FR994735A - Modulators with rectifiers, in particular for powerline telegraph systems - Google Patents

Modulators with rectifiers, in particular for powerline telegraph systems

Info

Publication number
FR994735A
FR994735A FR994735DA FR994735A FR 994735 A FR994735 A FR 994735A FR 994735D A FR994735D A FR 994735DA FR 994735 A FR994735 A FR 994735A
Authority
FR
France
Prior art keywords
powerline
rectifiers
modulators
telegraph systems
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
Victor John Terry
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 FR994735A publication Critical patent/FR994735A/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
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/20—Modulator circuits; Transmitter circuits
    • H04L27/2032—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner
    • H04L27/2035—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using a single or unspecified number of carriers
FR994735D 1948-09-10 1949-09-07 Modulators with rectifiers, in particular for powerline telegraph systems Expired FR994735A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR285952X 1948-09-10

Publications (1)

Publication Number Publication Date
FR994735A true FR994735A (en) 1951-11-21

Family

ID=8887264

Family Applications (1)

Application Number Title Priority Date Filing Date
FR994735D Expired FR994735A (en) 1948-09-10 1949-09-07 Modulators with rectifiers, in particular for powerline telegraph systems

Country Status (3)

Country Link
CH (1) CH285952A (en)
FR (1) FR994735A (en)
GB (1) GB650015A (en)

Also Published As

Publication number Publication date
CH285952A (en) 1952-09-30
GB650015A (en) 1951-02-07

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