GB1334900A - Information transmission systems - Google Patents

Information transmission systems

Info

Publication number
GB1334900A
GB1334900A GB5101371A GB5101371A GB1334900A GB 1334900 A GB1334900 A GB 1334900A GB 5101371 A GB5101371 A GB 5101371A GB 5101371 A GB5101371 A GB 5101371A GB 1334900 A GB1334900 A GB 1334900A
Authority
GB
United Kingdom
Prior art keywords
group
information transmission
state
transmission systems
transmitted
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
GB5101371A
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.)
Siemens AG
Original Assignee
Siemens AG
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 DE19702005836 external-priority patent/DE2005836C3/en
Priority claimed from DE19702059411 external-priority patent/DE2059411B2/en
Application filed by Siemens AG filed Critical Siemens AG
Publication of GB1334900A publication Critical patent/GB1334900A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/22—Arrangements affording multiple use of the transmission path using time-division multiplexing
    • H04L5/225—Arrangements affording multiple use of the transmission path using time-division multiplexing combined with the use of transition coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • 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
    • H04L25/493—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 by transition coding, i.e. the time-position or direction of a transition being encoded before transmission

Abstract

1334900 Multiplex pulse code signalling SIEMENS AG 3 Nov 1971 [2 Dec 1970] 51013/71 Addition to 1306626 Heading H4L The system disclosed in the parent Specification is modified to ensure adequate synchronization. In that system the prevailing polarity (0 or 1) of the modulation state of the input signal is transmitted between the pulse groups so that during these periods bit synchronization could be lost. In order to avoid this a particular combination of bits is assigned to each state. For example, the group 001 may be repetitively transmitted for one modulation state and group 110 for the other, providing sufficient polarity changes to ensure bit synchronization.
GB5101371A 1970-02-09 1971-11-03 Information transmission systems Expired GB1334900A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19702005836 DE2005836C3 (en) 1970-02-09 Method for transmitting a large number of binary messages over a transparent channel
DE19702059411 DE2059411B2 (en) 1970-12-02 1970-12-02 PROCEDURE FOR TRANSMITTING A VARIETY OF BINARY MESSAGES OVER A TRANSPARENT CHANNEL

Publications (1)

Publication Number Publication Date
GB1334900A true GB1334900A (en) 1973-10-24

Family

ID=25758623

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5101371A Expired GB1334900A (en) 1970-02-09 1971-11-03 Information transmission systems

Country Status (4)

Country Link
CH (1) CH526240A (en)
FR (1) FR2117242A6 (en)
GB (1) GB1334900A (en)
NL (1) NL7116524A (en)

Also Published As

Publication number Publication date
CH526240A (en) 1972-07-31
NL7116524A (en) 1972-06-06
FR2117242A6 (en) 1972-07-21

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee