critical patent/IT1167483B/it

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
    • H03H17/04—Recursive filters
    • H03H17/0461—Quantisation; Rounding; Truncation; Overflow oscillations or limit cycles eliminating measures

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Physics (AREA)
  • Complex Calculations (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Manipulation Of Pulses (AREA)
  • Logic Circuits (AREA)
IT23209/81A 1980-08-01 1981-07-28 Filtro digitale, particolarmente del tipo passa-basso, comprendente una coppia di sezioni di filtro del secondo ordine collegate in cascata IT1167483B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/174,516 US4356559A (en) 1980-08-01 1980-08-01 Logic arrangement for recursive digital filter

Publications (2)

Publication Number Publication Date
IT8123209A0 IT8123209A0 (it) 1981-07-28
IT1167483B true IT1167483B (it) 1987-05-13

Family

ID=22636456

Family Applications (1)

Application Number Title Priority Date Filing Date
IT23209/81A IT1167483B (it) 1980-08-01 1981-07-28 Filtro digitale, particolarmente del tipo passa-basso, comprendente una coppia di sezioni di filtro del secondo ordine collegate in cascata

Country Status (10)

Country Link
US (1) US4356559A (it)
JP (1) JPS5753131A (it)
BE (1) BE889774A (it)
CA (1) CA1158322A (it)
DE (1) DE3129616A1 (it)
FR (1) FR2488079A1 (it)
GB (1) GB2081544B (it)
IT (1) IT1167483B (it)
NL (1) NL8103638A (it)
SE (1) SE456129B (it)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4893316A (en) * 1985-04-04 1990-01-09 Motorola, Inc. Digital radio frequency receiver
US4733403A (en) * 1986-05-12 1988-03-22 Motorola, Inc. Digital zero IF selectivity section
US4803647A (en) * 1986-05-30 1989-02-07 Rca Licensing Corporation Sampled data audio tone control apparatus
US4918637A (en) * 1987-01-13 1990-04-17 Hewlett-Packard Company Multichannel decimation/interpolation filter
US4811362A (en) * 1987-06-15 1989-03-07 Motorola, Inc. Low power digital receiver
US4910752A (en) * 1987-06-15 1990-03-20 Motorola, Inc. Low power digital receiver
US4852035A (en) * 1987-07-06 1989-07-25 The Grass Valley Group, Inc. Simple coefficient half-bandwidth digital filter for video data compression
DE3781159D1 (de) * 1987-12-12 1992-09-17 Itt Ind Gmbh Deutsche Digitales dezimationsfilter.
US4866647A (en) * 1988-02-04 1989-09-12 American Telephone And Telegraph Company Continuously variable digital delay circuit
US5355329A (en) * 1992-12-14 1994-10-11 Apple Computer, Inc. Digital filter having independent damping and frequency parameters
JPH09116387A (ja) * 1995-10-13 1997-05-02 Ricoh Co Ltd デジタルフィルタ
US6480534B1 (en) * 1997-10-08 2002-11-12 Texas Instruments Incorporated Apparatus and method for a reduced component equalizer circuit
GB2336494B (en) 1998-04-03 2003-04-23 Sony Uk Ltd Digital filter
US6463448B1 (en) * 1999-09-30 2002-10-08 Agere Systems Guardian Corp. Linear intrasummed multiple-bit feedback shift register
US20080167735A1 (en) * 2007-01-08 2008-07-10 Gerardo Escobar Valderrama Repetitive controller to compensate for (61±1) harmonics
US8239430B2 (en) * 2007-10-09 2012-08-07 International Business Machines Corporation Accuracy improvement in CORDIC through precomputation of the error bias
US20090094306A1 (en) * 2007-10-09 2009-04-09 Krishnakalin Gahn W Cordic rotation angle calculation
KR101677294B1 (ko) * 2010-04-19 2016-11-18 삼성전자주식회사 피크 윈도윙을 위한 스무딩 장치
RU2579982C2 (ru) * 2014-08-06 2016-04-10 Закрытое акционерное общество "Гранит-7" Способ цифровой рекурсивной полосовой фильтрации и цифровой фильтр для реализации способа

