CH333034A - Schlüsselungseinrichtung für eine Abonnementsfernsehanlage - Google Patents

Schlüsselungseinrichtung für eine Abonnementsfernsehanlage

Info

Publication number
CH333034A
CH333034A CH333034DA CH333034A CH 333034 A CH333034 A CH 333034A CH 333034D A CH333034D A CH 333034DA CH 333034 A CH333034 A CH 333034A
Authority
CH
Switzerland
Prior art keywords
coding device
television system
subscription television
subscription
coding
Prior art date
Application number
Other languages
English (en)
Inventor
V Morris George
Original Assignee
Zenith Radio Corp
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 US338032A external-priority patent/US2910553A/en
Application filed by Zenith Radio Corp filed Critical Zenith Radio Corp
Publication of CH333034A publication Critical patent/CH333034A/de

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
    • H04N7/162—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
CH333034D 1953-02-20 1954-02-19 Schlüsselungseinrichtung für eine Abonnementsfernsehanlage CH333034A (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US338032A US2910553A (en) 1953-02-20 1953-02-20 Subscription television encoding apparatus
US40719254 US2866961A (en) 1953-02-20 1954-02-01 Subscription television encoding apparatus

Publications (1)

Publication Number Publication Date
CH333034A true CH333034A (de) 1958-09-30

Family

ID=26990998

Family Applications (1)

Application Number Title Priority Date Filing Date
CH333034D CH333034A (de) 1953-02-20 1954-02-19 Schlüsselungseinrichtung für eine Abonnementsfernsehanlage

Country Status (7)

Country Link
US (1) US2866961A (de)
BE (1) BE526655A (de)
CH (1) CH333034A (de)
DE (1) DE946068C (de)
FR (1) FR1099999A (de)
GB (1) GB756758A (de)
NL (1) NL111338C (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2931854A (en) * 1955-11-18 1960-04-05 Zenith Radio Corp Filter-rectifier-gate circuit

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2539556A (en) * 1941-07-11 1951-01-30 Bell Telephone Labor Inc Variable delay speech privacy system
US2414101A (en) * 1943-06-04 1947-01-14 Faximile Inc Graphic privacy system
US2554507A (en) * 1947-08-11 1951-05-29 Faximile Inc Ciphering device

Also Published As

Publication number Publication date
US2866961A (en) 1958-12-30
DE946068C (de) 1956-07-26
FR1099999A (fr) 1955-09-14
GB756758A (en) 1956-09-12
BE526655A (de) 1956-08-17
NL111338C (de) 1965-06-15

Similar Documents

Publication Publication Date Title
AT186300B (de) Farbfernsehsystem
FR1082517A (fr) Bouchons
AT249524B (de) Portionengefäß für Joghurt
CH329224A (de) Schlüsselungseinrichtung für Abonnementsfernsehanlage
CH353776A (de) Radiodiversity-Empfangseinrichtung
FR1120543A (fr) Système perfectionné de télévision par abonnement
CH333034A (de) Schlüsselungseinrichtung für eine Abonnementsfernsehanlage
CH329223A (de) Abonnementsfernsehanlage
AT278103B (de) Drahtfunksystem für mehrere Programme
FR1075795A (fr) Appareil transporteur guidé
CH350322A (de) Schlüsselungseinrichtung für Abonnementsfernsehanlagen
CH352710A (de) Abonnements-Fernsehanlage
FR1075977A (fr) Aménagement aux bouteilles
FR1082586A (fr) Entonnoir
FR1118808A (fr) étrier
AT199103B (de) Kardiervorrichtung
CH324098A (de) Fernsehübertragungsanlage
FR1094188A (fr) Entonnoir
CH325290A (de) Elektrotheraphieapparat
DK91128C (da) Fjernsynsfordelingsanlæg.
AT180981B (de) Fernmeldeanlage
AT193942B (de) Rundfunk-Gerät
FR1118453A (fr) Système de télévision
AT183396B (de) Drahtzieheinrichtung
FR1163951A (fr) Système de codage perfectionné