CH258989A - Arrangement for switching the speech direction in intercom systems for noisy traffic. - Google Patents

Arrangement for switching the speech direction in intercom systems for noisy traffic.

Info

Publication number
CH258989A
CH258989A CH258989DA CH258989A CH 258989 A CH258989 A CH 258989A CH 258989D A CH258989D A CH 258989DA CH 258989 A CH258989 A CH 258989A
Authority
CH
Switzerland
Prior art keywords
switching
arrangement
intercom systems
speech direction
noisy
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellschaft Autophon
Original Assignee
Autophon 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 Autophon Ag filed Critical Autophon Ag
Publication of CH258989A publication Critical patent/CH258989A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/001—Two-way communication systems between a limited number of parties

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
CH258989D 1942-12-04 1942-12-04 Arrangement for switching the speech direction in intercom systems for noisy traffic. CH258989A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH2460475X 1942-12-04

Publications (1)

Publication Number Publication Date
CH258989A true CH258989A (en) 1948-12-31

Family

ID=4569399

Family Applications (1)

Application Number Title Priority Date Filing Date
CH258989D CH258989A (en) 1942-12-04 1942-12-04 Arrangement for switching the speech direction in intercom systems for noisy traffic.

Country Status (2)

Country Link
US (1) US2460475A (en)
CH (1) CH258989A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2577806A (en) * 1945-07-09 1951-12-11 Richard C Lindberg Network for intercommunication system
US2883456A (en) * 1953-04-29 1959-04-21 Int Standard Electric Corp Circuit arrangement for intercommunication systems

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR789510A (en) * 1933-12-30 1935-10-30 Le Telephone Prive Nat Improvements in telephony
US2044305A (en) * 1935-07-01 1936-06-16 Turner Company Communication system
GB508031A (en) * 1937-12-23 1939-06-23 Automatic Telephone & Elect Improvements in or relating to telephone systems
GB522457A (en) * 1938-12-02 1940-06-18 Marcello Creti Improvements in or relating to systems of simultaneous telephony on a number of lines
US2214804A (en) * 1939-07-18 1940-09-17 Bell Telephone Labor Inc Two-way communication system
US2249456A (en) * 1940-03-25 1941-07-15 Webster Electric Co Inc Communication system
US2369351A (en) * 1943-05-01 1945-02-13 Automatic Elect Lab Telephone substation circuit
US2369144A (en) * 1943-05-10 1945-02-13 Automatic Elect Lab Telephone substation circuit

Also Published As

Publication number Publication date
US2460475A (en) 1949-02-01

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