FR730942A - Method of communication by means of high frequency waves - Google Patents

Method of communication by means of high frequency waves

Info

Publication number
FR730942A
FR730942A FR730942DA FR730942A FR 730942 A FR730942 A FR 730942A FR 730942D A FR730942D A FR 730942DA FR 730942 A FR730942 A FR 730942A
Authority
FR
France
Prior art keywords
communication
high frequency
frequency waves
waves
frequency
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
Other languages
French (fr)
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.)
Telefunken AG
Original Assignee
Telefunken AG
Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH
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 Telefunken AG, Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH filed Critical Telefunken AG
Application granted granted Critical
Publication of FR730942A publication Critical patent/FR730942A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D1/00—Demodulation of amplitude-modulated oscillations
    • H03D1/14—Demodulation of amplitude-modulated oscillations by means of non-linear elements having more than two poles
    • H03D1/16—Demodulation of amplitude-modulated oscillations by means of non-linear elements having more than two poles of discharge tubes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/22—Automatic control in amplifiers having discharge tubes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B14/00—Transmission systems not characterised by the medium used for transmission
    • H04B14/002—Transmission systems not characterised by the medium used for transmission characterised by the use of a carrier modulation
    • H04B14/004—Amplitude modulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
  • Circuits Of Receivers In General (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Transmitters (AREA)
  • Rectifiers (AREA)
  • Hybrid Cells (AREA)
  • Noise Elimination (AREA)
FR730942D 1931-05-18 1932-02-03 Method of communication by means of high frequency waves Expired FR730942A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DET38879D DE560227C (en) 1931-05-18 1931-05-18 Method for transmitting messages by means of high frequency waves
DET38969D DE580991C (en) 1931-05-18 1931-06-06 Circuit for receiving modulated high-frequency waves
DET39009D DE583864C (en) 1931-05-18 1931-06-17 Circuit for receiving modulated high-frequency waves
DET40186D DE618797C (en) 1931-05-18 1932-02-08 Circuit for receiving modulated high-frequency waves

Publications (1)

Publication Number Publication Date
FR730942A true FR730942A (en) 1932-08-26

Family

ID=32034272

Family Applications (2)

Application Number Title Priority Date Filing Date
FR730942D Expired FR730942A (en) 1931-05-18 1932-02-03 Method of communication by means of high frequency waves
FR43009D Expired FR43009E (en) 1931-05-18 1933-02-07 Method of communication by means of high frequency waves

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR43009D Expired FR43009E (en) 1931-05-18 1933-02-07 Method of communication by means of high frequency waves

Country Status (4)

Country Link
US (2) US2031072A (en)
DE (4) DE560227C (en)
FR (2) FR730942A (en)
GB (3) GB393415A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE758211C (en) * 1937-02-11 1953-02-09 Radio Transmission Equipment L Device for displaying the deviation of a vehicle from a course line
US2515187A (en) * 1942-04-09 1950-07-18 William R Bliss Wide dynamic range amplifying and demodulating system
US2577506A (en) * 1945-07-09 1951-12-04 Logan M Belleville Amplifier
US2662978A (en) * 1945-11-29 1953-12-15 Philco Corp Logarithmic transducer
US2548913A (en) * 1946-04-17 1951-04-17 Edmund D Schreiner Radio receiver with logarithmic response circuit
US2705794A (en) * 1946-06-11 1955-04-05 Philco Corp Signal modifying apparatus for eliminating variations as a function of one or more independent variables
US2663015A (en) * 1946-06-11 1953-12-15 Philco Corp Object location system employing logarithmic transducer
US2713162A (en) * 1950-12-14 1955-07-12 Rca Corp Pulse receiver with logarithmic amplifier and base clipping detector
US2823303A (en) * 1953-10-29 1958-02-11 Hoffman Electronics Corp Compressor circuits for panoramic receivers
DE962271C (en) * 1954-11-12 1957-04-18 Lorenz C Ag Circuit arrangement for frequency modulation
NL111923C (en) * 1956-04-11
GB933934A (en) * 1960-12-08 1963-08-14 Marconi Wireless Telegraph Co Improvements in or relating to frequency varying circuit arrangements

Also Published As

Publication number Publication date
US2031072A (en) 1936-02-18
DE618797C (en) 1935-09-17
FR43009E (en) 1934-01-25
GB393421A (en) 1933-06-08
US2014509A (en) 1935-09-17
DE580991C (en) 1933-07-19
GB393415A (en) 1933-06-08
DE583864C (en) 1933-09-11
GB413402A (en) 1934-07-19
DE560227C (en) 1932-09-29

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