CA970888A - Apparatus for testing data modems which simultaneously transmit and receive frequency multiplexed signals - Google Patents

Apparatus for testing data modems which simultaneously transmit and receive frequency multiplexed signals

Info

Publication number
CA970888A
CA970888A CA156,295A CA156295A CA970888A CA 970888 A CA970888 A CA 970888A CA 156295 A CA156295 A CA 156295A CA 970888 A CA970888 A CA 970888A
Authority
CA
Canada
Prior art keywords
simultaneously transmit
testing data
receive frequency
multiplexed signals
frequency multiplexed
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
CA156,295A
Other languages
English (en)
Other versions
CA156295S (en
Inventor
Robert G. Ragsdale
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.)
Milgo Electronic Corp
Original Assignee
Milgo Electronic 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 Milgo Electronic Corp filed Critical Milgo Electronic Corp
Application granted granted Critical
Publication of CA970888A publication Critical patent/CA970888A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Bidirectional Digital Transmission (AREA)
CA156,295A 1971-11-15 1972-11-14 Apparatus for testing data modems which simultaneously transmit and receive frequency multiplexed signals Expired CA970888A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US19887671A 1971-11-15 1971-11-15

Publications (1)

Publication Number Publication Date
CA970888A true CA970888A (en) 1975-07-08

Family

ID=22735224

Family Applications (1)

Application Number Title Priority Date Filing Date
CA156,295A Expired CA970888A (en) 1971-11-15 1972-11-14 Apparatus for testing data modems which simultaneously transmit and receive frequency multiplexed signals

Country Status (7)

Country Link
JP (2) JPS4980913A (en])
CA (1) CA970888A (en])
CH (1) CH565487A5 (en])
DE (1) DE2255651A1 (en])
FR (1) FR2161606A5 (en])
GB (1) GB1372905A (en])
SE (1) SE383080B (en])

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2386202A1 (fr) * 1977-03-31 1978-10-27 Cit Alcatel Dispositif de test en local pour un equipement de transmission de donnees duplex
EP0014583A1 (en) * 1979-02-13 1980-08-20 Macwell Systems Limited Improvements in or relating to fault-finding apparatuses
JPH083074Y2 (ja) * 1989-06-15 1996-01-29 松下電工株式会社 テレビジョン受像機用リモートコントローラー

Also Published As

Publication number Publication date
FR2161606A5 (en]) 1973-07-06
CH565487A5 (en]) 1975-08-15
JPS56104260U (en]) 1981-08-14
SE383080B (sv) 1976-02-23
GB1372905A (en) 1974-11-06
DE2255651A1 (de) 1973-05-24
JPS4980913A (en]) 1974-08-05

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