FR2573265B1 - COMMUNICATION SYSTEM IN WHICH TELEVISION SIGNALS ARE DISTRIBUTED TO SUBSCRIBERS THROUGH FIBER OPTICAL CABLES - Google Patents

COMMUNICATION SYSTEM IN WHICH TELEVISION SIGNALS ARE DISTRIBUTED TO SUBSCRIBERS THROUGH FIBER OPTICAL CABLES

Info

Publication number
FR2573265B1
FR2573265B1 FR8516770A FR8516770A FR2573265B1 FR 2573265 B1 FR2573265 B1 FR 2573265B1 FR 8516770 A FR8516770 A FR 8516770A FR 8516770 A FR8516770 A FR 8516770A FR 2573265 B1 FR2573265 B1 FR 2573265B1
Authority
FR
France
Prior art keywords
subscribers
distributed
communication system
television signals
fiber optical
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
FR8516770A
Other languages
French (fr)
Other versions
FR2573265A1 (en
Inventor
Albert Ernest Cutler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Communications Patents Ltd
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 FR2573265A1 publication Critical patent/FR2573265A1/en
Application granted granted Critical
Publication of FR2573265B1 publication Critical patent/FR2573265B1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/24—Systems for the transmission of television signals using pulse code modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/10—Adaptations for transmission by electrical cable
    • 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
    • H04N7/17363—Control of the passage of the selected programme at or near the user terminal
    • 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)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Eye Examination Apparatus (AREA)
  • Time-Division Multiplex Systems (AREA)
FR8516770A 1984-11-13 1985-11-13 COMMUNICATION SYSTEM IN WHICH TELEVISION SIGNALS ARE DISTRIBUTED TO SUBSCRIBERS THROUGH FIBER OPTICAL CABLES Expired FR2573265B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8428647A GB8428647D0 (en) 1984-11-13 1984-11-13 Communication system

Publications (2)

Publication Number Publication Date
FR2573265A1 FR2573265A1 (en) 1986-05-16
FR2573265B1 true FR2573265B1 (en) 1989-12-15

Family

ID=10569658

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8516770A Expired FR2573265B1 (en) 1984-11-13 1985-11-13 COMMUNICATION SYSTEM IN WHICH TELEVISION SIGNALS ARE DISTRIBUTED TO SUBSCRIBERS THROUGH FIBER OPTICAL CABLES

Country Status (4)

Country Link
JP (1) JPS61166236A (en)
DE (1) DE3539378A1 (en)
FR (1) FR2573265B1 (en)
GB (2) GB8428647D0 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1314457A (en) * 1970-11-12 1973-04-26 Communications Patents Ltd Wired broadcasting systems
NL7405405A (en) * 1974-04-22 1975-10-24 Philips Nv TELEVISION DISTRIBUTION SYSTEM.
DE2951495A1 (en) * 1979-12-20 1981-07-02 Siemens AG, 1000 Berlin und 8000 München BROADBAND TELECOMMUNICATION SYSTEM
NL8006976A (en) * 1980-12-22 1982-07-16 Delta Kabel Bv SWITCHING SYSTEM.
US4491983A (en) * 1981-05-14 1985-01-01 Times Fiber Communications, Inc. Information distribution system
EP0094794B1 (en) * 1982-05-14 1992-04-22 Communications Patents Limited Communications system

Also Published As

Publication number Publication date
GB2167276A (en) 1986-05-21
GB8428647D0 (en) 1984-12-19
DE3539378A1 (en) 1986-05-15
GB2167276B (en) 1988-11-02
FR2573265A1 (en) 1986-05-16
JPS61166236A (en) 1986-07-26
GB8527573D0 (en) 1985-12-11

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Legal Events

Date Code Title Description
ST Notification of lapse