FR950746A - Systèmes de communications duplex à fréquence porteuse - Google Patents

Systèmes de communications duplex à fréquence porteuse

Info

Publication number
FR950746A
FR950746A FR950746DA FR950746A FR 950746 A FR950746 A FR 950746A FR 950746D A FR950746D A FR 950746DA FR 950746 A FR950746 A FR 950746A
Authority
FR
France
Prior art keywords
carrier frequency
communications systems
duplex communications
frequency duplex
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)
French (fr)
Inventor
Donald David Grieg
Lester Dubin
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
Application filed by International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of FR950746A publication Critical patent/FR950746A/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
    • 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
    • H04B14/026—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse time characteristics modulation, e.g. width, position, interval

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
FR950746D 1946-03-09 1947-08-01 Systèmes de communications duplex à fréquence porteuse Expired FR950746A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US950746XA 1946-03-09 1946-03-09

Publications (1)

Publication Number Publication Date
FR950746A true FR950746A (fr) 1949-10-05

Family

ID=22249303

Family Applications (1)

Application Number Title Priority Date Filing Date
FR950746D Expired FR950746A (fr) 1946-03-09 1947-08-01 Systèmes de communications duplex à fréquence porteuse

Country Status (2)

Country Link
BE (1) BE478610A (cs)
FR (1) FR950746A (cs)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3504118A (en) * 1965-08-20 1970-03-31 Siemens Ag Method and apparatus for the additional transmission of communications over lines
EP0072857A4 (en) * 1981-02-26 1985-07-01 Gen Electric DATA TRANSFER SYSTEM.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3504118A (en) * 1965-08-20 1970-03-31 Siemens Ag Method and apparatus for the additional transmission of communications over lines
EP0072857A4 (en) * 1981-02-26 1985-07-01 Gen Electric DATA TRANSFER SYSTEM.

Also Published As

Publication number Publication date
BE478610A (cs)

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