JPS6360943B2 - - Google Patents

Info

Publication number
JPS6360943B2
JPS6360943B2 JP17752882A JP17752882A JPS6360943B2 JP S6360943 B2 JPS6360943 B2 JP S6360943B2 JP 17752882 A JP17752882 A JP 17752882A JP 17752882 A JP17752882 A JP 17752882A JP S6360943 B2 JPS6360943 B2 JP S6360943B2
Authority
JP
Japan
Prior art keywords
line
repeater
center
relay device
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
JP17752882A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5967755A (ja
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 filed Critical
Priority to JP57177528A priority Critical patent/JPS5967755A/ja
Publication of JPS5967755A publication Critical patent/JPS5967755A/ja
Publication of JPS6360943B2 publication Critical patent/JPS6360943B2/ja
Granted 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Dc Digital Transmission (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
JP57177528A 1982-10-12 1982-10-12 中継系の保守試験方式 Granted JPS5967755A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57177528A JPS5967755A (ja) 1982-10-12 1982-10-12 中継系の保守試験方式

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57177528A JPS5967755A (ja) 1982-10-12 1982-10-12 中継系の保守試験方式

Publications (2)

Publication Number Publication Date
JPS5967755A JPS5967755A (ja) 1984-04-17
JPS6360943B2 true JPS6360943B2 (enrdf_load_stackoverflow) 1988-11-25

Family

ID=16032496

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57177528A Granted JPS5967755A (ja) 1982-10-12 1982-10-12 中継系の保守試験方式

Country Status (1)

Country Link
JP (1) JPS5967755A (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7078015B2 (en) 1989-12-22 2006-07-18 Imarx Therapeutics, Inc. Ultrasound imaging and treatment
US7329402B2 (en) 1995-06-07 2008-02-12 Imarx Pharmaceutical Corp. Methods of imaging and treatment
US7344705B2 (en) 1991-04-05 2008-03-18 Bristol-Myers Squibb Medical Imaging, Inc. Composition comprising low density microspheres

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60180235A (ja) * 1984-02-27 1985-09-14 Nec Corp 中継伝送路監視方式
JPS60235545A (ja) * 1984-05-08 1985-11-22 Nec Corp Ｐｃｍ伝送システムにおける信号折返し方式

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7078015B2 (en) 1989-12-22 2006-07-18 Imarx Therapeutics, Inc. Ultrasound imaging and treatment
US7344705B2 (en) 1991-04-05 2008-03-18 Bristol-Myers Squibb Medical Imaging, Inc. Composition comprising low density microspheres
US7329402B2 (en) 1995-06-07 2008-02-12 Imarx Pharmaceutical Corp. Methods of imaging and treatment

Also Published As

Publication number Publication date
JPS5967755A (ja) 1984-04-17

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