CA2057447A1 - Method and circuit for testing transmission paths - Google Patents

Method and circuit for testing transmission paths

Info

Publication number
CA2057447A1
CA2057447A1 CA2057447A CA2057447A CA2057447A1 CA 2057447 A1 CA2057447 A1 CA 2057447A1 CA 2057447 A CA2057447 A CA 2057447A CA 2057447 A CA2057447 A CA 2057447A CA 2057447 A1 CA2057447 A1 CA 2057447A1
Authority
CA
Canada
Prior art keywords
lfsr
transmission paths
pseudo random
circuit
sequence
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
CA2057447A
Other languages
French (fr)
Other versions
CA2057447C (en
Inventor
John Albert Gauthier
John Kenneth Goatcher
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.)
Nortel Networks Ltd
Original Assignee
Northern Telecom 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 Northern Telecom Ltd filed Critical Northern Telecom Ltd
Priority to CA002057447A priority Critical patent/CA2057447C/en
Publication of CA2057447A1 publication Critical patent/CA2057447A1/en
Application granted granted Critical
Publication of CA2057447C publication Critical patent/CA2057447C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Tests Of Electronic Circuits (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)

Abstract

A circuit for testing the integrity of transmission paths includes a first linear feedback shift register (LFSR) adapted to generate a periodic sequence of pseudo random test data for transmission on the transmission paths. A second LFSR synchronizes to the transmitted test data after being provided with a seed value corresponding to a transmitted data word. After synchronization, the second LFSR is set to a free running mode and independently generates a pseudo random sequence of patterns corresponding to the sequence generated by the first LFSR. A comparator compares the pseudo random data generated by the second LFSR with the pseudo random data received from the transmission paths. If a mismatch occurs a signal indicating an error condition is asserted.
CA002057447A 1991-12-11 1991-12-11 Method and circuit for testing transmission paths Expired - Fee Related CA2057447C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002057447A CA2057447C (en) 1991-12-11 1991-12-11 Method and circuit for testing transmission paths

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA002057447A CA2057447C (en) 1991-12-11 1991-12-11 Method and circuit for testing transmission paths

Publications (2)

Publication Number Publication Date
CA2057447A1 true CA2057447A1 (en) 1993-06-12
CA2057447C CA2057447C (en) 1998-12-29

Family

ID=4148911

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002057447A Expired - Fee Related CA2057447C (en) 1991-12-11 1991-12-11 Method and circuit for testing transmission paths

Country Status (1)

Country Link
CA (1) CA2057447C (en)

Also Published As

Publication number Publication date
CA2057447C (en) 1998-12-29

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Legal Events

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EEER Examination request
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