CH255008A - Sende-Empfangsschaltung für Kurzwellen. - Google Patents

Sende-Empfangsschaltung für Kurzwellen.

Info

Publication number
CH255008A
CH255008A CH255008DA CH255008A CH 255008 A CH255008 A CH 255008A CH 255008D A CH255008D A CH 255008DA CH 255008 A CH255008 A CH 255008A
Authority
CH
Switzerland
Prior art keywords
shortwave
transmit
receive circuit
receive
circuit
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
Priority to NL112335 priority Critical
Priority to NL118229 priority
Application filed by Philips Nv filed Critical Philips Nv
Publication of CH255008A publication Critical patent/CH255008A/de

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/38Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40Circuits
    • H04B1/50Circuits using different frequencies for the two directions of communication
    • HELECTRICITY
    • H03BASIC ELECTRONIC CIRCUITRY
    • H03DDEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/14Balanced arrangements
    • H03D7/1416Balanced arrangements with discharge tubes having more than two electrodes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/38Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40Circuits
    • H04B1/44Transmit/receive switching
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/38Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40Circuits
    • H04B1/44Transmit/receive switching
    • H04B1/46Transmit/receive switching by voice-frequency signals; by pilot signals
CH255008D 1943-07-23 1946-07-22 Sende-Empfangsschaltung für Kurzwellen. CH255008A (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
NL112335 1943-07-23
NL118229 1944-07-28

Publications (1)

Publication Number Publication Date
CH255008A true CH255008A (de) 1948-05-31

Family

ID=26641563

Family Applications (2)

Application Number Title Priority Date Filing Date
CH246395D CH246395A (de) 1943-07-23 1944-07-21 Sende-Empfangsschaltung für Kurzwellen.
CH255008D CH255008A (de) 1943-07-23 1946-07-22 Sende-Empfangsschaltung für Kurzwellen.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CH246395D CH246395A (de) 1943-07-23 1944-07-21 Sende-Empfangsschaltung für Kurzwellen.

Country Status (7)

Country Link
US (2) US2505655A (de)
BE (2) BE456891A (de)
CH (2) CH246395A (de)
DE (2) DE869090C (de)
FR (2) FR906033A (de)
GB (2) GB623069A (de)
NL (2) NL67076C (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2625650A (en) * 1948-10-16 1953-01-13 Sperry Corp Superregenerative apparatus
US2836663A (en) * 1953-04-21 1958-05-27 Motorola Inc Radio-phonograph combination
US2886653A (en) * 1953-08-31 1959-05-12 Rca Corp Amplitude modulated oscillator systems
US2813155A (en) * 1954-02-23 1957-11-12 Motorola Inc Tone control for radio-phonograph combination
US2853559A (en) * 1954-05-03 1958-09-23 Underwood Corp Signal transfer selector
US3624506A (en) * 1970-03-23 1971-11-30 John S Townsend Two-way electronic frequency converter
JPS5413327B2 (de) * 1975-12-26 1979-05-30
GB2128851A (en) * 1982-09-24 1984-05-02 Jasco International Radio communication systems

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR673968A (fr) * 1929-04-24 1930-01-22 Dispositif changeur de fréquence pour radiosignalisation
US1769920A (en) * 1929-04-30 1930-07-08 Bell Telephone Labor Inc Electrooptical transmission system
US1974184A (en) * 1931-03-04 1934-09-18 Rca Corp Radio apparatus
FR733947A (fr) * 1931-03-23 1932-10-13 Marconi Wireless Telegraph Co Perfectionnements aux systèmes amplificateurs thermo-électroniques et à leur application aux appareils récepteurs à haute fréquence
US1935316A (en) * 1931-09-16 1933-11-14 Bell Telephone Labor Inc Detector
US2128422A (en) * 1933-01-26 1938-08-30 Rca Corp Ultrashort wave circuit
US2018569A (en) * 1933-06-17 1935-10-22 Rca Corp Radio signaling apparatus
BE406777A (de) * 1933-12-13
US2205359A (en) * 1938-06-24 1940-06-18 Hygrade Sylvania Corp Superheterodyne receiver
NL58997C (de) * 1940-05-30
US2434474A (en) * 1941-01-28 1948-01-13 Hartford Nat Bank & Trust Co Circuit arrangement for ultra short waves
US2296107A (en) * 1941-05-09 1942-09-15 Rca Corp Ultra high frequency converter

Also Published As

Publication number Publication date
FR75251E (fr) 1961-10-04
DE869090C (de) 1953-03-02
US2503782A (en) 1950-04-11
CH246395A (de) 1946-12-31
DE872235C (de) 1953-03-30
BE466841A (de)
FR906033A (fr) 1945-12-20
NL61584C (de)
US2505655A (en) 1950-04-25
GB623069A (en) 1949-05-11
GB628862A (en) 1949-09-06
BE456891A (de)
NL67076C (de)

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