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CH232472A - Relaisstation zur Übertragung von Hochfrequenzschwingungen. - Google Patents

Relaisstation zur Übertragung von Hochfrequenzschwingungen.

Info

Publication number
CH232472A
CH232472A CH232472DA CH232472A CH 232472 A CH232472 A CH 232472A CH 232472D A CH232472D A CH 232472DA CH 232472 A CH232472 A CH 232472A
Authority
CH
Switzerland
Prior art keywords
transmission
high frequency
relay station
frequency oscillations
oscillations
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 CH232472A publication Critical patent/CH232472A/de

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
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/26—Circuits for superheterodyne receivers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B21/00—Generation of oscillations by combining unmodulated signals of different frequencies
    • H03B21/01—Generation of oscillations by combining unmodulated signals of different frequencies by beating unmodulated signals of different frequencies
    • H03B21/02—Generation of oscillations by combining unmodulated signals of different frequencies by beating unmodulated signals of different frequencies by plural beating, i.e. for frequency synthesis ; Beating in combination with multiplication or division of frequency
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/02—Details

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
CH232472D 1940-01-27 1941-08-13 Relaisstation zur Übertragung von Hochfrequenzschwingungen. CH232472A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US315998A US2228815A (en) 1940-01-27 1940-01-27 Frequency conversion system

Publications (1)

Publication Number Publication Date
CH232472A true CH232472A (de) 1944-05-31

Family

ID=23227015

Family Applications (1)

Application Number Title Priority Date Filing Date
CH232472D CH232472A (de) 1940-01-27 1941-08-13 Relaisstation zur Übertragung von Hochfrequenzschwingungen.

Country Status (4)

Country Link
US (1) US2228815A (de)
CA (1) CA411423A (de)
CH (1) CH232472A (de)
FR (1) FR869542A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE964691C (de) * 1951-01-12 1957-05-29 Rca Corp Relaisstation

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2502294A (en) * 1943-08-19 1950-03-28 Wallace Marcel Double sweep panoramic radio receiver
GB579567A (en) * 1943-10-07 1946-08-08 Marconi Wireless Telegraph Co Improvements in frequency controlling and stabilising means in radio-apparatus and the like
US2643329A (en) * 1945-05-14 1953-06-23 Standard Telephones Cables Ltd Tracking system between receiver and transmitter
US2501591A (en) * 1945-08-27 1950-03-21 Premier Crystal Lab Inc Multiband superheterodyne radio receiver having a push-button station selector
US2656459A (en) * 1945-10-30 1953-10-20 John H Tinlot Wide frequency coverage beacon receiver
US2555391A (en) * 1946-03-04 1951-06-05 Arthur A Glass Radio oscillator control
US2451430A (en) * 1946-04-23 1948-10-12 Jefferson Standard Broadcastin Carrier frequency shift signaling
US2666141A (en) * 1946-05-08 1954-01-12 James K Clapp Single side band mixer for moving target indicating radar systems
US2509963A (en) * 1947-01-30 1950-05-30 Collins Radio Co Radio receiving and frequency conversion system
US2647992A (en) * 1948-12-03 1953-08-04 Gen Electric Frequency stabilized radio receiving system
US2633492A (en) * 1948-12-30 1953-03-31 Bell Telephone Labor Inc Guided wave frequency range, frequency selective and equalizing structure
US2710343A (en) * 1950-08-09 1955-06-07 Dale Belford Secrecy system for transmitting television signals
US2800580A (en) * 1952-04-21 1957-07-23 Philco Corp Delay system
DE1276144B (de) * 1962-09-19 1968-08-29 Siemens Ag Richtfunksystem mit Winkelmodulation
US4991144A (en) * 1963-03-29 1991-02-05 The United States Of America As Represented By The Secretary Of The Navy Dopplerized echo repeater
US3921123A (en) * 1967-02-02 1975-11-18 Us Navy Torpedo target simulator
US3733438A (en) * 1971-03-01 1973-05-15 Bell Telephone Labor Inc Carrier supply for frequency division multiplexed systems
USRE31295E (en) * 1971-03-01 1983-06-28 Bell Telephone Laboratories, Incorporated Carrier supply for frequency division multiplexed systems
US4083004A (en) * 1976-06-08 1978-04-04 Westinghouse Electric Corporation Expendable repeater employing harmonic mixing
JPS58176459U (ja) * 1982-05-19 1983-11-25 アルプス電気株式会社 局部発振器用増幅器

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE964691C (de) * 1951-01-12 1957-05-29 Rca Corp Relaisstation

Also Published As

Publication number Publication date
CA411423A (en) 1943-03-30
US2228815A (en) 1941-01-14
FR869542A (fr) 1942-02-04

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