GB912883A - Improvements in high speed telegraphic or telemetering systems - Google Patents

Improvements in high speed telegraphic or telemetering systems

Info

Publication number
GB912883A
GB912883A GB4947/59A GB494759A GB912883A GB 912883 A GB912883 A GB 912883A GB 4947/59 A GB4947/59 A GB 4947/59A GB 494759 A GB494759 A GB 494759A GB 912883 A GB912883 A GB 912883A
Authority
GB
United Kingdom
Prior art keywords
character
pulses
circuit
amplitude
fed
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
GB4947/59A
Other languages
English (en)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB912883A publication Critical patent/GB912883A/en
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
    • H04L25/4902—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)
GB4947/59A 1957-06-27 1959-02-12 Improvements in high speed telegraphic or telemetering systems Expired GB912883A (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
GB912883A true GB912883A (en) 1962-12-12

Family

ID=32397594

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4947/59A Expired GB912883A (en) 1957-06-27 1959-02-12 Improvements in high speed telegraphic or telemetering systems

Country Status (3)

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

Also Published As

Publication number Publication date
NL236083A (cs)
CH401144A (fr) 1965-10-31

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