JPS5647144A - Signal discriminator - Google Patents

Signal discriminator

Info

Publication number
JPS5647144A
JPS5647144A JP12357779A JP12357779A JPS5647144A JP S5647144 A JPS5647144 A JP S5647144A JP 12357779 A JP12357779 A JP 12357779A JP 12357779 A JP12357779 A JP 12357779A JP S5647144 A JPS5647144 A JP S5647144A
Authority
JP
Japan
Prior art keywords
error
circuit
signal
supplied
discrimination
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
JP12357779A
Other languages
Japanese (ja)
Other versions
JPS6334665B2 (en
Inventor
Fumio Akashi
Toru Koyama
Masaru Yamaguchi
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 JP12357779A priority Critical patent/JPS5647144A/en
Publication of JPS5647144A publication Critical patent/JPS5647144A/en
Publication of JPS6334665B2 publication Critical patent/JPS6334665B2/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
    • H04L1/24—Testing correct operation
    • H04L1/245—Testing correct operation by using the properties of transmission codes

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Dc Digital Transmission (AREA)

Abstract

PURPOSE:To make it possible to correct a discrimination error signal from a discriminating circuit that has neglected the bipolar rule, by specifying the error range by storing maximum error generation time. CONSTITUTION:A received signal from terminal 1 is supplied to threshold circuit 2, which discriminates among three levels ''1'', ''0'' and ''-1'' and sends its output to error correcting circuit 4 via delay circuit 3. On the other hand, the received signal supplied from terminal 1 and the discrimination output signal of threshold circuit 2 are supplied to maximum error generation time memory circuit 6, which finds an error signal at each time from two input signals and remembers its maximum value and maximum value generation time on the basis of an interval and polarity assigned by the discrimination signal. The discrimination signal outputted from threshold circuit 2 is supplied to error detecting circuit 7 as well to perform error detection using the bipolar rule. Output signals of memory circuit 6 and detecting circuit 7 are both inputted to error correcting circuit 4, which corrects the error.
JP12357779A 1979-09-26 1979-09-26 Signal discriminator Granted JPS5647144A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12357779A JPS5647144A (en) 1979-09-26 1979-09-26 Signal discriminator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12357779A JPS5647144A (en) 1979-09-26 1979-09-26 Signal discriminator

Publications (2)

Publication Number Publication Date
JPS5647144A true JPS5647144A (en) 1981-04-28
JPS6334665B2 JPS6334665B2 (en) 1988-07-12

Family

ID=14864021

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12357779A Granted JPS5647144A (en) 1979-09-26 1979-09-26 Signal discriminator

Country Status (1)

Country Link
JP (1) JPS5647144A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5687176A (en) * 1995-06-09 1997-11-11 Hubbell Incorporated Zero byte substitution method and apparatus for telecommunications equipment
JP2012178774A (en) * 2011-02-28 2012-09-13 Nec Engineering Ltd Bipolar/unipolar conversion circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5687176A (en) * 1995-06-09 1997-11-11 Hubbell Incorporated Zero byte substitution method and apparatus for telecommunications equipment
JP2012178774A (en) * 2011-02-28 2012-09-13 Nec Engineering Ltd Bipolar/unipolar conversion circuit

Also Published As

Publication number Publication date
JPS6334665B2 (en) 1988-07-12

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