CH542558A - System with a central television information point that can be occupied via telephone lines - Google Patents

System with a central television information point that can be occupied via telephone lines

Info

Publication number
CH542558A
CH542558A CH567672A CH567672A CH542558A CH 542558 A CH542558 A CH 542558A CH 567672 A CH567672 A CH 567672A CH 567672 A CH567672 A CH 567672A CH 542558 A CH542558 A CH 542558A
Authority
CH
Switzerland
Prior art keywords
telephone lines
information point
via telephone
television information
central television
Prior art date
Application number
CH567672A
Other languages
German (de)
Inventor
Klein Peter
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 CH542558A publication Critical patent/CH542558A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Facsimiles In General (AREA)
CH567672A 1971-05-19 1972-04-18 System with a central television information point that can be occupied via telephone lines CH542558A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712124971 DE2124971A1 (en) 1971-05-19 1971-05-19 Arrangement for a central television information center that can be occupied via telephone lines

Publications (1)

Publication Number Publication Date
CH542558A true CH542558A (en) 1973-09-30

Family

ID=5808410

Family Applications (1)

Application Number Title Priority Date Filing Date
CH567672A CH542558A (en) 1971-05-19 1972-04-18 System with a central television information point that can be occupied via telephone lines

Country Status (10)

Country Link
AT (1) AT313997B (en)
BE (1) BE783744A (en)
CH (1) CH542558A (en)
DE (1) DE2124971A1 (en)
FR (1) FR2138100B1 (en)
GB (1) GB1395614A (en)
IT (1) IT955597B (en)
LU (1) LU65379A1 (en)
NL (1) NL7206532A (en)
SE (1) SE372122B (en)

Also Published As

Publication number Publication date
DE2124971A1 (en) 1972-11-30
FR2138100B1 (en) 1973-07-13
AT313997B (en) 1974-03-11
SE372122B (en) 1974-12-09
NL7206532A (en) 1972-11-21
FR2138100A1 (en) 1972-12-29
GB1395614A (en) 1975-05-29
IT955597B (en) 1973-09-29
LU65379A1 (en) 1972-08-24
BE783744A (en) 1972-11-20

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Legal Events

Date Code Title Description
PL Patent ceased