GB528300A - Improvements in or relating to electrical signalling systems - Google Patents

Improvements in or relating to electrical signalling systems

Info

Publication number
GB528300A
GB528300A GB1323239A GB1323239A GB528300A GB 528300 A GB528300 A GB 528300A GB 1323239 A GB1323239 A GB 1323239A GB 1323239 A GB1323239 A GB 1323239A GB 528300 A GB528300 A GB 528300A
Authority
GB
United Kingdom
Prior art keywords
condenser
impedances
interference
frequencies
relating
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
GB1323239A
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
Priority to GB1323239A priority Critical patent/GB528300A/en
Publication of GB528300A publication Critical patent/GB528300A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/32—Reducing cross-talk, e.g. by compensating

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

528,300. Preventing interference. HALSEY, R. J. May 3, 1939, No. 13232. [Class 40 (iv)] High-frequency interference is eliminated from an overhead carrier line by grounding both wires through the windings of a tightly coupled transformer and suitably chosen or adjustable impedances. The connection to ground may include a common condenser which tunes the leakage inductance to the interfering frequency. The individual impedances may each consist of a resistance shunted by a condenser or a variably tapped resistance 45 and condenser 46 may be provided. Where two widely separated interference frequencies are concerned each is tackled separately by the aid of filters 43 or the impedances are designed to have the correct values at both frequencies, separate networks being provided for the respective windings.
GB1323239A 1939-05-03 1939-05-03 Improvements in or relating to electrical signalling systems Expired GB528300A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1323239A GB528300A (en) 1939-05-03 1939-05-03 Improvements in or relating to electrical signalling systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1323239A GB528300A (en) 1939-05-03 1939-05-03 Improvements in or relating to electrical signalling systems

Publications (1)

Publication Number Publication Date
GB528300A true GB528300A (en) 1940-10-25

Family

ID=10019239

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1323239A Expired GB528300A (en) 1939-05-03 1939-05-03 Improvements in or relating to electrical signalling systems

Country Status (1)

Country Link
GB (1) GB528300A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2505777A (en) * 1946-04-12 1950-05-02 Samuel W Lichtman Automatic volume control filter circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2505777A (en) * 1946-04-12 1950-05-02 Samuel W Lichtman Automatic volume control filter circuit

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