NL287305A - - Google Patents

Info

Publication number
NL287305A
NL287305A NL287305DA NL287305A NL 287305 A NL287305 A NL 287305A NL 287305D A NL287305D A NL 287305DA NL 287305 A NL287305 A NL 287305A
Authority
NL
Netherlands
Application number
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.)
Publication of NL287305A publication Critical patent/NL287305A/xx

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
    • H03F1/36—Negative-feedback-circuit arrangements with or without positive feedback in discharge-tube amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/181—Low-frequency amplifiers, e.g. audio preamplifiers
    • H03F3/183—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/26—Push-pull amplifiers; Phase-splitters therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/002—Damping circuit arrangements for transducers, e.g. motional feedback circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/025—Magnetic circuit
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2209/00—Details of transducers of the moving-coil, moving-strip, or moving-wire type covered by H04R9/00 but not provided for in any of its subgroups
    • H04R2209/022—Aspects regarding the stray flux internal or external to the magnetic circuit, e.g. shielding, shape of magnetic circuit, flux compensation coils

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
NL287305D 1961-12-29 NL287305A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US163170A US3118972A (en) 1961-12-29 1961-12-29 Acoustic apparatus

Publications (1)

Publication Number Publication Date
NL287305A true NL287305A (fr)

Family

ID=22588786

Family Applications (1)

Application Number Title Priority Date Filing Date
NL287305D NL287305A (fr) 1961-12-29

Country Status (5)

Country Link
US (1) US3118972A (fr)
BE (1) BE626697A (fr)
DE (1) DE1183133B (fr)
GB (1) GB1003150A (fr)
NL (1) NL287305A (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3530244A (en) * 1967-02-13 1970-09-22 Martin G Reiffin Motional feedback amplifier systems
US3937887A (en) * 1969-05-15 1976-02-10 Ben O. Key Acoustic power system
US3798374A (en) * 1972-04-03 1974-03-19 Rene Oliveras Sound reproducing system utilizing motional feedback
US3928723A (en) * 1973-07-02 1975-12-23 Kazuo Kai Telephone set with built-in loudspeaker
JPS5379525A (en) * 1976-12-23 1978-07-14 Sony Corp Compound diaphtagm for speakers
US4465905A (en) * 1982-04-28 1984-08-14 International Jensen Incorporated Loudspeaker assembly
US4565905A (en) * 1982-04-28 1986-01-21 International Jensen Incoporated Loudspeaker construction
US5493620A (en) * 1993-12-20 1996-02-20 Pulfrey; Robert E. High fidelity sound reproducing system
US7379558B2 (en) * 2004-12-16 2008-05-27 Jl Audio, Inc. Loudspeaker with integrated spider standoff ring
US8401207B2 (en) 2009-03-31 2013-03-19 Harman International Industries, Incorporated Motional feedback system

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1734944A (en) * 1927-10-11 1929-11-05 Celebritone Ltd Sound-amplifying system
US1901331A (en) * 1929-05-15 1933-03-14 Magnavox Co Electrodynamic loud-speaker
DE719459C (de) * 1938-04-26 1942-04-09 Arthur Anders Sicherheitsvorrichtung fuer Fahrzeugbrennkraftmaschinen
DE853298C (de) * 1950-08-01 1952-10-23 Bernhard Philberth Rueckgekoppelter dynamischer Lautsprecher
DE967169C (de) * 1952-06-20 1957-10-17 Werner Holle Dr Ing Gegenkopplungsanordnung fuer elektrodynamische Lautsprecher
US2860183A (en) * 1954-02-01 1958-11-11 Conrad Ivan Willard Sound reproducing system
US2964597A (en) * 1954-12-10 1960-12-13 Rca Corp Loudspeaker magnetic field structure
US2948778A (en) * 1956-05-07 1960-08-09 Warner W Clements Sound reproducing means
US3047661A (en) * 1957-01-18 1962-07-31 Daniel E Winker High fidelity audio system
US3061675A (en) * 1958-09-09 1962-10-30 Texas Instruments Inc Loud speaker improvement
US3057961A (en) * 1959-01-08 1962-10-09 Security First Nat Bank Self-correcting, high fidelity, sound reproducing apparatus

Also Published As

Publication number Publication date
BE626697A (fr)
GB1003150A (en) 1965-09-02
DE1183133B (de) 1964-12-10
US3118972A (en) 1964-01-21

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