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 SYSTEMS, e.g. PERSONAL 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)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (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 (cg-RX-API-DMAC7.html)
GB (1) GB912883A (cg-RX-API-DMAC7.html)
NL (1) NL236083A (cg-RX-API-DMAC7.html)

Also Published As

Publication number Publication date
CH401144A (fr) 1965-10-31
NL236083A (cg-RX-API-DMAC7.html)

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