BE807507A - Procede permettant a un convertisseur de groupe d'etablir un canal protege - Google Patents

Procede permettant a un convertisseur de groupe d'etablir un canal protege

Info

Publication number
BE807507A
BE807507A BE137913A BE137913A BE807507A BE 807507 A BE807507 A BE 807507A BE 137913 A BE137913 A BE 137913A BE 137913 A BE137913 A BE 137913A BE 807507 A BE807507 A BE 807507A
Authority
BE
Belgium
Prior art keywords
establish
method allowing
group converter
protected channel
protected
Prior art date
Application number
BE137913A
Other languages
English (en)
French (fr)
Inventor
E C Walding
Original Assignee
Oak Industries Inc
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 Oak Industries Inc filed Critical Oak Industries Inc
Publication of BE807507A publication Critical patent/BE807507A/xx

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Superheterodyne Receivers (AREA)
  • Details Of Television Systems (AREA)
  • Television Systems (AREA)
BE137913A 1973-01-11 1973-11-19 Procede permettant a un convertisseur de groupe d'etablir un canal protege BE807507A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US322852A US3882266A (en) 1973-01-11 1973-01-11 Apparatus for converting selected channels

Publications (1)

Publication Number Publication Date
BE807507A true BE807507A (fr) 1974-03-15

Family

ID=23256713

Family Applications (1)

Application Number Title Priority Date Filing Date
BE137913A BE807507A (fr) 1973-01-11 1973-11-19 Procede permettant a un convertisseur de groupe d'etablir un canal protege

Country Status (11)

Country Link
US (1) US3882266A (de)
JP (1) JPS49105413A (de)
BE (1) BE807507A (de)
CA (1) CA986616A (de)
CH (1) CH556124A (de)
DE (1) DE2401314A1 (de)
ES (1) ES420129A1 (de)
FR (1) FR2214221B1 (de)
GB (1) GB1397856A (de)
IT (1) IT994473B (de)
NL (1) NL7317262A (de)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5173312A (de) * 1974-12-20 1976-06-25 Matsushita Electric Ind Co Ltd
JPS6036152B2 (ja) * 1976-05-07 1985-08-19 パイオニア株式会社 Ｃａｔｖ用端末装置
US4109280A (en) * 1976-06-28 1978-08-22 Massachusetts Institute Of Technology Television interface device
US4225823A (en) * 1977-02-26 1980-09-30 Nippon Gakki Seizo Kabushiki Kaisha Front end circuits of FM receivers
JPS5539443A (en) * 1978-09-13 1980-03-19 Pioneer Electronic Corp Converter for catv
US4191966A (en) * 1978-10-02 1980-03-04 Rca Corporation CATV block converter
US4272791A (en) * 1979-03-26 1981-06-09 Rifken Jerome C Method and apparatus for video recording
JPS5715522A (en) * 1980-07-03 1982-01-26 Alps Electric Co Ltd Channel selector for catv
FR2530394B1 (fr) * 1982-07-13 1986-05-16 Thomson Csf Dispositif de multiplexage et de demultiplexage de voies video
FR2530906B1 (fr) * 1982-07-23 1986-05-16 Lignes Telegraph Telephon Dispositif de selection en frequence d'informations et reseau de teledistribution utilisant un tel dispositif
US4633513A (en) * 1984-05-31 1986-12-30 Berko Technology Corporation Method and apparatus for converting television signals
FR2566609A1 (fr) * 1984-06-20 1985-12-27 Cedepe Sa Dispositif pour la distribution par cable d'une emission a des recepteurs raccordes a ce cable
EP0231120A3 (de) * 1986-01-29 1989-11-23 Global Technologies Inc. Steuer- und Zählsystem für Bezahlfernsehen über ein Kabelnetz
US5014309A (en) * 1988-03-10 1991-05-07 Scientific-Atlanta, Inc. Off-premises cable television channel interdiction method and apparatus
JPH0243822A (ja) * 1988-08-03 1990-02-14 Toshiba Corp テレビジョンチューナ
SE8803814A0 (sv) * 1988-10-25 1990-04-26 Spacenet Ab Anordning vid betal-TV-system
US5483277A (en) * 1992-12-15 1996-01-09 Alcatel Network Systems Simplified set-top converter for broadband switched network
AU3584795A (en) * 1994-09-22 1996-04-09 Asian Television & Communications International, L.L.C. A system for providing tiered bandwidth expansion and remote authorization capability for a cable television system
US5512963A (en) * 1995-01-05 1996-04-30 Mankovitz; Roy J. Apparatus and methods for providing combining multiple video sources
US5621793A (en) * 1995-05-05 1997-04-15 Rubin, Bednarek & Associates, Inc. TV set top box using GPS
US6108365A (en) * 1995-05-05 2000-08-22 Philip A. Rubin And Associates, Inc. GPS data access system
PT2573989T (pt) * 2011-09-12 2018-10-16 Televes Sa Dispositivo para a supressão de sinais de alta frequência interferentes

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3333198A (en) * 1965-12-29 1967-07-25 Ampli Vision Corp Television converter for catv system
US3562650A (en) * 1967-12-20 1971-02-09 Standard Kollsman Ind Inc Catv system with increased channel capabilities
US3643164A (en) * 1969-11-24 1972-02-15 Anaren Microwave Inc Signal selection apparatus
US3639840A (en) * 1969-11-28 1972-02-01 Spencer Kennedy Lab Inc Multicarrier transmission system
US3730980A (en) * 1971-05-24 1973-05-01 Television Communications Corp Electronic communication apparatus for selectively distributing supplementary private programming

Also Published As

Publication number Publication date
US3882266A (en) 1975-05-06
IT994473B (it) 1975-10-20
NL7317262A (de) 1974-07-15
GB1397856A (en) 1975-06-18
FR2214221B1 (de) 1977-06-10
CA986616A (en) 1976-03-30
DE2401314A1 (de) 1974-07-18
JPS49105413A (de) 1974-10-05
FR2214221A1 (de) 1974-08-09
ES420129A1 (es) 1976-03-01
CH556124A (de) 1974-11-15

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