EP 1226732 A1 20020731 - METHOD AND APPARATUS FOR TRANSMISSION RESTRICTION OF PORTABLE RADIO DEVICES
Title (en)
METHOD AND APPARATUS FOR TRANSMISSION RESTRICTION OF PORTABLE RADIO DEVICES
Title (de)
VERFAHREN UND VORRICHTUNG ZUR BESCHRÄNKUNG DER SENDUNGEN VON TRAGBAREN FUNKGERÄTEN
Title (fr)
PROCEDE ET APPAREIL DE LIMITATION D'EMISSION DE DISPOSITIFS RADIO PORTATIFS
Publication
Application
Priority
- GB 0004115 W 20001025
- GB 9925360 A 19991026
Abstract (en)
[origin: GB2355889A] Many types of electronic equipment emit radio frequency signals and environments exist where the transmission of radio signals may be hazardous, unwelcome or should be restricted in a particular way. These environments include schools, hospitals, theatres, cinemas, conference centres and offices. The presence of such electronic equipment (1,5) is detected and a controlling device (4,5,6,16, 21) instructs the equipment to suppress radio transmission. In one embodiment, the means for detecting the presence of the device comprises a tag-detecting means for detecting the presence of a tag attached to the device.
IPC 1-7
IPC 8 full level
H04W 48/04 (2009.01)
CPC (source: EP)
H04W 48/04 (2013.01)
Citation (search report)
See references of WO 0131960A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
GB 2355889 A 20010502; GB 9925360 D0 19991229; EP 1226732 A1 20020731; WO 0131960 A1 20010503
DOCDB simple family (application)
GB 9925360 A 19991026; EP 00971583 A 20001025; GB 0004115 W 20001025