FR68402E - Systèmes de communication par impulsions codées - Google Patents

Systèmes de communication par impulsions codées

Info

Publication number
FR68402E
FR68402E FR68402DA FR68402E FR 68402 E FR68402 E FR 68402E FR 68402D A FR68402D A FR 68402DA FR 68402 E FR68402 E FR 68402E
Authority
FR
France
Prior art keywords
communication systems
pulse code
code communication
pulse
systems
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
Other languages
English (en)
Inventor
Martin Janke
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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
Priority claimed from US269561A external-priority patent/US2738463A/en
Priority claimed from US283857A external-priority patent/US2795650A/en
Application filed by International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of FR68402E publication Critical patent/FR68402E/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/007—Volume compression or expansion in amplifiers of digital or coded signals
    • 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
    • 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
    • H04B14/04—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse code modulation
    • H04B14/046—Systems or methods for reducing noise or bandwidth
    • H04B14/048—Non linear compression or expansion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
FR68402D 1952-02-01 1958-04-30 Systèmes de communication par impulsions codées Expired FR68402E (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US269561A US2738463A (en) 1952-02-01 1952-02-01 Pulse code expander
US283857A US2795650A (en) 1952-04-23 1952-04-23 Compandor control system
DE68402X 1952-06-28

Publications (1)

Publication Number Publication Date
FR68402E true FR68402E (fr) 1958-04-30

Family

ID=32233764

Family Applications (1)

Application Number Title Priority Date Filing Date
FR68402D Expired FR68402E (fr) 1952-02-01 1958-04-30 Systèmes de communication par impulsions codées

Country Status (1)

Country Link
FR (1) FR68402E (fr)

Similar Documents

Publication Publication Date Title
FR1092675A (fr) Systèmes radio-émetteurs-récepteurs
CH276277A (fr) Installation de communication par impulsions.
FR1044624A (fr) Perfectionnements aux systèmes de modulation par impulsions électriques codées
FR1076960A (fr) Systèmes de communication par impulsions codées
FR1090001A (fr) Systèmes de communication par impulsions électriques
FR57637E (fr) Systèmes de communication par impulsions électriques
BE603985A (fr) Système de communication par impulsions
CH320949A (it) Dispositivo spruzzatore
FR987020A (fr) Systèmes de communications électriques par impulsions
FR983196A (fr) Systèmes de modulation par impulsions codées
CH307830A (fr) Modulateur pour installation de transmission par impulsions codées.
FR68402E (fr) Systèmes de communication par impulsions codées
FR67255E (fr) Systèmes de communication par impulsions codées
FR69076E (fr) Systèmes de communication par impulsions codées
FR80562E (fr) Systèmes de communication par impulsions codées
FR1047174A (fr) Systèmes de communication par impulsions électriques
FR66152E (fr) Dispositif de modulation pour systèmes de communication par impulsions codées
FR70712E (fr) Système de communication par impulsions codées
FR946323A (fr) Systèmes de communication par impulsions
NL172387B (nl) Telecommunicatiestelsel.
FR1144313A (fr) Perfectionnements aux systèmes de communication par impulsions
FR1076989A (fr) Systèmes de communication par courants porteurs
FR1110655A (fr) Systèmes de télécommunication électriques par impulsions
FR1114054A (fr) Perfectionnements aux systèmes de transmission par impulsions
FR63464E (fr) Système de transmission à impulsions codées