Patent ID: 9660823
Date: 2017-05-23
CPC Classifications: H04L

Claim:
1. A shared presenting method for mobile devices of participants in a conference, in which: an initiator sets up a shared presentation room and sends invitation information of said shared presentation room via a network, wherein said initiator is a mobile device providing a presentation file to share with other mobile devices, said shared presentation room is a virtual presentation room established between two or more mobile devices via a network interconnection within a certain range; a receiver(s) that has received said invitation information joins in said shared presentation room through establishing a network connection, wherein any mobile device within the coverage range of the invitation information of said shared presentation room can act as a receiver; said initiator sends a presenting file and a playing control instruction for said presenting file to said receiver(s) that has joined in said shared presentation room; said receiver(s) receives said presenting file and said playing control instruction, and locally executes a playing control operation to said presenting file in accordance with said playing control instruction; wherein step of joining in said shared presentation room comprises: said receiver(s) sending an authorization key of said shared presentation room to said initiator; said initiator receiving said authorization key sent by said receiver(s), comparing it with a preset authorization key and making the receiver(s) having a consistent authorization key to join in said shared presentation room; and wherein said initiator transmits the authorization key in the manner of Morse codes through sound using the speaker of the initiator mobile device without engaging any network, and only a mobile device within the propagation range of audible sound that has received said sound signal via its microphone and has the capability of decoding Morse codes can access said shared presentation room, and in which the invitation information sent by said initiator comprises an IP address of said initiator; and in the step that the receiver(s) that has received said invitation information joins in said shared presentation room through establishing a network connection, said receiver(s) establishes a network connection with said initiator in accordance with the IP address in said invitation information and joins in said shared presentation room; and in which said initiator further sends a synchronization signal to said receiver(s) that has joined in said shared presentation room; each receiver receives said synchronization signal and executes a playing control operation to said presenting file synchronously in accordance with said synchronization signal.