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3676654A (en) * 1970-05-21 1972-07-11 Collins Radio Co Digitalized filter
US3749895A (en) * 1971-10-06 1973-07-31 Bell Telephone Labor Inc Apparatus for suppressing limit cycles due to quantization in digital filters
US3714402A (en) * 1971-12-20 1973-01-30 Bell Telephone Labor Inc Digital filter employing serial arithmetic
US3997770A (en) * 1973-07-09 1976-12-14 U.S. Philips Corporation Recursive digital filter
FR2275936A1 (fr) * 1974-06-21 1976-01-16 Ibm France Filtre frequentiel numerique
NL169535C (nl) * 1974-11-14 1982-07-16 Philips Nv Digitale signaalbewerkingsinrichting met gestuurde kwantisering.
US3982112A (en) * 1974-12-23 1976-09-21 General Electric Company Recursive numerical processor
US4021654A (en) * 1975-06-11 1977-05-03 Paradyne, Inc. Digital filter
US4034197A (en) * 1976-06-30 1977-07-05 Bell Telephone Laboratories, Incorporated Digital filter circuit
JPS54554A (en) * 1977-06-03 1979-01-05 Hitachi Ltd Digital filter
US4215415A (en) * 1977-09-19 1980-07-29 Nippon Electric Company, Ltd. Recursive digital filter comprising a circuit responsive to first sum and feedback sign bits and second sum sign and integer bits for detecting overflow in the second sum
JPS54144848A (en) * 1978-05-02 1979-11-12 Nec Corp Digital filter
US4317092A (en) * 1980-06-30 1982-02-23 Hewlett-Packard Company Recursive low pass digital filter

Also Published As

Publication number Publication date
SE456129B (sv) 1988-09-05
GB2081544B (en) 1984-03-28
US4356559A (en) 1982-10-26
SE8104487L (sv) 1982-02-02
DE3129616A1 (de) 1982-06-03
FR2488079B1 (it) 1984-12-07
BE889774A (fr) 1981-11-16
IT8123209A0 (it) 1981-07-28
GB2081544A (en) 1982-02-17
JPS5753131A (en) 1982-03-30
NL8103638A (nl) 1982-03-01
CA1158322A (en) 1983-12-06
FR2488079A1 (fr) 1982-02-05

Similar Documents

Publication Publication Date Title
IT1167483B (it) Filtro digitale, particolarmente del tipo passa-basso, comprendente una coppia di sezioni di filtro del secondo ordine collegate in cascata
AT387900B (de) Korbfilter
ATA406882A (de) Digitales filter
FI834633A (fi) Automatiskt reningssystem foer filter.
DE3889276D1 (de) Digitaler Vormodulationsfilter.
NL193890B (nl) Niet-lineaire, digitale accentueringsschakeling.
FI841842A0 (fi) Basfrekvensbandstyrt utjaemningsarrangemang foer passband.
BR8100234A (pt) Filtro
ES492652A0 (es) Perfeccionamientos en filtros adaptables digitales
DE3485935D1 (de) Rekursives digitales filter.
BE888500A (fr) Filtre retrolavable,
NL7707054A (nl) Digitaal filter.
FI844326L (fi) Filter foer bortseparering av tungflytande vaetska.
ES516966A0 (es) Un filtro de equilibrio del tipo de respuesta de impulsos finitos, destinado a utilizarse en un sistema de telecomunicacion.
DE3485969D1 (de) Adaptives digitalfilter.
IT8223825A0 (it) Circuiti selettivi a frequenza, in particolare filtri ottici integrati.
FI813327L (fi) Digital tvaoledar-fyrledaromvandlare foer fullduplexsignaler
NO157406C (no) Roterbart filter.
SE8301282D0 (sv) Rorfilter, avsett i forsta hand for filtrering av vetskor
AR225485A1 (es) Una maquina-herramienta
NL179620C (nl) Niet-recursief, interpolerend, digitaal filter.
IT8119001A0 (it) Complesso circuitale per convertire una variazione di resistenza in una variazione di frequenza.
DE3879138D1 (de) Digitales vormodulationsfilter.
IT8222857A0 (it) Circuiti filtro digitali.
NL192494B (nl) Digitale concentrator.