GB1471173A - Automatic data transmission systems - Google Patents

Automatic data transmission systems

Info

Publication number
GB1471173A
GB1471173A GB3120374A GB3120374A GB1471173A GB 1471173 A GB1471173 A GB 1471173A GB 3120374 A GB3120374 A GB 3120374A GB 3120374 A GB3120374 A GB 3120374A GB 1471173 A GB1471173 A GB 1471173A
Authority
GB
United Kingdom
Prior art keywords
switch
modem
switches
relay
operated
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
GB3120374A
Other languages
English (en)
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
Priority claimed from DE19732345036 external-priority patent/DE2345036C2/de
Application filed by Siemens AG filed Critical Siemens AG
Publication of GB1471173A publication Critical patent/GB1471173A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Telephonic Communication Services (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
GB3120374A 1973-09-06 1974-07-15 Automatic data transmission systems Expired GB1471173A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732345036 DE2345036C2 (de) 1973-09-06 Anordnung zum selbsttätigen Übertragen von Daten von einer u n bedienten Außenstelle zu einer Zentralstelle

Publications (1)

Publication Number Publication Date
GB1471173A true GB1471173A (en) 1977-04-21

Family

ID=5891859

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3120374A Expired GB1471173A (en) 1973-09-06 1974-07-15 Automatic data transmission systems

Country Status (11)

Country Link
AT (1) AT337298B (da)
BE (1) BE819634R (da)
CH (1) CH577772A5 (da)
DK (1) DK140777B (da)
FR (1) FR2243567B1 (da)
GB (1) GB1471173A (da)
IT (1) IT1046809B (da)
LU (1) LU70849A1 (da)
NL (1) NL7410579A (da)
SE (1) SE7411165L (da)
ZA (1) ZA745666B (da)

Also Published As

Publication number Publication date
DE2345036A1 (da) 1975-03-20
DK140777C (da) 1980-04-14
FR2243567A2 (da) 1975-04-04
DK469874A (da) 1975-05-05
IT1046809B (it) 1980-07-31
DE2345036B1 (de) 1975-03-20
AT337298B (de) 1977-06-27
FR2243567B1 (da) 1980-11-07
DK140777B (da) 1979-11-12
SE7411165L (da) 1975-03-07
BE819634R (fr) 1975-03-06
ATA654574A (de) 1976-10-15
CH577772A5 (da) 1976-07-15
LU70849A1 (da) 1975-06-11
NL7410579A (nl) 1975-03-10
ZA745666B (en) 1975-10-29

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee