Shared Presentation System for Mobile Device Synchronization
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Solution Overview
Problem
Current technologies do not allow for convenient simultaneous presentation of a presentation file among multiple mobile devices, limiting user participation in conferences and requiring separate devices for viewing and control.
Innovation Solution
A shared presenting method and system that establishes a virtual presentation room via a network, allowing an initiator to send a presentation file and control instructions to multiple receivers, enabling synchronized playback and marking operations across mobile devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a presentation file is played using a PC or projector, then the presentation can be displayed, but conference participants cannot participate with their own mobile devices
Solution Approach 1:
The patent enables mobile devices to serve multiple functions: they act as both presentation clients (displaying slides) and control devices (receiving and executing control instructions). This multi-functionality allows participants to use their personal mobile devices for presentation viewing and interaction, eliminating the need for separate PC/projector setups while maintaining full presentation capabilities.
Solution Approach 2:
The patent introduces a control instruction transmission mechanism as an intermediary between the presentation source and mobile devices. The system transmits control instructions to mobile devices, which then execute these instructions to control the presentation playback. This intermediary layer enables seamless control of presentations on diverse mobile devices without requiring direct complex configuration.
2Productivity
If multiple mobile devices are used for simultaneous presentation, then participant engagement improves, but data transmission requirements increase
Solution Approach 1:
The patent extracts the control functionality from the presentation data itself and separates it into distinct control instructions. Instead of transmitting complete presentation data to multiple devices, the system transmits only the control instructions (play, pause, next slide, marking operations) to mobile devices. This extraction significantly reduces the data transmission burden while maintaining synchronized presentation across all devices.
Solution Approach 2:
The system performs preliminary actions by establishing a shared presentation room and pre-transmitting necessary presentation data to mobile devices before the actual presentation control begins. This allows the presentation to start smoothly without real-time data transmission delays, reducing overall data transmission requirements during the presentation flow.
3Reliability
If control instructions are transmitted to multiple receivers, then synchronized playback is achieved, but system complexity increases
Solution Approach 1:
The patent segments the control mechanism into distinct components: a control instruction transmission module that handles communication, and receiver plug-ins that handle execution on individual mobile devices. This segmentation allows each component to be optimized independently and simplifies the overall system architecture while maintaining reliable synchronized playback across multiple devices.
Data Source
AI summary
The present invention provides a shared presenting method, system and mobile device, in said shared presenting method, an initiator sets up a shared presentation room and sends invitation information of said shared presentation room via a network a receiver(s) that has received said invitation information joins in said shared presentation room through establishing a network connection; 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. Said mobile device comprises said shared presenting system. The shared presenting method, system and mobile device provided by the present invention can present a presentation file among a plurality of mobile devices simultaneously.