DE3888646D1 - Schaltung zur Überwachung eines Ersatzkanals. - Google Patents

Schaltung zur Überwachung eines Ersatzkanals.

Info

Publication number
DE3888646D1
DE3888646D1 DE88121109T DE3888646T DE3888646D1 DE 3888646 D1 DE3888646 D1 DE 3888646D1 DE 88121109 T DE88121109 T DE 88121109T DE 3888646 T DE3888646 T DE 3888646T DE 3888646 D1 DE3888646 D1 DE 3888646D1
Authority
DE
Germany
Prior art keywords
monitoring
circuit
replacement channel
replacement
channel
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 - Lifetime
Application number
DE88121109T
Other languages
English (en)
Inventor
Masahiro Nakajima
Satoshi C O Nec Engi Kashiwaba
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
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 filed Critical NEC Corp
Application granted granted Critical
Publication of DE3888646D1 publication Critical patent/DE3888646D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H04L1/22—Arrangements for detecting or preventing errors in the information received using redundant apparatus to increase reliability

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Dc Digital Transmission (AREA)
DE88121109T 1987-12-17 1988-12-16 Schaltung zur Überwachung eines Ersatzkanals. Expired - Lifetime DE3888646D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62317509A JP2524371B2 (ja) 1987-12-17 1987-12-17 予備回線監視回路

Publications (1)

Publication Number Publication Date
DE3888646D1 true DE3888646D1 (de) 1994-04-28

Family

ID=18089030

Family Applications (1)

Application Number Title Priority Date Filing Date
DE88121109T Expired - Lifetime DE3888646D1 (de) 1987-12-17 1988-12-16 Schaltung zur Überwachung eines Ersatzkanals.

Country Status (5)

Country Link
US (1) US4947394A (de)
EP (1) EP0320968B1 (de)
JP (1) JP2524371B2 (de)
AU (1) AU608724B2 (de)
DE (1) DE3888646D1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3826774A1 (de) * 1988-08-06 1990-02-08 Bosch Gmbh Robert Netzwerkschnittstelle
US5392291A (en) * 1991-05-20 1995-02-21 Alliedsignal Inc. Fault-tolerant CITO communication system
US5424881A (en) 1993-02-01 1995-06-13 Cirrus Logic, Inc. Synchronous read channel
US5355261A (en) * 1993-12-20 1994-10-11 Guzik Technical Enterprises, Inc. Method and apparatus for measuring error rate of magnetic recording devices having a partial response maximum likelihood data detection channel
US5490091A (en) * 1994-03-01 1996-02-06 Guzik Technical Enterprises, Inc. Histograms of processed noise samples for measuring error rate of a PRML data detection channel
US5689530A (en) * 1994-06-22 1997-11-18 Alcatel Network Systems, Inc. Data recovery circuit with large retime margin
US7746797B2 (en) * 2002-10-09 2010-06-29 Nortel Networks Limited Non-intrusive monitoring of quality levels for voice communications over a packet-based network
WO2011149066A1 (ja) * 2010-05-28 2011-12-01 国立大学法人東北大学 非同期プロトコル変換装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5585159A (en) * 1978-12-22 1980-06-26 Nec Corp Monitor circuit for spare line
US4363123A (en) * 1980-12-01 1982-12-07 Northern Telecom Limited Method of and apparatus for monitoring digital transmission systems in which line transmission errors are detected
IT8324267A0 (it) * 1983-12-20 1983-12-20 Italtel Spa Disposizione circuitale atta a rilevare il tasso di errore in sistemi di trasmissione di tipo numerico.
JPS60167547A (ja) * 1984-02-10 1985-08-30 Hitachi Ltd 信号伝送装置
JPS60214135A (ja) * 1984-04-09 1985-10-26 Nec Corp 予備回線監視回路
JPS62171342A (ja) * 1986-01-24 1987-07-28 Nec Corp デ−タ通信方式
EP0240833B1 (de) * 1986-04-11 1991-09-11 Siemens Aktiengesellschaft Überwachungsvorrichtung zur Überwachung des Betriebzustandes von Übertragungseinrichtungen der Nachrichtenübertragungstechnik
JPH0624345B2 (ja) * 1986-04-28 1994-03-30 日本電気株式会社 予備回線監視回路

Also Published As

Publication number Publication date
EP0320968B1 (de) 1994-03-23
JP2524371B2 (ja) 1996-08-14
EP0320968A2 (de) 1989-06-21
AU608724B2 (en) 1991-04-11
AU2704588A (en) 1989-06-22
JPH01160229A (ja) 1989-06-23
EP0320968A3 (en) 1990-01-31
US4947394A (en) 1990-08-07

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Legal Events

Date Code Title Description
8332 No legal effect for de