GB352098A - Improvements in signal transmission over submarine cables or the like - Google Patents

Improvements in signal transmission over submarine cables or the like

Info

Publication number
GB352098A
GB352098A GB1130730A GB1130730A GB352098A GB 352098 A GB352098 A GB 352098A GB 1130730 A GB1130730 A GB 1130730A GB 1130730 A GB1130730 A GB 1130730A GB 352098 A GB352098 A GB 352098A
Authority
GB
United Kingdom
Prior art keywords
speech
amplifier
radio
cable
receiver
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
GB1130730A
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.)
SYDNEY HERBERT GROVE
STC PLC
Original Assignee
SYDNEY HERBERT GROVE
Standard Telephone and Cables PLC
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 SYDNEY HERBERT GROVE, Standard Telephone and Cables PLC filed Critical SYDNEY HERBERT GROVE
Priority to GB1130730A priority Critical patent/GB352098A/en
Publication of GB352098A publication Critical patent/GB352098A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Near-Field Transmission Systems (AREA)

Abstract

352,098. Two-way terminal equipment. STANDARD TELEPHONES & CABLES, Ltd. and GROVE, S. H., Columbia House, Aldwych, London. April 9, 1930, No. 11307. [Class 40 (iv).] In a submarine cable system the terminal relays are controlled by energy transmitted by radio. The system illustrated has a normal speech bias from E-W and when speech passes in this direction the relay S3 is operated to short the transmitter T1. When speech originates at W it passes through amplifier A1 and delay network D whilst detector amplifier DA2 operates S1 to change over the outgoing leads and controls the sending of a signal current via radio transmitter RT to the receiver RR. This radio signal, travelling faster than the cable signals, operates S2 before the speech currents arrive, connecting the cable to receiver R2 via amplifier A4. The switching at intermediate repeater stations may be similarly operated.
GB1130730A 1930-04-09 1930-04-09 Improvements in signal transmission over submarine cables or the like Expired GB352098A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1130730A GB352098A (en) 1930-04-09 1930-04-09 Improvements in signal transmission over submarine cables or the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1130730A GB352098A (en) 1930-04-09 1930-04-09 Improvements in signal transmission over submarine cables or the like

Publications (1)

Publication Number Publication Date
GB352098A true GB352098A (en) 1931-07-09

Family

ID=9983839

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1130730A Expired GB352098A (en) 1930-04-09 1930-04-09 Improvements in signal transmission over submarine cables or the like

Country Status (1)

Country Link
GB (1) GB352098A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2907874A (en) * 1955-02-25 1959-10-06 Westinghouse Electric Corp Microwave communication system
US3174100A (en) * 1961-10-03 1965-03-16 Jr Charles B Orr 2-wire-4-wire telephone converter for use on unstable 4-wire circuits

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2907874A (en) * 1955-02-25 1959-10-06 Westinghouse Electric Corp Microwave communication system
US3174100A (en) * 1961-10-03 1965-03-16 Jr Charles B Orr 2-wire-4-wire telephone converter for use on unstable 4-wire circuits

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