DE572142C - Verfahren zum Empfang frequenzmodulierter Schwingungen - Google Patents

Verfahren zum Empfang frequenzmodulierter Schwingungen

Info

Publication number
DE572142C
DE572142C DE1930572142D DE572142DD DE572142C DE 572142 C DE572142 C DE 572142C DE 1930572142 D DE1930572142 D DE 1930572142D DE 572142D D DE572142D D DE 572142DD DE 572142 C DE572142 C DE 572142C
Authority
DE
Germany
Prior art keywords
frequency
amplitude
vibrations
receiving frequency
modulation
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
DE1930572142D
Other languages
German (de)
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.)
RCA Corp
Original Assignee
RCA Corp
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 RCA Corp filed Critical RCA Corp
Application granted granted Critical
Publication of DE572142C publication Critical patent/DE572142C/de
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K4/00—Generating pulses having essentially a finite slope or stepped portions
    • H03K4/06—Generating pulses having essentially a finite slope or stepped portions having triangular shape
    • H03K4/08—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape
    • H03K4/10—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only
    • H03K4/12—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only in which a sawtooth voltage is produced across a capacitor
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C27/00—Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/00 or C22C16/00
    • C22C27/02—Alloys based on vanadium, niobium, or tantalum
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B13/00—Generation of oscillations using deflection of electron beam in a cathode-ray tube
    • 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
    • H03D3/04—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by counting or integrating cycles of oscillations
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/01—Shaping pulses
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K9/00—Demodulating pulses which have been modulated with a continuously-variable signal
    • H03K9/06—Demodulating pulses which have been modulated with a continuously-variable signal of frequency- or rate-modulated pulses

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Amplitude Modulation (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
DE1930572142D 1932-03-17 1930-01-12 Verfahren zum Empfang frequenzmodulierter Schwingungen Expired DE572142C (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE399408X 1932-03-17

Publications (1)

Publication Number Publication Date
DE572142C true DE572142C (de) 1933-03-10

Family

ID=6397484

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1930572142D Expired DE572142C (de) 1932-03-17 1930-01-12 Verfahren zum Empfang frequenzmodulierter Schwingungen

Country Status (4)

Country Link
DE (1) DE572142C (enrdf_load_stackoverflow)
FR (1) FR752532A (enrdf_load_stackoverflow)
GB (1) GB399408A (enrdf_load_stackoverflow)
NL (2) NL31724C (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE869086C (de) * 1939-11-03 1957-07-11 Interessengemeinschaft Fuer Ru Verfahren zur Frequenzmodulation eines Schwingungskreises

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE407565A (enrdf_load_stackoverflow) * 1934-03-17
DE763069C (de) * 1935-02-28 1953-02-09 Rca Corp Schaltungsanordnung zur Phasenverschiebung von Impulsen
DE767199C (de) * 1935-03-27 1952-03-31 Telefunken Gmbh Schaltung zur Erzeugung kurzer Impulse
DE767529C (de) * 1936-03-17 1952-09-29 Telefunken Gmbh Einrichtung zur Erzeugung angenaehert rechteckiger, zur Modulation des Kennzeichensenders dienender Abtastimpulse bei einem Verfahren zur Richtungsbestimmung mittels Drehfunkfeuer
DE757154C (de) * 1938-02-16 1952-09-15 Csf Impulsgenerator
DE755390C (de) * 1938-02-17 1953-08-10 Lorenz C Ag Anordnung zur Steuerung von Kippgeraeten mittels Synchronisier-impulsen, die eine Trennvorrichtung durchlaufen und dadurch an Flankensteilheit eingebuesst haben
DE767944C (de) * 1938-09-01 1955-04-07 Siemens App Einrichtung zur Erzeugung von elektrischen Messimpulsen mittels gittergesteuerter Elektronenroehren

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE869086C (de) * 1939-11-03 1957-07-11 Interessengemeinschaft Fuer Ru Verfahren zur Frequenzmodulation eines Schwingungskreises

Also Published As

Publication number Publication date
FR752532A (fr) 1933-09-25
NL103578C (enrdf_load_stackoverflow)
GB399408A (en) 1933-10-05
NL31724C (enrdf_load_stackoverflow)

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