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1. (EP0505489) SATELLITE BASED ACKNOWLEDGE-BACK PAGING SYSTEM

Office : European Patent Office
Application Number: 91902502 Application Date: 09.11.1990
Publication Number: 0505489 Publication Date: 30.09.1992
Publication Kind : B1
Prior PCT appl.: Application Number:US1990006477 ; Publication Number: Click to see the data
IPC:
G 08B
H 04Q
H04B 7/185
H 04Q
H04W 88/18
H 04B
G PHYSICS
08
SIGNALLING
B
SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
5
Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
22
using electric transmission; using electromagnetic transmission
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
Q
SELECTING
1
Details of selecting apparatus or arrangements
18
Electrical details
30
Signalling arrangements; Manipulation of signalling currents
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
B
TRANSMISSION
7
Radio transmission systems, i.e. using radiation field
14
Relay systems
15
Active relay systems
185
Space-based or airborne stations
(Deprecated)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
Q
SELECTING
7
Selecting arrangements to which subscribers are connected via radio links or inductive links
06
in which the radio or inductive links are essentially one-way, e.g. selective calling systems
08
Selective calling networks, e.g. wide area paging
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
W
WIRELESS COMMUNICATION NETWORKS
88
Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
18
Service support; Network management devices
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
B
TRANSMISSION
7
Radio transmission systems, i.e. using radiation field
14
Relay systems
15
Active relay systems
185
Space-based or airborne stations
195
Non-synchronous stations
CPC:
H04W 88/185
H04B 7/18567
Applicants: MOTOROLA INC
Inventors: SCHWENDEMAN ROBERT J
KUZNICKI WILLIAM J
Priority Data: 45070789 14.12.1989 US
9006477 09.11.1990 US
Title: (DE) SATELLITENGEBUNDENES PERSONENRUFMELDESYSTEM MIT RÜCKQUITTIERUNG
(EN) SATELLITE BASED ACKNOWLEDGE-BACK PAGING SYSTEM
(FR) SYSTEME PAR SATELLITE D'APPEL UNILATERAL AVEC ACCUSE DE RECEPTION
Abstract: front page image
(EN) A satellite based paging communication system comprises at least one satellite (102) capable of communicating the paging information to at least one terrestrial receiver (110, 116, 126) some of which are capable of transmitting an acknowledge signal (127) so that message reception may be verified and satellite traffic controlled.
(FR) Système par satellite de communications d'appel unilatéral comprenant au moins un satellite (102) capable de fournir l'information d'appel à au moins un récepteur de Terre (110, 116, 126), dont certains peuvent transmettre un signal d'accusé de réception (127), afin de permettre de vérifier la réception du message et de réglementer le trafic par satellite.
Also published as:
CA2071490KR1019920704455AU1991071701DK0505489WO/1991/009473