GB1471832A - Digital filter - Google Patents

Digital filter

Info

Publication number
GB1471832A
GB1471832A GB1908575A GB1908575A GB1471832A GB 1471832 A GB1471832 A GB 1471832A GB 1908575 A GB1908575 A GB 1908575A GB 1908575 A GB1908575 A GB 1908575A GB 1471832 A GB1471832 A GB 1471832A
Authority
GB
United Kingdom
Prior art keywords
samples
circuit
filter
output
signal
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
Application number
GB1908575A
Other languages
English (en)
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of GB1471832A publication Critical patent/GB1471832A/en
Expired 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
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06J—HYBRID COMPUTING ARRANGEMENTS
    • G06J1/00—Hybrid computing arrangements
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/0223—Computation saving measures; Accelerating measures
    • H03H17/0227—Measures concerning the coefficients
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/0223—Computation saving measures; Accelerating measures
    • H03H17/0233—Measures concerning the signal representation
    • H03H17/0236—Measures concerning the signal representation using codes
    • 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
    • H03H17/0614—Non-recursive filters using Delta-modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/025—Filter arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Computing Systems (AREA)
  • Automation & Control Theory (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Evolutionary Computation (AREA)
  • Fuzzy Systems (AREA)
  • General Physics & Mathematics (AREA)
  • Software Systems (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Complex Calculations (AREA)
  • Analogue/Digital Conversion (AREA)
GB1908575A 1974-06-21 1975-05-07 Digital filter Expired GB1471832A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7422172A FR2275936A1 (fr) 1974-06-21 1974-06-21 Filtre frequentiel numerique

Publications (1)

Publication Number Publication Date
GB1471832A true GB1471832A (en) 1977-04-27

Family

ID=9140517

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1908575A Expired GB1471832A (en) 1974-06-21 1975-05-07 Digital filter

Country Status (5)

Country Link
US (1) US3959637A (cg-RX-API-DMAC10.html)
JP (1) JPS5113549A (cg-RX-API-DMAC10.html)
DE (1) DE2523625A1 (cg-RX-API-DMAC10.html)
FR (1) FR2275936A1 (cg-RX-API-DMAC10.html)
GB (1) GB1471832A (cg-RX-API-DMAC10.html)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7506141A (nl) * 1975-05-26 1976-11-30 Philips Nv Digitaal filter.
US4105863A (en) * 1976-12-20 1978-08-08 Bell Telephone Laboratories, Incorporated Arrangement for combining data symbols in accordance with a predetermined weighting function
US4356559A (en) * 1980-08-01 1982-10-26 Bell Telephone Laboratories, Incorporated Logic arrangement for recursive digital filter
US4389538A (en) * 1981-01-12 1983-06-21 Rockwell International Corporation Multiplexer for single-octave data processor
DE3144456A1 (de) * 1981-11-09 1983-05-19 Siemens AG, 1000 Berlin und 8000 München Transversalfilter zur umformung digitaler signale
JPS5919375A (ja) * 1982-07-15 1984-01-31 ブラデイミル・アブラモビチ・スモリヤンスキ バイポ−ラ形四極半導体デバイス
JPS60177989A (ja) * 1984-02-24 1985-09-11 Agency Of Ind Science & Technol レ−ザ加工装置
US4588979A (en) * 1984-10-05 1986-05-13 Dbx, Inc. Analog-to-digital converter
US4691293A (en) * 1984-12-28 1987-09-01 Ford Aerospace & Communications Corporation High frequency, wide range FIR filter
DE3881883T2 (de) * 1988-08-30 1993-12-23 Ibm Digitales Filter für einen Sigma-Delta-Dekoder.
US6766339B2 (en) * 2001-01-11 2004-07-20 Asml Holding N.V. Method and system for efficient and accurate filtering and interpolation
US7483479B2 (en) 2004-09-16 2009-01-27 Keyeye Communications Scaled signal processing elements for reduced filter tap noise
JP2012160907A (ja) * 2011-01-31 2012-08-23 Icom Inc デジタルフィルタ、無線装置、フィルタリング方法及びプログラム

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3639848A (en) * 1970-02-20 1972-02-01 Electronic Communications Transverse digital filter
US3633105A (en) * 1970-04-01 1972-01-04 Gte Automatic Electric Lab Inc Digital adaptive equalizer system
US3633170A (en) * 1970-06-09 1972-01-04 Ibm Digital filter and threshold circuit
FR2116224B1 (cg-RX-API-DMAC10.html) * 1970-10-29 1974-10-31 Ibm France
FR2118410A5 (cg-RX-API-DMAC10.html) * 1970-12-17 1972-07-28 Ibm France
FR2129290A5 (cg-RX-API-DMAC10.html) * 1971-03-17 1972-10-27 Ibm
US3699321A (en) * 1971-04-01 1972-10-17 North American Rockwell Automatic adaptive equalizer implementation amenable to mos

Also Published As

Publication number Publication date
JPS5113549A (en) 1976-02-03
FR2275936B1 (cg-RX-API-DMAC10.html) 1976-10-22
DE2523625A1 (de) 1976-01-08
FR2275936A1 (fr) 1976-01-16
US3959637A (en) 1976-05-25

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee