Abstract: A method of establishing a paid connection between multi-platforms, where a transmitting end application is installed in a transmitting end apparatus of a sharing source and a receiving end application is installed in a receiving end apparatus of a sharing target. When establishing a connection, the transmitting end application/receiving end application confirms whether a unique ID of the receiving end apparatus/transmitting end apparatus exists in an exception list, and confirms whether the receiving end application/transmitting end apparatus makes payment based on an operating system used by the transmitting end apparatus/receiving end application, in order to determine establishing a limited or an unlimited connection between the transmitting end apparatus and the receiving end apparatus.

Abstract: A method of establishing a paid connection using a screen mirroring application between multi-platforms, where a transmitting end application is installed in a transmitting end apparatus of a sharing source and a receiving end application is installed in a receiving end apparatus of a sharing target. When establishing a connection, the transmitting end application confirms if an unique ID of the receiving end apparatus exists in an exception list, and if the receiving end application makes payment based on an operating system used by the transmitting end apparatus in order to determine establishing a limited or an unlimited connection between the transmitting end apparatus and the receiving end apparatus. Thus, the method assures that either the transmitting end application or the receiving end application is a paid version, a user complies with an application license agreement by using the exception list and the right of application developers is protected.

Abstract: A system for projecting a displayed image of an electronic device through networking, applied to a conference room having at least one Wi-Fi AP, includes at least one electronic device, at least one USB flash drive and a receiving module. The electronic device further has a screen, a wireless network module and an identity. The USB flash drive is to store a pairing information and a network projection software. The receiving module further has an IP address. When the USB flash drive is connected with the electronic device, the electronic device captures the pairing information and uses the wireless network module to couple the at least one Wi-Fi AP, the electronic device further uses the pairing information to login the IP address of the receiving module, and then the electronic device uses the network projection software to output the displayed image to the receiving module.

Abstract: A method of establishing a paid connection using a screen mirroring application between multi-platforms is disclosed. A transmitting end application is installed in a transmitting end apparatus of a sharing source. A receiving end application is installed in a receiving end apparatus of a sharing target. If the transmitting end application is a paid version, an unlimited connection is established for performing screen mirroring between the transmitting end apparatus and any receiving end apparatus. If the transmitting end application is a free version, the method further confirms if the receiving end application is a paid version for deciding whether a limited connection or an unlimited connection should be established. Thus, it is assured that either the transmitting end application or the receiving end application is a paid version, the interests of application developers are protected and users are free from paying twice for establishing one connection.

Abstract: A method of establishing a charged connection using a screen sharing application between multi-platforms is disclosed. A transmitting end application is installed in a transmitting end apparatus of a sharing source. A receiving end application is installed in a receiving end apparatus of a sharing target. If the transmitting end application is a charged version, an unlimited connection is established for performing screen sharing between the transmitting end apparatus and any receiving end apparatus. If the transmitting end application is a free version, the method further confirms if the receiving end application is a charged version for deciding whether a limited connection or an unlimited connection should be established. Thus, it is assured that either the transmitting end application or the receiving end application is a charged version, the interests of application developers are protected and users are free from paying twice for establishing one connection.

Abstract: A method of establishing a charged connection using a screen sharing application between multi-platforms is disclosed. A transmitting end application is installed in a transmitting end apparatus of a sharing source. A receiving end application is installed in a receiving end apparatus of a sharing target. If the transmitting end application is a charged version, an unlimited connection is established for performing screen sharing between the transmitting end apparatus and any receiving end apparatus. If the transmitting end application is a free version, the method further confirms if the receiving end application is a charged version for deciding whether a limited connection or an unlimited connection should be established. Thus, it is assured that either the transmitting end application or the receiving end application is a charged version, the interests of application developers are protected and users are free from paying twice for establishing one connection.

Abstract: A screen frame transmission method includes a transmitting end capturing screen frame data and transmitting the screen frame data to a receiving end, and detecting for a user's operation and outputting a mode switching signal; a receiving end buffering the screen frame data transmitted by the transmitting end based on which a display device updates its screen, and according to the mode switching signal, switching to the operating mode or the video mode, wherein during the video mode, a longer playback period of the screen frame data are buffered, and during an operating mode, a shorter playback period of the screen frame data are buffered. According to the aforementioned method, during the video mode, the video may be played back smoothly; during the operating mode, a low latency delay control experience may be provided. A receiving device and screen frame transmission system realizing the above method are also disclosed.