BE766768A - Convertisseur de bandes de frequences - Google Patents

Convertisseur de bandes de frequences

Info

Publication number
BE766768A
BE766768A BE766768A BE766768A BE766768A BE 766768 A BE766768 A BE 766768A BE 766768 A BE766768 A BE 766768A BE 766768 A BE766768 A BE 766768A BE 766768 A BE766768 A BE 766768A
Authority
BE
Belgium
Prior art keywords
frequency band
band converter
converter
frequency
band
Prior art date
Application number
BE766768A
Other languages
English (en)
French (fr)
Inventor
J L Searle
Original Assignee
Raytheon Co
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 Raytheon Co filed Critical Raytheon Co
Publication of BE766768A publication Critical patent/BE766768A/xx

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
    • H04B1/66—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 for reducing bandwidth of signals; for improving efficiency of transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B11/00—Transmission systems employing sonic, ultrasonic or infrasonic waves
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B14/00—Transmission systems not characterised by the medium used for transmission
    • H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
    • H04B14/06—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using differential modulation, e.g. delta modulation
    • H04B14/062—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using differential modulation, e.g. delta modulation using delta modulation or one-bit differential modulation [1DPCM]

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Analogue/Digital Conversion (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
BE766768A 1970-05-07 1971-05-05 Convertisseur de bandes de frequences BE766768A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US3537570A 1970-05-07 1970-05-07

Publications (1)

Publication Number Publication Date
BE766768A true BE766768A (fr) 1971-10-01

Family

ID=21882295

Family Applications (1)

Application Number Title Priority Date Filing Date
BE766768A BE766768A (fr) 1970-05-07 1971-05-05 Convertisseur de bandes de frequences

Country Status (7)

Country Link
BE (1) BE766768A (de)
CA (1) CA961978A (de)
CH (1) CH546457A (de)
DE (1) DE2122261B2 (de)
FR (1) FR2091111A5 (de)
GB (1) GB1325621A (de)
NL (1) NL7106153A (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4342104A (en) * 1979-11-02 1982-07-27 University Court Of The University Of Edinburgh Helium-speech communication

Also Published As

Publication number Publication date
NL7106153A (de) 1971-11-09
DE2122261A1 (de) 1971-11-18
FR2091111A5 (de) 1972-01-14
GB1325621A (en) 1973-08-08
DE2122261B2 (de) 1975-03-13
CH546457A (de) 1974-02-28
CA961978A (en) 1975-01-28

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