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CH266765A - Device for detecting frequency-modulated signals. - Google Patents

Device for detecting frequency-modulated signals.

Info

Publication number
CH266765A
CH266765A CH266765DA CH266765A CH 266765 A CH266765 A CH 266765A CH 266765D A CH266765D A CH 266765DA CH 266765 A CH266765 A CH 266765A
Authority
CH
Switzerland
Prior art keywords
modulated signals
detecting frequency
detecting
frequency
modulated
Prior art date
Application number
Other languages
German (de)
Inventor
Gloeilampenfabrieken N Philips
Original Assignee
Philips 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 Nv filed Critical Philips Nv
Publication of CH266765A publication Critical patent/CH266765A/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
    • H03D3/02—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal
    • H03D3/22—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by means of active elements with more than two electrodes to which two signals are applied derived from the signal to be demodulated and having a phase difference related to the frequency deviation, e.g. phase detector
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
    • H01J19/02—Electron-emitting electrodes; Cathodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J21/00—Vacuum tubes
    • H01J21/02—Tubes with a single discharge path
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Particle Accelerators (AREA)
  • Microwave Tubes (AREA)
CH266765D 1947-09-03 1948-09-01 Device for detecting frequency-modulated signals. CH266765A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL266765X 1947-09-03

Publications (1)

Publication Number Publication Date
CH266765A true CH266765A (en) 1950-02-15

Family

ID=19781765

Family Applications (1)

Application Number Title Priority Date Filing Date
CH266765D CH266765A (en) 1947-09-03 1948-09-01 Device for detecting frequency-modulated signals.

Country Status (7)

Country Link
US (1) US2760067A (en)
BE (1) BE484647A (en)
CH (1) CH266765A (en)
DE (1) DE826760C (en)
FR (1) FR988495A (en)
GB (1) GB679176A (en)
NL (1) NL71107C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE969436C (en) * 1951-04-26 1958-06-04 Lorenz C Ag Arrangement for demodulating frequency or phase modulated oscillations

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2086271A (en) * 1934-07-04 1937-07-06 Telefunken Gmbh Electron discharge device
NL45032C (en) * 1934-12-27
NL46575C (en) * 1935-01-31
US2090218A (en) * 1935-06-25 1937-08-17 Hygrade Sylvania Corp Electron discharge device
BE426298A (en) * 1937-02-12
US2286337A (en) * 1937-11-27 1942-06-16 Telefunken Gmbh Negative feedback circuit
US2228980A (en) * 1938-09-27 1941-01-14 Telefunken Gmbh Electron discharge device
US2235498A (en) * 1940-01-11 1941-03-18 Rca Corp Electron discharge device
BE469561A (en) * 1942-05-06
US2379764A (en) * 1942-06-06 1945-07-03 Rca Corp Frequency modulation detection
US2441254A (en) * 1945-08-04 1948-05-11 Remco Electronic Inc Symmetrical space charge tube
US2460062A (en) * 1945-11-23 1949-01-25 Philco Corp Grid controlled electron tube

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE969436C (en) * 1951-04-26 1958-06-04 Lorenz C Ag Arrangement for demodulating frequency or phase modulated oscillations

Also Published As

Publication number Publication date
US2760067A (en) 1956-08-21
DE826760C (en) 1952-01-03
BE484647A (en)
FR988495A (en) 1951-08-28
GB679176A (en) 1952-09-17
NL71107C (en)

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