FR1277853A - Data transmission system, in particular over telephone lines - Google Patents

Data transmission system, in particular over telephone lines

Info

Publication number
FR1277853A
FR1277853A FR850322A FR850322A FR1277853A FR 1277853 A FR1277853 A FR 1277853A FR 850322 A FR850322 A FR 850322A FR 850322 A FR850322 A FR 850322A FR 1277853 A FR1277853 A FR 1277853A
Authority
FR
France
Prior art keywords
data transmission
transmission system
telephone lines
particular over
over telephone
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
FR850322A
Other languages
French (fr)
Inventor
Esmond Philip Goodwin Wright
Victor John Terry
William Francis S Chittleburgh
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric 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 International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of FR1277853A publication Critical patent/FR1277853A/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
    • 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
    • H04L1/14—Arrangements for detecting or preventing errors in the information received by using return channel in which the signals are sent back to the transmitter to be checked ; echo systems
    • 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
    • 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
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
    • H04L5/143—Two-way operation using the same type of signal, i.e. duplex for modulated signals
    • 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)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Mobile Radio Communication Systems (AREA)
FR850322A 1960-06-24 1961-01-20 Data transmission system, in particular over telephone lines Expired FR1277853A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2222160A GB910453A (en) 1960-06-24 1960-06-24 Improvements in or relating to data transmission systems

Publications (1)

Publication Number Publication Date
FR1277853A true FR1277853A (en) 1961-12-01

Family

ID=10175885

Family Applications (4)

Application Number Title Priority Date Filing Date
FR850322A Expired FR1277853A (en) 1960-06-24 1961-01-20 Data transmission system, in particular over telephone lines
FR863644A Expired FR79897E (en) 1960-06-24 1961-06-01 Data transmission system, in particular over telephone lines
FR865900A Expired FR80017E (en) 1960-06-24 1961-06-23 Data transmission system, in particular over telephone lines
FR865901A Expired FR80018E (en) 1960-06-24 1961-06-23 Data transmission system, in particular over telephone lines

Family Applications After (3)

Application Number Title Priority Date Filing Date
FR863644A Expired FR79897E (en) 1960-06-24 1961-06-01 Data transmission system, in particular over telephone lines
FR865900A Expired FR80017E (en) 1960-06-24 1961-06-23 Data transmission system, in particular over telephone lines
FR865901A Expired FR80018E (en) 1960-06-24 1961-06-23 Data transmission system, in particular over telephone lines

Country Status (6)

Country Link
BE (1) BE605312R (en)
CH (1) CH389287A (en)
DE (1) DE1154657B (en)
FR (4) FR1277853A (en)
GB (3) GB959555A (en)
NL (2) NL260263A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2195128A1 (en) * 1972-07-31 1974-03-01 Westinghouse Electric Corp

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL270251A (en) * 1960-10-14
US3311879A (en) * 1963-04-18 1967-03-28 Ibm Error checking system for variable length data
DE1230847B (en) * 1963-05-30 1966-12-22 Einer Victor Lous Procedure and arrangement for forwarding corrected information
US4121052A (en) * 1976-01-26 1978-10-17 Richard Herbert L Telephone data recording system
GB2313747A (en) * 1996-05-30 1997-12-03 Motorola Ltd Data transmission verification
DE19701725C1 (en) * 1997-01-20 1998-06-18 Bosch Gmbh Robert Frequency diplexer
DE102005034506B4 (en) * 2005-07-20 2007-11-22 Infineon Technologies Ag Method and system for troubleshooting

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2195128A1 (en) * 1972-07-31 1974-03-01 Westinghouse Electric Corp

Also Published As

Publication number Publication date
GB910453A (en) 1962-11-14
FR80017E (en) 1963-03-01
FR79897E (en) 1963-02-08
CH389287A (en) 1965-03-15
NL265526A (en)
BE605312R (en) 1961-12-27
GB959555A (en) 1964-06-03
NL260263A (en)
DE1154657B (en) 1963-09-19
GB950739A (en) 1964-02-26
FR80018E (en) 1963-03-01

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