CH246395A - Transmit / receive circuit for shortwave. - Google Patents

Transmit / receive circuit for shortwave.

Info

Publication number
CH246395A
CH246395A CH246395DA CH246395A CH 246395 A CH246395 A CH 246395A CH 246395D A CH246395D A CH 246395DA CH 246395 A CH246395 A CH 246395A
Authority
CH
Switzerland
Prior art keywords
shortwave
transmit
receive circuit
receive
circuit
Prior art date
Application number
Other languages
German (de)
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
Application filed by Philips Nv filed Critical Philips Nv
Priority to NL118229 priority
Publication of CH246395A publication Critical patent/CH246395A/en

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
CH246395D 1943-07-23 1944-07-21 Transmit / receive circuit for shortwave. CH246395A (en)

Priority Applications (2)

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

Publications (1)

Publication Number Publication Date
CH246395A true CH246395A (en) 1946-12-31

Family

ID=26641563

Family Applications (2)

Application Number Title Priority Date Filing Date
CH246395D CH246395A (en) 1943-07-23 1944-07-21 Transmit / receive circuit for shortwave.
CH255008D CH255008A (en) 1943-07-23 1946-07-22 Transmit / receive circuit for shortwave.

Family Applications After (1)

Application Number Title Priority Date Filing Date
CH255008D CH255008A (en) 1943-07-23 1946-07-22 Transmit / receive circuit for shortwave.

Country Status (7)

Country Link
US (2) US2505655A (en)
BE (2) BE466841A (en)
CH (2) CH246395A (en)
DE (2) DE869090C (en)
FR (2) FR906033A (en)
GB (2) GB623069A (en)
NL (2) NL61584C (en)

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 (en) * 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 (en) * 1929-04-24 1930-01-22 Frequency changer device for radio signaling
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 (en) * 1931-03-23 1932-10-13 Marconi Wireless Telegraph Co Improvements to thermo-electronic amplifier systems and their application to high frequency receiving devices
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 (en) * 1933-12-13
US2205359A (en) * 1938-06-24 1940-06-18 Hygrade Sylvania Corp Superheterodyne receiver
NL58997C (en) * 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
GB623069A (en) 1949-05-11
BE466841A (en)
US2505655A (en) 1950-04-25
FR75251E (en) 1961-10-04
NL61584C (en)
CH255008A (en) 1948-05-31
US2503782A (en) 1950-04-11
GB628862A (en) 1949-09-06
DE869090C (en) 1953-03-02
DE872235C (en) 1953-03-30
BE456891A (en)
FR906033A (en) 1945-12-20
NL67076C (en)

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