DE809565C - Vorrichtung zur Erzeugung von durch Schallschwingungen in der Frequenz oder in der Phase modulierten Schwingungen - Google Patents

Vorrichtung zur Erzeugung von durch Schallschwingungen in der Frequenz oder in der Phase modulierten Schwingungen

Info

Publication number
DE809565C
DE809565C DEP20518A DEP0020518A DE809565C DE 809565 C DE809565 C DE 809565C DE P20518 A DEP20518 A DE P20518A DE P0020518 A DEP0020518 A DE P0020518A DE 809565 C DE809565 C DE 809565C
Authority
DE
Germany
Prior art keywords
phase
frequency
modulated
vibrations
sound vibrations
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
DEP20518A
Other languages
German (de)
English (en)
Inventor
Gerard Hepp
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of DE809565C publication Critical patent/DE809565C/de
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H2/00—Networks using elements or techniques not provided for in groups H03H3/00 - H03H21/00
    • H03H2/005—Coupling circuits between transmission lines or antennas and transmitters, receivers or amplifiers
    • H03H2/006—Transmitter or amplifier output circuits
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
DEP20518A 1946-05-23 1948-11-04 Vorrichtung zur Erzeugung von durch Schallschwingungen in der Frequenz oder in der Phase modulierten Schwingungen Expired DE809565C (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL628057X 1946-05-23

Publications (1)

Publication Number Publication Date
DE809565C true DE809565C (de) 1951-07-30

Family

ID=19788647

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP20518A Expired DE809565C (de) 1946-05-23 1948-11-04 Vorrichtung zur Erzeugung von durch Schallschwingungen in der Frequenz oder in der Phase modulierten Schwingungen

Country Status (5)

Country Link
US (1) US2497605A (enrdf_load_stackoverflow)
DE (1) DE809565C (enrdf_load_stackoverflow)
FR (1) FR946994A (enrdf_load_stackoverflow)
GB (1) GB628057A (enrdf_load_stackoverflow)
NL (1) NL67619C (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2917300A (en) * 1956-12-07 1959-12-15 Univ California Frequency modulating accelerometer
DE1261901B (de) * 1963-03-29 1968-02-29 Telefunken Patent Aus Widerstaenden und Kondensatoren aufgebauter Vierpol mit einem Daempfungsmaximum

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1615645A (en) * 1920-07-15 1927-01-25 Westinghouse Electric & Mfg Co Combined wireless sending and receiving system
GB406674A (en) * 1931-09-19 1934-02-28 Marconi Wireless Telegraph Co Improvements in or relating to modulated carrier wave transmitting systems
GB512028A (en) * 1938-02-24 1939-08-28 William Spencer Percival Improvements in or relating to thermionic valve circuits
US2418842A (en) * 1943-03-04 1947-04-15 Bell Telephone Labor Inc Scanning oscillator

Also Published As

Publication number Publication date
US2497605A (en) 1950-02-14
FR946994A (fr) 1949-06-20
GB628057A (en) 1949-08-22
NL67619C (enrdf_load_stackoverflow)

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