GB915689A - Improvements in transmission systems - Google Patents

Improvements in transmission systems

Info

Publication number
GB915689A
GB915689A GB34153/59A GB3415359A GB915689A GB 915689 A GB915689 A GB 915689A GB 34153/59 A GB34153/59 A GB 34153/59A GB 3415359 A GB3415359 A GB 3415359A GB 915689 A GB915689 A GB 915689A
Authority
GB
United Kingdom
Prior art keywords
converter
voltage
line
oct
transmission systems
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
GB34153/59A
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.)
Philips Electrical Industries Ltd
Original Assignee
Philips Electrical Industries 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 Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB915689A publication Critical patent/GB915689A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/44—Arrangements for feeding power to a repeater along the transmission line

Landscapes

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

Abstract

915,689. Feeding unattended repeaters. PHILIPS ELECTRICAL INDUSTRIES Ltd. Oct. 8, 1959 [Oct. 9, 1958], No. 34153/59. Class 40 (4). Several transistor amplifiers, such as 2 and 3, spaced along a transmission line 10 are traversed in series by a supply current furnished by a voltage-converter 4, 5, 6, 7, 8 including a transistor oscillator, the converter in the no-load condition producing a voltage below the maximum permissible voltage across the line; if the line is short-circuited, the converter ceases to generate since the damping of the transformer 6 becomes too great. The converter is started by means of a separate pulse-generator 25.
GB34153/59A 1958-10-09 1959-10-08 Improvements in transmission systems Expired GB915689A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL232128 1958-10-09

Publications (1)

Publication Number Publication Date
GB915689A true GB915689A (en) 1963-01-16

Family

ID=19751380

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34153/59A Expired GB915689A (en) 1958-10-09 1959-10-08 Improvements in transmission systems

Country Status (5)

Country Link
JP (1) JPS363305B1 (en)
CH (1) CH379580A (en)
DE (1) DE1210463B (en)
FR (1) FR1237434A (en)
GB (1) GB915689A (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE675679C (en) * 1933-07-21 1939-05-17 Electrical Res Prod Inc Intermediate tube amplifier for submarine cable systems
DE761709C (en) * 1942-01-25 1954-10-11 Siemens & Halske A G Circuit arrangement for the power supply of four-wire telephone amplifiers via the speech lines
NL195255A (en) * 1954-04-06

Also Published As

Publication number Publication date
FR1237434A (en) 1960-07-29
CH379580A (en) 1964-07-15
JPS363305B1 (en) 1961-04-17
DE1210463B (en) 1966-02-10

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