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ES179489A1 - Mejoras en sistemas oscilantes modulados en frecuencia - Google Patents

Mejoras en sistemas oscilantes modulados en frecuencia

Info

Publication number
ES179489A1
ES179489A1 ES0179489A ES179489A ES179489A1 ES 179489 A1 ES179489 A1 ES 179489A1 ES 0179489 A ES0179489 A ES 0179489A ES 179489 A ES179489 A ES 179489A ES 179489 A1 ES179489 A1 ES 179489A1
Authority
ES
Spain
Prior art keywords
oscillating systems
frequency modulated
modulated oscillating
coupling
tank circuit
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
ES0179489A
Other languages
English (en)
Spanish (es)
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.)
Nokia Spain SA
Original Assignee
Alcatel Espana SA
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 Alcatel Espana SA filed Critical Alcatel Espana SA
Publication of ES179489A1 publication Critical patent/ES179489A1/es
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
    • H04Q1/442—Signalling arrangements; Manipulation of signalling currents using alternate current with out-of-voice band signalling frequencies
    • H04Q1/4423—Signalling arrangements; Manipulation of signalling currents using alternate current with out-of-voice band signalling frequencies using one signalling frequency
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/10—Angle modulation by means of variable impedance
    • H03C3/24—Angle modulation by means of variable impedance by means of a variable resistive element, e.g. tube

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Amplifiers (AREA)
  • Transmitters (AREA)
ES0179489A 1945-09-15 1947-08-28 Mejoras en sistemas oscilantes modulados en frecuencia Expired ES179489A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US616622A US2462905A (en) 1945-09-15 1945-09-15 Frequency modulated oscillating system

Publications (1)

Publication Number Publication Date
ES179489A1 true ES179489A1 (es) 1947-10-16

Family

ID=24470285

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0179489A Expired ES179489A1 (es) 1945-09-15 1947-08-28 Mejoras en sistemas oscilantes modulados en frecuencia

Country Status (6)

Country Link
US (1) US2462905A (xx)
BE (1) BE473144A (xx)
CH (1) CH270708A (xx)
ES (1) ES179489A1 (xx)
FR (1) FR938467A (xx)
GB (1) GB614066A (xx)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11336228B2 (en) 2016-07-08 2022-05-17 Rensselaer Polytechnic Institute High frequency push-push oscillator

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2121737A (en) * 1933-07-24 1938-06-21 Rca Corp Variable reactance modulator circuit
US2283793A (en) * 1939-06-07 1942-05-19 Emi Ltd High frequency modulated radio signal transmitter
US2321269A (en) * 1941-11-21 1943-06-08 Rca Corp Frequency modulation
US2382198A (en) * 1942-05-16 1945-08-14 Rca Corp Oscillator stabilizing circuit
US2421725A (en) * 1944-11-23 1947-06-03 Philco Corp Variable frequency cavity resonator oscillator

Also Published As

Publication number Publication date
US2462905A (en) 1949-03-01
FR938467A (fr) 1948-09-16
GB614066A (en) 1948-12-09
CH270708A (fr) 1950-09-15
BE473144A (xx)

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