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
Application filed by Philips Nv filed Critical Philips Nv
Publication of CH246395A publication Critical patent/CH246395A/en

Links

Classifications

    • 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
    • H04B1/38—Transceivers, 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
    • H04B1/40—Circuits
    • H04B1/50—Circuits using different frequencies for the two directions of communication
    • 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
    • H03D7/14—Balanced arrangements
    • H03D7/1416—Balanced arrangements with discharge tubes having more than 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
    • H04B1/38—Transceivers, 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
    • H04B1/40—Circuits
    • H04B1/44—Transmit/receive switching
    • 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
    • H04B1/38—Transceivers, 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
    • H04B1/40—Circuits
    • H04B1/44—Transmit/receive switching
    • H04B1/46—Transmit/receive switching by voice-frequency signals; by pilot signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Transceivers (AREA)
  • Superheterodyne Receivers (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
CH246395D 1943-07-23 1944-07-21 Transmit / receive circuit for shortwave. CH246395A (en)

Applications Claiming Priority (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) NL67076C (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
JPS5279815A (en) * 1975-12-26 1977-07-05 Nec Corp Transmitting and receiving circuit
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
NL43529C (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
FR75251E (en) 1961-10-04
GB628862A (en) 1949-09-06
US2503782A (en) 1950-04-11
CH255008A (en) 1948-05-31
DE869090C (en) 1953-03-02
BE466841A (en)
US2505655A (en) 1950-04-25
NL61584C (en)
BE456891A (en)
GB623069A (en) 1949-05-11
NL67076C (en)
FR906033A (en) 1945-12-20
DE872235C (en) 1953-03-30

Similar Documents

Publication Publication Date Title
CH256408A (en) Motocultor.
CH255008A (en) Transmit / receive circuit for shortwave.
CH261402A (en) Stylograph.
CH247010A (en) Stylograph.
CH234446A (en) Frequency relay.
CH257935A (en) Aircraft.
FR942770A (en) Printing telegraphs
CH261676A (en) Montre-réveil.
CH241790A (en) Superposition receiving circuit.
DK76782C (en) Electronic relay connection.
CH261634A (en) Lubricant.
CH231029A (en) Aids for planting.
CH269215A (en) Slide rule.
AT168030B (en) Mixed circuit
CH231856A (en) Suction device for calves.
CH254293A (en) Oscilloscope circuit.
DK65360C (en) High frequency transmission line.
CH225925A (en) Circuit for power converter systems.
ES9035Y (en) Rule.
DK74212C (en) Alien-controlled speed-modulated shortwave tube.
CH252031A (en) Intercom.
DK69478C (en) Kande.
ES9241Y (en) Secafirmas.
DK69956C (en) Shagpibe.
DK62411C (en) Barberomatomat.