CH401144A - Device for the rapid transmission of electrical signals on a telecommunications channel - Google Patents

Device for the rapid transmission of electrical signals on a telecommunications channel

Info

Publication number
CH401144A
CH401144A CH6934759A CH6934759A CH401144A CH 401144 A CH401144 A CH 401144A CH 6934759 A CH6934759 A CH 6934759A CH 6934759 A CH6934759 A CH 6934759A CH 401144 A CH401144 A CH 401144A
Authority
CH
Switzerland
Prior art keywords
electrical signals
rapid transmission
telecommunications channel
telecommunications
channel
Prior art date
Application number
CH6934759A
Other languages
French (fr)
Inventor
Valensi Georges
Original Assignee
Valensi Georges
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 US715037A external-priority patent/US2947813A/en
Application filed by Valensi Georges filed Critical Valensi Georges
Publication of CH401144A publication Critical patent/CH401144A/en

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
    • H04L25/4902—Pulse width modulation; Pulse position modulation
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B26/00—Alarm systems in which substations are interrogated in succession by a central station
    • G08B26/008—Alarm systems in which substations are interrogated in succession by a central station central annunciator means of the sensed conditions, e.g. displaying or registering
    • 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
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • General Physics & Mathematics (AREA)
  • Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
CH6934759A 1957-06-27 1959-02-10 Device for the rapid transmission of electrical signals on a telecommunications channel CH401144A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR2947813X 1957-06-27
US715037A US2947813A (en) 1957-06-27 1958-02-13 Improvement in high speed telegraphic systems
FR783006 1958-12-31

Publications (1)

Publication Number Publication Date
CH401144A true CH401144A (en) 1965-10-31

Family

ID=32397594

Family Applications (1)

Application Number Title Priority Date Filing Date
CH6934759A CH401144A (en) 1957-06-27 1959-02-10 Device for the rapid transmission of electrical signals on a telecommunications channel

Country Status (3)

Country Link
CH (1) CH401144A (en)
GB (1) GB912883A (en)
NL (1) NL236083A (en)

Also Published As

Publication number Publication date
GB912883A (en) 1962-12-12
NL236083A (en)

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