AU459938B2 - Improvements in or relating to telegraphic keying circuits - Google Patents

Improvements in or relating to telegraphic keying circuits

Info

Publication number
AU459938B2
AU459938B2 AU44504/72A AU4450472A AU459938B2 AU 459938 B2 AU459938 B2 AU 459938B2 AU 44504/72 A AU44504/72 A AU 44504/72A AU 4450472 A AU4450472 A AU 4450472A AU 459938 B2 AU459938 B2 AU 459938B2
Authority
AU
Australia
Prior art keywords
relating
keying circuits
telegraphic keying
telegraphic
circuits
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.)
Expired
Application number
AU44504/72A
Other versions
AU4450472A (en
Inventor
Skobranek Norbert
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.)
Siemens AG
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 AU4450472A publication Critical patent/AU4450472A/en
Application granted granted Critical
Publication of AU459938B2 publication Critical patent/AU459938B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0264—Arrangements for coupling to transmission lines
    • H04L25/028—Arrangements specific to the transmitter end
    • H04L25/0282—Provision for current-mode coupling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/12—Compensating for variations in line impedance
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0264—Arrangements for coupling to transmission lines
    • H04L25/0272—Arrangements for coupling to multiple lines, e.g. for differential transmission

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Dc Digital Transmission (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
AU44504/72A 1971-08-02 1972-07-12 Improvements in or relating to telegraphic keying circuits Expired AU459938B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEDE821385 1971-08-02
DE2138576A DE2138576C3 (en) 1971-08-02 1971-08-02 Converter circuit for transmitting direct current telegraphic characters

Publications (2)

Publication Number Publication Date
AU4450472A AU4450472A (en) 1974-01-17
AU459938B2 true AU459938B2 (en) 1975-04-10

Family

ID=5815523

Family Applications (1)

Application Number Title Priority Date Filing Date
AU44504/72A Expired AU459938B2 (en) 1971-08-02 1972-07-12 Improvements in or relating to telegraphic keying circuits

Country Status (16)

Country Link
JP (1) JPS5238683B2 (en)
AT (1) AT323246B (en)
AU (1) AU459938B2 (en)
BE (1) BE787088A (en)
BR (1) BR7205196D0 (en)
CA (1) CA973804A (en)
CH (1) CH542556A (en)
DE (1) DE2138576C3 (en)
DK (1) DK144109C (en)
FR (1) FR2148210B1 (en)
GB (1) GB1363553A (en)
IT (1) IT963475B (en)
LU (1) LU65824A1 (en)
NL (1) NL7209920A (en)
SE (1) SE373252B (en)
ZA (1) ZA724772B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49124377U (en) * 1973-02-28 1974-10-24
JPS5494218A (en) * 1978-01-09 1979-07-25 Fuji Electric Co Ltd Dc pulse read-in circuit
DE2833732C2 (en) * 1978-08-01 1981-12-03 Siemens Ag, 1000 Berlin Und 8000 Muenchen Circuit arrangement for the transmission of direct current telegraph characters

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1090253B (en) * 1959-07-17 1960-10-06 Siemens Ag Circuit arrangement for telephone subscriber stations with indirect control of the receiving magnet
DE1216919B (en) * 1966-01-25 1966-05-18 Telefunken Patent Circuit arrangement to keep the current constant and to guarantee the zero line symmetry of double-stream telegraphic characters
DE2035379C3 (en) * 1970-07-16 1975-10-09 Siemens Ag Circuit arrangement for setting the line current in telegraph subscriber connection circuits of a switching system

Also Published As

Publication number Publication date
JPS5238683B2 (en) 1977-09-30
GB1363553A (en) 1974-08-14
SE373252B (en) 1975-01-27
NL7209920A (en) 1973-02-06
BR7205196D0 (en) 1973-05-29
DK144109C (en) 1982-05-24
JPS4825403A (en) 1973-04-03
DK144109B (en) 1981-12-07
AU4450472A (en) 1974-01-17
LU65824A1 (en) 1973-01-31
BE787088A (en) 1973-02-02
DE2138576C3 (en) 1978-05-11
DE2138576B2 (en) 1977-09-01
FR2148210A1 (en) 1973-03-11
DE2138576A1 (en) 1973-02-22
ZA724772B (en) 1973-04-25
CA973804A (en) 1975-09-02
IT963475B (en) 1974-01-10
AT323246B (en) 1975-06-25
CH542556A (en) 1973-09-30
FR2148210B1 (en) 1977-07-29

Similar Documents

Publication Publication Date Title
AU474145B2 (en) Improvements in or relating to data transmission
AU461904B2 (en) Improvements in or relating to digital communication systems
AU472937B2 (en) Improvements in or relating to equalizers
AU471293B2 (en) Improvements in or relating to networks
AU467505B2 (en) Improvements in or relating to inking devices
AU471931B2 (en) Improvements in or relating to oscillator circuits
AU471473B2 (en) Improvements in/or relating to filmstrips
AU462326B2 (en) Improvements in or relating to communication systems
AU476884B2 (en) Improvements in or relating to equalizer circuits
AU463799B2 (en) Improvements in or relating to teleprinters
CA963151A (en) Demodulator circuit
AU476471B2 (en) Improvements in or relating to equalizer circuits
AU459938B2 (en) Improvements in or relating to telegraphic keying circuits
AU472915B2 (en) Improvements in or relating to locking devices
AU462040B2 (en) Improvements in or relating to programme-controlled data communication systems
AU461120B2 (en) Improvements in or relating to teleprinter receivers
AU456984B2 (en) Improvements in or relating toscan-conversion arrangements
AU455069B2 (en) Improvements in or relating to electronic teleprinter remote switching units
AU470284B2 (en) Improvements in circuit arrangements
AU4269672A (en) Improvements in or relating to electrical circuits
AU476413B2 (en) Improvements in or relating to digital devices
AU478468B2 (en) Improvements in or relating to communication systems
AU2620771A (en) Improvements in or relating to electronic teleprinter remote switching units
AU454893B2 (en) Demodulator circuit
CA834918A (en) Bistable demodulator circuit