FR2161744A1 - - Google Patents

Info

Publication number
FR2161744A1
FR2161744A1 FR7136797A FR7136797A FR2161744A1 FR 2161744 A1 FR2161744 A1 FR 2161744A1 FR 7136797 A FR7136797 A FR 7136797A FR 7136797 A FR7136797 A FR 7136797A FR 2161744 A1 FR2161744 A1 FR 2161744A1
Authority
FR
France
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.)
Granted
Application number
FR7136797A
Other languages
French (fr)
Other versions
FR2161744B1 (de
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.)
Alcatel CIT SA
Original Assignee
Alcatel CIT 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
Priority to BE789644D priority Critical patent/BE789644A/xx
Application filed by Alcatel CIT SA filed Critical Alcatel CIT SA
Priority to FR7136797A priority patent/FR2161744B1/fr
Priority to FR7233530A priority patent/FR2199629B2/fr
Priority to NL7213636A priority patent/NL156288B/xx
Priority to LU66254D priority patent/LU66254A1/xx
Priority to SE1305272A priority patent/SE387498B/xx
Priority to DE19722249819 priority patent/DE2249819C2/de
Priority to CA154,147A priority patent/CA971666A/en
Priority to IT7021272A priority patent/IT975237B/it
Priority to GB4734272A priority patent/GB1357837A/en
Publication of FR2161744A1 publication Critical patent/FR2161744A1/fr
Application granted granted Critical
Publication of FR2161744B1 publication Critical patent/FR2161744B1/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
    • H04L25/4917—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using multilevel codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03828—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties
    • H04L25/03834—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties using pulse shaping
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/41—Bandwidth or redundancy reduction
    • H04N1/411—Bandwidth or redundancy reduction for the transmission or storage or reproduction of two-tone pictures, e.g. black and white pictures
    • H04N1/413—Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information
    • H04N1/4135—Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information in which a baseband signal showing more than two values or a continuously varying baseband signal is transmitted or recorded

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • Power Engineering (AREA)
  • Dc Digital Transmission (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
FR7136797A 1971-10-13 1971-10-13 Expired FR2161744B1 (de)

Priority Applications (10)

Application Number Priority Date Filing Date Title
BE789644D BE789644A (fr) 1971-10-13 Codeur a vitesse de transmission accrue
FR7136797A FR2161744B1 (de) 1971-10-13 1971-10-13
FR7233530A FR2199629B2 (de) 1971-10-13 1972-09-21
LU66254D LU66254A1 (de) 1971-10-13 1972-10-09
NL7213636A NL156288B (nl) 1971-10-13 1972-10-09 Codeer- en decodeerstelsel.
SE1305272A SE387498B (sv) 1971-10-13 1972-10-10 Anordning for kodning och avkodning av en biner signal
DE19722249819 DE2249819C2 (de) 1971-10-13 1972-10-11 Asynchrones Kodiergerät zur Umwandlung eines Binärsignals in ein Fünfpegelsignal
CA154,147A CA971666A (en) 1971-10-13 1972-10-12 Codeur a vitesse de transmission accrue
IT7021272A IT975237B (it) 1971-10-13 1972-10-12 Codificatore per la trasmissione di segnali binari ad elevata velo cita
GB4734272A GB1357837A (en) 1971-10-13 1972-10-13 Coding device for binary transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7136797A FR2161744B1 (de) 1971-10-13 1971-10-13

Publications (2)

Publication Number Publication Date
FR2161744A1 true FR2161744A1 (de) 1973-07-13
FR2161744B1 FR2161744B1 (de) 1977-08-05

Family

ID=9084310

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7136797A Expired FR2161744B1 (de) 1971-10-13 1971-10-13

Country Status (9)

Country Link
BE (1) BE789644A (de)
CA (1) CA971666A (de)
DE (1) DE2249819C2 (de)
FR (1) FR2161744B1 (de)
GB (1) GB1357837A (de)
IT (1) IT975237B (de)
LU (1) LU66254A1 (de)
NL (1) NL156288B (de)
SE (1) SE387498B (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2250898A (en) * 1990-12-12 1992-06-17 Stc Plc Line coding scheme.

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1579145A (de) * 1967-07-27 1969-08-22

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3337863A (en) * 1964-01-17 1967-08-22 Automatic Elect Lab Polybinary techniques
US3459892A (en) * 1965-09-14 1969-08-05 Bendix Corp Digital data transmission system wherein a binary level is represented by a change in the amplitude of the transmitted signal

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1579145A (de) * 1967-07-27 1969-08-22

Also Published As

Publication number Publication date
NL7213636A (de) 1973-04-17
NL156288B (nl) 1978-03-15
CA971666A (en) 1975-07-22
FR2161744B1 (de) 1977-08-05
LU66254A1 (de) 1973-04-13
IT975237B (it) 1974-07-20
DE2249819A1 (de) 1973-04-19
SE387498B (sv) 1976-09-06
DE2249819C2 (de) 1982-09-16
GB1357837A (en) 1974-06-26
BE789644A (fr) 1973-04-04

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Legal Events

Date Code Title Description
ST Notification of lapse