FR64437E - Récepteurs à fréquences vocales - Google Patents

Récepteurs à fréquences vocales

Info

Publication number
FR64437E
FR64437E FR64437DA FR64437E FR 64437 E FR64437 E FR 64437E FR 64437D A FR64437D A FR 64437DA FR 64437 E FR64437 E FR 64437E
Authority
FR
France
Prior art keywords
voice frequency
frequency receivers
receivers
voice
frequency
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
Thomas Frederick St Hargreaves
Hector Thomas Prior
William Francis S Chittleburgh
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 FR64437E publication Critical patent/FR64437E/fr
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
    • H04B1/54—Circuits using the same frequency for two directions of communication
    • H04B1/58—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
FR64437D 1952-01-30 1953-06-27 Récepteurs à fréquences vocales Expired FR64437E (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1070223X 1952-01-30

Publications (1)

Publication Number Publication Date
FR64437E true FR64437E (fr) 1955-11-10

Family

ID=10871890

Family Applications (2)

Application Number Title Priority Date Filing Date
FR1070223D Expired FR1070223A (fr) 1952-01-30 1953-01-30 Récepteurs à fréquences vocales
FR64437D Expired FR64437E (fr) 1952-01-30 1953-06-27 Récepteurs à fréquences vocales

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR1070223D Expired FR1070223A (fr) 1952-01-30 1953-01-30 Récepteurs à fréquences vocales

Country Status (1)

Country Link
FR (2) FR1070223A (fr)

Also Published As

Publication number Publication date
FR1070223A (fr) 1954-07-20

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