IT1079807B - IMPROVEMENT IN ACTIVE FILTERS, IN PARTICULAR FOR MUSICAL INSTRUMENTS - Google Patents

IMPROVEMENT IN ACTIVE FILTERS, IN PARTICULAR FOR MUSICAL INSTRUMENTS

Info

Publication number
IT1079807B
IT1079807B IT5060177A IT5060177A IT1079807B IT 1079807 B IT1079807 B IT 1079807B IT 5060177 A IT5060177 A IT 5060177A IT 5060177 A IT5060177 A IT 5060177A IT 1079807 B IT1079807 B IT 1079807B
Authority
IT
Italy
Prior art keywords
improvement
musical instruments
active filters
filters
active
Prior art date
Application number
IT5060177A
Other languages
Italian (it)
Original Assignee
Wurlitzer 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 Wurlitzer Co filed Critical Wurlitzer Co
Application granted granted Critical
Publication of IT1079807B publication Critical patent/IT1079807B/en

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H1/00—Details of electrophonic musical instruments
    • G10H1/02—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos
    • G10H1/06—Circuits for establishing the harmonic content of tones, or other arrangements for changing the tone colour
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks
    • H03H11/12—Frequency selective two-port networks using amplifiers with feedback
    • H03H11/1217—Frequency selective two-port networks using amplifiers with feedback using a plurality of operational amplifiers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Networks Using Active Elements (AREA)
  • Electrophonic Musical Instruments (AREA)
IT5060177A 1976-09-20 1977-08-08 IMPROVEMENT IN ACTIVE FILTERS, IN PARTICULAR FOR MUSICAL INSTRUMENTS IT1079807B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US72473076A 1976-09-20 1976-09-20

Publications (1)

Publication Number Publication Date
IT1079807B true IT1079807B (en) 1985-05-13

Family

ID=24911668

Family Applications (1)

Application Number Title Priority Date Filing Date
IT5060177A IT1079807B (en) 1976-09-20 1977-08-08 IMPROVEMENT IN ACTIVE FILTERS, IN PARTICULAR FOR MUSICAL INSTRUMENTS

Country Status (3)

Country Link
JP (1) JPS5338948A (en)
DE (1) DE2736887A1 (en)
IT (1) IT1079807B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007097361A (en) * 2005-09-30 2007-04-12 Matsushita Electric Ind Co Ltd Step-up/down converter

Also Published As

Publication number Publication date
DE2736887A1 (en) 1978-03-23
JPS5338948A (en) 1978-04-10

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