CA964593A - Method and apparatus for testing teletypewriter terminals - Google Patents

Method and apparatus for testing teletypewriter terminals

Info

Publication number
CA964593A
CA964593A CA145,291A CA145291A CA964593A CA 964593 A CA964593 A CA 964593A CA 145291 A CA145291 A CA 145291A CA 964593 A CA964593 A CA 964593A
Authority
CA
Canada
Prior art keywords
testing
teletypewriter
terminals
teletypewriter terminals
testing teletypewriter
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
CA145,291A
Other languages
English (en)
Other versions
CA145291S (en
Inventor
Richard A. Liberman
William C. Bond
Edwin J. Soltysiak
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.)
General Datacomm Inc
Original Assignee
General Datacomm Inc
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 General Datacomm Inc filed Critical General Datacomm Inc
Application granted granted Critical
Publication of CA964593A publication Critical patent/CA964593A/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
    • H04L1/24—Testing correct operation
    • H04L1/242—Testing correct operation by comparing a transmitted test signal with a locally generated replica
    • H04L1/243—Testing correct operation by comparing a transmitted test signal with a locally generated replica at the transmitter, using a loop-back
    • 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
    • H04L1/24—Testing correct operation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Maintenance And Management Of Digital Transmission (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Bidirectional Digital Transmission (AREA)
  • Mechanical Operated Clutches (AREA)
  • Telephonic Communication Services (AREA)
  • Communication Control (AREA)
CA145,291A 1971-11-01 1972-06-21 Method and apparatus for testing teletypewriter terminals Expired CA964593A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US19427071A 1971-11-01 1971-11-01

Publications (1)

Publication Number Publication Date
CA964593A true CA964593A (en) 1975-03-18

Family

ID=22716941

Family Applications (1)

Application Number Title Priority Date Filing Date
CA145,291A Expired CA964593A (en) 1971-11-01 1972-06-21 Method and apparatus for testing teletypewriter terminals

Country Status (8)

Country Link
US (1) US3769454A (ja)
JP (1) JPS5644621B2 (ja)
BE (1) BE788949A (ja)
CA (1) CA964593A (ja)
DE (1) DE2248234C2 (ja)
FR (1) FR2159877A1 (ja)
GB (2) GB1401669A (ja)
IT (1) IT975316B (ja)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3952163A (en) * 1972-04-24 1976-04-20 General Datacomm Industries, Inc. Method and apparatus for testing in FDM system
US4039751A (en) * 1972-04-24 1977-08-02 General Datacomm Industries, Inc. Method and apparatus for closed loop testing of first and second modulators and demodulators
US3937882A (en) * 1974-04-11 1976-02-10 Vadic Corporation Full-duplex communication system on a two wire line
US3908086A (en) * 1974-06-03 1975-09-23 Redactron Corp Method for establishing a data communication connection between two full duplex modems
DE2522725C3 (de) * 1975-05-22 1979-02-22 Siemens Ag, 1000 Berlin Und 8000 Muenchen Verfahren zur Fehlererkennung in einem Fahrzeugortungssystem
GB1540900A (en) * 1975-06-30 1979-02-21 Ericsson L M Pty Ltd Digital testing and power control in a digital communication system
US4095045A (en) * 1977-01-19 1978-06-13 General Datacomm Industries, Inc. Method and apparatus for signaling in a communication system
US4383312A (en) * 1980-11-28 1983-05-10 The United States Of America As Represented By The Secretary Of The Navy Multiplex system tester
US4471489A (en) * 1981-03-19 1984-09-11 General Datacomm Industries, Inc. Automatic answer/originate mode selection in modem
KR100467587B1 (ko) * 2002-06-07 2005-01-24 삼성전자주식회사 팩시 밀리의 자기 진단 방법 및 이 방법을 수행하는팩시밀리

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3571530A (en) * 1965-05-27 1971-03-16 Bell Telephone Labor Inc System for remote testing of telephone subscribers{3 {0 lines
US3622877A (en) * 1969-11-07 1971-11-23 Sanders Associates Inc Apparatus for testing modulator demodulator units for transmission errors and indicating the errors per power of 10
US3655915A (en) * 1970-05-07 1972-04-11 Gen Datacomm Ind Inc Closed loop test method and apparatus for duplex data transmission modem

Also Published As

Publication number Publication date
JPS4853613A (ja) 1973-07-27
IT975316B (it) 1974-07-20
GB1401670A (en) 1975-07-16
GB1401669A (en) 1975-07-16
DE2248234C2 (de) 1982-12-16
DE2248234A1 (de) 1973-05-10
FR2159877A1 (ja) 1973-06-22
JPS5644621B2 (ja) 1981-10-21
BE788949A (fr) 1973-03-19
US3769454A (en) 1973-10-30

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