CH330684A - Installation de communication - Google Patents

Installation de communication

Info

Publication number
CH330684A
CH330684A CH330684DA CH330684A CH 330684 A CH330684 A CH 330684A CH 330684D A CH330684D A CH 330684DA CH 330684 A CH330684 A CH 330684A
Authority
CH
Switzerland
Prior art keywords
communication facility
facility
communication
Prior art date
Application number
Other languages
English (en)
Inventor
J Di Toro Michael
Original Assignee
Standard Telephone & Radio Sa
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 Standard Telephone & Radio Sa filed Critical Standard Telephone & Radio Sa
Publication of CH330684A publication Critical patent/CH330684A/fr

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
    • H04B1/667—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 using a division in frequency subbands
    • 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
    • H04B1/62—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 providing a predistortion of the signal in the transmitter and corresponding correction in the receiver, e.g. for improving the signal/noise ratio
    • H04B1/64—Volume compression or expansion arrangements
    • 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
    • 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
    • H04B1/662—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 using a time/frequency relationship, e.g. time compression or expansion

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
CH330684D 1953-09-22 1953-12-21 Installation de communication CH330684A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB26104/53A GB725915A (en) 1953-09-22 1953-09-22 Communication system

Publications (1)

Publication Number Publication Date
CH330684A true CH330684A (fr) 1958-06-15

Family

ID=10238429

Family Applications (1)

Application Number Title Priority Date Filing Date
CH330684D CH330684A (fr) 1953-09-22 1953-12-21 Installation de communication

Country Status (4)

Country Link
US (1) US2766325A (fr)
CH (1) CH330684A (fr)
FR (5) FR1093494A (fr)
GB (1) GB725915A (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2987614A (en) * 1952-02-06 1961-06-06 Claudius H M Roberts Secrecy voice radio communication system
US2939918A (en) * 1954-08-24 1960-06-07 Freedman Nathan System for compressing bandwidth
DE1139535B (de) * 1955-07-20 1962-11-15 Telefunken Patent Verfahren zur Aufzeichnung und Wiedergabe von Fernsehsignalen auf bzw. von einem magnetischen Aufzeichnungstraeger
US2990453A (en) * 1955-12-06 1961-06-27 James L Flanagan Automatic spectrum analyzer
US2860187A (en) * 1955-12-08 1958-11-11 Bell Telephone Labor Inc Artificial reconstruction of speech
US2958039A (en) * 1956-05-18 1960-10-25 Univ California Delay line time compressor
US2958733A (en) * 1958-12-23 1960-11-01 Bell Telephone Labor Inc Transmission control in a two way communication system
US3009105A (en) * 1959-06-22 1961-11-14 Bell Telephone Labor Inc Electrical stroboscope
US3112452A (en) * 1959-12-28 1963-11-26 Gen Electric Signal processing arrangement with filters in plural channels minimizing undesirableinterference to narrow and wide pass bands
US3105950A (en) * 1960-04-19 1963-10-01 Singer Inc H R B Bandwidth compression system
DE1537596B1 (de) * 1967-11-14 1970-09-03 Michel Copel Verfahren und Schaltungsanordnung zum Verbessern der Verstaendlichkeit frequenzverzerrter Sprache
US3684838A (en) * 1968-06-26 1972-08-15 Kahn Res Lab Single channel audio signal transmission system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2009438A (en) * 1931-07-31 1935-07-30 Bell Telephone Labor Inc Carrier wave transmission system
US2151091A (en) * 1935-10-30 1939-03-21 Bell Telephone Labor Inc Signal transmission
US2117739A (en) * 1936-06-05 1938-05-17 Bell Telephone Labor Inc Signaling system
BE455172A (fr) * 1943-04-05
US2509064A (en) * 1945-08-23 1950-05-23 Bell Telephone Labor Inc Reduction of noise in pulse position modulation systems

Also Published As

Publication number Publication date
GB725915A (en) 1955-03-09
FR83154E (fr) 1964-06-26
FR74686E (fr) 1960-12-26
FR69039E (fr) 1958-08-27
FR1093494A (fr) 1955-05-05
FR70513E (fr) 1959-05-29
US2766325A (en) 1956-10-09

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