GB693211A - Improvements in or relating to two-way type-printing telegraph systems - Google Patents

Improvements in or relating to two-way type-printing telegraph systems

Info

Publication number
GB693211A
GB693211A GB15487/48A GB1548748A GB693211A GB 693211 A GB693211 A GB 693211A GB 15487/48 A GB15487/48 A GB 15487/48A GB 1548748 A GB1548748 A GB 1548748A GB 693211 A GB693211 A GB 693211A
Authority
GB
United Kingdom
Prior art keywords
signal
station
mutilated
control
printing telegraph
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
GB15487/48A
Inventor
Hendrik Cornelis Anthon Duuren
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.)
HET STAATSBEDRIJF DER POSTERIJ
Original Assignee
HET STAATSBEDRIJF DER POSTERIJ
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
Application filed by HET STAATSBEDRIJF DER POSTERIJ filed Critical HET STAATSBEDRIJF DER POSTERIJ
Publication of GB693211A publication Critical patent/GB693211A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Communication Control (AREA)

Abstract

693,211. Type-printing telegraph systems. HET STAATSBEDRIJF DER POSTERIJEN TELEGRAFIE EN TELEFONIE. June 8, 1948 [June 8, 1948], No. 1547/48. Drawings to Specification. Class 40 (iii). Class 40 (iii). The system is generally similar to that described in Specification 632,774 in which the operation of the printer at a receiving station is suspended when a mutilated signal is received and the transmitter at that station is operated to send two distinctive control signals, one of which is repeated a number of times, to the station which transmitted the mutilated signal in order to control the transmitter at the latter station to retransmit the signal which had been mutilated in transmission. The present Specification describes the modification and adaptation of that system to carry out the similar operations with the employment of a single control or repeat signal. The character signals and the control signal are of the type in which the ratio of marks to spaces is constant, and the description of the present system relates to the employment of a 8-unit code having four marks and four spaces formed from the basic 5-unit code as described in Specification 632,774. Specifications 419,526, 519,633 and 632,795 also are referred to.
GB15487/48A 1948-06-08 1948-06-08 Improvements in or relating to two-way type-printing telegraph systems Expired GB693211A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB298341X 1948-06-08

Publications (1)

Publication Number Publication Date
GB693211A true GB693211A (en) 1953-06-24

Family

ID=10297944

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15487/48A Expired GB693211A (en) 1948-06-08 1948-06-08 Improvements in or relating to two-way type-printing telegraph systems

Country Status (4)

Country Link
US (1) US2703361A (en)
CH (1) CH298341A (en)
GB (1) GB693211A (en)
NL (1) NL71599C (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2850718A (en) * 1954-02-04 1958-09-02 Automatic Telephone & Elect Counting circuits
US2828362A (en) * 1956-01-24 1958-03-25 Bell Telephone Labor Inc Digit data transmission system
GB828540A (en) * 1956-08-28 1960-02-17 Standard Telephones Cables Ltd Improvements in or relating to data processing equipment
US3256514A (en) * 1962-09-13 1966-06-14 Digitronics Corp Information transfer system
US3328758A (en) * 1962-12-03 1967-06-27 Sangamo Electric Co Data receiver
NL130511C (en) * 1963-10-15
US3460090A (en) * 1964-11-06 1969-08-05 Ericsson Telefon Ab L M Apparatus for error correction in a data transmission system
NL135897C (en) * 1965-12-03
US5067114A (en) * 1983-03-21 1991-11-19 Develco, Inc. Correlation for combinational coded telemetry

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR595335A (en) * 1924-06-04 1925-09-30 Process for eliminating natural or artificial parasites, allowing the use, in t. s. f., fast telegraph devices called
US1875027A (en) * 1928-02-25 1932-08-30 Siemens Ag Atmospheric disturbance elimination
US2050265A (en) * 1933-07-14 1936-08-11 American Telephone & Telegraph Iterative telegraph system
FR851674A (en) * 1937-09-25 1940-01-12
DE880314C (en) * 1939-05-04 1953-05-07 Staatsbedrijf Der Posterijen Pressure telegraph system with two-way traffic, especially for wireless transmission

Also Published As

Publication number Publication date
CH298341A (en) 1954-04-30
US2703361A (en) 1955-03-01
NL71599C (en)

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