CA1058293A - Systeme de television par cable a fibres, transducteur et detecteur optiques - Google Patents

Systeme de television par cable a fibres, transducteur et detecteur optiques

Info

Publication number
CA1058293A
CA1058293A CA214,880A CA214880A CA1058293A CA 1058293 A CA1058293 A CA 1058293A CA 214880 A CA214880 A CA 214880A CA 1058293 A CA1058293 A CA 1058293A
Authority
CA
Canada
Prior art keywords
central station
optical fibre
subscribers
signals
fibre
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
CA214,880A
Other languages
English (en)
Other versions
CA214880S (en
Inventor
Albert E. 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
Application granted granted Critical
Publication of CA1058293A publication Critical patent/CA1058293A/fr
Expired legal-status Critical Current

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
    • H04N7/17354—Control of the passage of the selected programme in an intermediate station common to a plurality of user terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/25—Arrangements specific to fibre transmission
    • H04B10/2589—Bidirectional transmission
    • H04B10/25891—Transmission components
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/22—Adaptations for optical transmission

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Optical Communication System (AREA)
  • Optical Couplings Of Light Guides (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
CA214,880A 1973-12-03 1974-11-28 Systeme de television par cable a fibres, transducteur et detecteur optiques Expired CA1058293A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB55933/73A GB1486421A (en) 1973-12-03 1973-12-03 Broadcast relay systems

Publications (1)

Publication Number Publication Date
CA1058293A true CA1058293A (fr) 1979-07-10

Family

ID=10475262

Family Applications (1)

Application Number Title Priority Date Filing Date
CA214,880A Expired CA1058293A (fr) 1973-12-03 1974-11-28 Systeme de television par cable a fibres, transducteur et detecteur optiques

Country Status (7)

Country Link
AU (1) AU7590574A (fr)
CA (1) CA1058293A (fr)
ES (1) ES432542A1 (fr)
GB (1) GB1486421A (fr)
IT (1) IT1023486B (fr)
MY (1) MY7800253A (fr)
ZA (1) ZA747630B (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1586543A (en) * 1978-01-23 1981-03-18 Communications Patents Ltd Wired broadcasting systems
DE2934358A1 (de) * 1979-08-24 1981-03-26 Siemens AG, 1000 Berlin und 8000 München Breitband-fernmeldesystem
DE3224406A1 (de) * 1981-07-01 1983-01-20 Canon K.K., Tokyo Bilduebertragungssystem
NL8204722A (nl) * 1982-12-07 1984-07-02 Philips Nv Distributiesysteem voor lokaal fibernet.
GB2212021B (en) * 1987-11-06 1991-07-03 Stc Plc Radio frequency generator

Also Published As

Publication number Publication date
GB1486421A (en) 1977-09-21
ES432542A1 (es) 1977-01-01
AU7590574A (en) 1976-06-03
MY7800253A (en) 1978-12-31
ZA747630B (en) 1975-12-31
IT1023486B (it) 1978-05-10

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Legal Events

Date Code Title Description
MKEX Expiry

Effective date: 19960710