NL9102158A - Methode en systeem ten behoeve van betaal-tv. - Google Patents

Methode en systeem ten behoeve van betaal-tv. Download PDF

Info

Publication number
NL9102158A
NL9102158A NL9102158A NL9102158A NL9102158A NL 9102158 A NL9102158 A NL 9102158A NL 9102158 A NL9102158 A NL 9102158A NL 9102158 A NL9102158 A NL 9102158A NL 9102158 A NL9102158 A NL 9102158A
Authority
NL
Netherlands
Prior art keywords
frequency
signal
carrier
fdm
carrier wave
Prior art date
Application number
NL9102158A
Other languages
English (en)
Dutch (nl)
Original Assignee
Nederland Ptt
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 Nederland Ptt filed Critical Nederland Ptt
Priority to NL9102158A priority Critical patent/NL9102158A/nl
Priority to DE69220207T priority patent/DE69220207T2/de
Priority to EP92203933A priority patent/EP0561066B1/de
Priority to ES92203933T priority patent/ES2102451T3/es
Priority to AT92203933T priority patent/ATE154187T1/de
Publication of NL9102158A publication Critical patent/NL9102158A/nl

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
    • H04N7/167—Systems rendering the television signal unintelligible and subsequently intelligible

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Television Systems (AREA)
  • Small-Scale Networks (AREA)
NL9102158A 1991-12-20 1991-12-20 Methode en systeem ten behoeve van betaal-tv. NL9102158A (nl)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NL9102158A NL9102158A (nl) 1991-12-20 1991-12-20 Methode en systeem ten behoeve van betaal-tv.
DE69220207T DE69220207T2 (de) 1991-12-20 1992-12-15 Gebührenfernseh-Verfahren und -System
EP92203933A EP0561066B1 (de) 1991-12-20 1992-12-15 Gebührenfernseh-Verfahren und -System
ES92203933T ES2102451T3 (es) 1991-12-20 1992-12-15 Procedimiento y sistema de una tv de pago.
AT92203933T ATE154187T1 (de) 1991-12-20 1992-12-15 Gebührenfernseh-verfahren und -system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL9102158A NL9102158A (nl) 1991-12-20 1991-12-20 Methode en systeem ten behoeve van betaal-tv.
NL9102158 1991-12-20

Publications (1)

Publication Number Publication Date
NL9102158A true NL9102158A (nl) 1993-07-16

Family

ID=19860080

Family Applications (1)

Application Number Title Priority Date Filing Date
NL9102158A NL9102158A (nl) 1991-12-20 1991-12-20 Methode en systeem ten behoeve van betaal-tv.

Country Status (5)

Country Link
EP (1) EP0561066B1 (de)
AT (1) ATE154187T1 (de)
DE (1) DE69220207T2 (de)
ES (1) ES2102451T3 (de)
NL (1) NL9102158A (de)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB871597A (en) * 1958-05-08 1961-06-28 Rank Organisation Ltd Improvements in or relating to television systems
NL7416457A (nl) * 1973-12-19 1975-06-23 Indesit Schakeling voor het verwerken van televisie- -kleursignalen.
US3936593A (en) * 1974-08-05 1976-02-03 Gte Laboratories Incorporated Scrambler and decoder for a television signal
CA2021481A1 (en) * 1989-07-20 1991-01-21 Luis A. Rovira Method of subcarrier multiplication which preserves am information in fm systems

Also Published As

Publication number Publication date
EP0561066A1 (de) 1993-09-22
ATE154187T1 (de) 1997-06-15
ES2102451T3 (es) 1997-08-01
DE69220207T2 (de) 1997-11-13
DE69220207D1 (de) 1997-07-10
EP0561066B1 (de) 1997-06-04

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Legal Events

Date Code Title Description
A1B A search report has been drawn up
BV The patent application has lapsed