JPS56112149A - Condensing method for transmission circuit trace information - Google Patents

Condensing method for transmission circuit trace information

Info

Publication number
JPS56112149A
JPS56112149A JP1532380A JP1532380A JPS56112149A JP S56112149 A JPS56112149 A JP S56112149A JP 1532380 A JP1532380 A JP 1532380A JP 1532380 A JP1532380 A JP 1532380A JP S56112149 A JPS56112149 A JP S56112149A
Authority
JP
Japan
Prior art keywords
circuit
signal
tracing
resets
time measurement
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.)
Granted
Application number
JP1532380A
Other languages
Japanese (ja)
Other versions
JPS631786B2 (en
Inventor
Takushi Hamada
Masahiro Takahashi
Seiichi Yasumoto
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP1532380A priority Critical patent/JPS56112149A/en
Publication of JPS56112149A publication Critical patent/JPS56112149A/en
Publication of JPS631786B2 publication Critical patent/JPS631786B2/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Small-Scale Networks (AREA)
  • Maintenance And Management Of Digital Transmission (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)

Abstract

PURPOSE:To enable sharp reduction of memory capacity for tracing by resetting FF with a signal from an event occurrence information line or continueing a signal outputted when a timing circuit completes prescribed time measurement until FF resets. CONSTITUTION:The frame in receiving signal from a transmission control circuit 6 supplied through a frame in receiving information line 62 resets a timing circuit 201 through an OR gate 202. The circuit error information take-in completion signal from a tracing control circuit 12 sets FF203, and at the same time, actuates a timing circuit 205 and starts prescribed time measurement. The output of this FF203 resets the circuit 201 through a gate 202. This state is continued until either FF203 is reset by a signal from an event occurrence information line 61, or FF203 is reset by a signal outputted when the circuit 205 completes prescribed time measurement. Thus, tracing of information unrelated to transmision control is condensed largely, and the memory capacity for tracing can be reduced sharply.
JP1532380A 1980-02-08 1980-02-08 Condensing method for transmission circuit trace information Granted JPS56112149A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1532380A JPS56112149A (en) 1980-02-08 1980-02-08 Condensing method for transmission circuit trace information

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1532380A JPS56112149A (en) 1980-02-08 1980-02-08 Condensing method for transmission circuit trace information

Publications (2)

Publication Number Publication Date
JPS56112149A true JPS56112149A (en) 1981-09-04
JPS631786B2 JPS631786B2 (en) 1988-01-14

Family

ID=11885558

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1532380A Granted JPS56112149A (en) 1980-02-08 1980-02-08 Condensing method for transmission circuit trace information

Country Status (1)

Country Link
JP (1) JPS56112149A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63128840A (en) * 1986-11-19 1988-06-01 Fujitsu Ltd Acquisition system of line trace

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5452905A (en) * 1977-10-05 1979-04-25 Mitsubishi Electric Corp Data communication monitor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5452905A (en) * 1977-10-05 1979-04-25 Mitsubishi Electric Corp Data communication monitor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63128840A (en) * 1986-11-19 1988-06-01 Fujitsu Ltd Acquisition system of line trace

Also Published As

Publication number Publication date
JPS631786B2 (en) 1988-01-14

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