FR699869A - Transmission system for deeply submerged telephone cables - Google Patents

Transmission system for deeply submerged telephone cables

Info

Publication number
FR699869A
FR699869A FR699869DA FR699869A FR 699869 A FR699869 A FR 699869A FR 699869D A FR699869D A FR 699869DA FR 699869 A FR699869 A FR 699869A
Authority
FR
France
Prior art keywords
transmission system
telephone cables
deeply submerged
deeply
submerged
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
Other languages
French (fr)
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.)
Electrical Research Products Inc
Original Assignee
Electrical Research Products Inc
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 Electrical Research Products Inc filed Critical Electrical Research Products Inc
Application granted granted Critical
Publication of FR699869A publication Critical patent/FR699869A/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)
  • Emergency Protection Circuit Devices (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Amplifiers (AREA)
FR699869D 1929-07-29 1930-07-28 Transmission system for deeply submerged telephone cables Expired FR699869A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US382011A US1984058A (en) 1929-07-29 1929-07-29 Signaling system adopted for deep sea telephone cables

Publications (1)

Publication Number Publication Date
FR699869A true FR699869A (en) 1931-02-20

Family

ID=9780180

Family Applications (1)

Application Number Title Priority Date Filing Date
FR699869D Expired FR699869A (en) 1929-07-29 1930-07-28 Transmission system for deeply submerged telephone cables

Country Status (3)

Country Link
US (1) US1984058A (en)
FR (1) FR699869A (en)
GB (2) GB339270A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3075153A (en) * 1958-08-18 1963-01-22 Gen Dynamics Corp Redundant amplifier

Also Published As

Publication number Publication date
GB339270A (en) 1930-12-03
US1984058A (en) 1934-12-11
GB339288A (en) 1930-12-03

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