NL7603776A - Telefoonstelsel en aansluitingen met multipele kanalen. - Google Patents
Telefoonstelsel en aansluitingen met multipele kanalen.Info
- Publication number
- NL7603776A NL7603776A NL7603776A NL7603776A NL7603776A NL 7603776 A NL7603776 A NL 7603776A NL 7603776 A NL7603776 A NL 7603776A NL 7603776 A NL7603776 A NL 7603776A NL 7603776 A NL7603776 A NL 7603776A
- Authority
- NL
- Netherlands
- Prior art keywords
- connections
- telephone system
- multiple channels
- channels
- telephone
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/02—Selecting arrangements for multiplex systems for frequency-division multiplexing
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
- Selective Calling Equipment (AREA)
- Radio Relay Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7511311A FR2307411A1 (fr) | 1975-04-11 | 1975-04-11 | Poste telephonique a generateur de porteurs programmable et systeme telephonique utilisant un tel poste |
Publications (1)
Publication Number | Publication Date |
---|---|
NL7603776A true NL7603776A (nl) | 1976-10-13 |
Family
ID=9153793
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL7603776A NL7603776A (nl) | 1975-04-11 | 1976-04-09 | Telefoonstelsel en aansluitingen met multipele kanalen. |
Country Status (7)
Country | Link |
---|---|
US (1) | US4031327A (nl) |
JP (1) | JPS51126702A (nl) |
BE (1) | BE840566A (nl) |
DE (1) | DE2615619A1 (nl) |
FR (1) | FR2307411A1 (nl) |
GB (1) | GB1499232A (nl) |
NL (1) | NL7603776A (nl) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2659664C2 (de) * | 1976-12-30 | 1979-04-05 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Nachrichtenübertragungsanordnung zur Verbindung mehrerer Teilnehmer mit einer zentralen Vermittlungsstelle |
BR8006228A (pt) * | 1979-01-29 | 1980-12-30 | Anaconda Co | Sistema de transmissao,processo de multiplexacao de portadora em multiplos canais de comunicacao sobre um unico meio de comunicacao processo de filtragem de receptor,processo de construcao de sistema de transmissao de portadora multiplexada em multiplos canais,filtro receptor,e sistema de transmissao telefonica de portadora multiplexada |
US4339816A (en) * | 1980-05-29 | 1982-07-13 | International Telephone And Telegraph Corporation | Conferencing apparatus and methods for a frequency division multiplex communications system |
USRE32327E (en) * | 1980-07-07 | 1987-01-06 | Sytek, Inc. | Multiple channel data communication system |
US4365331A (en) * | 1980-07-07 | 1982-12-21 | Sytek Corporation | Multiple channel data communication system |
US4530084A (en) * | 1981-10-08 | 1985-07-16 | Heinrich Hertz Institut Fuer Nachrichten Technik | Communications network with optical channels |
US4742576A (en) * | 1985-12-23 | 1988-05-03 | Polaroid Corporation | Optical communication system employing coherent detection and method |
US4847888A (en) * | 1988-02-16 | 1989-07-11 | Gulton Industries, Inc., Femco Division | Field telephone system |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3809815A (en) * | 1972-05-04 | 1974-05-07 | Litton Systems Inc | Communication system utilizing frequency division multiplexing to link a plurality of stations each containing a switchable synthesizer |
US3864521A (en) * | 1973-10-25 | 1975-02-04 | Rockwell International Corp | Frequency division multiplex telephone system |
-
1975
- 1975-04-11 FR FR7511311A patent/FR2307411A1/fr active Granted
-
1976
- 1976-04-06 US US05/674,676 patent/US4031327A/en not_active Expired - Lifetime
- 1976-04-08 GB GB14440/76A patent/GB1499232A/en not_active Expired
- 1976-04-09 DE DE19762615619 patent/DE2615619A1/de active Pending
- 1976-04-09 BE BE165995A patent/BE840566A/xx unknown
- 1976-04-09 NL NL7603776A patent/NL7603776A/nl not_active Application Discontinuation
- 1976-04-12 JP JP51041183A patent/JPS51126702A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
DE2615619A1 (de) | 1976-10-21 |
BE840566A (fr) | 1976-10-11 |
FR2307411B1 (nl) | 1978-10-06 |
US4031327A (en) | 1977-06-21 |
FR2307411A1 (fr) | 1976-11-05 |
GB1499232A (en) | 1978-01-25 |
JPS51126702A (en) | 1976-11-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
BV | The patent application has lapsed | ||
BV | The patent application has lapsed |