CA961978A - Frequency band converter - Google Patents

Frequency band converter

Info

Publication number
CA961978A
CA961978A CA111,377A CA111377A CA961978A CA 961978 A CA961978 A CA 961978A CA 111377 A CA111377 A CA 111377A CA 961978 A CA961978 A CA 961978A
Authority
CA
Canada
Prior art keywords
frequency band
band converter
converter
frequency
band
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
CA111,377A
Other languages
English (en)
Other versions
CA111377S (en
Inventor
John L. Searle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Raytheon Co
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
Application granted granted Critical
Publication of CA961978A publication Critical patent/CA961978A/en
Expired legal-status Critical Current

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 ultrasonic, sonic 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)
CA111,377A 1970-05-07 1971-04-26 Frequency band converter Expired CA961978A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
CA961978A true CA961978A (en) 1975-01-28

Family

ID=21882295

Family Applications (1)

Application Number Title Priority Date Filing Date
CA111,377A Expired CA961978A (en) 1970-05-07 1971-04-26 Frequency band converter

Country Status (7)

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

Cited By (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

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2219658C2 (ru) * 2001-02-12 2003-12-20 Поволжская государственная академия телекоммуникаций и информатики Устройство сжатия и восстановления ширины спектра информационных электрических сигналов с ограниченной полосой частот

Cited By (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
DE2122261B2 (de) 1975-03-13
FR2091111A5 (fr) 1972-01-14
CH546457A (de) 1974-02-28
DE2122261A1 (de) 1971-11-18
NL7106153A (fr) 1971-11-09
BE766768A (fr) 1971-10-01
GB1325621A (en) 1973-08-08

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