CONTROL DEVICE FOR SHIELDING A ROOM

摘要

#CMT# #/CMT# A control device (100) comprises a receiver (104) that receives the mobile radio signal e.g. global System for Mobile communications (GSM) signal transmitted by transmitter (106). An interference device (105) determines an interference signal from the received mobile radio signal, so that the power of the interference signal is adjusted to receive the mobile radio signal within a room (102). #CMT# : #/CMT# Independent claims are included for the following: (1) room shielding system; and (2) shielding room method. #CMT#USE : #/CMT# Control device for shielding signals of mobile radio system or mobile phone system used in aircraft (all claimed). #CMT#ADVANTAGE : #/CMT# Usage of mobile phones, personal digital assistant (PDA), user equipment, subscriber terminal and other portable electronic devices that are adapted for communication with corresponding base station during flight of aircraft can be achieved. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows the block diagram of the control device. 100 : Control device 102 : Room 103,107 : Antennae 104 : Receiver 105 : Interference device 106 : Transmitter #CMT#INDUSTRIAL STANDARDS : #/CMT# The mobile radio signal is selected from UMTS signal and IS 95 A-signal.