IT1158175B - Perfezionamenti relativi ai sistemi di radiodiffusione via cavo - Google Patents

Perfezionamenti relativi ai sistemi di radiodiffusione via cavo

Info

Publication number
IT1158175B
IT1158175B IT52382/78A IT5238278A IT1158175B IT 1158175 B IT1158175 B IT 1158175B IT 52382/78 A IT52382/78 A IT 52382/78A IT 5238278 A IT5238278 A IT 5238278A IT 1158175 B IT1158175 B IT 1158175B
Authority
IT
Italy
Prior art keywords
broadcasting systems
cable broadcasting
references related
references
cable
Prior art date
Application number
IT52382/78A
Other languages
English (en)
Other versions
IT7852382A0 (it
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/it
Application granted granted Critical
Publication of IT1158175B publication Critical patent/IT1158175B/it

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
    • H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H04N7/17345—Control of the passage of the selected programme
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/22—Adaptations for optical transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H04N2007/1739—Analogue 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 Perfezionamenti relativi ai sistemi di radiodiffusione via cavo IT1158175B (it)

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 IT7852382A0 (it) 1978-12-20
IT1158175B true IT1158175B (it) 1987-02-18

Family

ID=9741939

Family Applications (1)

Application Number Title Priority Date Filing Date
IT52382/78A IT1158175B (it) 1978-01-23 1978-12-20 Perfezionamenti relativi ai sistemi di radiodiffusione via cavo

Country Status (12)

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

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3013533A1 (de) * 1980-04-08 1981-10-15 Siemens Ag Schaltungsanordnung mit einer laserdiode zur uebertragung von nachrichtensiglnalen ueber einen lichtwellenleiter
DE3224406A1 (de) * 1981-07-01 1983-01-20 Canon K.K., Tokyo Bilduebertragungssystem
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 (it) * 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 (de) * 1976-01-30 1980-02-28 Siemens Ag, 1000 Berlin Und 8000 Muenchen Gemeinschaftsantennenanlage

Also Published As

Publication number Publication date
ES476249A1 (es) 1979-05-16
IL56182A0 (en) 1979-03-12
IT7852382A0 (it) 1978-12-20
FR2415404A1 (fr) 1979-08-17
AU4254878A (en) 1979-08-02
BE873611A (fr) 1979-05-16
GB1586543A (en) 1981-03-18
NL7900520A (nl) 1979-07-25
ZA787225B (en) 1979-12-27
DE2900813A1 (de) 1979-07-26
SE7900540L (sv) 1979-07-24
JPS54116105A (en) 1979-09-10

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