Title (en)

COMMUNICATION SYSTEM USING A TRANSMITTER AND TRANSCEIVER FOR USE WITH MULTIPLE RECEIVERS

Title (de)

SENDER UND SENDEEMPFÄNGER UMFASSENDES KOMMUNIKATIONSSYSTEM VERWENDBAR MIT MEHREREN EMPFÄNGERN

Title (fr)

SYSTEME DE COMMUNICATION A EMETTEUR ET EMETTEUR-RECEPTEUR UTILISABLE AVEC PLUSIEURS RECEPTEURS

Publication

EP 0872121 A4 20020724 (EN)

Application

EP 97904743 A 19970106

Priority

• US 9700317 W 19970106
• US 58266996 A 19960104

Abstract (en)

[origin: WO9725821A1] A communication system including a transmitter (10) and a transceiver (11) for controlling the operation of multiple receivers (24-30). The transmitter sends data packages as an IR signal and also has a receiver (16) for sensing the transmission of IR packages from a transceiver. The transceiver receives the IR packages from the transmitter and transmits IR packages from the transmitter to any one or more of the multiple receivers. When the transmitter sends a stop signal (15) this is not transmitted or received by the transceiver until the transceiver is a space mode between data packages. This permits for coordinated transmission between the transmitter and transceiver and ensures that signals from the transmitter do not overlap transceiver output signals.

IPC 1-7

H04Q 1/00; H04B 1/20

IPC 8 full level

H04B 10/00 (2013.01); G08C 19/28 (2006.01); H04B 1/20 (2006.01); H04Q 9/00 (2006.01); H04Q 9/02 (2006.01); H04N 5/44 (2011.01)

CPC (source: EP)

G08C 19/28 (2013.01); H04B 1/207 (2013.01); H04B 1/202 (2013.01); H04N 5/44 (2013.01)

Citation (search report)

• [A] DE 3927838 A1 19910228 - THOMSON BRANDT GMBH [DE]
• [A] EP 0530553 A1 19930310 - TELEFUNKEN MICROELECTRON [DE], et al
• See references of WO 9725821A1

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

WO 9725821 A1 19970717; EP 0872121 A1 19981021; EP 0872121 A4 20020724; JP 3068203 B2 20000724; JP H11506890 A 19990615

DOCDB simple family (application)

US 9700317 W 19970106; EP 97904743 A 19970106; JP 52538897 A 19970106