BE525820A - - Google Patents

Info

Publication number
BE525820A
BE525820A BE525820DA BE525820A BE 525820 A BE525820 A BE 525820A BE 525820D A BE525820D A BE 525820DA BE 525820 A BE525820 A BE 525820A
Authority
BE
Belgium
Application number
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.)
Publication of BE525820A publication Critical patent/BE525820A/xx

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/38—Angle modulation by converting amplitude modulation to angle modulation
    • H03C3/40—Angle modulation by converting amplitude modulation to angle modulation using two signal paths the outputs of which have a predetermined phase difference and at least one output being amplitude-modulated
    • 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
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/20—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising resistance and either capacitance or inductance, e.g. phase-shift oscillator
    • H03B5/26—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising resistance and either capacitance or inductance, e.g. phase-shift oscillator frequency-determining element being part of bridge circuit in closed ring around which signal is transmitted; frequency-determining element being connected via a bridge circuit to such a closed ring, e.g. Wien-Bridge oscillator, parallel-T oscillator
    • H03B5/28—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising resistance and either capacitance or inductance, e.g. phase-shift oscillator frequency-determining element being part of bridge circuit in closed ring around which signal is transmitted; frequency-determining element being connected via a bridge circuit to such a closed ring, e.g. Wien-Bridge oscillator, parallel-T oscillator active element in amplifier being vacuum tube
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H04L27/12—Modulator circuits; Transmitter circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
  • Transmitters (AREA)
BE525820D 1953-01-19 BE525820A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL175377 1953-01-19

Publications (1)

Publication Number Publication Date
BE525820A true BE525820A (xx)

Family

ID=32464668

Family Applications (1)

Application Number Title Priority Date Filing Date
BE525820D BE525820A (xx) 1953-01-19

Country Status (7)

Country Link
US (1) US2814020A (xx)
BE (1) BE525820A (xx)
DE (1) DE971380C (xx)
ES (1) ES213186A1 (xx)
FR (1) FR1096918A (xx)
GB (1) GB754216A (xx)
NL (1) NL86726C (xx)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2944226A (en) * 1954-11-10 1960-07-05 Lockheed Aircraft Corp Frequency modulation signal generator
US3002159A (en) * 1957-12-30 1961-09-26 Daystrom Inc Oscillator
US2962670A (en) * 1958-05-02 1960-11-29 Electronic Eng Co Modulatable transistor oscillator
US2978653A (en) * 1958-10-08 1961-04-04 Daystrom Inc Frequency modulated dual feedback phase shift oscillator
US3023377A (en) * 1958-12-29 1962-02-27 Electro Mechanical Res Inc Frequency modulation systems
BE664565A (xx) * 1964-05-28

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2268872A (en) * 1939-07-11 1942-01-06 Hewlett Packard Co Variable frequency oscillation generator
US2321269A (en) * 1941-11-21 1943-06-08 Rca Corp Frequency modulation
US2451858A (en) * 1945-01-26 1948-10-19 Gen Electric Controlled frequency oscillator
GB617139A (en) * 1946-09-20 1949-02-01 Standard Tetephones And Cables Improvements in or relating to arrangements for modulating the frequency of an electric carrier wave
BE483758A (xx) * 1947-02-20
FR966138A (xx) * 1947-05-10 1950-09-30
US2496148A (en) * 1948-09-29 1950-01-31 Melpar Inc Frequency modulator and time division multiplex system
DE851359C (de) * 1951-03-14 1952-10-02 Siemens Ag Schaltungsanordnung zur Steuerung der Schwingungsfrequenz eines rueckgekoppelten Schwingungserzeugers, insbesondere fuer die Frequenzumtastung bei Wechselstromtelegraphie

Also Published As

Publication number Publication date
FR1096918A (fr) 1955-06-28
ES213186A1 (es) 1954-04-01
NL86726C (xx)
GB754216A (en) 1956-08-08
DE971380C (de) 1959-01-22
US2814020A (en) 1957-11-19

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