FR677471A - Installation for wireless transmission of news, especially duplex - Google Patents

Installation for wireless transmission of news, especially duplex

Info

Publication number
FR677471A
FR677471A FR677471DA FR677471A FR 677471 A FR677471 A FR 677471A FR 677471D A FR677471D A FR 677471DA FR 677471 A FR677471 A FR 677471A
Authority
FR
France
Prior art keywords
news
installation
wireless transmission
duplex
especially duplex
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
Priority claimed from DEL72290D external-priority patent/DE526101C/en
Application filed by Standard Elektrik Lorenz AG, C Lorenz AG filed Critical Standard Elektrik Lorenz AG
Application granted granted Critical
Publication of FR677471A publication Critical patent/FR677471A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/50—Circuits using different frequencies for the two directions of communication

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transceivers (AREA)
FR677471D 1928-07-03 1929-06-26 Installation for wireless transmission of news, especially duplex Expired FR677471A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE314869X 1928-07-03
DE677471X 1928-07-03
DEL72290D DE526101C (en) 1928-07-03 1928-07-04 Device for the transmission of wireless messages in two-way communication

Publications (1)

Publication Number Publication Date
FR677471A true FR677471A (en) 1930-03-11

Family

ID=33032801

Family Applications (1)

Application Number Title Priority Date Filing Date
FR677471D Expired FR677471A (en) 1928-07-03 1929-06-26 Installation for wireless transmission of news, especially duplex

Country Status (2)

Country Link
FR (1) FR677471A (en)
GB (1) GB314869A (en)

Also Published As

Publication number Publication date
GB314869A (en) 1930-09-29

Similar Documents

Publication Publication Date Title
FR677471A (en) Installation for wireless transmission of news, especially duplex
FR673992A (en) Transmission system for telephone communications
FR676368A (en) Installation for the simultaneous propagation of broadcast news
FR738774A (en) Method for wireless transmission of news
FR625400A (en) Mineral detector for wireless telegraphy receiver
FR615020A (en) Protector for wireless telegraph lamps
FR695826A (en) Chemographic receiver for telephotography
FR637174A (en) Frames for directed radio transmission and reception
FR808475A (en) Transmitting station for wireless telegraphy or telephony
CH131699A (en) Radio transmission installation.
FR644390A (en) Wireless telephony receiver station
FR656504A (en) Antenna for wireless telegraphy
ES89322A1 (en) Installation for the reception of news by wireless telegraphy.
FR615744A (en) Box for wireless telephony reception station, forming loudspeaker
FR692136A (en) Transmission band reducer for television, telecinematography, telephotography, radio and other applications
ES109620A1 (en) Improvements in antenna networks for the transmission of wireless telegraphy signals.
FR644616A (en) Connection arrangement for transmitting news over telephone lines
FR674503A (en) Receiver system, especially for short waves
FR563386A (en) Acoustics on receiver for wireless telegraphy
FR807590A (en) Conductor for mobile remote transmission installations
ES115719A1 (en) Telephone transmission systems.
FR590844A (en) Receiver station for wireless telephony
FR672789A (en) Method for the interference-free transmission of telegraph signs
FR564078A (en) Receiver station for wireless telegraphy or telephony
CA292879A (en) High speed wireless telegraph reception