IT7852382A0 - IMPROVEMENTS RELATING TO CABLE RADIO BROADCASTING SYSTEMS - Google Patents

IMPROVEMENTS RELATING TO CABLE RADIO BROADCASTING SYSTEMS

Info

Publication number
IT7852382A0
IT7852382A0 IT7852382A IT5238278A IT7852382A0 IT 7852382 A0 IT7852382 A0 IT 7852382A0 IT 7852382 A IT7852382 A IT 7852382A IT 5238278 A IT5238278 A IT 5238278A IT 7852382 A0 IT7852382 A0 IT 7852382A0
Authority
IT
Italy
Prior art keywords
improvements relating
radio broadcasting
broadcasting systems
cable radio
cable
Prior art date
Application number
IT7852382A
Other languages
Italian (it)
Other versions
IT1158175B (en
Original Assignee
Communications Patents Ltd
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 Communications Patents Ltd filed Critical Communications Patents Ltd
Publication of IT7852382A0 publication Critical patent/IT7852382A0/en
Application granted granted Critical
Publication of IT1158175B publication Critical patent/IT1158175B/en

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00Television systems
    • H04N7/16Analogue secrecy systems; Analogue subscription systems
    • H04N7/173Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H04N7/17345Control of the passage of the selected programme
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00Television systems
    • H04N7/22Adaptations for optical transmission
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00Television systems
    • H04N7/16Analogue secrecy systems; Analogue subscription systems
    • H04N7/173Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H04N2007/1739Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal the upstream communication being transmitted via a separate link, e.g. telephone line

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
IT52382/78A 1978-01-23 1978-12-20 REFERENCES RELATED TO CABLE BROADCASTING SYSTEMS IT1158175B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2572/78A GB1586543A (en) 1978-01-23 1978-01-23 Wired broadcasting systems

Publications (2)

Publication Number Publication Date
IT7852382A0 true IT7852382A0 (en) 1978-12-20
IT1158175B IT1158175B (en) 1987-02-18

Family

ID=9741939

Family Applications (1)

Application Number Title Priority Date Filing Date
IT52382/78A IT1158175B (en) 1978-01-23 1978-12-20 REFERENCES RELATED TO CABLE BROADCASTING SYSTEMS

Country Status (12)

Country Link
JP (1) JPS54116105A (en)
AU (1) AU4254878A (en)
BE (1) BE873611A (en)
DE (1) DE2900813A1 (en)
ES (1) ES476249A1 (en)
FR (1) FR2415404A1 (en)
GB (1) GB1586543A (en)
IL (1) IL56182A0 (en)
IT (1) IT1158175B (en)
NL (1) NL7900520A (en)
SE (1) SE7900540L (en)
ZA (1) ZA787225B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3013533A1 (en) * 1980-04-08 1981-10-15 Siemens Ag CIRCUIT ARRANGEMENT WITH A LASER DIODE FOR TRANSMITTING MESSAGE SIGNALS VIA A LIGHT WAVE GUIDE
DE3224406A1 (en) * 1981-07-01 1983-01-20 Canon K.K., Tokyo IMAGE TRANSFER SYSTEM
MY112412A (en) * 1993-10-14 2001-06-30 Nuchem Australia Pty Ltd Multimedia enabled network.
GB2296169A (en) * 1994-12-14 1996-06-19 Metrovideo Ltd Video transmission systems

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1306366A (en) * 1969-05-22 1973-02-07
GB1486421A (en) * 1973-12-03 1977-09-21 Communications Patents Ltd Broadcast relay systems
FR2271727A1 (en) * 1974-02-06 1975-12-12 Radio Diffusion Tv Francaise Cable television distribution system - has separate return channel from subscriber on telephone line to reduce noise
DE2603644C3 (en) * 1976-01-30 1980-02-28 Siemens Ag, 1000 Berlin Und 8000 Muenchen Community antenna system

Also Published As

Publication number Publication date
FR2415404A1 (en) 1979-08-17
JPS54116105A (en) 1979-09-10
SE7900540L (en) 1979-07-24
AU4254878A (en) 1979-08-02
IT1158175B (en) 1987-02-18
IL56182A0 (en) 1979-03-12
NL7900520A (en) 1979-07-25
DE2900813A1 (en) 1979-07-26
BE873611A (en) 1979-05-16
GB1586543A (en) 1981-03-18
ES476249A1 (en) 1979-05-16
ZA787225B (en) 1979-12-27

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