NL183264C - CONNECTION SYSTEM FOR SIMPLEX, DUPLEX OR SPEAKER TRAFFIC BETWEEN A NUMBER OF DEVICES. - Google Patents

CONNECTION SYSTEM FOR SIMPLEX, DUPLEX OR SPEAKER TRAFFIC BETWEEN A NUMBER OF DEVICES.

Info

Publication number
NL183264C
NL183264C NL7905213A NL7905213A NL183264C NL 183264 C NL183264 C NL 183264C NL 7905213 A NL7905213 A NL 7905213A NL 7905213 A NL7905213 A NL 7905213A NL 183264 C NL183264 C NL 183264C
Authority
NL
Netherlands
Prior art keywords
simplex
duplex
speaker
traffic
devices
Prior art date
Application number
NL7905213A
Other languages
Dutch (nl)
Other versions
NL7905213A (en
NL183264B (en
Original Assignee
Neumann Elektronik Gmbh
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 Neumann Elektronik Gmbh filed Critical Neumann Elektronik Gmbh
Publication of NL7905213A publication Critical patent/NL7905213A/en
Publication of NL183264B publication Critical patent/NL183264B/en
Application granted granted Critical
Publication of NL183264C publication Critical patent/NL183264C/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/002—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems
    • H04M9/005—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems with subscriber controlled access to an exchange line
    • H04M9/007—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems with subscriber controlled access to an exchange line wherein the key telephone sets are star-connected to a central unit by a limited number of lines

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Telephonic Communication Services (AREA)
NL7905213A 1978-08-31 1979-07-04 CONNECTION SYSTEM FOR SIMPLEX, DUPLEX OR SPEAKER TRAFFIC BETWEEN A NUMBER OF DEVICES. NL183264C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19782837950 DE2837950C2 (en) 1978-08-31 1978-08-31 Switching device for a button-controlled exchange, counter or loudspeaker system
DE2837950 1978-08-31

Publications (3)

Publication Number Publication Date
NL7905213A NL7905213A (en) 1980-03-04
NL183264B NL183264B (en) 1988-04-05
NL183264C true NL183264C (en) 1988-09-01

Family

ID=6048319

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7905213A NL183264C (en) 1978-08-31 1979-07-04 CONNECTION SYSTEM FOR SIMPLEX, DUPLEX OR SPEAKER TRAFFIC BETWEEN A NUMBER OF DEVICES.

Country Status (6)

Country Link
AT (1) AT372560B (en)
BE (1) BE878527A (en)
CH (1) CH645493A5 (en)
DE (1) DE2837950C2 (en)
GB (1) GB2029165B (en)
NL (1) NL183264C (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3000858C2 (en) * 1980-01-11 1986-11-13 Neumann Elektronik GmbH, 4330 Mülheim Button-controlled exchange, counter or loudspeaker system
DE3214657C2 (en) * 1982-04-21 1985-07-04 ANT Nachrichtentechnik GmbH, 7150 Backnang Device for voice and / or data switching and transmission
DE4107593C1 (en) * 1991-03-09 1992-05-21 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung Ev, 8000 Muenchen, De
DE4107591C1 (en) * 1991-03-09 1992-03-05 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung Ev, 8000 Muenchen, De
DE4236046C1 (en) * 1992-10-24 1993-11-25 Loh Kg Ritto Werk Intercom system with centralised control - uses duplex amplifiers in connection path between calling and called speech stations with respective amplifier paths for each direction
DE4334906C2 (en) * 1993-10-13 1997-05-07 Neumann Elektronik Gmbh Device for the transmission of call and occupancy status signals from two-way or intercom systems with line selection via a two-wire transmission line

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1437967B2 (en) * 1965-04-28 1970-05-21 Telefunken Patentverwertungsgesellschaft Mbh, 7900 Ulm Circuit arrangement for a button-controlled intercom system
DE2434321C3 (en) * 1974-07-17 1983-12-08 Neumann Elektronik GmbH, 4330 Mülheim Circuit arrangement for button-controlled intercom, intercom or loudspeaker systems
DE2741000C2 (en) * 1977-09-12 1982-04-15 Industronic, Industrie-Electronic Gmbh & Co Kg, 6980 Wertheim Line-bound transmission system for speech communication and information processing

Also Published As

Publication number Publication date
DE2837950B1 (en) 1980-02-28
NL7905213A (en) 1980-03-04
DE2837950C2 (en) 1986-11-13
GB2029165A (en) 1980-03-12
BE878527A (en) 1979-12-17
ATA464879A (en) 1983-02-15
AT372560B (en) 1983-10-25
NL183264B (en) 1988-04-05
GB2029165B (en) 1982-08-25
CH645493A5 (en) 1984-09-28

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Legal Events

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A1A A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
A85 Still pending on 85-01-01
BK Erratum

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V1 Lapsed because of non-payment of the annual fee

Effective date: 19970201