SE8007165L - INFORMATION TRANSMISSION SYSTEM - Google Patents

INFORMATION TRANSMISSION SYSTEM

Info

Publication number
SE8007165L
SE8007165L SE8007165A SE8007165A SE8007165L SE 8007165 L SE8007165 L SE 8007165L SE 8007165 A SE8007165 A SE 8007165A SE 8007165 A SE8007165 A SE 8007165A SE 8007165 L SE8007165 L SE 8007165L
Authority
SE
Sweden
Prior art keywords
receiver
encoder
decoder
data
transmission system
Prior art date
Application number
SE8007165A
Other languages
Swedish (sv)
Other versions
SE451104B (en
Inventor
Carl Rune Wern
George Herman Wern
Lars Ake Wern
Original Assignee
Carl Rune Wern
George Herman Wern
Wern Lars Aake
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 Carl Rune Wern, George Herman Wern, Wern Lars Aake filed Critical Carl Rune Wern
Priority to SE8007165A priority Critical patent/SE451104B/en
Publication of SE8007165L publication Critical patent/SE8007165L/en
Publication of SE451104B publication Critical patent/SE451104B/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/162—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing
    • H04N7/165—Centralised control of user terminal ; Registering at central

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Transmitters (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Television Systems (AREA)

Abstract

The data transmission system comprises a transmitter with an attached encoder. It has a control input, controls for the encoder, and a receiver which receives the encoded data from the transmitter via a data channel. The receiver has a decoder unit. The decoder has a control input connected to the encoder contro-control via a signal channel which has a recording unit which registers the connection of the decoder. The signal channel comprises a telephone connection, and the receiver has components for automatic establishment of telephonic connection at a specific time, together with devices for permanent storage of the data as received within a predetermined successive time interval. (Provisional Basic advised week E22)
SE8007165A 1980-10-13 1980-10-13 Coded data transmission system SE451104B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE8007165A SE451104B (en) 1980-10-13 1980-10-13 Coded data transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8007165A SE451104B (en) 1980-10-13 1980-10-13 Coded data transmission system

Publications (2)

Publication Number Publication Date
SE8007165L true SE8007165L (en) 1982-04-14
SE451104B SE451104B (en) 1987-08-31

Family

ID=20341974

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8007165A SE451104B (en) 1980-10-13 1980-10-13 Coded data transmission system

Country Status (1)

Country Link
SE (1) SE451104B (en)

Also Published As

Publication number Publication date
SE451104B (en) 1987-08-31

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