CA2195941A1 - Systeme de distribution telephonique numerique et multinodal - Google Patents

Systeme de distribution telephonique numerique et multinodal

Info

Publication number
CA2195941A1
CA2195941A1 CA 2195941 CA2195941A CA2195941A1 CA 2195941 A1 CA2195941 A1 CA 2195941A1 CA 2195941 CA2195941 CA 2195941 CA 2195941 A CA2195941 A CA 2195941A CA 2195941 A1 CA2195941 A1 CA 2195941A1
Authority
CA
Canada
Prior art keywords
telephone
telephony
channel
data
control units
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.)
Abandoned
Application number
CA 2195941
Other languages
English (en)
Inventor
Fariborz Tavakkolian
Cameron Scott Elliott
Robert K. Lee
Xia Hao Xing
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.)
New Cingular Wireless Services Inc
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2195941A1 publication Critical patent/CA2195941A1/fr
Abandoned legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
    • H04Q11/0428—Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/18502—Airborne stations
    • H04B7/18506—Communications with or from aircraft, i.e. aeronautical mobile service
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/02—Arrangements for interconnection not involving centralised switching involving a common line for all parties
    • H04M9/022—Multiplex systems
    • H04M9/025—Time division multiplex systems, e.g. loop systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/58—Arrangements providing connection between main exchange and sub-exchange or satellite
    • H04Q3/62—Arrangements providing connection between main exchange and sub-exchange or satellite for connecting to private branch exchanges
    • H04Q3/625—Arrangements in the private branch exchange
    • H04Q3/627—Details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13034—A/D conversion, code compression/expansion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/1308—Power supply
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13141—Hunting for free outlet, circuit or channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13176—Common channel signaling, CCS7
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13204—Protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13205—Primary rate access, PRI
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13209—ISDN
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/1322—PBX
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13333—Earth satellites

Abstract

Un système de distribution de cabine (CDS) permet de disposer des interfaces nécessaires entre chacun des appareils téléphoniques utilisés par les passagers à bord d'un avion et un ensemble téléphonique de cabine (CTU). Le CTU est un commutateur téléphonique intelligent qui pilote et achemine les appels téléphoniques entre les passagers et une pluralité de réseaux de télécommunications. Une interface à débit primaire, telle qu'une interface E1 de CEPT, s'utilise afin de raccorder la pluralité d'appareils téléphoniques au CTU selon une configuration basée sur une boucle. L'interface E1 permet de disposer de trente-deux canaux de communication. De préférence, un protocole d'accès à la liaison par l'intermédiaire du canal D s'utilise afin de commander les communications sur l'interface E1. Ce protocole LAP-D permet d'utiliser un premier canal, sur les trente-deux canaux disponibles sur l'interface E1, afin de verrouiller la trame des messages de communication et un seizième canal, désigné canal D, s'utilise en tant que canal de communication de données. Les trente canaux restants, désignés canaux B, sont disponibles pour effectuer le raccordement d'appels téléphoniques, ce qui représente un avantage. Les informations de données transférées sur le canal D sont interrompues par chaque groupe téléphonique pendant un délai de seize blocs, afin de déterminer si les données sont destinées à ce groupe. Les informations vocales transmises par l'intermédiaire des canaux B ne sont interrompues que pour un bloc par chaque groupe, afin de déterminer si les données sont destinées à ce groupe. Le fait d'empêcher les groupes de téléphones d'interrompre les transmissions sur le canal B pendant une durée prolongée permet d'éliminer les retards involontaires et non indispensables de la communication vocale.
CA 2195941 1994-07-26 1995-07-21 Systeme de distribution telephonique numerique et multinodal Abandoned CA2195941A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US28078294A 1994-07-26 1994-07-26
US280,782 1994-07-26
US37073295A 1995-01-10 1995-01-10
US370,732 1995-01-10

Publications (1)

Publication Number Publication Date
CA2195941A1 true CA2195941A1 (fr) 1996-02-08

Family

ID=26960535

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2195941 Abandoned CA2195941A1 (fr) 1994-07-26 1995-07-21 Systeme de distribution telephonique numerique et multinodal

Country Status (4)

Country Link
EP (1) EP0772951A1 (fr)
JP (1) JPH10503339A (fr)
CA (1) CA2195941A1 (fr)
WO (1) WO1996003846A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6760778B1 (en) 1998-09-09 2004-07-06 At&T Wireless Services, Inc. System and method for communication between airborne and ground-based entities
US7177939B2 (en) 1999-05-14 2007-02-13 Cingular Wireless Ii, Llc Aircraft data communications services for users
US7020708B2 (en) * 1999-05-14 2006-03-28 Cingular Wireless Ii, Llc Aircraft data services
US7548725B1 (en) * 2002-09-23 2009-06-16 Rockwell Collins, Inc. Null bearer system and method of connecting E1 data to the public switched telephone network
US7099665B2 (en) 2003-01-27 2006-08-29 The Boeing Company Apparatus and method for providing satellite link status notification
US7978603B2 (en) 2006-10-10 2011-07-12 Qualcomm Incorporated Traffic optimization in a heterogeneous wireless cabin network

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU535333B2 (en) * 1979-07-25 1984-03-15 L M Ericsson Pty. Ltd. Loop sharing in digital systems
FR2520570A1 (fr) * 1982-01-25 1983-07-29 Labo Cent Telecommunicat Reseau de communication local en boucle vehiculant a la fois des donnees et des signaux telephoniques de parole sous forme numerique

Also Published As

Publication number Publication date
WO1996003846A1 (fr) 1996-02-08
EP0772951A1 (fr) 1997-05-14
JPH10503339A (ja) 1998-03-24

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Legal Events

Date Code Title Description
EEER Examination request
FZDC Correction of dead application (reinstatement)
FZDE Dead