CH291952A - Mit einem Kondensatormikrophon frequenzmodulierter UKW-Sender. - Google Patents

Mit einem Kondensatormikrophon frequenzmodulierter UKW-Sender.

Info

Publication number
CH291952A
CH291952A CH291952DA CH291952A CH 291952 A CH291952 A CH 291952A CH 291952D A CH291952D A CH 291952DA CH 291952 A CH291952 A CH 291952A
Authority
CH
Switzerland
Prior art keywords
frequency modulated
condenser microphone
transmitter frequency
vhf transmitter
vhf
Prior art date
Application number
Other languages
English (en)
Inventor
Velga Etablissement
Original Assignee
Velga Ets
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 Velga Ets filed Critical Velga Ets
Publication of CH291952A publication Critical patent/CH291952A/de

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
    • H04R19/04—Microphones
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/10—Angle modulation by means of variable impedance
    • H03C3/28—Angle modulation by means of variable impedance using variable impedance driven mechanically or acoustically

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
CH291952D 1950-04-22 1950-04-22 Mit einem Kondensatormikrophon frequenzmodulierter UKW-Sender. CH291952A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH704473X 1950-04-22

Publications (1)

Publication Number Publication Date
CH291952A true CH291952A (de) 1953-07-15

Family

ID=4530281

Family Applications (1)

Application Number Title Priority Date Filing Date
CH291952D CH291952A (de) 1950-04-22 1950-04-22 Mit einem Kondensatormikrophon frequenzmodulierter UKW-Sender.

Country Status (6)

Country Link
US (1) US2683861A (de)
CH (1) CH291952A (de)
DE (1) DE865324C (de)
FR (1) FR1044665A (de)
GB (1) GB704473A (de)
NL (1) NL160670B (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US3135920A (en) * 1959-10-12 1964-06-02 Rca Corp Frequency controlled oscillator
US3311703A (en) * 1963-05-21 1967-03-28 Carl E Grinstead Microphone with low frequency filter
DE1190042B (de) * 1963-08-01 1965-04-01 Peter Krehl Kondensator-Mikrophon in Hochfrequenzschaltung
DE1240128B (de) * 1964-08-01 1967-05-11 Sennheiser Electronic Hochfrequenzkondensatormikrophon mit einem Oszillator und einem angekoppelten, auf dessen Frequenz abgestimmten Schwingkreis, dessen Kapazitaet das Wandlerelement bildet
US3440348A (en) * 1965-06-26 1969-04-22 Shell Oil Co Multivibrator capacitor microphone circuit

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1622039A (en) * 1925-05-02 1927-03-22 Frederick W Lee Apparatus for and method of reproducing sound
US1631583A (en) * 1926-02-12 1927-06-07 Ignatz Lauter Capacitatively-actuated loud speaker
US2008713A (en) * 1931-05-27 1935-07-23 Harvey C Hayes Sound detecting apparatus
US2311491A (en) * 1941-07-31 1943-02-16 Rca Corp Radio-acoustic apparatus
US2386049A (en) * 1943-03-09 1945-10-02 Gen Electric Apparatus for converting sound to frequency modulated currents

Also Published As

Publication number Publication date
FR1044665A (fr) 1953-11-19
US2683861A (en) 1954-07-13
NL160670B (nl)
DE865324C (de) 1953-02-02
GB704473A (en) 1954-02-24

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