BE649606A - - Google Patents

Info

Publication number
BE649606A
BE649606A BE649606A BE649606A BE649606A BE 649606 A BE649606 A BE 649606A BE 649606 A BE649606 A BE 649606A BE 649606 A BE649606 A BE 649606A BE 649606 A BE649606 A BE 649606A
Authority
BE
Belgium
Application number
BE649606A
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 filed Critical
Publication of BE649606A publication Critical patent/BE649606A/xx

Links

Classifications

    • 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
    • H04R9/06—Loudspeakers
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
BE649606A 1963-06-21 1964-06-22 BE649606A (xx)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL294443 1963-06-21
NL298464 1963-09-26

Publications (1)

Publication Number Publication Date
BE649606A true BE649606A (xx) 1964-12-22

Family

ID=26641913

Family Applications (1)

Application Number Title Priority Date Filing Date
BE649606A BE649606A (xx) 1963-06-21 1964-06-22

Country Status (11)

Country Link
US (1) US3334184A (xx)
AT (1) AT247437B (xx)
BE (1) BE649606A (xx)
CH (1) CH434372A (xx)
DE (1) DE1268680B (xx)
DK (1) DK117642B (xx)
ES (1) ES301214A1 (xx)
FR (1) FR1401643A (xx)
GB (1) GB1016115A (xx)
NL (2) NL294443A (xx)
SE (1) SE301503B (xx)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2233784A1 (xx) * 1973-06-12 1975-01-10 Philips Nv

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3937887A (en) * 1969-05-15 1976-02-10 Ben O. Key Acoustic power system
DE2420689C3 (de) * 1974-04-29 1984-09-20 Arndt 7500 Karlsruhe Klingelnberg Verfahren und Anordnung zur Verbesserung der Eigenschaften elektrodynamischer Wandler durch Bewegungsgegenkopplung
DE2658528A1 (de) * 1976-12-23 1978-06-29 Siemens Ag Vorrichtung zur galvanomagnetischen lagerueckmeldung fuer elektrodynamische antriebe
US4327250A (en) * 1979-05-03 1982-04-27 Electro Audio Dynamics Inc. Dynamic speaker equalizer
NO172469C (no) * 1984-01-25 1993-07-21 Per Kirksaeter Anordning for lydgjengivelsessystem
US4809338A (en) * 1985-07-05 1989-02-28 Harman International Industries, Incorporated Automotive sound system
US4759065A (en) * 1986-09-22 1988-07-19 Harman International Industries, Incorporated Automotive sound system
GB2201318B (en) * 1987-02-12 1990-10-24 Udi Group Ltd Electromechanical transducer
DE3707620A1 (de) * 1987-03-10 1987-10-15 Ultrasonics Schallfeld Messtec Beschleunigungssensor fuer dynamische lautsprecher
GB2260875B (en) * 1991-10-23 1995-06-28 Anthony Best Dynamics Ltd Noise source
US5471527A (en) * 1993-12-02 1995-11-28 Dsc Communications Corporation Voice enhancement system and method
US5493620A (en) * 1993-12-20 1996-02-20 Pulfrey; Robert E. High fidelity sound reproducing system
US9084051B2 (en) * 2011-02-18 2015-07-14 The Rockefeller University Unidirectional mechanical amplification in a microphone

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE451710A (xx) * 1942-08-14
US2860183A (en) * 1954-02-01 1958-11-11 Conrad Ivan Willard Sound reproducing system
US3009991A (en) * 1955-12-01 1961-11-21 Bekey Ivan Sound reproduction system
US2948778A (en) * 1956-05-07 1960-08-09 Warner W Clements Sound reproducing means

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2233784A1 (xx) * 1973-06-12 1975-01-10 Philips Nv

Also Published As

Publication number Publication date
SE301503B (xx) 1968-06-10
NL298464A (xx)
GB1016115A (en) 1966-01-05
DK117642B (da) 1970-05-19
NL294443A (xx)
ES301214A1 (es) 1965-01-16
FR1401643A (fr) 1965-06-04
DE1268680B (de) 1968-05-22
AT247437B (de) 1966-06-10
US3334184A (en) 1967-08-01
CH434372A (de) 1967-04-30

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