FR640689A - Improvements in radio-telehraphic communications - Google Patents

Improvements in radio-telehraphic communications

Info

Publication number
FR640689A
FR640689A FR640689DA FR640689A FR 640689 A FR640689 A FR 640689A FR 640689D A FR640689D A FR 640689DA FR 640689 A FR640689 A FR 640689A
Authority
FR
France
Prior art keywords
telehraphic
communications
radio
telehraphic communications
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.)
Dubilier Condenser Co 1925 Ltd
Original Assignee
Dubilier Condenser Co 1925 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 Dubilier Condenser Co 1925 Ltd filed Critical Dubilier Condenser Co 1925 Ltd
Application granted granted Critical
Publication of FR640689A publication Critical patent/FR640689A/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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2203/00—Indexing scheme relating to line transmission systems
    • H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5429—Applications for powerline communications
    • H04B2203/5441—Wireless systems or telephone
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2203/00—Indexing scheme relating to line transmission systems
    • H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5462—Systems for power line communications
    • H04B2203/5466—Systems for power line communications using three phases conductors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Selective Calling Equipment (AREA)
  • Transmitters (AREA)
  • Mobile Radio Communication Systems (AREA)
FR640689D 1926-09-08 1927-09-08 Improvements in radio-telehraphic communications Expired FR640689A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US134294A US1962611A (en) 1926-09-08 1926-09-08 Radio communication

Publications (1)

Publication Number Publication Date
FR640689A true FR640689A (en) 1928-07-19

Family

ID=22462695

Family Applications (1)

Application Number Title Priority Date Filing Date
FR640689D Expired FR640689A (en) 1926-09-08 1927-09-08 Improvements in radio-telehraphic communications

Country Status (4)

Country Link
US (1) US1962611A (en)
DE (1) DE545278C (en)
FR (1) FR640689A (en)
GB (1) GB277353A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2423836A (en) * 1936-02-11 1947-07-15 Burton G Lake Ultra high frequency communication system
US2921979A (en) * 1957-08-06 1960-01-19 Hafner Theodore Microwave transmission and receiving systems
US3142801A (en) * 1961-09-21 1964-07-28 Siemens Ag Albis Portable call-signal receiver with power saving means
US7312694B2 (en) * 2003-03-14 2007-12-25 Ameren Corporation Capacitive couplers and methods for communicating data over an electrical power delivery system

Also Published As

Publication number Publication date
GB277353A (en) 1928-07-26
DE545278C (en) 1932-02-27
US1962611A (en) 1934-06-12

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