FR1394671A - Système de modulation par impulsions codées - Google Patents

Système de modulation par impulsions codées

Info

Publication number
FR1394671A
FR1394671A FR975299A FR975299A FR1394671A FR 1394671 A FR1394671 A FR 1394671A FR 975299 A FR975299 A FR 975299A FR 975299 A FR975299 A FR 975299A FR 1394671 A FR1394671 A FR 1394671A
Authority
FR
France
Prior art keywords
modulation system
pulse code
code modulation
pulse
modulation
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
FR975299A
Other languages
English (en)
Inventor
Kenneth William Cattermole
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 GB20847/63A external-priority patent/GB973787A/en
Application filed by International Standard Electric Corp filed Critical International Standard Electric Corp
Priority to FR975299A priority Critical patent/FR1394671A/fr
Application granted granted Critical
Publication of FR1394671A publication Critical patent/FR1394671A/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
    • 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
    • H04L25/4906—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 binary codes
    • 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
    • H04L25/4906—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 binary codes
    • H04L25/4915—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 binary codes using pattern inversion or substitution

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
FR975299A 1963-05-24 1964-05-21 Système de modulation par impulsions codées Expired FR1394671A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR975299A FR1394671A (fr) 1963-05-24 1964-05-21 Système de modulation par impulsions codées

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB20847/63A GB973787A (en) 1963-05-24 1963-05-24 Pulse code modulation system
FR975299A FR1394671A (fr) 1963-05-24 1964-05-21 Système de modulation par impulsions codées

Publications (1)

Publication Number Publication Date
FR1394671A true FR1394671A (fr) 1965-04-02

Family

ID=26207782

Family Applications (1)

Application Number Title Priority Date Filing Date
FR975299A Expired FR1394671A (fr) 1963-05-24 1964-05-21 Système de modulation par impulsions codées

Country Status (1)

Country Link
FR (1) FR1394671A (fr)

Similar Documents

Publication Publication Date Title
FR1444982A (fr) Système de propulsion
FR1340419A (fr) Système de codage pour signaux modulés par impulsions codées
FR1454574A (fr) Modulateur par impulsions codées
FR1469070A (fr) Système de reconnaissance de caractères
FR1407825A (fr) Système de communication radiotéléphonique par impulsions
FR1439392A (fr) Polymères réticulables par la lumière
FR1453673A (fr) Système de mémoire-fichier
BE603985A (fr) Système de communication par impulsions
FR1396179A (fr) Système de combustion
FR1498160A (fr) Système de télécommunications à modulation par impulsions codées
FR1443424A (fr) Système de télécommunication
FR1282014A (fr) Système de transmission par impulsions codées
CH418414A (fr) Système radar
FR1333092A (fr) Système multiplex à division des signaux dans le temps et à modulation par impulsions codées
FR1405181A (fr) émetteur à magnétron modulé par impulsions
FR1394671A (fr) Système de modulation par impulsions codées
FR1429996A (fr) Système de limitation de surintensités
FR1440835A (fr) Système de modulation par impulsions codées asynchrone
FR1389207A (fr) Dispositif de modulation par codes
FR1280140A (fr) Système de communication à modulation par impulsions codées
FR1382818A (fr) Système de transmission par impulsions
FR1354836A (fr) Décodeur extenseur pour système de transmission par impulsions codées
CH439391A (de) Impulskodeempfänger
FR1442643A (fr) Système de radioguidage
FR1401276A (fr) Système de modulation de lumière