GB1180078A - Improvements in or relating to Circuit Arrangements for the Transmission of Coded Information Signals. - Google Patents

Improvements in or relating to Circuit Arrangements for the Transmission of Coded Information Signals.

Info

Publication number
GB1180078A
GB1180078A GB44344/67A GB4434467A GB1180078A GB 1180078 A GB1180078 A GB 1180078A GB 44344/67 A GB44344/67 A GB 44344/67A GB 4434467 A GB4434467 A GB 4434467A GB 1180078 A GB1180078 A GB 1180078A
Authority
GB
United Kingdom
Prior art keywords
frequencies
digit
transmitter
fault
sent
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
GB44344/67A
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of GB1180078A publication Critical patent/GB1180078A/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
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/30—Systems using multi-frequency codes wherein each code element is represented by a combination of frequencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Communication Control (AREA)
  • Selective Calling Equipment (AREA)
GB44344/67A 1966-09-30 1967-09-29 Improvements in or relating to Circuit Arrangements for the Transmission of Coded Information Signals. Expired GB1180078A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES106281A DE1288628B (de) 1966-09-30 1966-09-30 Verfahren und Schaltungsanordnung zur gesicherten UEbertragung von kodierten Nachrichtenzeichen, wobei jedes Nachrichtenzeichen durch zwei oder mehr Modulationsmerkmale uebertragen wird

Publications (1)

Publication Number Publication Date
GB1180078A true GB1180078A (en) 1970-02-04

Family

ID=7527287

Family Applications (1)

Application Number Title Priority Date Filing Date
GB44344/67A Expired GB1180078A (en) 1966-09-30 1967-09-29 Improvements in or relating to Circuit Arrangements for the Transmission of Coded Information Signals.

Country Status (8)

Country Link
US (1) US3593279A (https=)
AT (1) AT278159B (https=)
BE (1) BE704494A (https=)
CH (1) CH468754A (https=)
DE (1) DE1288628B (https=)
GB (1) GB1180078A (https=)
NL (1) NL6713293A (https=)
SE (1) SE319531B (https=)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3713095A (en) * 1971-03-16 1973-01-23 Bell Telephone Labor Inc Data processor sequence checking circuitry
US3962646A (en) * 1972-09-07 1976-06-08 Motorola, Inc. Squelch circuit for a digital system
DE3773177D1 (de) * 1987-02-05 1991-10-24 Alcatel Bell Sdt Sa Verfahren zur uebertragungsfehler-erkennung und -korrektur.
US6023779A (en) * 1996-01-18 2000-02-08 Pocketscience, Inc. Electronic, acoustical tone generating communications system and method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR960755A (https=) * 1943-12-18 1950-04-25
US3260994A (en) * 1962-12-28 1966-07-12 Bell Telephone Labor Inc Multifrequency pulse transmission system
US3459927A (en) * 1965-10-18 1969-08-05 Ibm Apparatus for checking logical connective circuits

Also Published As

Publication number Publication date
AT278159B (de) 1970-01-26
NL6713293A (https=) 1968-04-01
SE319531B (https=) 1970-01-19
US3593279A (en) 1971-07-13
BE704494A (https=) 1968-03-29
DE1288628B (de) 1969-02-06
CH468754A (de) 1969-02-15

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