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
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
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
- Communication Control (AREA)
- Small-Scale Networks (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Monitoring And Testing Of Exchanges (AREA)
- Dc Digital Transmission (AREA)
- Maintenance And Management Of Digital Transmission (AREA)
- Circuits Of Receivers In General (AREA)
- Mobile Radio Communication Systems (AREA)
- Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (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.
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)
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 |
FR2674082B1 (en) * | 1991-03-14 | 1994-11-25 | Bull Sa | TEST METHODS FOR BIDIRECTIONAL SERIES TRANSMISSIONS AND CIRCUITS FOR THEIR IMPLEMENTATION. |
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. |
DE4423333C1 (en) * | 1994-06-21 | 1995-08-31 | Siemens Ag | Measuring device for integrated services digital transmission network transmission path interface |
-
1978
- 1978-09-13 DE DE2839875A patent/DE2839875C2/en not_active Expired
-
1979
- 1979-08-20 EP EP79103055A patent/EP0009592B1/en not_active Expired
- 1979-08-20 AT AT79103055T patent/ATE119T1/en not_active IP Right Cessation
- 1979-09-07 NO NO792909A patent/NO148014C/en unknown
- 1979-09-12 BR BR7905845A patent/BR7905845A/en unknown
- 1979-09-12 DK DK380979A patent/DK151998C/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DK151998B (en) | 1988-01-18 |
BR7905845A (en) | 1980-05-27 |
DE2839875C2 (en) | 1984-03-29 |
DK380979A (en) | 1980-03-14 |
NO148014B (en) | 1983-04-11 |
NO792909L (en) | 1980-03-14 |
EP0009592A1 (en) | 1980-04-16 |
DK151998C (en) | 1988-06-20 |
EP0009592B1 (en) | 1981-07-22 |
NO148014C (en) | 1983-07-20 |
DE2839875A1 (en) | 1980-03-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR850000159A (en) | Data transmission system | |
ATE55666T1 (en) | TEST DEVICE FOR SIMULATION OF MULTIWAY INTERFERENCE. | |
NO950523D0 (en) | Method of Testing a Transmitter / Receiver Unit, as well as Base Station for a Time-Shared Radio Communication System | |
ATE119T1 (en) | METHOD AND CIRCUIT ARRANGEMENT FOR TESTING A NEWS STATION. | |
JPS55120244A (en) | Phase supervisory system | |
ATE2248T1 (en) | SIM RADIO NETWORK. | |
ATE171826T1 (en) | TRANSMITTER CIRCUIT FOR A DIGITAL RADIO TELEPHONE | |
JPS5742248A (en) | Switching device for communication system | |
JPS5726947A (en) | Remote test system for data communication line | |
ATE11473T1 (en) | METHOD FOR TRANSMISSION OF ANALOGUE INFORMATION VIA OPTICAL FIBERS AND EQUIPMENT FOR CARRYING OUT THE METHOD. | |
JPS5398710A (en) | Folded test control system for circuit | |
SE7509044L (en) | DATA COMMUNICATION SYSTEM | |
JPS57174943A (en) | Power line carrier device | |
NL7801649A (en) | Data transmission system with measured values modulating IR beam - has receiver with two sensitive elements to distinguish between information and interference signals | |
JPS6442930A (en) | Transmission power control system for satellite communication earth station | |
FR2357118A1 (en) | Bilateral digital radio communications system - has OR=gate which eliminates one of binary signals and accepts received binary signal | |
JPS5318308A (en) | Data transmission system | |
JPS55165059A (en) | Test system for communication control unit | |
JPS5697886A (en) | Loran a receiver | |
ATE34T1 (en) | ECHO BLOCK | |
JPS5465415A (en) | Time matching circuit | |
JPS5373001A (en) | Test system of mobile communication equipment | |
JPS53131707A (en) | Auotmatic telephone exchange system | |
JPS53105960A (en) | Automatic amplitude equalizer | |
JPS5625856A (en) | Signal folding control system in data transmission system |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
REN | Ceased due to non-payment of the annual fee |