GB1084018A - Apparatus comprising a microphone and an amplifier - Google Patents

Apparatus comprising a microphone and an amplifier

Info

Publication number
GB1084018A
GB1084018A GB3644164A GB3644164A GB1084018A GB 1084018 A GB1084018 A GB 1084018A GB 3644164 A GB3644164 A GB 3644164A GB 3644164 A GB3644164 A GB 3644164A GB 1084018 A GB1084018 A GB 1084018A
Authority
GB
United Kingdom
Prior art keywords
amplifier
diaphragm
circuit
microphone
conductive
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
GB3644164A
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.)
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 GB1084018A publication Critical patent/GB1084018A/en
Expired legal-status Critical Current

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
    • 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; DEAF-AID SETS; 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)
GB3644164A 1963-09-04 1964-09-04 Apparatus comprising a microphone and an amplifier Expired GB1084018A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
GB1084018A true GB1084018A (en) 1967-09-20

Family

ID=4141799

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3644164A Expired GB1084018A (en) 1963-09-04 1964-09-04 Apparatus comprising a microphone and an amplifier

Country Status (3)

Country Link
DE (1) DE1276729B (enrdf_load_stackoverflow)
GB (1) GB1084018A (enrdf_load_stackoverflow)
NL (1) NL6410259A (enrdf_load_stackoverflow)

Cited By (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

Families Citing this family (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

Family Cites Families (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 (3)

* 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
EP0055650A1 (fr) * 1980-12-31 1982-07-07 Thomson-Csf Telephone Circuit de liaison d'un microphone actif, en particulier à électret, à un circuit de transmission téléphonique
RU2267236C2 (ru) * 2003-08-28 2005-12-27 Пинский Александр Генахович Способ формирования характеристик конденсаторного микрофона и устройство для его осуществления

Also Published As

Publication number Publication date
DE1276729B (de) 1968-09-05
NL6410259A (enrdf_load_stackoverflow) 1965-03-05

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