JPS55145461A - Digital signal/noise ratio monitoring device - Google Patents

Digital signal/noise ratio monitoring device

Info

Publication number
JPS55145461A
JPS55145461A JP5269279A JP5269279A JPS55145461A JP S55145461 A JPS55145461 A JP S55145461A JP 5269279 A JP5269279 A JP 5269279A JP 5269279 A JP5269279 A JP 5269279A JP S55145461 A JPS55145461 A JP S55145461A
Authority
JP
Japan
Prior art keywords
circuit
output
pulse
branch
held
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
JP5269279A
Other languages
English (en)
Japanese (ja)
Other versions
JPS642259B2 (enrdf_load_stackoverflow
Inventor
Yoshihiko Akaiwa
Ichiro Takase
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 JP5269279A priority Critical patent/JPS55145461A/ja
Publication of JPS55145461A publication Critical patent/JPS55145461A/ja
Publication of JPS642259B2 publication Critical patent/JPS642259B2/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
    • H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector

Landscapes

  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Dc Digital Transmission (AREA)
JP5269279A 1979-04-27 1979-04-27 Digital signal/noise ratio monitoring device Granted JPS55145461A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5269279A JPS55145461A (en) 1979-04-27 1979-04-27 Digital signal/noise ratio monitoring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5269279A JPS55145461A (en) 1979-04-27 1979-04-27 Digital signal/noise ratio monitoring device

Publications (2)

Publication Number Publication Date
JPS55145461A true JPS55145461A (en) 1980-11-13
JPS642259B2 JPS642259B2 (enrdf_load_stackoverflow) 1989-01-17

Family

ID=12921934

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5269279A Granted JPS55145461A (en) 1979-04-27 1979-04-27 Digital signal/noise ratio monitoring device

Country Status (1)

Country Link
JP (1) JPS55145461A (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5810946A (ja) * 1981-07-14 1983-01-21 Fujitsu Ltd 信号断検出方式
JPS5974756A (ja) * 1982-10-21 1984-04-27 Kokusai Denshin Denwa Co Ltd <Kdd> 信号品質監視装置
JPS59161136A (ja) * 1983-03-04 1984-09-11 Nippon Telegr & Teleph Corp <Ntt> ジツタ検出形回線監視方法
JPS6046155A (ja) * 1983-08-23 1985-03-12 Nec Corp スケルチ信号発生回路
US5840022A (en) * 1993-03-22 1998-11-24 Siemens Aktiengesellschaft Method for imaging display of a part of the human body

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51140503A (en) * 1975-05-30 1976-12-03 Nippon Telegr & Teleph Corp <Ntt> S/n discriminating circuit
JPS52126737U (enrdf_load_stackoverflow) * 1976-03-24 1977-09-27
JPS5315175A (en) * 1976-07-27 1978-02-10 Nippon Telegr & Teleph Corp <Ntt> Jitter measuring instrument

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51140503A (en) * 1975-05-30 1976-12-03 Nippon Telegr & Teleph Corp <Ntt> S/n discriminating circuit
JPS52126737U (enrdf_load_stackoverflow) * 1976-03-24 1977-09-27
JPS5315175A (en) * 1976-07-27 1978-02-10 Nippon Telegr & Teleph Corp <Ntt> Jitter measuring instrument

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5810946A (ja) * 1981-07-14 1983-01-21 Fujitsu Ltd 信号断検出方式
JPS5974756A (ja) * 1982-10-21 1984-04-27 Kokusai Denshin Denwa Co Ltd <Kdd> 信号品質監視装置
JPS59161136A (ja) * 1983-03-04 1984-09-11 Nippon Telegr & Teleph Corp <Ntt> ジツタ検出形回線監視方法
JPS6046155A (ja) * 1983-08-23 1985-03-12 Nec Corp スケルチ信号発生回路
US5840022A (en) * 1993-03-22 1998-11-24 Siemens Aktiengesellschaft Method for imaging display of a part of the human body

Also Published As

Publication number Publication date
JPS642259B2 (enrdf_load_stackoverflow) 1989-01-17

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