FR867829A - Systèmes de signalisation électriques - Google Patents

Systèmes de signalisation électriques

Info

Publication number
FR867829A
FR867829A FR867829DA FR867829A FR 867829 A FR867829 A FR 867829A FR 867829D A FR867829D A FR 867829DA FR 867829 A FR867829 A FR 867829A
Authority
FR
France
Prior art keywords
signaling systems
electrical signaling
electrical
systems
signaling
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)
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.)
Thales SA
Original Assignee
Le Materiel Telephonique Thomson CSF
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 Le Materiel Telephonique Thomson CSF filed Critical Le Materiel Telephonique Thomson CSF
Application granted granted Critical
Publication of FR867829A publication Critical patent/FR867829A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • 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
    • H04B1/54—Circuits using the same frequency for two directions of communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/20—Repeater circuits; Relay circuits
    • H04L25/24—Relay circuits using discharge tubes or semiconductor devices
FR867829D 1939-11-10 1940-11-28 Systèmes de signalisation électriques Expired FR867829A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US303890A US2213105A (en) 1939-11-10 1939-11-10 Radio control system

Publications (1)

Publication Number Publication Date
FR867829A true FR867829A (fr) 1941-11-29

Family

ID=23174136

Family Applications (1)

Application Number Title Priority Date Filing Date
FR867829D Expired FR867829A (fr) 1939-11-10 1940-11-28 Systèmes de signalisation électriques

Country Status (3)

Country Link
US (1) US2213105A (fr)
BE (1) BE440881A (fr)
FR (1) FR867829A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2589158A (en) * 1948-04-02 1952-03-11 Bell Telephone Labor Inc Mobile-radio and wire system

Also Published As

Publication number Publication date
US2213105A (en) 1940-08-27
BE440881A (fr) 1941-04-30

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