FR972214A - Powerline telegraph systems - Google Patents

Powerline telegraph systems

Info

Publication number
FR972214A
FR972214A FR972214DA FR972214A FR 972214 A FR972214 A FR 972214A FR 972214D A FR972214D A FR 972214DA FR 972214 A FR972214 A FR 972214A
Authority
FR
France
Prior art keywords
powerline
telegraph systems
telegraph
systems
powerline telegraph
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)
Inventor
Thomas Frederick St Hargreaves
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of FR972214A publication Critical patent/FR972214A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H04L27/14—Demodulator circuits; Receiver circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H04L27/14—Demodulator circuits; Receiver circuits
    • H04L27/142—Compensating direct current components occurring during the demodulation and which are caused by mistuning

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Synchronous Machinery (AREA)
FR972214D 1947-09-23 1948-09-23 Powerline telegraph systems Expired FR972214A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2581747A GB637473A (en) 1947-09-23 1947-09-23 Improvements in and relating to carrier telegraph systems

Publications (1)

Publication Number Publication Date
FR972214A true FR972214A (en) 1951-01-26

Family

ID=10233799

Family Applications (1)

Application Number Title Priority Date Filing Date
FR972214D Expired FR972214A (en) 1947-09-23 1948-09-23 Powerline telegraph systems

Country Status (2)

Country Link
FR (1) FR972214A (en)
GB (1) GB637473A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2701277A (en) * 1950-10-06 1955-02-01 Int Standard Electric Corp Electronic telegraph relay circuits

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2701277A (en) * 1950-10-06 1955-02-01 Int Standard Electric Corp Electronic telegraph relay circuits

Also Published As

Publication number Publication date
GB637473A (en) 1950-05-17

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