Method and a system for establishing a communication channel between a predetermined number of selected devices and a device and a server arranged for use in the system
A method for establishing a communication channel ( 17 ) between a predetermined number of selected devices ( 3;5 ). Each of the devices has its own identity. The establishing of the communication channel is done by a pairing via a server ( 1 ). Said devices have a pairing operational mode and a communication operational mode. The method comprises the steps of: —setting each of the devices in the pairing operational mode, —agreeing on the choice of a pairing signal ( 19 a; 19 b ), —selecting the agreed upon pairing signal ( 19 a ) on each of the devices, which devices transmit their identity and the agreed upon pairing signal ( 19 a ) to the server ( 1 ), —if the server ( 1 ) in a predetermined time interval determines that more than the predetermined number of selected devices have transmitted the agreed upon pairing signal ( 19 a; 19 b ) than repeating the above second and third steps, wherein a next pairing signal is agreed upon, until the server ( 1 ) determines that only the predetermined number of selected devices have transmitted an identical sequence of pairing signals ( 19 a; 19 b ), —establishing the communication channel ( 17 ) between the devices by the server ( 1 ), and —setting each of the devices in the communication operational mode. The achieved communication channel is very secure. A system comprises a server ( 1 ) and a predetermined number of selected devices ( 3;5 ), wherein during use a communication channel ( 17 ) between the first device ( 3 ) and the second device ( 5 ) is established via the server ( 1 ) according to the method of the invention.
1. A method for establishing a communication channel ( 17 ) between a predetermined number of selected devices ( 3 ; 5 ) each having its own identity, by pairing via a server ( 1 ), said devices each having a pairing operational mode and a communication operational mode, wherein the method comprises the steps of:
setting each of the devices in the pairing operational mode,
agreeing on the choice of a pairing signal ( 19 a ; 19 b ),
selecting the agreed upon pairing signal ( 19 a ) on each of the devices, which devices transmit their identity and the agreed upon pairing signal ( 19 a ) to the server ( 1 ),
repeating the above second and third steps, if the server ( 1 ) in a predetermined time interval in a predetermined time interval determines that more than the predetermined number of selected devices have transmitted the agreed upon pairing signal ( 19 a ; 19 b ), wherein a next pairing signal is agreed upon, until the server ( 1 ) determines that only the predetermined number of selected devices have transmitted an identical sequence of pairing signals ( 19 a ; 19 b ),
establishing the communication channel ( 17 ) between the devices by the server ( 1 ), and
setting each of the devices in the communication operational mode.
2. The method for establishing the communication channel ( 17 ) between the predetermined number of selected devices ( 3 ; 5 ) as claimed in claim 1 , wherein the predetermined number of selected devices is two.
3. The method for establishing the communication channel ( 17 ) between the predetermined number of selected devices ( 3 ; 5 ) as claimed in claim 1 , wherein agreeing on the choice of the pairing signal ( 19 a ; 19 b ) is done via a direct communication channel ( 15 ).
4. The method for establishing the communication channel ( 17 ) between the predetermined number of selected devices ( 3 ; 5 ) as claimed in claim 3 , wherein, the direct communication channel ( 15 ) comprises a telephone or an e-mail communication channel.
5. The method for establishing the communication channel ( 17 ) between the predetermined number of selected devices ( 3 ; 5 ) as claimed in claim wherein in the third step, the pairing signal ( 19 a ; 19 b )) selected on the devices ( 3 ; 5 ) is offered by the server ( 1 ).
6. The method for establishing the communication channel ( 17 ) between the predetermined number of selected devices ( 3 ; 5 ) as claimed in claim 1 , wherein the pairing signal ( 19 a ; 19 b ) represents an image.
7. A system comprising a server ( 1 ) and a predetermined number of selected devices ( 3 ; 5 ), wherein during use a communication channel ( 17 ) between the selected devices ( 3 ; 5 ) is established via the server ( 1 ) by the method as claimed in claim 1 .
8. A device ( 3 ; 5 ) arranged for use, as one of the selected devices ( 3 ; 5 ), in the system according to claim 7 .
9. A server (a) arranged for use in the system according to claim 7 .