GB274491A - Method and apparatus for using telephone subscribers' loops for transmission and reception of broadcasting - Google Patents

Method and apparatus for using telephone subscribers' loops for transmission and reception of broadcasting

Info

Publication number
GB274491A
GB274491A GB18789/27A GB1878927A GB274491A GB 274491 A GB274491 A GB 274491A GB 18789/27 A GB18789/27 A GB 18789/27A GB 1878927 A GB1878927 A GB 1878927A GB 274491 A GB274491 A GB 274491A
Authority
GB
United Kingdom
Prior art keywords
wires
loops
station
highfrequency
wired
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
GB18789/27A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB274491A publication Critical patent/GB274491A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/54—Systems for transmission via power distribution lines
    • H04B3/56—Circuits for coupling, blocking, or by-passing of signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/65—Arrangements characterised by transmission systems for broadcast
    • H04H20/76—Wired systems
    • H04H20/77—Wired systems using carrier waves
    • H04H20/81—Wired systems using carrier waves combined with telephone network over which the broadcast is continuously available

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

274,491. Squier, G. O. July 17, 1926, [Convention date]. Wired wireless systems; multiplex signalling. - In a wired-wireless system modulated high-frequency currents are passed over the individual subscribers' loops of a telephone system by impressing high-frequency energy simultaneously on all the loops by means of the wires of an otherwise unused loop. Highfrequency signals are passed from transmitting- station 1, 2, 3 to a central pair of wires 7 in a telephone cable 10 through transformers 5, 6. The signals are then communicated to the other pairs of wires 11 in the cable by radiation and capacity effects. At a receiving-station 13 two small highfrequency bye-pass condensers 19, 20 are connected across wires 12 and a wireless receiving- set 22 is connected to a point between the condensers.
GB18789/27A 1926-07-17 1927-07-15 Method and apparatus for using telephone subscribers' loops for transmission and reception of broadcasting Expired GB274491A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US274491XA 1926-07-17 1926-07-17

Publications (1)

Publication Number Publication Date
GB274491A true GB274491A (en) 1928-07-26

Family

ID=21837809

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18789/27A Expired GB274491A (en) 1926-07-17 1927-07-15 Method and apparatus for using telephone subscribers' loops for transmission and reception of broadcasting

Country Status (3)

Country Link
DE (1) DE537206C (en)
FR (1) FR644877A (en)
GB (1) GB274491A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3022465A (en) * 1959-01-15 1962-02-20 Philco Corp Plural-transistor circuit with fuse means

Also Published As

Publication number Publication date
DE537206C (en) 1931-10-31
FR644877A (en) 1927-10-16

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