DE1276729B - Mikrofoneinheit aus einem Kondensatormikrofon und einem Transistorverstaerker - Google Patents

Mikrofoneinheit aus einem Kondensatormikrofon und einem Transistorverstaerker

Info

Publication number
DE1276729B
DE1276729B DE1964N0025465 DEN0025465A DE1276729B DE 1276729 B DE1276729 B DE 1276729B DE 1964N0025465 DE1964N0025465 DE 1964N0025465 DE N0025465 A DEN0025465 A DE N0025465A DE 1276729 B DE1276729 B DE 1276729B
Authority
DE
Germany
Prior art keywords
microphone
transistor
unit according
condenser
transistor amplifier
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.)
Pending
Application number
DE1964N0025465
Other languages
German (de)
English (en)
Inventor
Peter Fatovic
Cornelis Wilfred Reedyk
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.)
Nortel Networks Ltd
Original Assignee
Northern Electric Co Ltd
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 Northern Electric Co Ltd filed Critical Northern Electric Co Ltd
Publication of DE1276729B publication Critical patent/DE1276729B/de
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R19/00—Electrostatic transducers
    • H04R19/01—Electrostatic transducers characterised by the use of electrets
    • H04R19/016—Electrostatic transducers characterised by the use of electrets for microphones
    • 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
    • H03F3/181—Low-frequency amplifiers, e.g. audio preamplifiers
    • H03F3/183—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only
    • H03F3/185—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only with field-effect devices
    • H03F3/1855—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only with field-effect devices with junction-FET devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R19/00—Electrostatic transducers
    • H04R19/04—Microphones

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Power Engineering (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Amplifiers (AREA)
DE1964N0025465 1963-09-04 1964-09-04 Mikrofoneinheit aus einem Kondensatormikrofon und einem Transistorverstaerker Pending DE1276729B (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA883849 1963-09-04

Publications (1)

Publication Number Publication Date
DE1276729B true DE1276729B (de) 1968-09-05

Family

ID=4141799

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1964N0025465 Pending DE1276729B (de) 1963-09-04 1964-09-04 Mikrofoneinheit aus einem Kondensatormikrofon und einem Transistorverstaerker

Country Status (3)

Country Link
DE (1) DE1276729B (online.php)
GB (1) GB1084018A (online.php)
NL (1) NL6410259A (online.php)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2572616A1 (fr) * 1984-10-30 1986-05-02 Thomson Csf Transducteur electro-acoustique a diaphragme piezoelectrique

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2497433A1 (fr) * 1980-12-31 1982-07-02 Thomson Csf Mat Tel Circuit de liaison d'un microphone actif, en particulier a electret a un circuit de transmission telephonique
RU2267236C2 (ru) * 2003-08-28 2005-12-27 Пинский Александр Генахович Способ формирования характеристик конденсаторного микрофона и устройство для его осуществления

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1110230B (de) * 1956-04-09 1961-07-06 Phil Habil Oskar Vierling Dr Anordnung zum Betrieb von Kondensator-mikrofonen an Transistorverstaerkern

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1110230B (de) * 1956-04-09 1961-07-06 Phil Habil Oskar Vierling Dr Anordnung zum Betrieb von Kondensator-mikrofonen an Transistorverstaerkern

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2572616A1 (fr) * 1984-10-30 1986-05-02 Thomson Csf Transducteur electro-acoustique a diaphragme piezoelectrique
EP0180518A1 (fr) * 1984-10-30 1986-05-07 Thomson-Csf Transducteur électroacoustique à diaphragme piézoélectrique

Also Published As

Publication number Publication date
NL6410259A (online.php) 1965-03-05
GB1084018A (en) 1967-09-20

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