US Patent 10091141 Method and device for providing communication between multi-devices

A method of providing communication between a plurality of devices of a user without a dedicated server and a device capable of communicating with other devices by using the method are disclosed. The method includes generating a message to be sent to a second device and storing a channel file including message data in a predetermined space within a cloud server, which are performed by a first device, and accessing the cloud server and reading a channel file stored in a predetermined place within the cloud server, which are performed by the second device.