FR50085E - Installation for telephone networks in which the transmission of messages by carrier frequency takes place, in particular for installation of radio transmission by wire - Google Patents

Installation for telephone networks in which the transmission of messages by carrier frequency takes place, in particular for installation of radio transmission by wire

Info

Publication number
FR50085E
FR50085E FR50085DA FR50085E FR 50085 E FR50085 E FR 50085E FR 50085D A FR50085D A FR 50085DA FR 50085 E FR50085 E FR 50085E
Authority
FR
France
Prior art keywords
installation
transmission
messages
wire
takes place
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.)
Alcatel Lucent Deutschland AG
C Lorenz AG
Original Assignee
Standard Elektrik Lorenz AG
C Lorenz AG
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 Standard Elektrik Lorenz AG, C Lorenz AG filed Critical Standard Elektrik Lorenz AG
Application granted granted Critical
Publication of FR50085E publication Critical patent/FR50085E/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/65—Arrangements characterised by transmission systems for broadcast
    • H04H20/76—Wired systems
    • H04H20/77—Wired systems using carrier waves
    • H04H20/81—Wired systems using carrier waves combined with telephone network over which the broadcast is continuously available
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D17/00—Parachutes
    • B64D17/40—Packs
    • B64D17/52—Opening, e.g. manual
    • B64D17/54—Opening, e.g. manual automatic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/02—Constructional details
    • H04Q1/14—Distribution frames

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Signal Processing (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Filters And Equalizers (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephonic Communication Services (AREA)
FR50085D 1937-08-05 1938-12-15 Installation for telephone networks in which the transmission of messages by carrier frequency takes place, in particular for installation of radio transmission by wire Expired FR50085E (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEL93022A DE722609C (en) 1937-08-05 1937-08-05 Arrangement for telephone networks, in which, in addition to the low-frequency transmission, there is also carrier-frequency communication, especially for wireless systems
DEL93947A DE756081C (en) 1937-08-05 1938-01-05 Arrangement for telephone networks in which, in addition to the low-frequency communication, there is also a carrier-frequency message transmission, in particular a wire radio system

Publications (1)

Publication Number Publication Date
FR50085E true FR50085E (en) 1939-11-20

Family

ID=91759061

Family Applications (2)

Application Number Title Priority Date Filing Date
FR841645D Expired FR841645A (en) 1937-08-05 1938-08-02 Installation for telephone networks in which the transmission of messages by carrier frequency takes place, in particular for radio transmission installations by wire
FR50085D Expired FR50085E (en) 1937-08-05 1938-12-15 Installation for telephone networks in which the transmission of messages by carrier frequency takes place, in particular for installation of radio transmission by wire

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR841645D Expired FR841645A (en) 1937-08-05 1938-08-02 Installation for telephone networks in which the transmission of messages by carrier frequency takes place, in particular for radio transmission installations by wire

Country Status (7)

Country Link
US (2) US2235058A (en)
BE (1) BE431606A (en)
CH (1) CH205372A (en)
DE (2) DE722609C (en)
DK (1) DK59606C (en)
FR (2) FR841645A (en)
NL (1) NL51936C (en)

Also Published As

Publication number Publication date
NL51936C (en) 1942-02-16
DK59606C (en) 1942-03-30
BE431606A (en) 1939-01-31
DE756081C (en) 1953-09-07
US2235058A (en) 1941-03-18
DE722609C (en) 1942-07-13
US2212256A (en) 1940-08-20
CH205372A (en) 1939-06-15
FR841645A (en) 1939-05-24

Similar Documents

Publication Publication Date Title
FR802982A (en) Non-inertia transformer with accumulation effect, especially for communication transmission
FR50085E (en) Installation for telephone networks in which the transmission of messages by carrier frequency takes place, in particular for installation of radio transmission by wire
FR732653A (en) Reel refinements, especially loudspeakers
FR839277A (en) Advanced dispatcher intended for telephone networks for transmission of messages by carrier frequency, in particular for radio transmission by wire
FR829462A (en) Device for the transmission of messages by means of high-frequency carrier currents, preferably by conductors
FR844134A (en) Method for the transmission of switching criteria in telecommunications installations, in particular in teleprinting
FR868657A (en) Central office filter for the transmission of news by carrier frequency over telephone lines
FR822907A (en) Selector for telecommunications installations, in particular for telephone installations
CH236317A (en) Repeater circuit for telecommunications installations.
FR805382A (en) Cable splitter, especially for television cable
FR778832A (en) Telephone cable for four-wire operation, in particular at carrier frequency
FR904177A (en) Free telecommunications conductor, in particular for the transmission of messages by carrier frequency
AU104508B2 (en) High frequency signalling systems, particularly multiplex high frequency signalling systems
FR677471A (en) Installation for wireless transmission of news, especially duplex
CA224506A (en) High frequency carrier signalling system
FR847544A (en) Gear shifting, especially for automobiles
FR49608E (en) Dial for wireless telephone receiver
FR757162A (en) Communication counter for telephone sets
FR859085A (en) Types wheel for telegraph receivers
FR615744A (en) Box for wireless telephony reception station, forming loudspeaker
FR886015A (en) Carrier frequency system, in particular for wireless transmission of frequency modulated broadcasts
AU887127A (en) Improvements relating to electric signalling, applicable especially to automatic telephone systems
FR772670A (en) Installation for receiving telephone calls via loudspeaker
CA244606A (en) Carrier radio telephone system
FR833125A (en) Installation for high frequency transmissions, in particular by wire