ATE119T1 - METHOD AND CIRCUIT ARRANGEMENT FOR TESTING A NEWS STATION. - Google Patents

METHOD AND CIRCUIT ARRANGEMENT FOR TESTING A NEWS STATION.

Info

Publication number
ATE119T1
ATE119T1 AT79103055T AT79103055T ATE119T1 AT E119 T1 ATE119 T1 AT E119T1 AT 79103055 T AT79103055 T AT 79103055T AT 79103055 T AT79103055 T AT 79103055T AT E119 T1 ATE119 T1 AT E119T1
Authority
AT
Austria
Prior art keywords
signal
way
communication
item
station
Prior art date
Application number
AT79103055T
Other languages
German (de)
Inventor
Adolf Haass
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
Application granted granted Critical
Publication of ATE119T1 publication Critical patent/ATE119T1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
    • H04B3/23—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a replica of transmitted signal in the time domain, e.g. echo cancellers
    • 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

Landscapes

  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Engineering & Computer Science (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Communication Control (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Small-Scale Networks (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Dc Digital Transmission (AREA)
  • Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Circuits Of Receivers In General (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Maintenance And Management Of Digital Transmission (AREA)

Abstract

1. Method for testing a communications station which can be selectively set in a test state or in an operating state, in accordance with which, in the operating state (Fig. 1), an item of communication (n) is conducted in duplex operation via a two-wire line (L) to another communications station, whereupon a simulated signal (ns) is obtained and compared with the received signal (es) and in this way a comparison signal (vs) is obtained and conducted to the receiver (EM), and in accordance with which the comparison signal (vs) is compared with a constant reference signal (rf) and in this way a regulating signal (rs) is obtained with the aid of which the simulated signal (ns) is automatically adjusted in such a way that the transmitted item of communication (n) does not exert a disturbing influence in the receiver (EM) of the particular communications station (Fig. 1), characterized in that in the test state (Fig. 2) the simulated signal (ns) is compared with the item of communication (n) and with the aid of the regulating signal (rs) obtained in this way the simulated signal (ns) is automatically adjusted in such a way that the item of communication (n) emitted from the particular station is received by the receiver (EM) of the station.
AT79103055T 1978-09-13 1979-08-20 METHOD AND CIRCUIT ARRANGEMENT FOR TESTING A NEWS STATION. ATE119T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2839875A DE2839875C2 (en) 1978-09-13 1978-09-13 Method for testing a news station
EP79103055A EP0009592B1 (en) 1978-09-13 1979-08-20 Method and circuit for testing a communication station

Publications (1)

Publication Number Publication Date
ATE119T1 true ATE119T1 (en) 1981-08-15

Family

ID=6049363

Family Applications (1)

Application Number Title Priority Date Filing Date
AT79103055T ATE119T1 (en) 1978-09-13 1979-08-20 METHOD AND CIRCUIT ARRANGEMENT FOR TESTING A NEWS STATION.

Country Status (6)

Country Link
EP (1) EP0009592B1 (en)
AT (1) ATE119T1 (en)
BR (1) BR7905845A (en)
DE (1) DE2839875C2 (en)
DK (1) DK151998C (en)
NO (1) NO148014C (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4520476A (en) * 1982-12-13 1985-05-28 Rockwell International Corporation Apparatus for enabling the duplex operation of a transmitter and receiver
SE434789B (en) * 1982-12-21 1984-08-13 Ellemtel Utvecklings Ab METHOD OF DETECTING DANGEROUS LINE TENSIONS OVER A DOUBLE LINE
FR2674083B1 (en) * 1991-03-14 1994-01-07 Bull Sa BIDIRECTIONAL LINK TRANSCEIVER, INTEGRATED CIRCUIT INCORPORATING THE SAME, AND APPLICATION TO COMMUNICATION BETWEEN UNITS OF A COMPUTER SYSTEM.
FR2674082B1 (en) * 1991-03-14 1994-11-25 Bull Sa TEST METHODS FOR BIDIRECTIONAL SERIES TRANSMISSIONS AND CIRCUITS FOR THEIR IMPLEMENTATION.
DE4423333C1 (en) * 1994-06-21 1995-08-31 Siemens Ag Measuring device for integrated services digital transmission network transmission path interface

Also Published As

Publication number Publication date
NO148014B (en) 1983-04-11
DK151998B (en) 1988-01-18
DE2839875C2 (en) 1984-03-29
DK151998C (en) 1988-06-20
EP0009592A1 (en) 1980-04-16
DK380979A (en) 1980-03-14
BR7905845A (en) 1980-05-27
NO792909L (en) 1980-03-14
EP0009592B1 (en) 1981-07-22
DE2839875A1 (en) 1980-03-20
NO148014C (en) 1983-07-20

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Legal Events

Date Code Title Description
REN Ceased due to non-payment of the annual fee