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FR623523A - Improvements to duplex radio communication systems - Google Patents

Improvements to duplex radio communication systems

Info

Publication number
FR623523A
FR623523A FR623523DA FR623523A FR 623523 A FR623523 A FR 623523A FR 623523D A FR623523D A FR 623523DA FR 623523 A FR623523 A FR 623523A
Authority
FR
France
Prior art keywords
radio communication
communication systems
duplex radio
duplex
systems
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.)
Wired Radio Inc
Original Assignee
Wired Radio Inc
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 Wired Radio Inc filed Critical Wired Radio Inc
Application granted granted Critical
Publication of FR623523A publication Critical patent/FR623523A/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)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
FR623523D 1925-07-24 1926-07-23 Improvements to duplex radio communication systems Expired FR623523A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US623523XA 1925-07-24 1925-07-24
US45948A US1591025A (en) 1925-07-24 1925-07-24 Duplex radiotelephone system

Publications (1)

Publication Number Publication Date
FR623523A true FR623523A (en) 1927-06-25

Family

ID=33032488

Family Applications (1)

Application Number Title Priority Date Filing Date
FR623523D Expired FR623523A (en) 1925-07-24 1926-07-23 Improvements to duplex radio communication systems

Country Status (2)

Country Link
US (1) US1591025A (en)
FR (1) FR623523A (en)

Also Published As

Publication number Publication date
US1591025A (en) 1926-07-06

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