NL183264C - Verbindingsstelsel voor simplex-, duplex- of luidspreekverkeer tussen een aantal toestellen. - Google Patents

Verbindingsstelsel voor simplex-, duplex- of luidspreekverkeer tussen een aantal toestellen.

Info

Publication number: NL183264C
Authority: NL; Netherlands
Prior art keywords: simplex; duplex; speaker; traffic; devices
Prior art date: 1978-08-31

Application number

NL7905213A

Other languages

English (en)

Dutch (nl)

Other versions

NL7905213A (nl

NL183264B (nl

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.)

1978-08-31

Filing date

1979-07-04

Publication date

1988-09-01

1979-07-04 Application filed by Neumann Elektronik Gmbh filed Critical Neumann Elektronik Gmbh

1980-03-04 Publication of NL7905213A publication Critical patent/NL7905213A/nl

1988-04-05 Publication of NL183264B publication Critical patent/NL183264B/xx

1988-09-01 Application granted granted Critical

1988-09-01 Publication of NL183264C publication Critical patent/NL183264C/xx

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 Verbindingsstelsel voor simplex-, duplex- of luidspreekverkeer tussen een aantal toestellen. NL183264C (nl)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE19782837950 DE2837950C2 (de)	1978-08-31	1978-08-31	Vermittlungseinrichtung für eine tastengesteuerte Wechsel-, Gegen- oder Lautsprechanlage
DE2837950		1978-08-31

Publications (3)

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

Family

ID=6048319

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL7905213A NL183264C (nl)	1978-08-31	1979-07-04	Verbindingsstelsel voor simplex-, duplex- of luidspreekverkeer tussen een aantal toestellen.

Country Status (6)

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

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE3000858C2 (de) *	1980-01-11	1986-11-13	Neumann Elektronik GmbH, 4330 Mülheim	Tastengesteuerte Wechsel-, Gegen- oder Lautsprechanlage
DE3214657C2 (de) *	1982-04-21	1985-07-04	ANT Nachrichtentechnik GmbH, 7150 Backnang	Einrichtung für die Sprach- und/oder Datenvermittlung und -übertragung
DE4107593C1 (fr) *	1991-03-09	1992-05-21	Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung Ev, 8000 Muenchen, De
DE4107591C1 (fr) *	1991-03-09	1992-03-05	Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung Ev, 8000 Muenchen, De
DE4236046C1 (de) *	1992-10-24	1993-11-25	Loh Kg Ritto Werk	Sprechanlage mit mehreren Sprechstellen und einer Zentralsteuerung
DE4334906C2 (de) *	1993-10-13	1997-05-07	Neumann Elektronik Gmbh	Einrichtung zur Übertragung von Ruf- und Belegungszustandssignalen von Wechsel- oder Gegen-Lautsprechanlagen mit Linienwahl über eine Zweidraht-Fernleitung

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1437967B2 (de) *	1965-04-28	1970-05-21	Telefunken Patentverwertungsgesellschaft Mbh, 7900 Ulm	Schaltungsanordnung für eine tastengesteuerte Wechselsprechanlage
DE2434321C3 (de) *	1974-07-17	1983-12-08	Neumann Elektronik GmbH, 4330 Mülheim	Schaltungsanordnung für tastengesteuerte Wechselsprech-, Gegensprech- oder Lautsprecheranlagen
DE2741000C2 (de) *	1977-09-12	1982-04-15	Industronic, Industrie-Electronic Gmbh & Co Kg, 6980 Wertheim	Leitungsgebundenes Übertragungssystem für Sprechverkehr und Informationsverarbeitung

1978
- 1978-08-31 DE DE19782837950 patent/DE2837950C2/de not_active Expired
1979
- 1979-07-04 AT AT464879A patent/AT372560B/de not_active IP Right Cessation
- 1979-07-04 NL NL7905213A patent/NL183264C/xx not_active IP Right Cessation
- 1979-08-16 GB GB7928665A patent/GB2029165B/en not_active Expired
- 1979-08-21 CH CH762779A patent/CH645493A5/de not_active IP Right Cessation
- 1979-08-30 BE BE0/196962A patent/BE878527A/fr not_active IP Right Cessation

Also Published As

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

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NL190795B (nl)	1994-03-16	Schakeling voor een hoog-frequent ontvangstsysteem.

Legal Events

Date	Code	Title	Description
1980-03-25	A1A	A request for search or an international-type search has been filed
1982-06-01	BB	A search report has been drawn up
1982-11-01	BC	A request for examination has been filed
1985-01-01	A85	Still pending on 85-01-01
1988-10-17	BK	Erratum	Free format text: CORRECTION TO PAMPHLET
1997-04-01	V1	Lapsed because of non-payment of the annual fee	Effective date: 19970201