FR1189131A - Dispositif changeur de fréquence additif auto-oscillant - Google Patents

Dispositif changeur de fréquence additif auto-oscillant

Info

Publication number
FR1189131A
FR1189131A FR1189131DA FR1189131A FR 1189131 A FR1189131 A FR 1189131A FR 1189131D A FR1189131D A FR 1189131DA FR 1189131 A FR1189131 A FR 1189131A
Authority
FR
France
Prior art keywords
oscillating
self
frequency changer
changer device
additive 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
English (en)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken 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 Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR1189131A publication Critical patent/FR1189131A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/06—Transference of modulation from one carrier to another, e.g. frequency-changing by means of discharge tubes having more than two electrodes
    • H03D7/08—Transference of modulation from one carrier to another, e.g. frequency-changing by means of discharge tubes having more than two electrodes the signals to be mixed being applied between the same two electrodes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/163—Special arrangements for the reduction of the damping of resonant circuits of receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B15/00—Suppression or limitation of noise or interference
    • H04B15/02—Reducing interference from electric apparatus by means located at or near the interfering apparatus
    • H04B15/04—Reducing interference from electric apparatus by means located at or near the interfering apparatus the interference being caused by substantially sinusoidal oscillations, e.g. in a receiver or in a tape-recorder
    • H04B15/06—Reducing interference from electric apparatus by means located at or near the interfering apparatus the interference being caused by substantially sinusoidal oscillations, e.g. in a receiver or in a tape-recorder by local oscillators of receivers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
FR1189131D 1956-08-24 1957-08-22 Dispositif changeur de fréquence additif auto-oscillant Expired FR1189131A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP16889A DE1087183B (de) 1956-08-24 1956-08-24 Selbstschwingende, additive Mischstufe

Publications (1)

Publication Number Publication Date
FR1189131A true FR1189131A (fr) 1959-09-29

Family

ID=6780371

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1189131D Expired FR1189131A (fr) 1956-08-24 1957-08-22 Dispositif changeur de fréquence additif auto-oscillant

Country Status (5)

Country Link
US (1) US2928936A (enrdf_load_html_response)
DE (1) DE1087183B (enrdf_load_html_response)
FR (1) FR1189131A (enrdf_load_html_response)
GB (1) GB851229A (enrdf_load_html_response)
NL (2) NL105942C (enrdf_load_html_response)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL261732A (enrdf_load_html_response) * 1960-02-29

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE406777A (enrdf_load_html_response) * 1933-12-13
DE688531C (de) * 1937-06-05 1940-02-23 Telefunken Gmbh Durch Gegenkopplung linearisierter, aperiodischer Hochfrequenzverstaerker
GB533558A (en) * 1939-11-07 1941-02-14 Gen Electric Co Ltd Improvements in high frequency amplifiers including thermionic valves
BE455595A (enrdf_load_html_response) * 1943-05-03
DE938552C (de) * 1951-09-20 1956-02-02 Siemens Ag Schaltungsanordnung fuer UEberlagerungsempfaenger
US2713634A (en) * 1952-04-10 1955-07-19 Rca Corp Mixer circuit
NL176033B (nl) * 1953-02-12 Eastman Kodak Co Kleurbeeldvormende inrichting met een aantal lichtgevoelige elementen, welke gevoelig zijn voor verschillende spectraalgebieden.
US2789213A (en) * 1955-06-02 1957-04-16 Zenith Radio Corp Cascode amplifier-mixer with trap to prevent local oscillator in driven stage from affecting driving stage

Also Published As

Publication number Publication date
GB851229A (en) 1960-10-12
US2928936A (en) 1960-03-15
NL220065A (enrdf_load_html_response)
DE1087183B (de) 1960-08-18
NL105942C (enrdf_load_html_response)

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