FI831320A0 - KODREGELFELPROEVARE FOER DIGITALA SIGNALER I AMI-KOD - Google Patents

KODREGELFELPROEVARE FOER DIGITALA SIGNALER I AMI-KOD

Info

Publication number
FI831320A0
FI831320A0 FI831320A FI831320A FI831320A0 FI 831320 A0 FI831320 A0 FI 831320A0 FI 831320 A FI831320 A FI 831320A FI 831320 A FI831320 A FI 831320A FI 831320 A0 FI831320 A0 FI 831320A0
Authority
FI
Finland
Prior art keywords
input
error detector
code
ami
schmitt trigger
Prior art date
Application number
FI831320A
Other languages
Finnish (fi)
Other versions
FI831320L (en
Inventor
Fritz Meyer
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Publication of FI831320A0 publication Critical patent/FI831320A0/en
Publication of FI831320L publication Critical patent/FI831320L/en

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
    • H04L1/247—Testing correct operation by using the properties of transmission codes three-level transmission codes, e.g. ternary

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Dc Digital Transmission (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Communication Control (AREA)

Abstract

1. A code violation monitor for digital signals in the AMI-code, characterized in that an input (E) is provided for the digital signals, which is connected in series with a Schmitt trigger (ST), a delay element (VL) and a second input (E2) of an error detector (FD), that the error detector includes a changeover switch (T1, T2) which is controlled by a Schmitt trigger output signal which is delayed by one element period relative to the input signal, and further includes two threshold value comparators (T3, T4 ; T5, T6) which are activated by said changeover switch (T1, T2) and of which the first compares the input signal with the lower threshold voltage (UO) and the other compares the input signal with the upper threshold voltage (U1) of the Schmitt trigger (ST), that the input (E) of the code violation monitor is directely connected to a first input (E1) of the error detector (FD), and that in the event of code rule infringements an error pulse can be obtained from that output (A) of the error detector which corresponds to the output of the code violation monitor.
FI831320A 1982-04-20 1983-04-19 KODREGELFELPROEVARE FOER DIGITALA SIGNALER I AMI-KOD FI831320L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19823214622 DE3214622A1 (en) 1982-04-20 1982-04-20 CODE RULE INFRINGEMENT TEST FOR DIGITAL SIGNALS IN AMI CODE

Publications (2)

Publication Number Publication Date
FI831320A0 true FI831320A0 (en) 1983-04-19
FI831320L FI831320L (en) 1983-10-21

Family

ID=6161412

Family Applications (1)

Application Number Title Priority Date Filing Date
FI831320A FI831320L (en) 1982-04-20 1983-04-19 KODREGELFELPROEVARE FOER DIGITALA SIGNALER I AMI-KOD

Country Status (5)

Country Link
EP (1) EP0092216B1 (en)
AT (1) ATE17907T1 (en)
DE (2) DE3214622A1 (en)
FI (1) FI831320L (en)
NO (1) NO158398B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0636511B2 (en) * 1988-05-31 1994-05-11 日本電気株式会社 Code violation detection circuit
DE4041717A1 (en) * 1990-12-24 1992-06-25 Thomson Brandt Gmbh METHOD AND CIRCUIT FOR REGENERATING THE BINARY BIT CURRENT FROM A TERNAERAL SIGNAL

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3048819A (en) * 1960-12-05 1962-08-07 Bell Telephone Labor Inc Detection and measurement of errors in pulse code trains
GB1508915A (en) * 1975-07-28 1978-04-26 Standard Telephones Cables Ltd Error detection in digital transmission systems
JPS5315010A (en) * 1976-07-27 1978-02-10 Nec Corp Bipolar pulse polarity error detection circuit
DE2743721A1 (en) * 1977-09-29 1979-04-12 Licentia Gmbh Coding and decoding system detecting digital transmission errors - has at least two stages and uses same code for inner and outer coder or decoder
EP0044555B1 (en) * 1980-07-22 1984-05-09 Siemens Aktiengesellschaft Regenerator with tester for violation of the coding rule
EP0044554B1 (en) * 1980-07-22 1984-05-30 Siemens Aktiengesellschaft Supervisory arrangement for a pcm regenerator with tester for violation of the coding rule
FR2489060A1 (en) * 1980-08-21 1982-02-26 Telecommunications Sa DEVICE FOR DETECTING ERRORS OF A TERNA CODE SIGNAL

Also Published As

Publication number Publication date
EP0092216B1 (en) 1986-02-05
DE3214622A1 (en) 1983-10-20
NO158398B (en) 1988-05-24
EP0092216A3 (en) 1984-02-22
EP0092216A2 (en) 1983-10-26
ATE17907T1 (en) 1986-02-15
FI831320L (en) 1983-10-21
DE3362060D1 (en) 1986-03-20
NO831368L (en) 1983-10-21

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Legal Events

Date Code Title Description
FA Application withdrawn

Owner name: SIEMENS AKTIENGESELLSCHAFT