EP 1189479 A1 20020320 - Wireless transmission communication system
Title (en)
Wireless transmission communication system
Title (de)
Kommunikationssystem mit drahtloser Übertragung
Title (fr)
Système de communication avec transmission sans fil
Publication
Application
Priority
EP 00610093 A 20000915
Abstract (en)
The invention relates to communication system for infrared transmission of a signal from a non-stationary speaker to a sound reproducing system, the communication system comprising two microphones; at least one signal emitter; a receiver and end transmission equipment, where the microphones form part of a single portable unit suitable for placement around a wearers neck and where the microphones are placed with mutual angle in a fixed position in relation to the unit and at least one signal emitter is provided for the transmission of the signal to a remote signal receiver. The invention further relates to a microphone unit for use in such wireless communication systems. <IMAGE>
IPC 1-7
IPC 8 full level
CPC (source: EP)
H04R 1/08 (2013.01); H04R 1/406 (2013.01)
Citation (search report)
- [E] EP 1043846 A2 20001011 - PHONIC EAR INC [US]
- [XA] US 5563951 A 19961008 - WANG WEIJIA [US], et al
- [X] WO 9807298 A1 19980219 - INTERVAL RESEARCH CORP [US]
- [A] US 5793875 A 19980811 - LEHR MICHAEL A [US], et al
Citation (examination)
- GB 1236773 A 19710623 - AKG AKUSTISCHE KINO GERAETE [AT]
- US 5969838 A 19991019 - PARITSKY ALEXANDER [IL], et al
Designated contracting state (EPC)
CH DE DK FR GB LI
DOCDB simple family (publication)
DOCDB simple family (application)
EP 00610093 A 20000915