EP 0151105 A4 19850902 - MESSAGE COMMUNICATION SYSTEM WITH MESSAGE STORAGE.
Title (en)
MESSAGE COMMUNICATION SYSTEM WITH MESSAGE STORAGE.
Title (de)
NACHRICHTENÜBERTRAGUNGSSYSTEM MIT SPEICHER.
Title (fr)
SYSTEME DE COMMUNICATION DE MESSAGES AVEC STOCKAGE DES MESSAGES.
Publication
Application
Priority
US 8300711 W 19830506
Abstract (en)
[origin: WO8404636A1] A transmission system (10) develops a binary encoded data train having a message (30) and a header (21) preceding the message. The data train is applied to a carrier frequency (15) to modulate the carrier using FSK techniques. The header (21) includes synch signals (22), one or more address signals (25), a message length signal (28) and control signals (24) separating the above signals. One or more personal receivers (11) receive the message if responsive to one of the address signals in the header. An address signal (25) may addres a unique personal receiver, a selected group of or all such personal receivers (11). Each receiver (11) is sequentially activated and deactivated, being activated to detect a synch signal (22). If synch signals (22) are detected, the receiver (11) remains activated to determine if an address signal (25) identifies such receiver to receive the message. A received message (30) is stored digitally and may be selectively displayed in alphanumeric characters (13) when convenient for the recipient.
IPC 1-7
IPC 8 full level
H04W 84/02 (2009.01); G08B 5/22 (2006.01); H04L 27/10 (2006.01)
CPC (source: EP)
G08B 5/227 (2013.01); H04L 27/10 (2013.01)
Citation (search report)
- [A] GB 2068616 A 19810812 - NIRA INT BV
- [A] GB 2101779 A 19830119 - NIPPON ELECTRIC CO [JP]
- See references of WO 8404636A1
Designated contracting state (EPC)
BE CH DE FR GB LI NL SE
DOCDB simple family (publication)
WO 8404636 A1 19841122; EP 0151105 A1 19850814; EP 0151105 A4 19850902; JP S60501585 A 19850919
DOCDB simple family (application)
US 8300711 W 19830506; EP 83902026 A 19830506; JP 50198683 A 19830506