FR1119875A - Système de téléphonie à courants porteurs - Google Patents

Système de téléphonie à courants porteurs

Info

Publication number
FR1119875A
FR1119875A FR1119875DA FR1119875A FR 1119875 A FR1119875 A FR 1119875A FR 1119875D A FR1119875D A FR 1119875DA FR 1119875 A FR1119875 A FR 1119875A
Authority
FR
France
Prior art keywords
powerline
telephony system
telephony
powerline telephony
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
English (en)
Inventor
William C Dillon
Clarence Herman Kehm
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 FR1119875A publication Critical patent/FR1119875A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M7/00—Arrangements for interconnection between switching centres
    • H04M7/16—Arrangements for interconnection between switching centres in systems employing carrier frequencies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/44—Arrangements for feeding power to a repeater along the transmission line
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/18—Frequency-division multiplex systems in which all the carriers are amplitude-modulated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q5/00—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange
    • H04Q5/02—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange with direct connection for all subscribers, i.e. party-line systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q5/00—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange
    • H04Q5/02—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange with direct connection for all subscribers, i.e. party-line systems
    • H04Q5/08—Signalling by continuous ac

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
FR1119875D 1954-02-12 1955-02-11 Système de téléphonie à courants porteurs Expired FR1119875A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US40988854A 1954-02-12 1954-02-12
US846040A US3086171A (en) 1954-02-12 1959-10-12 Carrier wave telephony

Publications (1)

Publication Number Publication Date
FR1119875A true FR1119875A (fr) 1956-06-26

Family

ID=27020796

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1119875D Expired FR1119875A (fr) 1954-02-12 1955-02-11 Système de téléphonie à courants porteurs

Country Status (3)

Country Link
US (1) US3086171A (fr)
CH (1) CH345670A (fr)
FR (1) FR1119875A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2755619C2 (de) * 1977-12-14 1979-09-27 Danfoss A/S, Nordborg (Daenemark) Sendeempfangsweiche

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2102138A (en) * 1936-02-21 1937-12-14 Bell Telephone Labor Inc Transmission system
US2214130A (en) * 1939-03-03 1940-09-10 Bell Telephone Labor Inc Measurement of phase change and envelope delay of a transmission line
US2273719A (en) * 1940-10-02 1942-02-17 Bell Telephone Labor Inc Television signaling system
US2379744A (en) * 1942-03-31 1945-07-03 Bell Telephone Labor Inc Electric circuit arrangement employing delay networks
BE473802A (fr) * 1946-08-20
US2490833A (en) * 1947-04-26 1949-12-13 Fed Telecomm Labs Inc All electronic line finder and selector system
US2604544A (en) * 1949-12-30 1952-07-22 W C Dillon & Company Inc Carrier telephone system with audio-frequency signaling

Also Published As

Publication number Publication date
US3086171A (en) 1963-04-16
CH345670A (de) 1960-04-15

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