FR70712E - Système de communication par impulsions codées - Google Patents

Système de communication par impulsions codées

Info

Publication number
FR70712E
FR70712E FR70712DA FR70712E FR 70712 E FR70712 E FR 70712E FR 70712D A FR70712D A FR 70712DA FR 70712 E FR70712 E FR 70712E
Authority
FR
France
Prior art keywords
communication system
pulse code
code communication
pulse
communication
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
Robert Wallace Hughes
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
Priority claimed from GB20297/54A external-priority patent/GB750579A/en
Priority claimed from US493103A external-priority patent/US2912506A/en
Application filed by International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of FR70712E publication Critical patent/FR70712E/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
FR70712D 1952-02-01 1959-07-10 Système de communication par impulsions codées Expired FR70712E (fr)

Applications Claiming Priority (6)

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
GB20297/54A GB750579A (en) 1954-07-12 1954-07-12 Improvements in or relating to electric pulse code modulation systems
GB2960574X 1954-07-12
US493103A US2912506A (en) 1955-03-09 1955-03-09 Communication system

Publications (1)

Publication Number Publication Date
FR70712E true FR70712E (fr) 1959-07-10

Family

ID=32234464

Family Applications (1)

Application Number Title Priority Date Filing Date
FR70712D Expired FR70712E (fr) 1952-02-01 1959-07-10 Système de communication par impulsions codées

Country Status (1)

Country Link
FR (1) FR70712E (fr)

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