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CH309361A - Schaltung zur Frequenzwandlung von in einem Radiogerät empfangenen Hochfrequenzschwingungen. - Google Patents

Schaltung zur Frequenzwandlung von in einem Radiogerät empfangenen Hochfrequenzschwingungen.

Info

Publication number
CH309361A
CH309361A CH309361DA CH309361A CH 309361 A CH309361 A CH 309361A CH 309361D A CH309361D A CH 309361DA CH 309361 A CH309361 A CH 309361A
Authority
CH
Switzerland
Prior art keywords
circuit
radio device
high frequency
vibrations received
frequency conversion
Prior art date
Application number
Other languages
English (en)
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 CH309361A publication Critical patent/CH309361A/de

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Superheterodyne Receivers (AREA)
CH309361D 1952-01-21 1953-01-19 Schaltung zur Frequenzwandlung von in einem Radiogerät empfangenen Hochfrequenzschwingungen. CH309361A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL309361X 1952-01-21

Publications (1)

Publication Number Publication Date
CH309361A true CH309361A (de) 1955-08-31

Family

ID=19783579

Family Applications (1)

Application Number Title Priority Date Filing Date
CH309361D CH309361A (de) 1952-01-21 1953-01-19 Schaltung zur Frequenzwandlung von in einem Radiogerät empfangenen Hochfrequenzschwingungen.

Country Status (5)

Country Link
US (1) US2812433A (de)
BE (1) BE517017A (de)
CH (1) CH309361A (de)
FR (1) FR1069939A (de)
GB (1) GB718959A (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2964623A (en) * 1958-02-11 1960-12-13 Zenith Radio Corp Receiver having two input sources and respective tuning means, one of which, when selected, grounds the non-used source for both incoming interference and outgoing radiation signals
US3036212A (en) * 1958-08-18 1962-05-22 Nurnberger Schwachstrom Bauele Combined television channel switch
US2978578A (en) * 1959-01-28 1961-04-04 Philco Corp Improved transistorized mixing circuit
GB1284007A (en) * 1969-09-17 1972-08-02 Matsushita Electric Ind Co Ltd Am-fm radio receiver
US4825467A (en) * 1986-11-25 1989-04-25 International Telesystems, Inc. Restricted access television transmission system

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1757325A (en) * 1925-08-24 1930-05-06 Drahtlose Telegraphie Gmbh Receiver for undamped oscillations
CH174230A (de) * 1933-05-11 1934-12-31 Telefunken Gmbh Zwischenfrequenz-Empfänger.
GB455649A (en) * 1935-04-26 1936-10-26 Marconi Wireless Telegraph Co Improvements in or relating to radio receivers
GB502178A (en) * 1937-08-12 1939-03-13 Bernard John Banfield Improvements in or relating to radio receivers and the like
US2261778A (en) * 1939-03-31 1941-11-04 Rca Corp Radio tuning
US2278030A (en) * 1940-07-19 1942-03-31 Zenith Radio Corp Radio receiving apparatus
US2516272A (en) * 1945-12-07 1950-07-25 Philco Corp Frequency conversion system
US2512481A (en) * 1947-06-25 1950-06-20 Avco Mfg Corp Antenna input circuits

Also Published As

Publication number Publication date
US2812433A (en) 1957-11-05
GB718959A (en) 1954-11-24
BE517017A (de)
FR1069939A (fr) 1954-07-13

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