JPS5337308A - Line monitor system - Google Patents

Line monitor system

Info

Publication number
JPS5337308A
JPS5337308A JP11213276A JP11213276A JPS5337308A JP S5337308 A JPS5337308 A JP S5337308A JP 11213276 A JP11213276 A JP 11213276A JP 11213276 A JP11213276 A JP 11213276A JP S5337308 A JPS5337308 A JP S5337308A
Authority
JP
Japan
Prior art keywords
parity
monitor system
line monitor
bit
thry
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
JP11213276A
Other languages
English (en)
Japanese (ja)
Other versions
JPS567336B2 (enrdf_load_stackoverflow
Inventor
Masatoshi Murakami
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP11213276A priority Critical patent/JPS5337308A/ja
Priority to DE2741823A priority patent/DE2741823C3/de
Priority to IT27656/77A priority patent/IT1143689B/it
Priority to CA286,884A priority patent/CA1106086A/en
Publication of JPS5337308A publication Critical patent/JPS5337308A/ja
Priority to US05/929,601 priority patent/US4182988A/en
Publication of JPS567336B2 publication Critical patent/JPS567336B2/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
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
JP11213276A 1976-09-17 1976-09-17 Line monitor system Granted JPS5337308A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP11213276A JPS5337308A (en) 1976-09-17 1976-09-17 Line monitor system
DE2741823A DE2741823C3 (de) 1976-09-17 1977-09-16 Kanalüberwachungssystem
IT27656/77A IT1143689B (it) 1976-09-17 1977-09-16 Dispositivo di controllo del canale
CA286,884A CA1106086A (en) 1976-09-17 1977-09-16 Channel monitoring system
US05/929,601 US4182988A (en) 1976-09-17 1978-07-31 PCM channel monitoring system for detecting errors using single parity bit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11213276A JPS5337308A (en) 1976-09-17 1976-09-17 Line monitor system

Publications (2)

Publication Number Publication Date
JPS5337308A true JPS5337308A (en) 1978-04-06
JPS567336B2 JPS567336B2 (enrdf_load_stackoverflow) 1981-02-17

Family

ID=14578993

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11213276A Granted JPS5337308A (en) 1976-09-17 1976-09-17 Line monitor system

Country Status (4)

Country Link
JP (1) JPS5337308A (enrdf_load_stackoverflow)
CA (1) CA1106086A (enrdf_load_stackoverflow)
DE (1) DE2741823C3 (enrdf_load_stackoverflow)
IT (1) IT1143689B (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5561158A (en) * 1978-10-31 1980-05-08 Thomson Csf Device for measuring quality of digital link
JPS5577260A (en) * 1978-12-05 1980-06-10 Fujitsu Ltd Error detection system of digital communication unit

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5325443B2 (enrdf_load_stackoverflow) * 1972-12-29 1978-07-27

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5561158A (en) * 1978-10-31 1980-05-08 Thomson Csf Device for measuring quality of digital link
JPS5577260A (en) * 1978-12-05 1980-06-10 Fujitsu Ltd Error detection system of digital communication unit

Also Published As

Publication number Publication date
JPS567336B2 (enrdf_load_stackoverflow) 1981-02-17
DE2741823C3 (de) 1981-06-04
IT1143689B (it) 1986-10-22
DE2741823B2 (de) 1980-07-10
CA1106086A (en) 1981-07-28
DE2741823A1 (de) 1978-03-30

Similar Documents

Publication Publication Date Title
JPS52117004A (en) Error control for loop transmission
JPS5386105A (en) Signal transmission system
JPS5337308A (en) Line monitor system
JPS5421146A (en) Failure detector
JPS536546A (en) Information transfer system
JPS52123145A (en) Time monitor system
JPS5372412A (en) Signal transmission system
JPS5434261A (en) Telemeter monitoring system
JPS534428A (en) Power supply interlock unit in data transmission system
JPS52154320A (en) Data transmission unit
JPS5424523A (en) Facsimile communication system
JPS52149042A (en) Power throw-in detection system for terminal
JPS5378140A (en) Diagnosis system for microprocessor
JPS51121295A (en) Emergency alarm system
JPS52152051A (en) Elevator signal transmitting device
JPS5335942A (en) Failure point dividing system
JPS5333343A (en) Input monitoring digital protective relay
JPS5338941A (en) Circuit control system
JPS52153301A (en) Moving radio link unit
JPS52154317A (en) Data transmission system
JPS5413202A (en) Check system for telephoe exchanging line
JPS5375707A (en) Fault detection system
JPS52154319A (en) Data transmission unit
JPS5432239A (en) Data transmission system
JPS5339030A (en) Information monitor system for information process unit